
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X145 is a genuine double-acting standard air cylinder with a Ø125mm bore and 145mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC125X145 is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, delivering a substantial push force of 6136 N at 0.5 MPa and up to 11045 N at the maximum operating pressure of 0.9 MPa. With a 32 mm diameter piston rod and an M27x2 knuckle thread, this cylinder is built for heavy-duty linear applications requiring a compact 145 mm stroke.
This model features a 28 mm adjustable air cushion at each end to decelerate the piston smoothly, reducing impact and noise. The body length is 203 mm, resulting in a total extended length of approximately 348 mm. As an ISO 6430 class cylinder, it is designed for robust performance with a speed range of 30-500 mm/s.
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X145 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 145 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.
| 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.
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×145 | 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.
The 6136 N push force at 0.5 MPa makes the SC125X145 ideal for raising or stopping heavy pallets on conveyor lines, providing a robust 145 mm lift stroke.
Use this cylinder in welding or machining fixtures where a powerful, consistent 11045 N clamping force at 0.9 MPa is needed to secure large workpieces.
The 32 mm diameter rod and tie-rod construction offer the rigidity needed to operate a heavy diverter gate or chute flap in aggregate or bulk material handling.
Select the SC125X145 when your application requires a force class around 6136 N at standard plant pressure. If your load demands a higher force, stepping up to the SC160 bore provides 10053 N of push force at the same 0.5 MPa. For lighter, faster-moving loads, the SC100 bore delivers 3927 N and may allow for a smaller, more cost-effective footprint.
For a direct replacement, match five critical points: a 125 mm bore, a 145 mm stroke, PT port threads, the basic (no bracket) mounting configuration, and the absence of a built-in magnet. This tie-rod cylinder is shorter than an ISO 15552 profile cylinder and is not dimensionally interchangeable with that standard.
Quick checklist
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. The theoretical maximum force at 1.0 MPa is 1251 kgf.
No. The AirTAC SC series is a tie-rod cylinder with a shorter overall body length than a standard ISO 15552 cylinder. It is not dimensionally interchangeable. It should only replace another AirTAC SC tie-rod cylinder with the same 125 mm bore, 145 mm stroke, PT ports, and basic mounting.
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