The AirTAC Airtac SC40 Standard Cylinder SC40X900STC is a genuine double-acting standard air cylinder with a Ø40mm bore and 900mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X900STC is a genuine AirTAC double-acting tie-rod cylinder with a 40 mm bore and a long 900 mm stroke, pre-configured with a built-in magnet and centre trunnion (TC) mount. At 0.5 MPa it delivers 628 N extending and 528 N retracting, rising to 1130 N at 0.9 MPa, making it a capable mid-bore actuator for linear movements approaching one metre.
This model uses a 16 mm diameter piston rod with M12x1.25 male threads and PT1/4 ports. The adjustable air cushion (21 mm) softens end-of-stroke impact, and the -S suffix equips the barrel with a magnet so CMSG/DMSG/EMSG sensors can clamp directly onto the tie-rod tube for non-contact position sensing. The TC suffix supplies the F-SC40TC centre trunnion bracket together with the TCM1 trunnion mount, allowing the cylinder to pivot as it strokes.
| Model | Airtac SC40 Standard Cylinder SC40X900STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 900 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. |
| ×900 | 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 900 mm stroke moves trays or components between distant conveyor stations. The centre trunnion mount lets the cylinder body pivot, accommodating slight misalignment in the transfer path.
Clamps and positions weldments with 628 N of force at standard shop air. Magnetic sensors confirm full retract and extend before the robot arc starts, ensuring safe interlocking.
Operates a long-throw diverter gate on a packaging line. The adjustable cushion decelerates the gate smoothly at each end, reducing noise and mechanical shock at high cycle rates.
Choose the SC40X900STC when you need a 40 mm bore with a 900 mm stroke, magnetic piston sensing, and a pivoting centre-trunnion mount. If your force requirement is lower, stepping down to a 32 mm bore (402 N at 0.5 MPa) saves space; for higher force, the 50 mm bore provides 982 N at 0.5 MPa. At 900 mm stroke the unsupported rod is long—side loads or high-speed cycling can cause rod bearing wear and bending. Use an external guide rail or a guided cylinder to protect the rod and bearing, and ensure the trunnion pivot axis is aligned to avoid binding.
For replacement, match five points: 40 mm bore, 900 mm stroke, PT1/4 port thread, centre trunnion (TC) mounting with F-SC40TC bracket, and the -S magnet for sensor compatibility. This cylinder is not dimensionally interchangeable with ISO 15552 profile cylinders; it is a shorter tie-rod design.
Quick checklist
At 0.5 MPa (approx. 73 psi) the cylinder produces 628 N extending and 528 N retracting. At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 1256 N. Always apply a safety factor for real loads.
No. The AirTAC SC series is a tie-rod cylinder with a shorter body length than an ISO 15552 profile cylinder, so mounting dimensions and overall length differ. It replaces another AirTAC SC tie-rod cylinder of the same bore, stroke, port thread, TC mount, and magnet option.
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