The AirTAC Airtac SC40 Standard Cylinder SC40X635L is a genuine double-acting standard air cylinder with a Ø40mm bore and 635mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X635L is a double-acting single-rod pneumatic cylinder with a 40 mm bore and a non-standard 635 mm stroke, built for applications needing extended reach. At 0.5 MPa it provides 628 N of push force and 528 N on the pull stroke, making it suitable for medium-duty linear tasks.
This model uses a 16 mm diameter piston rod with an M12x1.25 thread and a 21 mm adjustable air cushion at each end. The body length A is 142 mm, giving an extended length of approximately 777 mm. It comes with TPU seals for a standard temperature range of -20 to +70 °C and PT1/4 ports.
| Model | Airtac SC40 Standard Cylinder SC40X635L |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 635 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. |
| ×635 | 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.
Pushes or pulls components along a 635 mm travel path in automated conveyor systems, ideal for indexing or diverting medium-weight items.
Operates guards, clamps, or tool changers on CNC machines where a long, consistent stroke is required for clearance.
Drives a pusher plate to collate or reject packages on a packaging line, using the full 635 mm stroke for deep case packing.
For higher force, step up to the SC50 bore which delivers 982 N push at 0.5 MPa; for a lighter, more compact option, the SC32 provides 402 N. Because the 635 mm stroke exceeds the standard range for this bore, this is a made-to-order item. When replacing, match bore, stroke, PT port thread, and the basic mounting configuration. For strokes over 300 mm, ensure the rod is externally guided or supported to prevent bending under side loads.
Quick checklist
At 0.7 MPa operating pressure, the SC40 bore generates 879 N of push force and 739 N of pull force, based on the official AirTAC thrust table.
A 600 mm stroke is a standard option and may be available faster. However, if your application requires the exact 635 mm travel, this non-standard stroke is necessary. Always ensure the rod is supported externally for this extended length.
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.