Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X375S
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X375S is a genuine double-acting standard air cylinder with a Ø250mm bore and 375mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ250 mm
- Stroke375 mm
- Port sizePT1"
- Acting typeDouble acting
- Rod threadM42×2
- CushionAdjustable, 40 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X375S
The SC250X375S is a heavy-duty double-acting tie-rod cylinder delivering 24544 N of push force at 0.5 MPa (44178 N at 0.9 MPa). With a 250 mm bore and 375 mm stroke, it handles large-scale industrial actuation where raw power is essential. The built-in magnet (suffix -S) allows direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors on the barrel for contactless position feedback.
This model uses a 50 mm diameter piston rod with an M42x2 male knuckle thread and a 1-inch PT port. The adjustable air cushion (40 mm length) decelerates the piston smoothly at stroke ends, protecting the end caps during high-energy stops. The body length A is 294 mm, giving a total extended length of approximately 669 mm. Operating pressure ranges from 0.15 to 1.0 MPa with TPU/NBR seals rated for -20 to +70 °C.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X375S Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X375S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 375 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 SC250X375S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 250 | Bore size in mm. |
| ×375 | 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 SC250X375S Is Used
Sawmill Log Handling
Positions and clamps large-diameter logs on carriages and debarking lines. The 24544 N force at 0.5 MPa provides secure holding, and the magnet enables sensor-based sequencing with downstream conveyors.
Marine Hatch Actuation
Opens and closes heavy watertight doors or cargo hatches on vessels. The robust tie-rod construction withstands harsh, humid environments, and the adjustable cushion prevents slamming.
Heavy Press Ejection
Ejects large formed parts or compacted material from industrial presses. The 44178 N maximum push force at 0.9 MPa overcomes high breakaway friction, with the magnetic piston confirming full retraction.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X375S the Right Cylinder?
For applications needing slightly less force, the 200 mm bore SC200 series provides 15708 N push at 0.5 MPa, while stepping up is not possible within the SC family as 250 mm is the largest bore. Always match replacement cylinders on five points: 250 mm bore, 375 mm stroke, 1-inch PT port thread, the built-in magnet (-S), and the basic (no bracket) mounting configuration.
At 375 mm of stroke, the 50 mm rod provides good column strength, but any significant side load must be managed with an external linear guide or rod support. The cylinder itself is not designed to bear lateral forces; doing so will cause premature rod bearing wear, seal leakage, and potential rod bending.
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 SC250X375S FAQ
At the standard 0.5 MPa operating pressure, the push force is 24544 N and the pull force is 23562 N. At the maximum operating pressure of 0.9 MPa, push force reaches 44178 N. The theoretical maximum at 1.0 MPa is 5006 kgf.
Yes. The -S suffix indicates a built-in magnet on the piston. This allows AirTAC CMSG (reed), DMSG, or EMSG (solid-state) sensors to be clamped directly onto the tie-rod barrel for precise, contactless end-of-stroke or mid-stroke position sensing.
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