Pneumatic Actuator Heavy Duty Type (AS Series)

Description

AUTOMA Pneumatic Actuator Heavy Duty Type (AS Series)

The AUTOMA Pneumatic Actuator Heavy Duty Type (AS Series) is a high-performance linear and rotary pneumatic actuator built for heavy-load and high-pressure valve automation. It is engineered to produce high output torque, resist corrosion, and deliver stable performance in challenging conditions such as extreme temperatures, high vibration, and aggressive chemical environments.

Designed with robust materials, advanced sealing systems, and precise internal mechanisms, the AS Series is ideal for industries that require continuous, reliable, and powerful pneumatic actuation.

Model Name

AS250D
AS300D
AS350D

Features

Scotch-Yoke Type
Powder Coating
ISO 5211, DIN 3337
Use Honing Pipe

Specification

Item

AS250D

AS300D

AS350D

Operating Type

Scotch – Yoke

Operating Media

Compressed Dry Air

Operating Pressure

4.5 ~ 7kg/cm2

Rotating Angle

90° ±5°

Operating Temperature

-20°C ~ 80°C(Option : -40°C ~ 200°C)

Weight(kg)

160

270

380

Part & Material

AUTOMA Pneumatic Actuator Heavy Duty Type (AS Series)

No.	Part Name	Materials	No.	Part Name	Materials
1	Body	Steel Alloy	22	Piston Fixing Bolt	Stainless Steel
2	Shaft	Steel Alloy	23	Cylinder Cover(Out)	Steel Alloy
3	Shaft O-ring(Bottom)	NBR	24	Holder	Steel Alloy
4	Shaft Bush	Engineering Plastic	25	Cylinder Cover Washer(Out)	Stainless Steel
5	Shaft O-ring(Top)	NBR	26	Cylinder Cover Bolt(Out)	Stainless Steel
6	Yoke	Steel Alloy	27	Stopper Washer	Stainless Steel
7	Yoke Block	Steel Alloy	28	Stopper Nut	Stainless Steel
8	Body Cover	Steel Alloy	29	Stopper Bolt	Stainless Steel
9	Body Cover Bolt	Stainless Steel	30	Spring Rod	Steel Alloy
10	Piston Rod	Steel Alloy	31	Spring Case Blot	Stainless Steel
11	Piston Rod Bush	Engineering Plastic	32	Spring Rod Bush	Engineering Plastic
12	Cylinder Cover Bolt(In)	Stainless Steel	33	Spring Case	Steel Alloy
13	Cylinder Cover Washer(In)	Stainless Steel	34	Spring Guide	Steel Alloy
14	Cylinder Cover(In)	Steel Alloy	35	Spring	Steel Alloy
15	Cylinder Bolt	Stainless Steel	36	Spring Fixing Washer	Stainless Steel
16	Piston Rod O-ring	NBR	37	Spring Fixing Bolt	Stainless Steel
17	Cylinder	Steel Alloy	38	Retainer	Steel Alloy
18	Cylinder Guide Bolt	Steel Alloy	39	Spring Case Cover	Steel Alloy
19	Piston	Steel Alloy	40	Spring Case Cover Bolt	Stainless Steel
20	Piston O-ring	NBR	41	Spring Stopper Nut	Stainless Steel
21	Piston Fixing Washer	Stainless Steel	42	Spring Stopper Bolt	Stainless Steel

Torque & Table

Model	Angle	Supply Air
		4bar	5bar	6bar	Spring
AS250D	0°	1,170	1,810	2,350	1,300
	45°	590	950	1,340	840
	90°	930	1,800	1,980	1,470
AS300D	0°	2,400	3,650	4,800	2,550
	45°	1,180	1,850	2,500	1,500
	90°	1,760	3,160	4,600	3,130
AS350D	0°	4,650	6,800	8,900	3,650
	45°	1,450	2,600	3,700	2,730
	90°	1,330	3,200	5,250	5,200

Dimension

AUTOMA Pneumatic Actuator Heavy Duty Type (AS Series)

Model	L1	L2	ØA	ØD	S	KEY	ØC	N-M	PT
AS250D	445	1000	313	55	65	16 x 10	165	4-M20	PT 3/8″
AS300D	545	1085	370	70	85	20 x 12	254	8-M16	PT 3/8″
AS350D	720	1120	410	80	85	28 x 16	298	8-M20	PT 1/2″