Airtac SC50 Standard Cylinder SC50X250LB
The AirTAC Airtac SC50 Standard Cylinder SC50X250LB 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 SC50X250LB
The SC50X250LB is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, combining a 50 mm bore with a 250 mm stroke. At 0.5 MPa it generates 982 N pushing force and 825 N pulling force, rising to 1767 N push at the 0.9 MPa maximum operating pressure — a practical workhorse for medium-duty linear tasks.
This model is factory-equipped with LB axial foot mounts (F-SC50LB) for secure surface mounting on the barrel. The 20 mm diameter piston rod and 21 mm adjustable air cushion at each end deliver smooth deceleration, while the PT1/4 ports and standard TPU seals suit filtered-air systems operating from -20 to +70 °C.
Airtac SC50 Standard Cylinder SC50X250LB Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X250LB |
|---|---|
| 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 SC50X250LB
| 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 SC50X250LB Is Used
Packaging & Palletising
The 250 mm stroke and 982 N push force at 0.5 MPa suit case erectors, box flap folders, and pallet layer pushers where a foot-mounted cylinder needs a stable, bolted-down platform.
Clamping & Assembly Fixtures
Delivers controlled clamping force up to 1767 N at 0.9 MPa. The LB foot mount allows rigid mounting on machine tables for part holding, pressing, or riveting operations.
Gate & Diverter Actuation
Used on chutes, diverters, and slide gates in agricultural handling lines. The tie-rod construction and adjustable cushion handle frequent cycling with reliable deceleration.
Is the Airtac SC50 Standard Cylinder SC50X250LB the Right Cylinder?
Choose the SC50X250LB when your application needs roughly 1000 N of push force at standard shop air. If you require more force, stepping up to the 63 mm bore (SC63) raises push force to 1559 N at 0.5 MPa; for a lighter, more compact solution the 40 mm bore (SC40) provides 628 N. The 250 mm stroke is well within the 1200 mm maximum standard stroke for bore 50.
To replace an existing cylinder, match five points: 50 mm bore, 250 mm stroke, PT1/4 port thread, LB foot mounting, and confirm whether a magnet (-S) is needed. The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
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 SC50X250LB FAQ
At 0.5 MPa the cylinder produces 982 N pushing and 825 N pulling force. At 0.7 MPa it delivers 1374 N push, and at the maximum operating pressure of 0.9 MPa it reaches 1767 N push. The theoretical maximum at 1.0 MPa is 200 kgf.
No. The AirTAC SC series is a tie-rod cylinder and is shorter overall than an ISO 15552 profile cylinder, so mounting dimensions and body length differ. Only replace another AirTAC SC tie-rod cylinder of the same bore, stroke, port thread, and mounting type, or verify all mounting dimensions against the datasheet before substituting.
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