The AirTAC SC40 Standard Cylinder SC40X8 is a genuine double-acting standard air cylinder with a Ø40mm bore and 8mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X8 is a compact-stroke double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). Its 40 mm bore and 16 mm diameter piston rod provide a rigid, fast-acting linear drive for short-throw clamping, ejecting, and stopping tasks.
With an 8 mm stroke, the total extended body length is only 150 mm (142 mm body + 8 mm stroke), making it ideal where space is tight. The cylinder features adjustable air cushioning (21 mm cushion length) to soften end-of-stroke impact, PT1/4 ports, and operates on filtered air from 0.15 to 1.0 MPa.
| Model | Airtac SC40 Standard Cylinder SC40X8 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 8 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. |
| ×8 | 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.
Delivers 628 N at 0.5 MPa for compact fixture clamping, holding workpieces securely during machining or assembly with an 8 mm stroke.
Fast 8 mm linear push ejects small plastic or metal parts from moulds or conveyor stops, leveraging the 16 mm rod's rigidity.
Operates a short-throw diverter gate on a packaging line, with adjustable cushioning preventing bounce at the end of the 8 mm travel.
For applications needing more force, the SC50 (982 N at 0.5 MPa) steps up the bore while keeping the same PT1/4 port size. If a shorter body is critical, verify the minimum stroke against your fixture. For replacement, match bore (40 mm), stroke (8 mm), PT1/4 ports, basic mounting, and confirm the magnet option (-S suffix) if sensors are used.
Quick checklist
At 0.7 MPa the SC40X8 produces 879 N of push force and 528 N of pull force (retraction). The maximum operating push force at 0.9 MPa is 1130 N.
No. The SC series is a tie-rod cylinder with a shorter overall body length than an ISO 15552 cylinder and is not dimensionally interchangeable. Replace only with another AirTAC SC40 tie-rod cylinder of matching bore, stroke, and port thread.
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