The AirTAC Airtac SC40 Standard Cylinder SC40X300N is a genuine double-acting standard air cylinder with a Ø40mm bore and 300mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X300N is a double-acting tie-rod cylinder with a 40 mm bore and 300 mm stroke, fitted with NBR (nitrile) seals for standard temperature operation. It generates a push force of 628 N at 0.5 MPa and up to 1130 N at the maximum operating pressure of 0.9 MPa, driven by a 16 mm diameter piston rod.
With a compact body length A of 142 mm, the total extended length reaches 442 mm. The adjustable air cushion (21 mm) decelerates the piston smoothly at both ends of the stroke. This model features a PT1/4 port and an M12x1.25 rod thread, making it a reliable workhorse for general industrial automation tasks.
| Model | Airtac SC40 Standard Cylinder SC40X300N |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 300 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. |
| ×300 | 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 300 mm stroke and 628 N push force at 0.5 MPa efficiently actuates diverter gates on packaging and logistics conveyors, handling moderate product weights with reliable NBR seal durability.
Provides controlled, repeatable clamping force for jigs and assembly stations. The adjustable cushioning prevents jarring stops that could disturb precisely positioned components.
Ideal for the flap-folding and forming mechanisms in case erectors, where a 300 mm reach is needed to manipulate cardboard flaps before sealing.
For higher force requirements, stepping up to the 50 mm bore SC50 series provides 982 N of push force at the same 0.5 MPa pressure. For lighter, more compact applications, the 32 mm bore delivers 402 N. When replacing an existing cylinder, match five key points: 40 mm bore, 300 mm stroke, PT port thread, basic (no bracket) mounting, and the absence of a magnet.
At a 300 mm stroke, the 16 mm rod is subject to bending moments if side loads are present. To prevent premature rod bearing wear and seal failure, use an external linear guide or a guided cylinder configuration when the load is not perfectly axial.
Quick checklist
At 0.5 MPa, the cylinder delivers 628 N extending (push) and 528 N retracting (pull). At the maximum operating pressure of 0.9 MPa, the push force increases to 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The AirTAC SC series is a tie-rod cylinder with a shorter body length than an ISO 15552 profile cylinder, so it is not dimensionally interchangeable. It is a direct match only for another AirTAC SC tie-rod cylinder with the same 40 mm bore, 300 mm stroke, PT ports, and basic mounting.
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