Airtac AIRTAC SC125-160 Standard Cylinder SC125X50SH
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X50SH is a genuine double-acting standard air cylinder with a Ø125mm bore and 50mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke50 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X50SH
The SC125X50SH is a double-acting pneumatic cylinder delivering 6136 N of push force at 0.5 MPa, built for short-stroke clamping and pressing tasks in high-temperature environments. Its 32 mm rod and 28 mm adjustable air cushion handle end-of-stroke deceleration reliably, while the Viton (FKM) seals shift the operating range to 0–150 °C.
This model includes a built-in magnet, allowing CMSG/DMSG/EMSG sensors to mount directly on the tie-rod barrel for rod-position feedback. The 50 mm stroke keeps the extended length compact—body length A of 203 mm plus stroke—making it a genuine AirTAC solution for hot-process automation where space is tight.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X50SH Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X50SH |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 50 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 SC125X50SH
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×50 | 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 SC125X50SH Is Used
Hot Press & Molding
Viton seals and a 0–150 °C rating make this cylinder suitable for short-stroke clamping in heated platen presses, tire molds, or composite curing stations where standard seals would degrade.
High-Temp Position Sensing
The built-in magnet works with CMSG/DMSG sensors to confirm clamp closure or part ejection in ovens and autoclaves, providing reliable end-of-stroke signals without external flag switches.
Heavy Part Ejection
With 6136 N of push force at 0.5 MPa, the SC125X50SH ejects heavy castings or stampings from hot dies, where the short 50 mm stroke delivers a powerful, controlled punch.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X50SH the Right Cylinder?
Choose the SC125 bore when your application needs roughly 6000 N of force at standard shop air. If you can accept less force, stepping down to the SC100 bore saves space and air consumption (3927 N push at 0.5 MPa). For higher force, move to the SC160 bore (10053 N at 0.5 MPa). The 50 mm stroke is well within the 1500 mm maximum for this bore.
When replacing an existing cylinder, match five points: 125 mm bore, 50 mm stroke, PT port thread, the built-in magnet (-S suffix), and the basic mounting style. This is a tie-rod cylinder, not an ISO 15552 profile, so dimensional interchangeability is limited to another AirTAC SC125 tie-rod 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 SC125X50SH FAQ
At 0.5 MPa the push force is 6136 N and pull force is 5734 N. At 0.7 MPa push reaches 8590 N, and at the maximum operating pressure of 0.9 MPa it delivers 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
No. The SC125X50SH is a double-acting cylinder and will drift or drop if supply pressure is lost or the directional valve is centered. For load holding without live pressure, you must add an external rod brake, a mechanical lock, or a pilot-operated check valve in the circuit.
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