• AT Pneumatic Actuator
  • AT Pneumatic Actuator

AT Pneumatic Actuator

Material of pneumatic actuator:  Aluminum alloy .

Bleed pressure for pneumatic actuator:  0.4MPA-0.8MPA

Output torque for pneumatic actuator:  13.5N.M-4700N.M

Connection size according to:  ISO5211

Catalogue:

Pneumatic actuators.pdf


Our company produce the air torqu actuator have 7 years,we also is the primary agency of AT Pneumatic Actuator in china,the AT brand is from korea, the quality is very good for Pneumatic Actuators.


TECHNICAL FEATURES for AT Pneumatic Actuator:

1. Alodur hard anodized body

Extruded aluminum body with Alodur special hard anodization applied internally and externally for a complete corrosion protection, a lower friction coeffi cient  and an increased surface hardness for the longest wearing resistance. Additional protective coatings are avail-able on the external surface for different environmental working conditions.

2.Pistons design

Dual piston rack and pinion design for compact construction, symmetric mounting position, high-cycle life and fast operation, reverse rotation can be accomplished in the fi eld by simply inverting the pistons. Both pistons are anodized for a better corrosion and wearing resistance

3.Two independent external travel stop adjustments

As a standard, travel stops allowing adjustment for – 5° up to +15° on the close position, and for + 5° up to -15° on the open position. This allows accurate valve alignment, stroke limitation and provides on actuator a large travel adjustment.

4.Universal and anti-blowout drive shaft

Integral drive-shaft is available with double square as standard to permit versatility, lower and more fl exible inventory. Others connec-tions and an aluminum adaptor on top are available on requests.

5.One compact and unique design

With identical body and end caps for double acting and spring return model to reduce inventory, allows fi eld conversion, by adding or removing modular spring cartridge

6.Position indication

As standard actuators are supplied with a position indicators and a graduated ring allowing to achieve easily the correct actuatoralve position. Other types of position indicators suitable for direct mounting of sensors (P+F, IFM, etc.) and mechanical limit-switches avail-able on request.

7.Multiple bearings and guide

Bearings on piston and racks for precise operation, low friction, high cycle life and piston guides preventing shaft blowout

8.Modular preloaded spring

Cartridge design in high grade coated steel for simple range versatility, greater safety and corrosion resistance.

9.Electroless nickel-plated drive-shaft

Blow-out proof, bearing guided for improved safety and maximum cycle life.

10.Fully machined teeth

On piston racks and pinion shaft for accurate positioning, low backlash and maximum engagement resulting in overall efficient operation.

11.Selected and high quality bearings and seals

Provide a wide operating temperature range, low friction and high cycle life.

12.Fasteners

Stainless steel fasteners for long term corrosion resistance

13.Full compliance

To specifi cations ISO 5211, DIN 3337 and VDI/VDE 3845 providing the product  interchangeability and the easiest valve automation and accessories installation


 pneumatic actuators



1、Indicator

Position indicator with NAMUR is convenient for mounting accessories such as Limit Switch box, positioner and so on.


2、Pinion

The pinion is high-precision and integrative,made form nickelled-alloy steel, full conform to the latest standards of ISO5211,DIN3337,NAMUR. The dimensions can be customized and the stainless steel is available.


3、Actuator Body

According to the different requirements, the extruded aluminum alloy ASTM6005
Body can be treated with hard anodized, powder  polyester  painted ( different
colours is available such as blue, orange, yellow etc.),PTFE or Nickel plated.


4、End caps

Die-casting aluminum powder polyester painted  in  different  colours,  PTFE  or Nickel plated.


5、Pistons


The twin rack pistons are made form Die-casting   aluminum   treated   with   Hard anodized or made form Cast steel  with galvanization. Symmetric mounting position, long cycle life and fast operation, reversing rotation by simply inverting the pistons.


6、Travel adjustment

The tow independent external travel stop adjustment bolts can adjust±5°at both open and close directions easily and precisely.


7、High performance springs

Preloaded coating springs are made form the high quality material for resistant to corrosion and longer service life, which can be denounced safelyand conveniently to satisfy different requirements of torque by changing quantity of springs.


8、Bearings & Guides

Made form low friction, long-life compound material, to avoid the direct contact between metals. The maintenance and replacement are easy and convenient.


9、O-rings

NBR rubber O-rings provide trouble-free operation at standard temperature ranges.For high and low temperature applications Viton or Silicone



Parts and Material


 pneumatic actuators



NO
DESCRIPTION
QTY
STANDARD METERIAL
PROTECTION
OPTIONAL METERIAL
1
Indicator screw
1
plastic
2
Indicator
1
plastic
3
Spring clip
1
Stainless Steel
4
Thrust washer
1
Stainless Steel
5
Outside washer
1
engineering plastics
6
Body
1
Extruded aluminum alloy
Hard anodized etc
7
Inside washer
1
engineering plastics
8
Cam
1
Alloy steel
9
O ring (pinion top)
1
NBR
Viton/Silicone
10
Bearing(pinion top)
1
engineering plastics
11
Pinion
1
Alloy steel
Nickel plated
Stainless Steel
12
O-ring (pinion bottom)
1
engineering plastics
13
Bearing(pinion bottom)
1
NBR
Viton/Silicone
14
Plug
2
NBR
Viton/Silicone
15
O-ring(Adjust screw)
2
NBR
Viton/Silicone
16
Washer(Adjust screw)
2
Stainless Steel
17
Nut(Adjust screw)
2
Stainless Steel
18
Adjust screw
2
Stainless Steel
19
Piston
2
Cast aluminum/Cast steel
anodized/Zinc galvanized
Stainless Steel
20
Guide(Piston)
2
engineering plastics
21
Bearing(Piston)
2
engineering plastics
22
O-ring(Piston)
2
NBR
Viton/Silicone
23
Spring
0~12
Spring steel
dip coating
24
O ring(End cap)
2
NBR
Viton/Silicone
25
End cap
2
Cast aluminum
Powder polyster painted etc
26
Cap screw
8
Stainless Steel
27
Stop screw
2
Stainless Steel
28
Nut(stop screw)
2
Stainless Steel


DOUBLE ACTING ACTUATORS

DOUBLE ACTING ACTUATORS

Air to Port A forces the pistons outwards, causing the pinion to turn counterclockwise while the air is being exhausted from Port B.
Air to Port B forces the pistons inwards, causing the pinion to turn clockwise while the air is being exhausted from Port A.
Air to Port A forces the pistons outwards, causing the pinion to turn clockwise while the air is being exhausted from Port B.
Air to Port B forces the pistons inwards, causing the pinion to turn counterclockwise while the air is being exhausted from Port A.
Spring return actuators
Spring return actuators
pistons outwards, causing the springs to compress, The pinion turns counterclockwise while air is being exhausted from port B.
Loss of air pressure on port A, the stored energy in the springs forces the pistons inwards. The pinion turns clockwise while air is being exhausted from port A.
Air to port B forces the pistons outwards, causing the springs to compress, The pinion turns counterclockwise while air is being exhausted from port B.
Loss of air pressure on port A, the stored energy in the springs forces the pistons inwards. The pinion turns clockwise while air is being exhausted from port A.

{We hope you can check our catalogue in our webpage if you want to know more mounting dimension}



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