The AirTAC Airtac SC40 Standard Cylinder SC40X70 is a genuine double-acting standard air cylinder with a Ø40mm 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 SC40X70 is a 40 mm bore, 70 mm stroke double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa (879 N at 0.7 MPa). Its 16 mm diameter piston rod and 21 mm adjustable air cushion at each end provide reliable deceleration for moderate-speed applications.
With a compact body length of 142 mm, this tie-rod cylinder fits into space-constrained automation. The PT1/4 port and M12x1.25 rod thread are standard for the 40 mm bore, making it a straightforward choice for clamping, ejecting, and short-transfer tasks.
| Model | Airtac SC40 Standard Cylinder SC40X70 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 70 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. |
| ×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 628 N push force at 0.5 MPa is ideal for holding small components during drilling, milling, or assembly operations.
Use the 70 mm stroke to extend a stop gate on a conveyor line, reliably halting totes or cartons for processing.
Delivers a controlled 879 N at 0.7 MPa for inserting bearings, bushings, or dowel pins with consistent force.
For applications needing slightly more force, the 50 mm bore SC50 series steps up to 982 N push at 0.5 MPa. If a shorter stroke is sufficient, the 50 mm standard stroke is also available. Always match replacement cylinders on all five key points: 40 mm bore, 70 mm stroke, PT1/4 port thread, basic (no bracket) mounting, and no magnet.
This 70 mm stroke is well within the standard range, so the rod is fully supported by the front bushing. For strokes over 300 mm, consider an external guide to prevent rod bending under side load.
Quick checklist
At 0.7 MPa operating pressure, the SC40X70 produces 879 N of push force. The pull force at the same pressure is 528 N, accounting for the 16 mm rod area.
Yes, if your existing cylinder is an AirTAC SC series tie-rod type with a 40 mm bore, 70 mm stroke, PT1/4 ports, basic mounting, and no magnet. The SC is not dimensionally interchangeable with ISO 15552 profile cylinders.
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.