Airtac AIRTAC SC125-160 Standard Cylinder SC125X25TC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X25TC is a genuine double-acting standard air cylinder with a Ø125mm bore and 25mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke25 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X25TC
The AirTAC SC125X25TC is a double-acting tie-rod cylinder delivering 6136 N push force at 0.5 MPa (11045 N at the 0.9 MPa max operating pressure). With a 25 mm stroke and a 32 mm diameter piston rod, it suits short-throw clamping, pressing, and positioning tasks where a compact extended length is critical.
This model includes a centre trunnion (TC) mount, supplied with the TCM1 bracket (F-SC125TC), allowing the cylinder to pivot during operation. The adjustable air cushion (28 mm) decelerates the piston smoothly at end-of-stroke, reducing impact noise and wear in high-cycle applications.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X25TC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X25TC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 25 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 SC125X25TC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×25 | 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 SC125X25TC Is Used
Short-Stroke Clamping
Delivers 11045 N at 0.9 MPa for powerful workpiece clamping in machining centres and welding fixtures, with trunnion pivot allowing angular alignment.
Press-Fit Assembly
Ideal for bearing or bushing insertion where a short, controlled 25 mm stroke and high force ensure precise seating without overtravel.
Diverter Gate Actuation
The centre trunnion mount lets the cylinder swing to operate diverter gates on conveyors, handling heavy product flows with the 6136 N push at standard line pressure.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X25TC the Right Cylinder?
Choose the SC125 bore when the 100 mm bore's 3927 N at 0.5 MPa is insufficient; step down to SC100 if the 125 bore's force exceeds your structural limits. For this 25 mm stroke, side-load bending is minimal, but always align the rod axis with the load to protect the rod bearing.
To replace an existing cylinder, match five points: 125 mm bore, 25 mm stroke, PT port thread, centre trunnion (TC) mounting with TCM1 bracket, and the absence of a magnet. This SC series is shorter than an ISO 15552 cylinder, so verify tie-rod mounting dimensions against the original unit.
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 SC125X25TC FAQ
At 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, push force reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
No. The AirTAC SC series is a tie-rod cylinder and is shorter than an ISO 15552 profile cylinder. It is not dimensionally interchangeable with ISO 15552. Only replace with another AirTAC SC tie-rod cylinder matching bore, stroke, port, mounting, and magnet options.
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