Airtac SC125-160 Standard Cylinder SC125X300H
The AirTAC Airtac SC125-160 Standard Cylinder SC125X300H is a genuine double-acting standard air cylinder with a Ø125mm bore and 300mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke300 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SC125-160 Standard Cylinder SC125X300H
The AirTAC SC125X300H is a double-acting single-rod pneumatic cylinder delivering 6136 N push and 5734 N pull at 0.5 MPa, rising to 11045 N at 0.9 MPa. This model features a 300 mm stroke with a 32 mm diameter piston rod and M27x2 male rod thread for robust mechanical coupling.
Equipped with Viton (FKM) seals designated by the ‘H’ suffix, this cylinder is rated for high-temperature operation from 0 to +150°C, making it suitable for hot environments where standard seals would degrade. The SC125 is an ISO 6430 class tie-rod cylinder with a 28 mm adjustable air cushion and PT1/2 ports.
Airtac SC125-160 Standard Cylinder SC125X300H Technical Specifications
| Model | Airtac SC125-160 Standard Cylinder SC125X300H |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 300 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 SC125-160 Standard Cylinder SC125X300H
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×300 | 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 SC125-160 Standard Cylinder SC125X300H Is Used
High-Temperature Actuation
The Viton seals allow this SC125X300H to operate reliably in ovens, autoclaves, or near heat sources up to 150°C, where standard NBR or TPU seals would fail.
Heavy-Duty Clamping
Generating over 11 kN of force at 0.9 MPa, this cylinder provides the high clamping pressure needed for heavy fabrication jigs, welding fixtures, and die-casting mold locks.
Material Handling Lift
With a 300 mm stroke and 5734 N pull force, it is well-suited for lifting and tilting heavy bins or pallets in high-temperature wash-down or drying stations.
Is the Airtac SC125-160 Standard Cylinder SC125X300H the Right Cylinder?
Choose the SC125 when your application requires a force class around 6136 N at standard plant pressure. For a lighter, more compact solution, step down to the SC100 bore, which provides 3927 N push at 0.5 MPa. For higher force requirements, the SC160 bore delivers 10053 N at the same pressure.
At a 300 mm stroke, ensure side loads are managed; long unsupported strokes on a single rod can create bending moments. Use an external linear guide or a guided cylinder if the load is not perfectly axial. For direct replacement, match the 125 mm bore, 300 mm stroke, PT1/2 port thread, and ensure the high-temperature Viton seal material is specified.
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 SC125-160 Standard Cylinder SC125X300H FAQ
At 0.7 MPa operating pressure, the theoretical push force is 8590 N and the pull force is 5734 N. The maximum operating force at 0.9 MPa is 11045 N push.
No. This is a standard double-acting cylinder and will not hold position if air pressure is exhausted or lost. For load-holding safety, you must add an external rod lock, a pilot-operated check valve, or use a mechanical brake.
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