Airtac AIRTAC SC125-160 Standard Cylinder SC125X875S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X875S is a genuine double-acting standard air cylinder with a Ø125mm bore and 875mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke875 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X875S
The AirTAC SC125X875S is a double-acting single-rod pneumatic cylinder delivering 6136 N push force at 0.5 MPa (11045 N at 0.9 MPa). With an 875 mm stroke and a 32 mm diameter piston rod, this model includes a built-in magnet (-S suffix) that allows CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for non-contact position sensing.
This 125 mm bore cylinder belongs to the ISO 6430 class with a speed range of 30-500 mm/s. The adjustable air cushion at each end (28 mm cushion length) decelerates the piston smoothly. The body length A is 203 mm, giving a total extended length of approximately 1078 mm. Operating pressure is 0.15-1.0 MPa with filtered air.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X875S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X875S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 875 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 SC125X875S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×875 | 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 SC125X875S Is Used
Heavy Part Transfer
The 6136 N push force at 0.5 MPa moves large steel fabrications or castings along an 875 mm transfer line, with magnetic sensors confirming end-of-stroke.
Pallet Layer Forming
Pushes a full layer of boxes onto a pallet stack. The long 875 mm stroke reaches across a standard pallet width, and the adjustable cushion protects the load from jarring.
Press Feed Ejection
Ejects formed panels from a stamping press. The built-in magnet signals the retract position to the press control, enabling a safe interlock cycle at 30-500 mm/s.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X875S the Right Cylinder?
For applications needing slightly less force, the 100 mm bore SC100 series provides 3927 N push at 0.5 MPa. If more force is required, step up to the 160 mm bore SC160 which delivers 10053 N at the same pressure. The 875 mm stroke is within the 1500 mm maximum standard stroke for bore 125.
At this stroke length, the 32 mm rod is susceptible to bending under side loads. Use an external linear guide or a guided cylinder configuration to protect the rod bearing and seals. When replacing, match exactly: 125 mm bore, 875 mm stroke, PT port thread, the built-in magnet (-S), and any mounting accessory.
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 SC125X875S FAQ
At 0.5 MPa, push force is 6136 N and pull force is 5734 N. At the maximum operating pressure of 0.9 MPa, push force reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
Yes. The -S suffix indicates a built-in magnet, so AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors can be mounted directly on the barrel to detect piston position without external brackets.
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