Airtac AIRTAC SC125-160 Standard Cylinder SC125X310
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X310 is a genuine double-acting standard air cylinder with a Ø125mm bore and 310mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke310 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X310
The SC125X310 is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, combining a 125 mm bore with a 310 mm stroke. At 0.5 MPa air pressure it generates 6136 N of push force and 5734 N on the pull stroke, placing it in a high-force class suitable for heavy pressing, clamping, and lifting tasks. The 32 mm diameter piston rod and 28 mm adjustable air cushion at each end help manage high inertial loads smoothly.
This model is built with a body length A of 203 mm, resulting in an extended length of approximately 513 mm. It uses PT1/2 ports and an M27x2 rod thread for robust mechanical connections. The SC125-250 bore range follows an ISO 6430 class tie-rod design, which is shorter than a typical ISO 15552 profile cylinder, so dimensional interchangeability is limited to other AirTAC SC tie-rod units of the same configuration.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X310 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X310 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 310 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 SC125X310
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×310 | 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 SC125X310 Is Used
Heavy-Duty Press Frames
Delivers up to 11045 N of force at 0.9 MPa for pressing bearings, bushings, or forming light-gauge metal in dedicated assembly fixtures.
Pallet Stop & Lift Gates
The 310 mm stroke and high force actuate heavy-duty pallet stops or lift-and-transfer gates in conveyor systems, handling palletized loads reliably.
Sawmill & Wood Processing
Provides the sustained push force needed for log clamping and board positioning in sawmill carriages, where durability and tie-rod construction are valued.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X310 the Right Cylinder?
Choose the SC125X310 when your application needs the force of a 125 mm bore but a 100 mm bore's 3927 N push at 0.5 MPa is insufficient. If your load is lighter, stepping down to an SC100 reduces air consumption and physical size. For a 310 mm stroke, ensure the rod is not subjected to significant side loading; the 32 mm rod is robust, but long unsupported strokes can create a bending moment. Use an external guide rail or a guided cylinder if side forces are present.
To replace an existing cylinder, match five key points: 125 mm bore, 310 mm stroke, PT1/2 port thread, the specific mounting accessory (this is a basic body, so no bracket is included), and the magnet option (this model has no built-in magnet). A direct replacement must share these exact attributes to guarantee fit and performance.
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 SC125X310 FAQ
At the standard maximum operating pressure of 0.9 MPa, the push force is 11045 N and the pull force is 10321 N (calculated from the 5734 N pull force at 0.5 MPa). At a common 0.7 MPa supply, push force is 8590 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
No. The SC125X310 is a double-acting cylinder and will not hold its position if air pressure is lost or the directional valve is centered. The piston can drift or drop. For load holding without live pressure, you must add an external rod lock, a mechanical brake, or a pilot-operated check valve in the circuit.
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