Airtac AIRTAC SC125-160 Standard Cylinder SC160X400H
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC160X400H is a genuine double-acting standard air cylinder with a Ø160mm bore and 400mm stroke, PT3/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ160 mm
- Stroke400 mm
- Port sizePT3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 29 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC160X400H
The AirTAC SC160X400H is a double-acting single-rod pneumatic cylinder built on a rugged tie-rod design, delivering a substantial 10053 N of push force at 0.5 MPa (18095 N at the 0.9 MPa maximum operating pressure). With a 40 mm diameter piston rod and a 400 mm stroke, it is engineered for heavy-duty linear actuation tasks that require both high force and a moderate working travel.
This model is equipped with Viton (FKM) seals, designated by the 'H' suffix, which shifts the operating temperature range to 0 to +150 °C, making it suitable for hot environments like foundries, autoclaves, or engine test stands. The cylinder features an adjustable pneumatic cushion (29 mm length) at both ends to decelerate the piston smoothly, and its body length A is 239 mm, resulting in a total extended length of approximately 639 mm.
Airtac AIRTAC SC125-160 Standard Cylinder SC160X400H Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC160X400H |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø160 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | PT3/4 |
| Rod thread | M36×2 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 29 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (approx.) | 2050 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac AIRTAC SC125-160 Standard Cylinder SC160X400H
| SC | Standard tie-rod cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×400 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac AIRTAC SC125-160 Standard Cylinder SC160X400H Is Used
High-Temperature Clamping
The Viton seals allow the SC160X400H to operate reliably in ambient temperatures up to 150°C, making it ideal for clamping fixtures in welding cells, drying ovens, or hot-forming presses where standard seals would degrade.
Heavy Press & Assembly
With over 18000 N of force available at 0.9 MPa, this cylinder is a powerful actuator for hydraulic-to-pneumatic conversion in small assembly presses, riveting stations, and heavy component insertion tasks.
Foundry & Autoclave Actuation
Deploy this cylinder for gate actuation on high-temperature molds or for opening and closing autoclave doors, where the combination of high force, a 400 mm stroke, and FKM seal durability is essential.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC160X400H the Right Cylinder?
Select the SC160X400H when your application demands a force output in the 10000 N range at standard plant pressure. If your load requires less force, stepping down to an SC125 bore reduces the push force to 6136 N at 0.5 MPa, offering a more compact and economical solution. For even higher force requirements, the SC200 bore provides 15708 N at the same pressure.
For this 400 mm stroke, always assess the potential for side loading on the 40 mm rod. If the load is not guided externally, the rod bearing can experience excessive bending stress, leading to premature seal wear or rod damage. In such cases, integrate an external guide rail or consider a guided cylinder assembly. As a direct replacement, ensure the new unit matches the 160 mm bore, 400 mm stroke, PT port thread, basic mounting, and the high-temperature Viton seal specification.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac AIRTAC SC125-160 Standard Cylinder SC160X400H FAQ
At 0.7 MPa operating pressure, the theoretical push force is 14074 N, and the pull force on the retract stroke is 9425 N. The maximum push force at the 0.9 MPa limit is 18095 N.
No, the AirTAC SC series is a tie-rod cylinder and is physically shorter than a comparable ISO 15552 profile cylinder, so the mounting dimensions are not interchangeable. It is a direct dimensional match only for another AirTAC SC tie-rod cylinder with the same 160 mm bore, 400 mm stroke, PT ports, and basic mounting.
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