Airtac AIRTAC SC125-160 Standard Cylinder SC125X250S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X250S is a genuine double-acting standard air cylinder with a Ø125mm bore and 250mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke250 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X250S
The SC125X250S is a double-acting pneumatic cylinder delivering 6136 N of push force and 5734 N of pull force at 0.5 MPa. With a 250 mm stroke and a 32 mm diameter piston rod, it is built for medium-stroke clamping, pressing, and heavy linear actuation tasks. The built-in magnet (suffix -S) allows CMSG/DMSG/EMSG sensors to mount directly on the tie-rod barrel for reliable end-of-stroke detection.
This ISO 6430 class cylinder features a 28 mm adjustable air cushion at each end to decelerate the piston smoothly. The body length A is 203 mm, giving a total extended length of approximately 453 mm. Operating pressure ranges from 0.15 to 1.0 MPa, with a proof pressure of 1.5 MPa, and the standard TPU seals suit ambient temperatures from -20 to +70 °C.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X250S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X250S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 250 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 SC125X250S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×250 | 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 SC125X250S Is Used
Material Handling Gates
Actuates diverter gates and stops on heavy-duty conveyor lines, with the 6136 N push force managing large packages or pallets at 0.5 MPa.
Industrial Clamping
Provides the high force needed for pneumatic clamps in welding fixtures or assembly jigs, with magnetic sensors confirming clamp position.
Heavy Part Ejection
Ejects formed metal or plastic parts from large press tools, using the 32 mm rod for rigidity and the adjustable cushion to reduce impact.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X250S the Right Cylinder?
For higher force, step up to the SC160 bore, which provides 10053 N at 0.5 MPa. If the 250 mm stroke creates a risk of rod bending under side load, consider an external linear guide or a guided cylinder assembly. The SC125X250S is a genuine AirTAC tie-rod cylinder; to match it for a replacement, confirm the 125 mm bore, 250 mm stroke, PT port thread, basic mounting (no bracket), and the presence of the -S magnet for sensor compatibility.
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 SC125X250S FAQ
At 0.7 MPa operating pressure, the push force is 8590 N and the pull force is 5734 N. The maximum theoretical force at 1.0 MPa is 1251 kgf (push).
Yes. The -S suffix indicates a built-in magnet, so AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors can be clamped directly onto the cylinder barrel for position sensing.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac AIRTAC SC125-160 Standard Cylinder SC125X250S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.