Airtac SC50 Standard Cylinder SC50X1125SLB
The AirTAC Airtac SC50 Standard Cylinder SC50X1125SLB is a genuine double-acting standard air cylinder with a Ø50mm bore and 1125mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke1125 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X1125SLB
The SC50X1125SLB is a double-acting single-rod pneumatic cylinder delivering 982 N of push force at 0.5 MPa (1767 N at the 0.9 MPa maximum operating pressure). Its 20 mm diameter piston rod and 21 mm adjustable air cushion are engineered for smooth deceleration over this 1125 mm stroke, which remains within the 1200 mm maximum standard stroke for the 50 mm bore.
This model is factory-configured with a built-in magnet (-S suffix) for direct mounting of CMSG/DMSG/EMSG sensors, and an LB foot mount (F-SC50LB) for secure axial surface installation. The body length A is 150 mm, giving an approximate extended length of 1275 mm. Ports are PT1/4 with an M16x1.5 rod thread.
Airtac SC50 Standard Cylinder SC50X1125SLB Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X1125SLB |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 1125 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 SC50X1125SLB
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×1125 | 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 SC50X1125SLB Is Used
Long-Stroke Material Transfer
The 1125 mm stroke and 982 N of force at 0.5 MPa efficiently push or pull workpieces between distant conveyor stations, with the LB foot mount providing a stable, fixed base.
Automated Panel Pressing
Delivers up to 1767 N of clamping force at 0.9 MPa for holding large panels during gluing or assembly, with sensor confirmation of full extension via the built-in magnet.
Diverting Gates on Long Chutes
Operates a diverter gate across a wide chute, using the adjustable air cushion to smoothly stop the 20 mm rod at each end of the 1125 mm travel without impact.
Is the Airtac SC50 Standard Cylinder SC50X1125SLB the Right Cylinder?
For applications needing more force, stepping up to the 63 mm bore provides 1559 N at 0.5 MPa. If a shorter, more compact unit is acceptable, the 40 mm bore delivers 628 N. At this 1125 mm stroke, ensure the rod is protected from side loads; an external linear guide or a guided cylinder variant is recommended to prevent rod bending and premature bearing wear.
To replace this cylinder, match five points: 50 mm bore, 1125 mm stroke, PT1/4 port thread, the LB foot mounting accessory (F-SC50LB), and the built-in magnet (-S) for sensor compatibility. The SC is a tie-rod design and is dimensionally shorter than an ISO 15552 cylinder, so it is not a drop-in replacement for that standard.
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 SC50X1125SLB FAQ
At the standard 0.5 MPa operating pressure, the cylinder provides 982 N of push force and 825 N of pull force. At the maximum operating pressure of 0.9 MPa, the push force increases to 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
It is not recommended. For any stroke of 300 mm or more, especially with a 20 mm rod, side loads can cause the rod to bend or damage the bearing. An external linear guide or a rodless/guided cylinder should be used to absorb any lateral forces and ensure long service life.
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