Airtac AIRTAC SC125-160 Standard Cylinder SC125X850S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X850S is a genuine double-acting standard air cylinder with a Ø125mm bore and 850mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke850 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X850S
The AirTAC SC125X850S is a double-acting single-rod pneumatic cylinder delivering 6136 N of push force at 0.5 MPa (11045 N at the 0.9 MPa maximum operating pressure). Its 850 mm stroke suits long-travel material handling, pressing, or clamping operations where consistent force is required across the full extension.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to be mounted directly on the tie-rod barrel for contactless position sensing. The 32 mm diameter piston rod and 28 mm adjustable air cushion at each end provide robust guidance and smooth deceleration, while the PT1/2 port supplies ample flow for the 125 mm bore.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X850S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X850S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 850 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 SC125X850S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×850 | 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 SC125X850S Is Used
Long-Stroke Part Transfer
Moves heavy components or pallets 850 mm across a conveyor or assembly station with sensor-confirmed end-of-stroke positioning.
Heavy-Duty Clamping
Applies up to 11045 N of clamping force at 0.9 MPa for holding large weldments, castings, or structural assemblies during fabrication.
Automated Sorting Gate
Drives a high-force diverter gate in bulk material handling or logistics systems, with magnetic sensors verifying open/closed state.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X850S the Right Cylinder?
The SC125X850S is an ISO 6430 class big-bore cylinder, ideal for applications needing high force without stepping up to the 160 mm bore (10053 N push at 0.5 MPa). If your load requires less force, the SC100 bore provides 3927 N at 0.5 MPa. For this 850 mm stroke, ensure the rod is protected from side loads; an external guide or rod-alignment coupler is recommended to prevent bending stress on the 32 mm rod and premature bearing wear. When replacing, match five points: 125 mm bore, 850 mm stroke, PT port thread, the built-in magnet (-S), and your existing mounting accessory (this unit is basic, no bracket).
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 SC125X850S FAQ
At the standard 0.5 MPa operating pressure, push force is 6136 N and pull force (rod side) 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 in SC125X850S indicates a built-in magnet inside the piston. This allows AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors to be clamped onto the tie-rod barrel for precise, non-contact position detection at any point along the 850 mm stroke.
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