Airtac SC50 Standard Cylinder SC50X25LB
The AirTAC Airtac SC50 Standard Cylinder SC50X25LB is a genuine double-acting standard air cylinder with a Ø50mm bore and 25mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke25 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X25LB
The SC50X25LB is a 50 mm bore, 25 mm stroke double-acting tie-rod cylinder delivering 982 N of push force at 0.5 MPa. This model is pre-assembled with the LB foot mounting (F-SC50LB), allowing rigid surface installation for short-stroke clamping, pressing, or ejecting tasks.
With a 20 mm diameter piston rod and M16x1.5 rod thread, the cylinder is built for repetitive cycling on filtered air. The body length A is 150 mm, giving a compact total extended length of 175 mm. Adjustable air cushioning at both ends decelerates the piston smoothly within the 21 mm cushion zone, protecting end caps during high-speed operation.
Airtac SC50 Standard Cylinder SC50X25LB Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X25LB |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 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 SC50X25LB
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×25 | 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 SC50X25LB Is Used
Short-Stroke Clamping
The 25 mm stroke and 982 N force at 0.5 MPa make it ideal for fixture clamps and workholding jaws on CNC mills or drilling stations.
Part Ejection
Rigidly mounted via the LB feet, it delivers a quick, repeatable push to eject small parts from conveyor belts or sorting chutes.
Press-Fit Assembly
Generates up to 1767 N at 0.9 MPa for light press-fit insertion of pins, bushings, or bearings in benchtop assembly cells.
Is the Airtac SC50 Standard Cylinder SC50X25LB the Right Cylinder?
For applications needing more force, step up to the 63 mm bore SC63 series, which provides 1559 N at 0.5 MPa. If a shorter overall length is critical, the 40 mm bore SC40 offers 628 N. The LB foot mount bolts directly to a machine frame or baseplate, making this a straightforward drop-in for fixed-axis linear pushes. When replacing, match bore, stroke, PT port thread, LB mounting, and confirm magnet requirements—this code carries no magnet, so sensors are not directly supported.
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 SC50X25LB FAQ
At 0.5 MPa it delivers 982 N push and 825 N pull. At 0.7 MPa push rises to 1374 N, and at the maximum operating pressure of 0.9 MPa it reaches 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
No, this specific model code (SC50X25LB) does not include the '-S' magnet option. The piston does not carry a magnetic ring, so CMSG/DMSG/EMSG sensors cannot be used. To add sensor capability, order SC50X25LB-S instead.
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