Airtac AIRTAC SC125-160 Standard Cylinder SC125X170STC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X170STC is a genuine double-acting standard air cylinder with a Ø125mm bore and 170mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke170 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X170STC
The AirTAC SC125X170STC is a double-acting pneumatic cylinder delivering 6136 N of push force at 0.5 MPa (11045 N at the 0.9 MPa max operating pressure). With a 170 mm stroke and a 32 mm diameter piston rod, this tie-rod cylinder is built for demanding linear applications where high force and pivoting movement are required.
This model includes a built-in magnet (-S suffix), allowing CMSG/DMSG/EMSG sensors to be clamped directly onto the barrel for reliable end-of-stroke detection. The TC suffix denotes a centre trunnion mount, supplied with the TCM1 bracket (F-SC125TC), enabling the cylinder to pivot and self-align in swinging load applications. The adjustable air cushion (28 mm) decelerates the piston smoothly, reducing end-of-stroke impact.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X170STC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X170STC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 170 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 AIRTAC SC125-160 Standard Cylinder SC125X170STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×170 | 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 SC125X170STC Is Used
Heavy Part Transfer
Pivoting lift-and-place mechanism for moving heavy components between conveyor lines, using the centre trunnion mount to handle the arcing motion.
Clamping & Fixturing
High-force clamping of large weldments or castings in a machining fixture, with magnetic sensors confirming clamp engagement before the cycle starts.
Press & Assembly Tools
Actuating a pivoting press platen in a small assembly press, where the 11045 N max force handles press-fit insertion tasks reliably.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X170STC the Right Cylinder?
For applications requiring less force, consider stepping down to the SC100 bore, which provides 3927 N push at 0.5 MPa. If you need even greater thrust, the SC160 bore offers 10053 N at the same pressure. For this 170 mm stroke, side-loading is a key consideration; ensure the load is guided externally to prevent bending stress on the 32 mm rod and premature bearing wear.
When replacing this cylinder, match five critical points: 125 mm bore, 170 mm stroke, PT port thread, the centre trunnion (TC) mounting with its TCM1 bracket, and the built-in magnet (-S) for sensor compatibility. This SC model is a tie-rod design, shorter than an ISO 15552 cylinder, and is not dimensionally interchangeable with that standard.
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 SC125X170STC FAQ
At the standard 0.5 MPa operating pressure, 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 at 1.0 MPa is 1251 kgf.
No. The AirTAC SC series is a tie-rod cylinder that is shorter in overall length than a comparable ISO 15552 profile cylinder. It is not dimensionally interchangeable. It is a direct replacement only for another AirTAC SC125 tie-rod cylinder with matching stroke, PT ports, centre trunnion mount, and magnet.
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