The AirTAC Airtac SC50 Standard Cylinder SC50X70 is a genuine double-acting standard air cylinder with a Ø50mm bore and 70mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC50X70 is a double-acting tie-rod cylinder from AirTAC’s SC series, sized for moderate push forces in a compact 70 mm stroke. At 0.5 MPa it provides 982 N extending and 825 N retracting, while at the 0.9 MPa maximum operating pressure it reaches 1767 N of push force.
This model uses a 20 mm diameter piston rod with an M16×1.5 male thread and PT1/4 ports. The adjustable air cushion at each end (21 mm cushion length) decelerates the piston smoothly, and the body length A is 150 mm, giving a total extended length of approximately 220 mm. Standard TPU seals suit ambient temperatures from -20 to +70 °C.
| Model | Airtac SC50 Standard Cylinder SC50X70 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 70 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (approx.) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×70 | 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 70 mm stroke and 982 N push force at 0.5 MPa reliably actuate a diverter flap on a packaging conveyor, redirecting cartons between lanes with crisp, repeatable motion.
Used in a machining centre to clamp small castings, the SC50X70 applies steady holding force without over-deflecting the part, aided by the adjustable cushion to reduce impact at clamp closure.
Delivers a controlled 1767 N push at 0.9 MPa for light press-fit insertion of bushings or pins, where the 70 mm stroke provides enough travel for the insertion depth plus a short approach.
Choose the SC50X70 when your application needs roughly 1000 N of push force at typical shop air. If you require more force, stepping up to the 63 mm bore (SC63) raises push force to 1559 N at 0.5 MPa; if space or force requirements are lower, the 40 mm bore (SC40) delivers 628 N at the same pressure.
For replacement, match five points: 50 mm bore, 70 mm stroke, PT1/4 port thread, basic (no bracket) mounting, and no magnet. The SC is a tie-rod cylinder and is shorter than an ISO 15552 profile, so it only directly replaces another AirTAC SC50 of identical configuration.
Quick checklist
At 0.5 MPa the cylinder produces 982 N extending (push) and 825 N retracting (pull). At the maximum operating pressure of 0.9 MPa, push force reaches 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
This basic SC50X70 code does not include the -S magnet option, so the piston does not carry a magnet and CMSG/DMSG/EMSG sensors cannot be used. If you need position sensing, order model SC50X70-S, which adds a built-in magnet for barrel-mounted sensors.
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