The AirTAC Airtac SC40 Standard Cylinder SC40X650SH is a genuine double-acting standard air cylinder with a Ø40mm bore and 650mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X650SH is a double-acting single-rod pneumatic cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). Its 40 mm bore and 650 mm stroke suit medium-duty linear actuation where heat resistance is critical, thanks to the factory-fitted Viton (FKM) seals that shift the operating temperature window to 0–150 °C.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the tie-rod barrel for non-contact position sensing. The 16 mm diameter piston rod with M12x1.25 male thread provides solid load attachment, while the 21 mm adjustable air cushion at each end decelerates the piston smoothly. Total extended body length is approximately 792 mm (body length A = 142 mm + 650 mm stroke).
| Model | Airtac SC40 Standard Cylinder SC40X650SH |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 650 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. |
| ×650 | 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.
With Viton seals rated for 0–150 °C, this cylinder operates reliably in ovens, autoclaves, and foundry equipment where standard seals would degrade, providing 628 N of push force at 0.5 MPa.
The built-in magnet enables direct mounting of CMSG/DMSG sensors to confirm clamp/unclamp status in real time, ideal for automated welding fixtures and assembly jigs requiring end-of-stroke verification.
Use the 650 mm stroke to push hot formed parts off a conveyor or press. The 21 mm adjustable air cushion absorbs impact energy, protecting the cylinder and tooling during high-speed ejection cycles.
Choose the SC40X650SH when your application needs a 40 mm bore cylinder with a 650 mm stroke and the ability to operate in elevated-temperature environments up to 150 °C. If you need more force, the SC50 series provides 982 N push at 0.5 MPa; for a more compact lower-force option, the SC32 delivers 402 N. The built-in magnet saves time on sensor mounting—no external brackets are needed.
For a 650 mm stroke, be aware that the 16 mm rod can experience bending under significant side loads. If the load is not guided externally, consider adding a linear guide rail or switching to a guided cylinder to protect the rod bearing and seals from premature wear. When replacing an existing unit, match five points: 40 mm bore, 650 mm stroke, PT1/4 port thread, the built-in magnet (-S), and the Viton seal material (H).
Quick checklist
At 0.7 MPa operating pressure, the SC40X650SH produces 879 N of push force on extension and 528 N of pull force on retraction. The maximum push force at 0.9 MPa is 1130 N.
No. The AirTAC SC series is a tie-rod cylinder with a shorter overall body length than an ISO 15552 profile cylinder, so dimensional interchangeability is not guaranteed. It is a direct match only for another AirTAC SC tie-rod cylinder with the same 40 mm bore, 650 mm stroke, PT1/4 ports, built-in magnet, and Viton seals.
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