Airtac SC50 Standard Cylinder SC50X250H
The AirTAC Airtac SC50 Standard Cylinder SC50X250H is a genuine double-acting standard air cylinder with a Ø50mm bore and 250mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke250 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X250H
The SC50X250H is a double-acting pneumatic cylinder delivering 982 N of push force at 0.5 MPa and up to 1767 N at the maximum operating pressure of 0.9 MPa. Its 20 mm diameter piston rod and 21 mm adjustable air cushion provide reliable deceleration for mid-range automation tasks, while the 250 mm stroke suits clamping, pressing, and material-transfer operations.
This variant is fitted with Viton (FKM) seals, shifting the operating temperature range to 0 to +150 °C and making it suitable for hot environments or applications with aggressive media where standard TPU seals would degrade. The body length A is 150 mm, giving a total extended length of approximately 400 mm.
Airtac SC50 Standard Cylinder SC50X250H Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X250H |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (approx.) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SC50 Standard Cylinder SC50X250H
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | 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 SC50 Standard Cylinder SC50X250H Is Used
Hot Press & Molding
Viton seals allow the SC50X250H to operate continuously in press and molding equipment where ambient temperatures reach up to 150 °C, maintaining consistent 982 N clamping force.
High-Temperature Conveyor Divert
Diverts hot parts on a conveyor line with a 250 mm stroke. The 21 mm air cushion absorbs impact energy, protecting the cylinder and product at high cycle rates.
Autoclave & Sterilization Fixtures
Suitable for actuating fixtures inside autoclaves or sterilization chambers, where the 0-150 °C Viton seal rating and PT port threads ensure compatibility with high-temperature steam cycles.
Is the Airtac SC50 Standard Cylinder SC50X250H the Right Cylinder?
Choose the SC50X250H when you need a 50 mm bore cylinder with high-temperature resistance. If your force requirement is lower, stepping down to the SC40 (628 N at 0.5 MPa) can reduce air consumption; for higher force, the SC63 delivers 1559 N at the same pressure. Always match replacement cylinders on all five points: bore, stroke, PT port thread, basic mounting, and the Viton seal material.
At a 250 mm stroke, the 20 mm rod is well-supported for axial loads, but any side loading must be managed with external guides or a guided cylinder to prevent rod bending and premature bearing wear.
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 SC50 Standard Cylinder SC50X250H FAQ
At 0.7 MPa operating pressure, the SC50X250H produces 1374 N of push force and 825 N of pull force. The maximum push force at 0.9 MPa is 1767 N.
No. The SC series is a tie-rod cylinder with a shorter body length than an ISO 15552 profile cylinder, so it is not dimensionally interchangeable. It is a direct replacement only for another AirTAC SC50 tie-rod cylinder with the same 250 mm stroke, PT ports, and Viton seals.
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