Airtac AIRTAC SC125-160 Standard Cylinder SC125X250TC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X250TC is a genuine double-acting standard air cylinder with a Ø125mm bore and 250mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke250 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X250TC
The SC125X250TC is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, combining a 125 mm bore with a 250 mm stroke. At 0.5 MPa it generates 6136 N pushing and 5734 N pulling, rising to 11045 N push at the maximum operating pressure of 0.9 MPa. The 32 mm diameter piston rod and 28 mm adjustable air cushion are sized for demanding industrial sequences.
This model is factory-assembled with the TC centre trunnion mount (includes TCM1 bracket, order code F-SC125TC), allowing the cylinder to pivot during operation. The body length A is 203 mm, giving a total extended length of approximately 453 mm. As an ISO 6430 class big-bore cylinder, its speed range is 30-500 mm/s. Ports are PT1/2 with an M27x2 rod thread.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X250TC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X250TC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 250 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 SC125X250TC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×250 | 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 SC125X250TC Is Used
Pallet Transfer & Lift
The 6136 N push force at 0.5 MPa easily lifts and transfers heavy pallets or engine blocks on production lines. The centre trunnion mount lets the cylinder pivot smoothly as the load arcs.
Heavy-Duty Clamping & Pressing
Delivers up to 11045 N at 0.9 MPa for holding large weldments, pressing bearings, or clamping heavy fabrications. The adjustable cushion absorbs energy at stroke end to protect the tooling.
Material Handling Gates & Diverters
Ideal for actuating heavy gates or chute diverters in mining, aggregate, or recycling plants. The 32 mm rod and trunnion mount handle repetitive pivoting cycles with reliable double-acting control.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X250TC the Right Cylinder?
Choose the SC125 bore when your application needs 6136 N at 0.5 MPa. If you can work with 3927 N, stepping down to the SC100 saves space and air consumption. For strokes of 250 mm the rod bearing is well supported, but any side load or off-axis force must be managed with an external linear guide—the 32 mm rod is not designed to carry bending moments alone.
When replacing an existing cylinder, match five points: 125 mm bore, 250 mm stroke, PT1/2 ports, centre trunnion (TC) mounting, and confirm whether a magnet (-S) is needed. The SC is a tie-rod cylinder and is shorter than an ISO 15552 profile; dimensional interchangeability is limited to another AirTAC SC of the same configuration.
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 SC125X250TC FAQ
At the standard 0.5 MPa supply, it produces 6136 N pushing and 5734 N pulling. At 0.7 MPa this rises to 8590 N push, and at the maximum operating pressure of 0.9 MPa it reaches 11045 N push. The theoretical maximum at 1.0 MPa is 1251 kgf.
No. The SC125 is a double-acting cylinder and does not lock or hold position when air is exhausted or the directional valve is centred. If the application requires load holding in a power-off or emergency-stop condition, you must add an external rod brake, a pilot-operated check valve, or a mechanical lock.
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