Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X90
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X90 is a genuine double-acting standard air cylinder with a Ø250mm bore and 90mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ250 mm
- Stroke90 mm
- Port sizePT1"
- Acting typeDouble acting
- Rod threadM42×2
- CushionAdjustable, 40 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X90
The SC250X90 is a large-bore double-acting tie-rod cylinder delivering 24544 N of push force at 0.5 MPa, rising to 44178 N at the maximum operating pressure of 0.9 MPa. With a 90 mm stroke and a 50 mm diameter piston rod, this model is built for heavy-duty linear applications where a compact extended length is needed.
It features a 294 mm body length (dimension A) and an adjustable pneumatic cushion of 40 mm at each end to decelerate high-inertia loads smoothly. The standard PT1" port and M42x2 rod thread ensure robust air flow and secure tooling attachment. This cylinder belongs to the ISO 6430 class for 125-250 mm bore sizes.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X90 Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X90 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 90 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 SC250X90
| SC | Standard tie-rod cylinder series. |
|---|---|
| 250 | Bore size in mm. |
| ×90 | 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 SC250X90 Is Used
Heavy Press Tool Actuation
Provides up to 44178 N of force at 0.9 MPa for clamping, pressing, and punching tools in metal fabrication cells, where the short 90 mm stroke offers a rigid, compact power stroke.
Mould Core Pulling
The 50 mm diameter rod and 24544 N push force at 0.5 MPa are well-suited for pulling large cores in injection moulds, with the 40 mm cushion absorbing the shock of heavy sliding sections.
Dock Leveler Lifting
Delivers the high thrust needed to raise heavy dock leveler platforms. The tie-rod construction and adjustable cushioning provide reliable, repetitive lifting in logistics hubs.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X90 the Right Cylinder?
For higher force requirements, this 250 mm bore model is the largest in the SC series, offering 24544 N at 0.5 MPa. If your application can accept a lower force, stepping down to a 200 mm bore reduces the push force to 15708 N at the same pressure. For strokes of 300 mm or more, evaluate side-load conditions carefully—long, unsupported rods are susceptible to bending under lateral forces; use an external guide or a guided cylinder to protect the rod bearing and seals.
To ensure a correct replacement, match these five points: 250 mm bore, 90 mm stroke, PT1" port thread, basic mounting (no accessory bracket), and the absence of a built-in magnet. This cylinder is a direct substitute for another AirTAC SC250X90 tie-rod unit with the same configuration.
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 SC250X90 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, the push force increases to 44178 N. The theoretical maximum force at 1.0 MPa is 5006 kgf.
No. The SC250X90 is a double-acting cylinder and does not lock or hold its position when air pressure is exhausted or the directional valve is centered. The adjustable air cushion only decelerates the piston at the end of the stroke. If load holding is required, you must add an external rod brake, a mechanical lock, or a pilot-operated check valve.
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