The AirTAC Airtac SC40 Standard Cylinder SC40X870 is a genuine double-acting standard air cylinder with a Ø40mm bore and 870mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X870 is a double-acting tie-rod cylinder delivering a push force of 628 N at 0.5 MPa and up to 1130 N at 0.9 MPa. With an 870 mm stroke, it handles long-reach material transfer and actuation where a compact retracted length is still needed. The 40 mm bore houses a 16 mm diameter piston rod with M12x1.25 male threads, providing good column strength for extended positions.
This cylinder uses a 21 mm air cushion at each end to decelerate the piston smoothly, reducing end-of-stroke shock. The body length A is 142 mm, making the total extended length approximately 1012 mm. It operates on filtered air from 0.15 to 1.0 MPa across a temperature range of -20 to +70 °C with its standard TPU seals.
| Model | Airtac SC40 Standard Cylinder SC40X870 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 870 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. |
| ×870 | 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.
Moves components 870 mm between conveyor lines or workstations in packaging and assembly systems, using its 628 N push force at standard shop air pressure.
Extends a dispensing head across a wide panel in furniture or automotive trim production, providing consistent, controlled linear motion for adhesive or sealant beads.
Operates a diverter gate or pushes totes off a main line in logistics hubs, where the 870 mm stroke reaches fully across the conveyor width.
Select the SC40 bore when your application needs roughly 600-1100 N of push force. If you require more force, step up to the SC50 (982 N push at 0.5 MPa); for a lighter, more compact solution, the SC32 delivers 402 N. This 870 mm stroke is within the 1200 mm maximum standard stroke for the 40 mm bore, so it is a standard catalog item.
For strokes of this length, always check for side loading. The 16 mm rod can deflect under lateral forces, causing premature seal wear or rod bending. If your load is not guided externally, consider adding an external guide rail or switching to a guided cylinder assembly. When replacing an existing unit, match five points: 40 mm bore, 870 mm stroke, PT1/4 port thread, basic mounting (no bracket), and no magnet.
Quick checklist
At 0.5 MPa (5 bar), the push force is 628 N and the pull force is 528 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The AirTAC SC series is a tie-rod cylinder and is physically shorter than an ISO 15552 profile cylinder of the same bore and stroke. It is not dimensionally interchangeable. Only replace another AirTAC SC tie-rod cylinder with matching bore, stroke, port thread (PT), and mounting type.
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