The AirTAC Airtac SC40 Standard Cylinder SC40X655S is a genuine double-acting standard air cylinder with a Ø40mm bore and 655mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X655S is a double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa and 1130 N at 0.9 MPa, making it suitable for medium-duty linear tasks. Its 16 mm diameter piston rod and 21 mm adjustable air cushion at each end provide reliable deceleration, while the total extended body length reaches approximately 797 mm.
This model includes a factory-installed magnetic piston, identified by the -S suffix, allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors on the tie-rod barrel for precise end-of-stroke or mid-stroke position feedback without external brackets.
| Model | Airtac SC40 Standard Cylinder SC40X655S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 655 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. |
| ×655 | 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 between conveyor lanes or indexing stations where mid-stroke sensor confirmation is required to prevent collisions.
Applies consistent 628 N clamping force on assembly jigs, with magnetic sensors verifying the jaw position before a cycle starts.
Pushes totes or bins off a gravity conveyor spur, using the 655 mm stroke to fully clear the lane.
When sizing, the 40 mm bore sits between the compact 32 mm (402 N push) and the more powerful 50 mm (982 N push). If your load requires force closer to 900 N at 0.5 MPa, stepping up to the 50 mm bore is recommended. For this 655 mm stroke, ensure the rod is supported against side loads; long, unsupported strokes can cause rod bearing wear or bending. Use external linear guides or a guided cylinder if lateral forces are present. For a direct replacement, match the 40 mm bore, 655 mm stroke, PT1/4 port, basic mount, and the magnetic piston feature.
Quick checklist
At 0.5 MPa (5 bar) it produces 628 N extending, and at the maximum operating pressure of 0.9 MPa it delivers 1130 N. The pull force at 0.5 MPa is 528 N due to the rod area.
Yes. The -S suffix denotes a built-in magnet around the piston, so AirTAC CMSG, DMSG, or EMSG sensors clip directly onto the tie-rod barrel slots without extra mounting hardware.
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