Airtac SC50 Standard Cylinder SC50X250SFA
The AirTAC Airtac SC50 Standard Cylinder SC50X250SFA 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 SC50X250SFA
The AirTAC SC50X250SFA is a double-acting single-rod pneumatic cylinder with a 50 mm bore and 250 mm stroke, factory-assembled with a built-in magnet (-S) and a front rectangular flange (FA). At 0.5 MPa it develops 982 N extending thrust and 825 N retracting force, while at the maximum operating pressure of 0.9 MPa the push force reaches 1767 N, giving it the muscle for medium clamping, pressing, and lifting tasks.
This model's 20 mm diameter piston rod and 21 mm adjustable air cushion at each end provide smooth deceleration even under frequent cycling. The FA flange (accessory F-SC50FA) mounts rigidly on the rod-end face, keeping the cylinder body cantilevered for clean machine-frame integration. The built-in magnet lets CMSG/DMSG/EMSG sensors clamp directly onto the tie-rod barrel for reliable end-of-stroke detection without external flags.
Airtac SC50 Standard Cylinder SC50X250SFA Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X250SFA |
|---|---|
| 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 SC50X250SFA
| 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 SC50X250SFA Is Used
Part Stops & Gates
The 50 mm bore and 250 mm stroke provide ample force to raise and lower lane diverters or end stops on powered roller conveyors, with the FA flange bolting neatly to the conveyor side frame.
Clamping & Fixturing
Delivers 1767 N of clamping force at 0.9 MPa. The built-in magnet enables dual-sensor confirmation of open and closed positions, critical for automated CNC fixture safety interlocks.
Pallet Dispensers
Used in pallet magazine escapements where a 250 mm stroke separates a single pallet from a stack. The front flange mount allows the cylinder to be suspended from the dispenser frame above the stack.
Is the Airtac SC50 Standard Cylinder SC50X250SFA the Right Cylinder?
Choose the SC50X250SFA when your load needs roughly 1000 N of push force at standard plant air; if the force margin is tight, stepping up to the 63 mm bore lifts push force to 1559 N at the same 0.5 MPa. For strokes of 250 mm and above, avoid letting the rod take side loads directly — couple the load through a guide rail or linear bearing to protect the rod bearing and seals from premature wear.
When replacing an existing cylinder, match five points: 50 mm bore, 250 mm stroke, PT port thread, the FA front-flange mounting geometry, and the -S magnet for sensor compatibility. The SC is a tie-rod design and is not dimensionally interchangeable with ISO 15552 profile cylinders; it must replace another AirTAC SC or equivalent tie-rod unit with the same mounting pattern.
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 SC50X250SFA FAQ
At 0.7 MPa the extending (push) force is 1374 N, and the retracting (pull) force is 1155 N (calculated from the datasheet pull ratio). The maximum operating push force at 0.9 MPa is 1767 N.
No. The SC series is a tie-rod cylinder with a shorter overall body length than an ISO 15552 profile cylinder. The FA front-flange bolt pattern and body dimensions are specific to AirTAC SC tie-rod cylinders. Direct replacement requires another SC50 with matching bore, stroke, FA mount, and magnet option.
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