Airtac SC125-160 Standard Cylinder SC125X400H
The AirTAC Airtac SC125-160 Standard Cylinder SC125X400H is a genuine double-acting standard air cylinder with a Ø125mm bore and 400mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke400 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SC125-160 Standard Cylinder SC125X400H
The SC125X400H is a large-bore double-acting pneumatic cylinder delivering 6136 N of push force at 0.5 MPa and up to 11045 N at 0.9 MPa. With a 400 mm stroke and a robust 32 mm diameter piston rod, it is built for heavy industrial linear actuation tasks.
This model is fitted with high-temperature Viton (FKM) seals, extending the operating temperature range from the standard -20–70°C up to 0–150°C. It features a 28 mm adjustable air cushion at each end to decelerate high-inertia loads smoothly, and PT1/2 port threads for reliable air supply.
Airtac SC125-160 Standard Cylinder SC125X400H Technical Specifications
| Model | Airtac SC125-160 Standard Cylinder SC125X400H |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | PT1/2 |
| Rod thread | M27×2 |
| 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, 28 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (approx.) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SC125-160 Standard Cylinder SC125X400H
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | 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 SC125-160 Standard Cylinder SC125X400H Is Used
Conveyor Diverters
Operates heavy-duty diverter gates and transfer stations on large conveyor systems, handling high material flow rates with the 11045 N push force at 0.9 MPa.
Hot Press Actuation
Powers the clamping and pressing mechanisms in hot-forming presses or autoclaves, where the Viton seals reliably withstand continuous 150°C ambient temperatures.
Compactor Ram Drive
Drives the main ram on compactors and baling machines, providing the consistent 6136 N force at 0.5 MPa needed to compress waste or recyclable materials into dense bales.
Is the Airtac SC125-160 Standard Cylinder SC125X400H the Right Cylinder?
Select the SC125 bore when your application requires a force between the SC100 (push 3927 N at 0.5 MPa) and the SC160 (push 10053 N at 0.5 MPa). For this 400 mm stroke, ensure the load is guided externally if side forces are present; the 32 mm rod can experience bending under unsupported side loads at full extension. A guided cylinder or external linear rail is recommended.
For a direct replacement, match these five points exactly: 125 mm bore, 400 mm stroke, PT port thread, basic mounting (no bracket), and the absence of a built-in magnet. This is an ISO 6430 class tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
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 SC125-160 Standard Cylinder SC125X400H FAQ
At the standard operating pressure of 0.5 MPa, the push force is 6136 N and the pull force is 5734 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 11045 N.
This is a non-magnetic, basic mount cylinder with PT ports and Viton seals. To replace it, you need another 125mm bore, 400mm stroke tie-rod cylinder with PT1/2 ports, no magnet, and a temperature rating of at least 150°C. It will not directly swap with an ISO 15552 cylinder.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SC125-160 Standard Cylinder SC125X400H
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.