Airtac AIRTAC SC125-160 Standard Cylinder SC125X950S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X950S is a genuine double-acting standard air cylinder with a Ø125mm bore and 950mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke950 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X950S
The AirTAC SC125X950S is a double-acting tie-rod cylinder delivering 6136 N push force at 0.5 MPa (11045 N at 0.9 MPa), making it a powerful linear actuator for heavy industrial tasks. Its 950 mm stroke is within the 1500 mm maximum standard range for the 125 mm bore, and the built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors for rod-position feedback.
This model features a 32 mm piston rod with M27x2 male threads, PT1/2 port connections, and a 28 mm adjustable air cushion at each end to decelerate high-inertia loads. The body length A is 203 mm, giving a total extended length of approximately 1153 mm. Operating pressure is 0.15-1.0 MPa with TPU seals rated for -20 to +70 °C.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X950S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X950S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 950 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 SC125X950S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×950 | 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 SC125X950S Is Used
Heavy Part Transfer
Moves large castings or weldments between machining stations with 950 mm of travel, using the magnet sensors to confirm full extend and retract before the next cycle.
Press-Fit Assembly
Generates over 11000 N of push force at 0.9 MPa to press bearings or bushings into housings, with adjustable cushioning to soften the impact at the end of the stroke.
Pallet Dispenser Actuation
Drives the lift mechanism in a pallet magazine, where the long 950 mm stroke raises a stack of pallets and the magnetic sensors sequence the next dispense cycle.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X950S the Right Cylinder?
Choose the SC125 bore when your application needs between 6136 N and 11045 N of pneumatic thrust; for lighter loads, the SC100 bore provides 3927 N at 0.5 MPa, while the SC160 steps up to 10053 N. The 950 mm stroke is standard for this bore, but always confirm side-load conditions—long unsupported strokes on a 32 mm rod can experience bending under off-axis forces.
For replacement, match five points: 125 mm bore, 950 mm stroke, PT1/2 port thread, the built-in magnet (-S suffix), and basic mounting. This cylinder is a tie-rod design and is not dimensionally interchangeable with ISO 15552 profile cylinders, though its 125 mm bore falls under the ISO 6430 class for larger pneumatic cylinders.
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 SC125X950S FAQ
At 0.5 MPa, it produces 6136 N extending and 5734 N retracting. At the maximum operating pressure of 0.9 MPa, the push force reaches 11045 N. The theoretical force at 1.0 MPa is 1251 kgf.
No. The SC125X950S is a double-acting cylinder that requires continuous air pressure to maintain position. If pressure is lost or the directional valve is centered, the piston will drift. For position holding without live pressure, you must add an external rod brake, a mechanical lock, or a pilot-operated check valve.
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