Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125S
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125S is a genuine double-acting standard air cylinder with a Ø250mm bore and 125mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ250 mm
- Stroke125 mm
- Port sizePT1"
- Acting typeDouble acting
- Rod threadM42×2
- CushionAdjustable, 40 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125S
The AirTAC SC250X125S is a large-bore double-acting tie-rod cylinder engineered for heavy-duty linear applications. With a 250 mm bore and 125 mm stroke, it generates a substantial push force of 24544 N at 0.5 MPa (up to 44178 N at 0.9 MPa), making it suitable for pressing, clamping, and lifting large assemblies.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG sensors on the barrel for non-contact position sensing. The 50 mm diameter piston rod with M42x2 male thread provides robust load handling, while the 40 mm adjustable air cushion at each end decelerates the piston smoothly. Operating on filtered air from 0.15 to 1.0 MPa, the SC250X125S uses PT1 inch ports and TPU seals for a standard temperature range of -20 to +70 °C.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125S Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | PT1" |
| Rod thread | M42×2 |
| 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, 40 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 (Ø250mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 24544 N | 23562 N |
| 0.7 MPa | 34361 N | — |
| Max (approx.) | 5006 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 250 | Bore size in mm. |
| ×125 | 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 SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125S Is Used
Heavy Press Tool Actuation
Generates up to 44178 N of force at 0.9 MPa for operating large forming, stamping, or assembly presses where consistent double-acting motion is required.
Pallet Lifting & Transfer
Provides the high thrust needed to lift and position heavy pallets or containers in material handling systems, with sensor feedback for end-of-stroke confirmation.
Large Component Clamping
Secures massive workpieces in machining or welding fixtures. The built-in magnet enables precise clamp/unclamp verification via barrel-mounted sensors.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125S the Right Cylinder?
The SC250 bore is ideal when the SC200's push force of 15708 N at 0.5 MPa is insufficient for the load. For applications requiring even higher force, consider a larger bore or increasing system pressure, as this model can reach 5006 kgf of theoretical force at 1.0 MPa. Always verify that the 50 mm rod is adequately supported against side loads, particularly at longer strokes.
To ensure a correct replacement, match five key points: 250 mm bore, 125 mm stroke, PT1 inch port thread, the built-in magnet (-S) for sensor compatibility, and the basic mounting configuration. This ISO 6430 class cylinder is a direct dimensional replacement for another AirTAC SC250 of the same stroke and options.
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 SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125S FAQ
At 0.5 MPa, the push force is 24544 N and the pull force is 23562 N. At 0.7 MPa, push force increases to 34361 N. The maximum operating push force at 0.9 MPa is 44178 N. These values are based on the 250 mm bore and 50 mm rod diameter.
Yes. The -S suffix in the model code SC250X125S indicates a built-in magnet on the piston. This allows you to clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the tie-rod tube to detect piston position without additional brackets.
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