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Spring return pneumatic actuator-High Temperature
Aluminium Scotch Yoke Spring return Pneumatic Actuator -Scotch yoke design can generate large opening and closing torque - Piston multiple guides, smooth operation - Precision machined parts ensure safe operation and long service life -Low air consumption
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Product Detail

Specification:

Comply to UNI EN 15714-3:2009 standard

ISO connection standard:UNI EN ISO 5211。

Auxiliary connectioin:NAMUR,VDI/VDE3845

Control angle:90°(-5°~+3°)。

Torque:Relative to control pressure and type.

Working Condition:

Operation temperature:-20℃~+120℃

Pressure:2-8bar

Operating Medium:Filtered compressed air dry or lubricated.The pressure condensation point in accordance with

(ISO 8573-1:2010, Class 3)has to be ≤ - 20℃ or 10℃under ambient temperature.

The maximum particle size in accordance with (ISO 8573-1:2010, Class 5) should not exceed 40 µm.

Scotch Yoke Single Acting Spring return pneumatic actuator Benefits:

Scotch Yoke Single Acting Spring return pneumatic actuator Structural diagram

1. Modular spring pack

According to different air pressure with different spring combination, low stress spring design can effectively extend the service life of the spring.

2.Corrosion-resistant connectors

All connection bolts are stainless steel with good corrosion resistance

3.Piston ring

The piston guide ring, made of ultra high molecular polymer, has an extremely low coefficient of friction, while the material has high hardness and excellent wear resistance, providing precise guidance and long service life.

4.Body

The cylinder body is processed with high precision and anodized. The thickness of the oxide layer is more than 20μm. It has low friction coefficient and excellent anti-corrosion and wear resistance.

5.Shaft bearing

Prevent direct contact between shaft and cylinder body, ensure the positioning accuracy of drive shaft, reduce friction loss, make the actuator efficient operation.

6. Piston bearing

Ensure the positioning accuracy of the piston, so that the piston can be smooth and smooth operation, prevent shifting.

7. Pin connection

The fork and the drive shaft are connected by pins to ensure that the fork and the drive shaft run synchronously. At the same time, the pins also play a role in preventing the drive shaft from flying out, which is a reliable and safe design.


Part Number and Material:

single acting pneumatic actuator Part Number and Material


Schedule


Pos

Description

Material

1

Cylinder 1

Aluminium Alloy

2

Piston

Aluminium Alloy

3

Shaft

Alloy Steel

4

Yoke

Alloy Steel

5

Piston pin

Alloy Steel

6

Yoke pin

Alloy Steel

7

Bearing

Alloy Steel

8

Upper circlip

Stainless Steel

9

Lower circlip

Stainless Steel

10

Upper washer

Crystalline Polymer

11

Lower washer

Crystalline Polymer

12

Upper shaft O-ring

FKM

13

Lower shaft O-ring

FKM

14

Upper shaft bearing

Crystalline Polymer/Graphite Copper Bushing

15

Lower shaft bearing

Crystalline Polymer/Graphite Copper Bushing

16

Upper piston bearing

Crystalline Polymer

17

Lower piston bearing

Crystalline Polymer

18

Piston ring

Crystalline Polymer

19

Piston O-ring

FKM

20

Piston support chip

Crystalline Polymer

21

Connection plate O-ring 2

FKM

22

Connection plate 2

Aluminium Alloy

23

Plate socket screw 2

Stainless Steel

24

Cover socket screw

Stainless Steel

25

Nut O-ring

FKM

26

screws

Stainless Steel

27

End Cover Seal Ring

FKM

28

Cover

Aluminium Alloy

29

Spring

Spring Steels

30

Lower Spring Washer

Aluminium Alloy

31

Spring Shaft

Stainless Steel


Note: 1)180-260 body is split type.

2)140-260 not included.

Above illustration for internal structure demonstration only,not for all models and parts.

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