Sames Nanobell II SB Manual de utilizare

Index revision : D - March 2019 1 7101

User manual

SAMES KREMLIN SAS - 13, Chemin de Malacher - 38240 MEYLAN - FRANCE

Tel. 33 (0)4 76 41 60 60 - www.sames-kremlin.com

Nanobell II SB

Index revision : D - March 2019 2 7101

All communication or reproduction of this document, in any form whatsoever and all use or

communication of its contents are forbidden without express written authorisation from

SAMES KREMLIN.

The descriptions and characteristics mentioned in this document are subject to change without

prior notice.

WARNING : SAMES KREMLIN SAS is registered with the Ministry of Labour as a training

institution.

Throughout the year, our company offers training courses in the operation and

maintenance of your equipment.

A catalogue is available on request. Choose from a wide range of courses to

acquire the skills or knowledge that is required to match your production

requirements and objectives.

Our training courses can be delivered at your site or in the training centre at our

Meylan head office.

Training department:

Tel. 33 (0)4 76 41 60 04

E-mail: formation-clie[email protected]

SAMES KREMLIN SAS operating manuals are written in French and translated into English, German, Spanish, Italian

and Portuguese.

The French version is deemed the official text and SAMES KREMLIN will not be liable for the translations into other

languages.

Index revision : 3

Nanobell II SB

1. Health and Safety Instructions- - - - - - - - - - - - - - - - - - - - - - - - - - - - 5

1.1. Configuration of the certified equipment . . . . . . . . . . . . . . 5

1.2. Marking on the atomizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3. Precautions for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.4. Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.4.1. Regulatory tests to be carried out on the equipment

according to standard EN 50176. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.4.2. Installation rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.5. Important Recommendations . . . . . . . . . . . . . . . . . . . . . . 12

1.5.1. Compressed Air Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.5.2. Product Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.5.3. Bearing Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.5.4. Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.5.5. Shaping Air. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.5.6. High Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.5.7. Maximum Speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.5.8. Vibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.5.9. Bell Cup / Turbine Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.5.10. O-ring Seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.5.11. Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.5.12. Residual pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.5.13. Safety devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.5.14. Restriction on robot wrist movements. . . . . . . . . . . . . . . . . . 14

1.5.15. Mechanical Collision. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.5.16. Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.5.17. Sound level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.5.18. Specific maintenance provisions . . . . . . . . . . . . . . . . . . . . . 15

1.6. Guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2. Description - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 17

2.1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.2. Function of the parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3. Technical Characteristics - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 20

3.1. Dimensions, gravity center and tool center point (mm) . 20

3.1.1. Hollow wrist version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.2. Full wrist version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.2. Working characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.3. Safety characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.4. Operating Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.4.1. Turbine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.4.2. Turbine Rotation Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.4.3. Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4. Diagrams - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 28

5. Startup - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 29

5.1. Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.2. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Index revision : 4

5.3. Shutdown and Startup Procedures . . . . . . . . . . . . . . . . . . . 31

5.3.1. Shutdown Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.3.2. Startup Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6. Maintenance - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 32

6.1. Summary table of maintenance operations . . . . . . . . . . . 32

6.2. Preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.2.1. Procedure A: Atomizer exterior . . . . . . . . . . . . . . . . . . . . . . . . 33

6.2.2. Procedure B1: Magnetic bell cup. . . . . . . . . . . . . . . . . . . . . . 35

6.2.3. Procedure B2: Shaping air assembly. . . . . . . . . . . . . . . . . . . . 36

6.2.4. Procedure B3: Injector / Injector holder assembly . . . . . . . . 37

6.3. Corrective maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.3.1. Procedure C1: Body installation / removal . . . . . . . . . . . . . . 38

6.3.2. Procedure C2: Replacement of turbine. . . . . . . . . . . . . . . . . 38

6.3.3. Procedure C3: Replacement of solvent pipette. . . . . . . . . . 39

6.3.4. Procedure C4: Replacement of microvalves . . . . . . . . . . . . 39

6.3.5. Procedure C5: Replacement of body o-rings . . . . . . . . . . . . 40

6.3.6. Procedure C6: Replacement of fittings . . . . . . . . . . . . . . . . . 40

6.3.7. Procedure C7: Replacement of high-voltage unit . . . . . . . . 41

7. Spare parts list- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 42

7.1. Nanobell II hollow wrist . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

7.2. Nanobell II full wrist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.3. Body assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7.3.1. Equipped body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.4. Injector / injector holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

7.5. Robot adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

7.5.1. Adapter for Motoman EXP 2050 and 2900 robots. . . . . . . . . 51

7.5.2. Adapter for Fanuc P250 robot. . . . . . . . . . . . . . . . . . . . . . . . . 51

7.5.3. Adapter for Staubli RX 160 robot. . . . . . . . . . . . . . . . . . . . . . . 51

7.5.4. Adapter for Staubli TX 250 robot . . . . . . . . . . . . . . . . . . . . . . . 52

7.5.5. Adapter for ABB IRB 4400 robot. . . . . . . . . . . . . . . . . . . . . . . . 52

7.6. Grounding kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

8. Option Nanobell II, Gun spraying head version - - - - - - - - - - - - - 54

8.1. Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

8.1.1. Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

8.2. Fluid diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

8.3. Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

8.4. Procedure to transform a Nanobell II bell cup version,

to a Nanobell II Gun version . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

8.5. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

8.5.1. Summary table of maintenance operations . . . . . . . . . . . . . 58

8.5.2. Preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

8.5.3. Maintenance corrective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

8.6. Spare parts for the Gun spraying head . . . . . . . . . . . . . . . 61

8.6.1. Head. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

8.6.2. Equipotential plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Index revision : D - March 2019 5 7101

1. Health and Safety Instructions

This manual contains links to the following user manuals:

•see RT Nr 7071 for the user manual of Hi-TE bellcups for magnetic air bearing turbine.

•see RT Nr 6350 for the user manual of the turbine type ”BTM”.

•see RT Nr 6021 for the user manual of the microvalve ou see RT Nr 6422 for the microvalve

with bellow.

•see RT Nr 7068 for the user manual of the high voltage unit UHT 158.

•see RT Nr 6190 for the microphone.

•see RT Nr 6364 for the user manual of the electric systems,

•see RT Nr 7122 for the user manual of the control module GNM 300.

•see RT Nr 6213 for the user manual of the control module GNM 200.

1.1. Configuration of the certified equipment

The whole of these user manuals defines the configuration of the certified equipment.

1.2. Marking on the atomizer

The specific EXAT marking for each sprayer is indicated in this section.

The equipment is C-L type according to standard EN 50176 (§ 5.1).

*: Nanobell II.

The X symbol placed behind the EU type examination certification indicates that when a "dI/dt

safety" fault appears any movement likely to reduce the safe distance must be stopped (stop

moving the sprayer and stop the conveyor transporting the parts to be sprayed) before the

fault reset is authorised.

Atomizer Nanobell II - P/N 910016011

Hollow wrist

Equipped body - P/N 910008553

S12 Turbine - P/N 1525802

Atomizer Nanobell II - P/N 910016012

Full wrist

Equipped body - P/N 910008553

S12 Turbine - P/N 1525802

UHT 158 - P/N 910007566

P/N Nanobell II

(*)

GNM 300

P/N

910024028

or

GNM 200A

P/N 1517071

X X 910016011 X

X X 910016012 X

44

350 mJ < E < 2 J EN 50176

0080

*

Index revision : D - March 2019 6 7101

1.3. Precautions for Use

This document contains information that all operators should be aware of and understand

before using the atomizer concerned. This information highlights situations that could result in

serious damage and indicates the precautions that should be taken to avoid them.

WARNING : Before any use of the Nanobell II equipment, check that all operators:

• have previously be trained by the compagny SAMES KREMLIN, or by their distributors

registered by them for this purpose.

• have read and understood the user manual and all rules for installation and operation, as

laid out below.

It is the responsibility of the operators’ workshop manager to ensure these two points and it is

also his responsibility to make sure that all operators have read and understood the user

manuals for any peripheral electrical equipment present in the spraying area.

1.4. Warnings

WARNING : Safety may be jeopardized if this equipment is not operated, disassembled and

reassembled in compliance with the instructions given in this manual and in any

European Standard or national safety regulations in force.

WARNING : Equipment performance is only guaranteed if original spare parts distributed by

SAMES KREMLIN are used.

WARNING : To guarantee an optimal assembly, spare parts must be stored in a temperature

close to their temperature of use. Should the opposite occur, a sufficient waiting

time must be observed before the installation, so that all the elements are assem-

bled in the same temperature.

Index revision : D - March 2019 7 7101

WARNING :

This equipment must only be used in spraying locations according to standard EN 50176 (§ 5.4

and 5.7). The equipment has to be used only within ventilated in order to reduce risks for the

health of the operators, fire or explosion. The efficiency of the extraction ventilation system has

to be daily checked.

Within explosive atmospheres produced by the spraying process, only appropriate explosion-

proof electrical equipment has to be used.

Before carrying out any cleaning or general work on atomizers in the spraying area, the high

voltage generator must be switched off and the atomizer HV circuit discharged to the ground.

The pressurised coating product or the pressurised air must not be directed towards people or

animals.

Appropriate measures have to be taken to avoid, during periods when the equipment is not

used and/or when the equipment is broken, the presence of potential energy (liquid or air pres-

sure or electric) inside the equipment.

The operator must wear shoes according to standard EN ISO 20344 and the insulation resistance

measured must not exceed 100 MΩ.

The protective clothes, including gloves, must conform to standard EN 1149-5 and the insulation

resistance measured must not exceed 100 MΩ.

Using individual protection equipment will limit the risks of contact and/or inhalation of toxic

product, gas, vapours, fog or dusts that can be produced while using the equipment. The user

has to follow the coating product manufacturer’s recommendations.

Electrostatic spraying equipment must be serviced regularly in accordance with the informa-

tion and instructions given by SAMES KREMLIN.

It is strictly prohibited to stick adhesive tape on the atomizer body.

Cleaning operations must be carried out either in authorised areas equipped with a

mechanical ventilation system, or using cleaning liquids with a flash point at least 15 °C higher

than room temperature.

Only metal containers can be used for cleaning liquids and they must have a reliable ground

connection.

Inside the booth it is forbidden to use a naked flame, glowing object or a device likely to pro-

duce sparks.

It is also forbidden to store inflammable products, or vessels that have contained them, close

to the booth.

The surrounding area must be kept clear and clean.

Index revision : D - March 2019 8 7101

WARNING : The use of very high voltage increases the risk of sparks. SAMES KREMLIN atom-

izers and high-voltage electrostatic generators are designed to minimize this risk. Although the

HV electrode is the only accessible part, a safety distance of X mm (refer to: Board see § 3.3

page 25) has to be maintained between the parts of the sprayer that are under high voltage and

all the parts that are grounded.

The distances authorized from application, specified in the user manual of the atomizer, are a

function overall length of cables HV (electric capacities). HV connection of the atomizer to the

well of the HVU is authorized only by the use of a HV cable only one length, no adapter is not

authorized

In addition, a careful check must be made to ensure that any conducting or semi-conducting

part closer than 2.5 m to the atomizer is correctly grounded.

If it is not, electrical charges capable of causing sparks could build up on it. Operating person-

nel must wear anti-static shoes and gloves to avoid this risk.

All metal parts of the booth and parts to be painted must be correctly grounded. Ground resist-

ance must be less than or equal to 1 MΩ (minimum measurement voltage 500 V). This must be

checked regularly.

Grounding is mandatory for all the conductive envelops of the electrical equipments and for

all the conductive components within explosive atmospheres by conductive connection with

the ground terminal.

Finally, for the same reasons, the spraying area must have an anti-static floor, such as concrete,

metal duckboard, etc.

It is essential to provide sufficient ventilation in the spraying booths to avoid the build up of

inflammable vapors.

The effectiveness of the overcurrent protection (di/dt) must be checked every day. This check

must be carried out in an area with no explosive atmosphere by placing a ground device near

the electrode of the atomizer when the atomizer is switched on (the operator must be con-

nected to ground): the control module must switch to the fault state.

Additional equipment has to be placed outside the dangerous area and its starting device has

to be servo-controlled to the running mode of the booth aspiration fan. The correct working of

the servo-control has to be checked once a week.

A warning board has to be placed in full view close to the sparing area.

An excessive turbine speed can engender major damages on the turbine as well as a loss of

connection bell/turbine; this represents a risk for persons and equipment. The maximum speed

indicated in this user manual must not be exceeded (see § 3.2 page 24).

Index revision : D - March 2019 9 7101

1.4.1. Regulatory tests to be carried out on the equipment according to standard EN 50176

The tests must be carried out on the spraying equipment. The tests must be carried out by com-

petent personnel and include the tests described below (see § 6.3 table 3 in standard EN

50176).

Type of test Requirements

The fixed inflammable coating liquid material

electrostatic coating must be tested to ensure it is

safe for workers.

In this context, and particularly for the disconnec-

tion threshold, the overload current Iü and the

minimum voltage Umin must be defined and

documented in relation to the operational and

local conditions (see also § 5.2.2 in standard

EN50176).

Forced ventilation effectiveness (air extraction

systems) See §5.4.4 in standard EN50176

The safe high voltage disconnection must be

tested for operation under controlled voltage

and under constant voltage.

See 5.2.2 and 5.2.2.1 in standard EN50176.

The disconnection threshold Iü must be defined

and documented in relation to the operational

and local conditions.

It must be tested if the high voltage is discon-

nected and if there is an unacceptable increase

in the operating current Ib and if the disconnec-

tion threshold Iü is reached.

In this context, the disconnection threshold Iü

defined during the initial test must be checked.

A disconnection threshold Iü that may increase

the possibility of dangerous discharges or electri-

cal flashovers between the parts under high volt-

age and the grounded parts if the safe distance

falls below its permitted value is not permitted.

3G category devices See 5.2.2 and 5.2.2.1in standard EN50176

2G category devices See 5.2.2, 5.2.2.1 and 6.4 in standard EN50176

For the operation at constant current, the safe

disconnection of the high voltage electricity sup-

ply must be tested.

See 5.2.2 and 5.2.2.2 in standard EN50176.

The disconnection threshold Umin must be

defined and documented in relation to the oper-

ational and local conditions.

Checks must be carried out to ensure that the

high voltage is disconnected if the high voltage

falls unacceptably below the disconnection

threshold Umin.

In this context, the disconnection threshold Umin

defined during the initial test must be checked.

A disconnection threshold Umin that may increase

the possibility of dangerous discharges or electri-

cal flashovers

between the parts under high voltage and the

grounded parts if the safe distance falls below its

permitted value is not permitted.

3G category devices See 5.2.2 and 5.2.2.2in standard EN50176

Index revision : D - March 2019 10 7101

These tests must be carried out periodically The following maximum intervals between tests are

recommended (see § 7.2.3 table 4 in standard EN 50176).

2G category devices See 5.2.2, 5.2.2.2 and 6.4 in standard EN50176

Protection against discharge energy which is too

high See 5.2.3, 5.8.2 and 5.8.3 in standard EN50176

Protection against cleaning product inflamma-

tion See 5.2.4.in standard EN50176

Effectiveness of the protection measures against

direct contact See 5.5.2, 5.5.6 and 5.8.5 in standard EN50176

Effectiveness of the earthing measures See 5.7 in standard EN50176

Slaving / protection against inputs See 5.5.2 in standard EN50176

Effectiveness of the local fire extinguishing system

See 5.2.5 in standard EN50176

In addition to the location's protection system,

local fire extinguishing systems (fixed and dedi-

cated to the object) must provide effective

protection for the dangerous zone located

between the output from the coating material

and the part to be processed. It must be proven

for each individual case that the roles of the local

fire extinguishing systems and the location's pro-

tection systems may be satisfied by a single extin-

guishing system.

conducting parts of the coating material's supply

system See 5.8.1 in standard EN50176

Minimum distance in the air See 5.5.7 and 5.8.5 in standard EN50176

Other tests According to standard EN 12215:2004.

Reference Test frequency

Complete installation safety test in relation to

workers 12 months

Forced ventilation effectiveness in continuous

Disconnection in the event of an overload cur-

rent after each start-up

Low voltage disconnection after each start-up

Discharge energy weekly

Protection against cleaning product inflamma-

tion before each cleaning

Protection against direct contact weekly

Earthing measures weekly

Protection against inputs weekly

Site's fire extinguishing system before each cleaning

Conducting parts of the coating material's supply

system weekly

Minimum distance in the air weekly

Other tests in accordance with standard EN 12215:2004

Type of test Requirements

Index revision : D - March 2019 11 7101

1.4.2. Installation rules

Nanobell II using solvent-borne paints with a resistivity ρ ≥ 6 MΩ.cm.

WARNING : All the conductive components must be connected to the ground potential (metal-

lic fittings of Moduclean, gear pump, etc...).

WARNING : It is strictly prohibited to install an unspecified system not complying with the rules

described above.

Paint resistivity ρ ≥ 6 MΩ.cm

1 Control module GNM 200 or GNM 300 (out of the ATEX area)

2 Low voltage connection

3 High voltage unit UHT 158

4 Dump return line connected to the ground potential

5 Supplies of paints and rinsing products connected to the ground potential

6Safety distance (area around the the atomizer head from the parts with high

voltage outer cover, bellcup etc...)

x

S

A

1

2

5

DES03662

S: Rinsing product

A: Air supply

1: Product 1 supply

2: Product 2 supply Nota: Hoses and low voltage

cable pass outside the robot

Nota: Paint, solvent and

dump circuits require a spe-

cial kit to be grounding (see §

7.7 page 50)

4

2

3

6

5

GNM

1

DES05857

Index revision : D - March 2019 12 7101

1.5. Important Recommendations

1.5.1. Compressed Air Quality

The air must be filtered to a level that will guarantee a long life time and prevent any pollution

during painting.

The filter must be installed as close as possible to the facility. The filter cartridges must be

changed regularly to ensure that the air is clean.

PTFE tape or glue should not be used between the filter and the bearing as glue residue or

pieces of PTFE may block the small holes of the air bearing and cause turbine failure.

The inside of hoses supplying air to the atomizer and the ports of the quick-disconnect plate

must be clean and free of any traces of paint, solvent or other foreign matter.

The guarantee does not cover faults caused by unclean, unfiltered bearing air resulting from

disregard of the previous recommendations.

WARNING : If the air is not correctly filtered, the bearing may become fouled resulting in a

turbine operating fault. The filtering system used must prevent particles greater

than 5 µm in diameter from reaching the bearing.

WARNING : The guarantee does not cover damage caused by foreign matter such as paint,

solvent or other substances entering the air circuits of the Nanobell II.

1.5.2. Product Quality

The paint must be filtered to prevent any damage to the atomizer.

The maximum permissible particle size in the atomizer is 200 µm.

1.5.3. Bearing Safety

The compressed air connection to the air bearing must be made directly to the supply circuit

without the use of an isolating valve.

During operation, the air bearing must be continuously under pressure, otherwise considerable

damage may be caused. A sudden cut in the air supply could destroy the air bearing of the

turbine. Wait until the turbine has stopped completely before cutting off the bearing air.

Procedure for cutting off air to the air bearing:

• Switch off the turbine rotation air supply

• Wait until the turbine has stopped completely (at least 150 s).

• Switch off the bearing air supply.

Running the turbine with bearing air pressure of less than 6 bar at the atomizer inlet can dam-

age the bearing. The standard bearing air pressure is 6 bar at the air control cabinet.

All these pressure values are measured at the atomizer inlet. If the bearing pressure drops below

6 bar at the turbine or atomizer inlet, cut off the air supply to the turbine.

In addition, a 25-liter air reserve should be available so that the turbine brakes gradually if the

main air supply is cut off suddenly.

WARNING : The guarantee does not cover faults that occur if the turbine is operated with in

sufficient bearing air pressure.

Index revision : D - March 2019 13 7101

1.5.4. Locking

Do not atomize the product if the bellcup is not turning at a speed of at least 15000 rpm. At

lower speeds, paint or solvent may enter the turbine, bearing and control circuits. Opening the

head valve, injector rinsing valve and bellcup exterior rinsing valve must be prohibited when

the bellcup is not turning. Only qualified personnel are authorized to by-pass this locking system

for flow rate checks.

WARNING : If the turbine is not already operating, wait, after starting it up, until the bellcup

reaches at least 15000 rpm before opening the head valve. The recommended

minimum waiting time is 2 seconds.

1.5.5. Shaping Air

Do not atomize the product until the shaping air rate is at least 80 Nl/mn (i.e. 0.3 bar at the

atomizer inlet). If it is less, there may be a feedback of atomized product which fouls the outer

cover and the inside surface of the air shroud resulting in application faults.

1.5.6. High Voltage

Disable the high voltage if the Nanobell II is not operated for a prolonged period (conveyor

shutdown, no objects to be painted, slack periods, etc.) to prevent ionization of the air.

WARNING : Rinsing cycles (bellcup exterior and injector) must be carried, beforehand switch-

ing off the high voltage power supply.

1.5.7. Maximum Speed

Excessive turbine speed can result in serious damage to the turbine and loss of connection

between the bell cup and turbine, presenting a risk to persons and equipment.

The speed must

not exceed 45,000 rpm.

WARNING : The guarantee does not cover damage resulting from a rotation speed greater than

45 000 tr/min.

1.5.8. Vibrations

If the atomizer vibrates more than usual, the cause is generally unbalanced rotating parts.

There may be dry paint deposits on the bell cup or rotor. If any of these situations arise, it is essen-

tial to correct them. Excessive unbalance may damage the turbine resulting in failure to oper-

ate or even loss of the bell cup / turbine connection, presenting a risk for persons and

equipment.

WARNING : The guarantee does not cover damage caused by unbalance of the rotating parts.

1.5.9. Bell Cup / Turbine Fitting

The bell cup must be correctly fitted on the turbine, a snap must be heard; the two cylinders

must fit on top of each other without any foreign matter between them. If fitting is incorrect, the

connection may be lost and the bell cup thrown out still spinning, presenting a risk for persons

and equipment.

Index revision : D - March 2019 14 7101

1.5.10. O-ring Seals

Use the seals recommended in this manual. For solvent-based products, seals in contact with

the product must be chemically inert seals resistant to swelling or chemical attack. The Nano-

bell II is only guaranteed to operate correctly if it is used with seals whose size and material con-

form to this manual.

1.5.11. Ventilation

Do not begin applying paint with the Nanobell II before starting up the ventilation system in the

spraying booth. If the ventilation is cut, toxic substances such as organic solvents or ozone may

remain in the spraying booth, resulting in a risk of fire, poisoning or irritation.

1.5.12. Residual pressure

Before all maintenance or repair operations, remove paint and solvent from the atomizer,

switch off the high voltage power supply and cut the paint, solvent and air supplies, then

release residual pressure in each supply system. Residual pressure may lead to component

damage and expose personnel to

serious injuries. Paint or solvent dispersion may also lead to poisoning or irritation.

1.5.13. Safety devices

During installation of the Nanobell II, it is important to set up safety devices enabling high volt-

age power, paint, solvent and air supplies to be cut immediatly if there is a problem.

• Detection of control system faults

• Detection of high voltage surges linked with the SAMES KREMLIN high voltage module.

• Detection of air pressure drops.

• Detection of ventilation failure.

• Detection of fire

• Detection of human presence.

• Detection of turbine rotation speed faults.

Failure to install safety devices could result in a risk of fire, expose the personnel to serious injury

and damage the equipment.

WARNING : The electrostatic projection systems must be equipped with an automatic fire extin-

guishing system (according to § 5.2.5 in standard EN 50176).

1.5.14. Restriction on robot wrist movements

In order to optimize the life time of the low voltage cable as well as the supply hoses, it is rec-

ommended to limit the movement of axis 6 to ± 0,5 turns compared with the axis 3.

1.5.15. Mechanical Collision

The guarantee does not cover damage resulting from the operating environment (for example

collision with the robot).

1.5.16. Ambient Temperature

The sprayer is designed to work normally under room temperature between 0°C and + 40°C.

In order to optimise application quality, it is advised to work under room temperature between

+ 15°C and + 28°C.

The storage temperature will never exceed +60°C.

1.5.17. Sound level

The accoustic pressure level, continuous, equivalent, weighted, equals to 59.7 dBA.

Conditions of measurement:

The equipment has been run at its maximum values, the measures have been made from the

operator desk of the paint test booth "API" (closed booth with glass walls) of the Research &

Development laboratory at SAMES KREMLIN Meylan France.

Index revision : D - March 2019 15 7101

Method of measurement:

The accoustic pressure level, continuous, equivalent, weighted (59.7 dBA) is given in LEQ value,

measured for observation periods of at least 30 seconds.

1.5.18. Specific maintenance provisions

The access of the booth, near the atomizer in operation, will have to be proscribed and con-

trolled by safety devices (see § 1.5.13 page 14) which will have to stop the equipment in case

of intrusion of people in the area.

Nevertheless, for maintenance operation, these safety devices will have to be arranged in

order to allow certain operations and checks (only for persons trained and entitled by

SAMES KREMLIN).

The turbine rotation with a bellcup, in all the cases, wil be prohibited with personnel in the area.

Index revision : D - March 2019 16 7101

1.6. Guarantee

Under the guarantee, which applies only to the buyer, SAMES KREMLIN agrees to repair

operating faults resulting from a design fault, materials or manufacture, under the conditions

set out below.

The guarantee claim must define, in writing, the exact nature of the fault concerned.

The SAMES KREMLIN guarantee only covers equipment that has been serviced and

cleaned according to standard procedures and our own instructions, that has been fitted with

parts approved by SAMES KREMLIN or that has not been modified by the customer.

More precisely, the guarantee does not cover damage resulting from:

• the customer's negligence or inattentiveness,

• incorrect use,

• failure to follow the procedure

• use of a control system not designed by SAMES KREMLIN or a SAMES KREMLIN

control system modified by a third party without written permission from an authorized

SAMES KREMLIN technical agent,

• accidents such as: collision with external objects, or similar events,

• flooding, earthquake, fire or similar events,

• inadequately filtered bearing air (solid particles more than 5 µm in diameter),

• inadequately filtered paint and solvent,

• use of seals not complying with SAMES KREMLIN recommendations,

• starting up turbine rotation without minimum bearing air pressure (6 bar),

• exceeding the maximum speed of 45,000 rpm under load,

• starting up rotating parts that are unbalanced (dry paint on bellcup, rotor or damaged

bellcups),

• pollution of air circuits by fluids or substances other than air.

SAMES KREMLIN atomizer Nanobell II is covered by a one-year guarantee for use in two 8-

hour shifts under normal operating conditions.

By concession, the guarantee is extended to 10000 hours on the air turbine of the Nanobell II.

The guarantee does not apply to wearing parts such as atomizing bellcups, diaphragms, clips,

seals, etc.

The guarantee will take effect from the date of the first startup or of the provisional acceptance

report.

Under no circumstances, either in the context of this guarantee or in other contexts, will

SAMES KREMLIN be held responsible for physical injury or intangible damage, damage to

brand image and loss of production resulting directly from its products.

Index revision : D - March 2019 17 7101

2. Description

2.1. General

Atomizer Nanobell II is a robotic rotary atomizer, dedicated according to versions, to the appli-

cation of solvented or waterborned paints, mono paintings or multi-components. It is used in

environments of automatic electrostatic atomization, its design makes of this atomizer equip-

ment simple, easy to maintain.

Light and compact, it can equip with the small size robots.

Equipped with a magnetic air bearing turbine, the atomizer Nanobell II can atomize with a

maximum rotation speed of 45,000 rpm.

Atomizer Nanobell II allows to improve the quality of production while making significant sav-

ings of paint.

Main components:

DES05855

Turbine

Support

Injector / Injec-

tor holder

Shaping air

assembly

Bell cup

Microvalve

Insulator

UHT 158 High

voltage unit

Equippe

d body

Front Nut

Nanobell II

Cover

Hollow wrist

Index revision : D - March 2019 18 7101

DES05855

Turbine

Support

Injector / Injec-

tor holder

Shaping air

assembly

Bell cup

Fitting

Microvalve

Insulator

UHT 158 High

voltage unit

Equippe

d body

Front Nut

Nanobell

II Cover

Full wrist

Index revision : D - March 2019 19 7101

2.2. Function of the parts

Parts Function

Bell cup The bell cup atomizes all types of paint. It is selected

according to the type of product used.

Turbine

The rotation of the bell cup is produced by a pneumatic

motor. Atomization results from the centrifugal forces gen-

erated by rotation of the bell cup. The size of sprayed

paint particles decreases as the speed of the turbine

motor increases.

Body

The body houses all the fluid circuits, product, air and sol-

vent microvalves and the injector / injector holder assem-

bly.

Shaping air assembly

(outer cover / shaping air

shroud)

These parts control the size and pattern diameter and

transfer the particles to the parts to be painted. They pro-

tect internal components and allow easy cleaning.

Injector holder

Injector

Keeps the injector in the center of the bell cup. It also has

an opening to supply the microphone air.

The injector is used to regulate the paint flow rate into the

bell cup. The inner diameter of the restrictor is selected

according to the viscosity of the paint and the required

paint thickness

Microvalve

Air-controlled, 2-way, normally closed valves used for vari-

ous operations: paint supply, paint rinse, bell cup exterior

rinse, injector rinse

UHT 158

High voltage unit

Receives a low voltage supply that it converts into high

voltagefor charging the atomized paint particles; these

are attracted to the surface to be painted, which has a

ground connection

Index revision : D - March 2019 20 7101

3. Technical Characteristics

3.1. Dimensions, gravity center and tool center point (mm)

3.1.1. Hollow wrist version

Note:

TCP : Tool Center Point

Weight: 5 kg

Gravity center (CG) in millimeters

X = -22.43

Y = - 0.48

Z = 161.50

232,68

372,05

182,68

328,74

374,34

399,34

0

161,50

22,43

60°

DES05777

Z

X

CG

60°

Output CS: Wrist Payload CG location

TCP@

250mm

TCP@

200mm

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Sames Nanobell II SB Manual de utilizare

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