Airtac AIRTAC SC125-160 Standard Cylinder SC125X1250S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X1250S is a genuine double-acting standard air cylinder with a Ø125mm bore and 1250mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke1250 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X1250S
The AirTAC SC125X1250S is a double-acting single-rod pneumatic cylinder delivering 6136 N push force at 0.5 MPa and up to 11045 N at 0.9 MPa. With a 125 mm bore and 1250 mm stroke, it belongs to the ISO 6430 class of big-bore tie-rod cylinders, designed for heavy linear actuation where consistent force and long travel are required.
This model features a 32 mm piston rod with M27x2 male threads and PT1/2 ports. The built-in magnet (-S suffix) allows CMSG, DMSG, or EMSG reed and solid-state sensors to mount directly on the tie-rod barrel for end-of-stroke detection. Adjustable air cushioning at both ends decelerates the piston over a 28 mm cushion length, protecting the end caps during high-speed operation.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X1250S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X1250S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 1250 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 SC125X1250S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×1250 | 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 SC125X1250S Is Used
Pallet Transfer Systems
Moves heavy pallets across conveyor junctions with 6136 N of push force at standard shop air, handling 1250 mm of lateral travel for wide transfer stations.
Heavy Press Feeders
Feeds large sheet metal blanks into stamping presses. The 32 mm rod and long 1250 mm stroke advance material precisely, with sensors confirming position at each end.
Dock Leveler Actuation
Raises and lowers heavy dock leveler platforms. The adjustable cushion absorbs impact at the 1250 mm stroke ends, while the magnet confirms full retract and extend positions.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X1250S the Right Cylinder?
Choose the SC125 when your application needs the force class between the SC100 (3927 N at 0.5 MPa) and the SC160 (10053 N at 0.5 MPa). For strokes of 1250 mm, verify that side loads are minimal or use an external guide rail; the long unsupported rod can experience bending stress under off-axis forces. For pivoting applications, add a TC centre trunnion or CA/CB rear clevis mount.
To replace an existing cylinder, match five points: 125 mm bore, 1250 mm stroke, PT1/2 port thread, basic mounting (no bracket), and the built-in magnet (-S). This SC125X1250S is a direct fit for another AirTAC SC125 of the same configuration. It is not dimensionally interchangeable with ISO 15552 profile 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 SC125X1250S FAQ
At 0.5 MPa, the push force is 6136 N and the 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 on the piston. You can clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the tie-rod barrel to detect piston position without additional brackets.
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