The AirTAC Airtac SC40 Standard Cylinder SC40X400LB is a genuine double-acting standard air cylinder with a Ø40mm bore and 400mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X400LB is a double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa) from its 40 mm bore. With a 400 mm stroke and a 16 mm diameter piston rod, it suits medium-reach linear actuation tasks where a compact tie-rod body is preferred.
This configuration includes the factory-fitted LB foot mount (F-SC40LB) for rigid surface mounting. The body length A is 142 mm, giving an approximate extended length of 542 mm. The adjustable air cushion at each end decelerates the piston smoothly, protecting end caps during high-cycle operation.
| Model | Airtac SC40 Standard Cylinder SC40X400LB |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (approx.) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SC | Standard tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×400 | 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.
The 400 mm stroke pushes cartons off a conveyor line. The LB foot mount bolts directly to the frame, and 628 N of force handles mid-weight packages reliably.
Applies consistent clamping force in woodworking or light metalworking jigs. The adjustable cushion prevents hammering at the end of the 400 mm travel, preserving fixture alignment.
Opens and closes a slide gate on a hopper or chute. The tie-rod design withstands dusty environments, and the foot mount provides a stable anchor point on the gate frame.
For applications needing more force, step up to the 50 mm bore (982 N at 0.5 MPa); for a lighter, faster-moving load, the 32 mm bore offers 402 N. The 400 mm stroke on a 16 mm rod requires attention to side loading—any lateral force can bend the rod or wear the bearing. Use an external guide rail or a guided cylinder if the load is not perfectly aligned.
When replacing, match five points: 40 mm bore, 400 mm stroke, PT port thread, LB foot mounting, and the absence of a magnet. This cylinder is a direct fit for another AirTAC SC40X400LB or a tie-rod cylinder with identical port and mounting dimensions.
Quick checklist
At 0.5 MPa, the push force is 628 N and the pull force is 528 N. At the maximum operating pressure of 0.9 MPa, push force reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The AirTAC SC series is a tie-rod cylinder and is shorter than an ISO 15552 profile cylinder of the same bore and stroke. It is not dimensionally interchangeable with ISO 15552. Replace it with another AirTAC SC40 cylinder with matching stroke, port, and LB mounting.
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