Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125TC
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125TC 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 SC250X125TC
The SC250X125TC is a large-bore double-acting tie-rod cylinder delivering a substantial push force of 24544 N at 0.5 MPa (44178 N at the 0.9 MPa maximum operating pressure). Its 125 mm stroke is paired with a heavy-duty 50 mm diameter piston rod and a 40 mm adjustable air cushion, making it well-suited for pressing, clamping, and lifting applications that demand high force in a compact stroke.
This model is configured with a centre trunnion (TC) mount, supplied together with the TCM1 bracket (order code F-SC250TC), allowing the cylinder to pivot during operation and absorb misalignment in swinging or articulating machinery. The body length A is 294 mm, and the standard PT1" port thread provides reliable air flow for large-bore actuation.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125TC Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125TC |
|---|---|
| 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 SC250X125TC
| 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 SC250X125TC Is Used
Heavy Pressing & Forming
Generates over 44 kN at 0.9 MPa for stamping, riveting, and metal-forming operations where high force is needed in a short, controlled stroke.
Articulated Machine Linkages
The centre trunnion mount allows the cylinder body to pivot, making it ideal for actuating swinging arms, tilting hoppers, and articulated levers in heavy machinery.
Industrial Lifting & Positioning
Provides stable, high-force lifting for heavy fixtures and workpieces in material handling, with the 40 mm air cushion softening the end-of-stroke impact.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125TC the Right Cylinder?
Select the SC250X125TC when your application requires forces in the 24 kN class at standard plant pressure. If your load is lighter, stepping down to the SC200 bore reduces push force to 15708 N at 0.5 MPa, saving space and air consumption. For strokes of 300 mm or longer on this bore, always evaluate side-load conditions; the 50 mm rod is robust, but external guides or a guided cylinder are recommended to protect the rod bearing from bending moments.
When replacing an existing cylinder, match five key points: 250 mm bore, 125 mm stroke, PT1" port thread, centre trunnion (TC) mounting with the TCM1 bracket, and the absence of a built-in magnet. This ensures a direct dimensional and functional swap with another AirTAC SC250 tie-rod unit.
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 SC250X125TC FAQ
At 0.5 MPa the cylinder pushes with 24544 N and pulls with 23562 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 44178 N. The theoretical maximum at 1.0 MPa is 5006 kgf, but the proof pressure is 1.5 MPa and the operating range is strictly 0.15–1.0 MPa.
No. This is a double-acting cylinder that requires continuous air pressure to maintain position. If pressure is exhausted or the directional valve is centred, the piston will drift. For load holding without live pressure, you must add an external rod brake, a mechanical lock, or a pilot-operated check valve.
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