The AirTAC Airtac SC40 Standard Cylinder SC40X870S 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 pneumatic cylinder delivering 628 N of push force at 0.5 MPa (879 N at 0.7 MPa) from its 40 mm bore. With an 870 mm stroke, it suits medium-reach linear tasks where a compact tie-rod body is preferred—the body length A is 142 mm, giving a total extended length of approximately 1012 mm.
This model uses a 16 mm diameter piston rod with M12×1.25 male threads and PT1/4 ports. The adjustable air cushion (21 mm length) decelerates the piston near stroke end to reduce impact. Operating pressure is 0.15–1.0 MPa with TPU/NBR seals rated for -20 to +70 °C.
| Model | Airtac SC40 Standard Cylinder SC40X870S |
|---|---|
| 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.
The 870 mm stroke pushes or diverts cartons across a wide conveyor gap. The 16 mm rod handles moderate side loads when the tooling is externally guided.
Advances bar stock or panels into a cutting zone. The adjustable cushion protects the saw fixture from shock at the end of the 870 mm travel.
Positions a layer sheet or slip sheet across a pallet build station. The 628 N push at 0.5 MPa is sufficient for lightweight sheet handling.
Choose the SC40 bore when 628 N at 0.5 MPa covers your load with a safety margin. If you need more force, step up to the SC50 bore (982 N at 0.5 MPa); for a lighter, more compact actuator, the SC32 offers 402 N. At 870 mm stroke, the rod is long relative to its 16 mm diameter—ensure the load is guided externally or use a guided cylinder to prevent rod bending and premature bearing wear.
For drop-in replacement, match five points: 40 mm bore, 870 mm stroke, PT1/4 ports, basic (no bracket) mounting, and no magnet. This SC tie-rod cylinder is shorter than an ISO 15552 unit and is not dimensionally interchangeable with ISO 15552 profiles.
Quick checklist
At 0.5 MPa the push force is 628 N and pull force is 528 N. At 0.7 MPa push reaches 879 N, and at the maximum operating pressure of 0.9 MPa it delivers 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The SC40X870 is a double-acting cylinder and will drift or drop if pressure is exhausted or the directional valve is centred. For load holding without live pressure, add a pilot-operated check valve or an external rod brake.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.