The AirTAC Airtac SC Standard Cylinders SC63X25 is a genuine double-acting standard air cylinder with a Ø63mm bore and 25mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC63X25 is a double-acting tie-rod cylinder with a 63 mm bore and a short 25 mm stroke, built for clamping, ejecting and positioning jobs where the piston only needs to travel a small distance. At 0.5 MPa it pushes with about 1559 N and pulls with 1402 N; at the 0.9 MPa maximum operating pressure the push force reaches 2805 N.
Because the body length A is just 153 mm, the total extended length of this 25 mm version is roughly 178 mm, making it one of the most compact ways to get a 318 kgf-class force into a tight machine envelope. The rod is 20 mm diameter, ports are PT1/4, and the adjustable cushion is 28 mm long to decelerate the piston smoothly at each end of the short travel.
| Model | Airtac SC Standard Cylinders SC63X25 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 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, 28 mm |
| Max stroke | Up to 1500 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 | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (approx.) | 318 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. |
|---|---|
| 63 | Bore size in mm. |
| ×25 | 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 1559 N of push force at 0.5 MPa, the 25 mm stroke is ideal for fixture clamps and hold-downs that only need to advance and retract a few millimetres onto the workpiece.
The compact 178 mm extended length lets the SC63X25 eject finished parts or push components off a nest inside crowded machine frames where a longer cylinder will not fit.
A quick 25 mm kick is enough to divert small cartons or products at a conveyor junction, and the 28 mm adjustable cushion keeps the rapid cycling quiet and impact-free.
At this force class the SC63X25 sits between the SC50 bore (982 N push at 0.5 MPa) and the SC80 bore (2513 N at 0.5 MPa). Step down to SC50 if your load is under 900 N and you want a smaller footprint; step up to SC80 when side loads or higher duty demand more thrust and a 25 mm rod. The 25 mm stroke is a standard size, so no made-to-order lead time applies.
Replacing an existing unit? Match all five points: 63 mm bore, 25 mm stroke, PT1/4 port thread (PT, not G), the same mounting accessory, and whether a magnet (-S) was fitted. This basic-mount, TPU-seal version has no magnet, so reed or solid-state sensors cannot clamp to the barrel unless you order the -S variant.
Quick checklist
At 0.5 MPa the 63 mm bore gives approximately 1559 N on extension and 1402 N on retraction. At 0.7 MPa push force is about 2182 N, and at the 0.9 MPa maximum operating pressure it reaches 2805 N. The theoretical maximum at 1.0 MPa is 318 kgf.
Yes, if the original is an AirTAC SC or equivalent tie-rod cylinder with the same 63 mm bore, 25 mm stroke, PT1/4 port thread, the same mounting accessory and the same magnet option. Note the SC is a shorter tie-rod design, not an ISO 15552 profile cylinder, so it will not drop into an ISO 15552 footprint.
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