The AirTAC Airtac SC Standard Cylinders SC63X900 is a genuine double-acting standard air cylinder with a Ø63mm bore and 900mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC63X900 is a double-acting tie-rod cylinder with a 63 mm bore and a long 900 mm stroke, sitting comfortably within the 1500 mm maximum standard stroke for this bore. At 0.5 MPa it delivers about 1559 N on extension and 1402 N on retraction, rising to 2182 N at 0.7 MPa and 2805 N at the 0.9 MPa peak operating pressure. The piston rod is 20 mm diameter with an M16x1.5 male thread, and the adjustable cushion is 28 mm long on each end to soften deceleration over this long travel.
With a 900 mm stroke the extended length is roughly 1053 mm (body length A of 153 mm plus stroke), so mounting and alignment deserve care. Ports are PT1/4, seals are standard TPU rated for -20 to +70 C, and the cylinder runs on filtered air at 0.15-1.0 MPa with speeds of 30-800 mm/s. This unit is supplied as a basic cylinder without mounting accessories.
| Model | Airtac SC Standard Cylinders SC63X900 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke | 900 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. |
| ×900 | 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 2805 N available at 0.9 MPa, the SC63X900 lifts or clamps over 900 mm of travel in jigs, gate fixtures and vertical lifting stations where moderate force and long reach are both required.
The 900 mm stroke suits push-off and divert arms that must sweep across wide conveyor lanes; keep the pusher on an external guide so the long rod sees no side load.
Drives long-travel slides, doors and indexing gates at 30-800 mm/s, with the 28 mm adjustable cushions easing the piston into its end positions on every cycle.
At 63 mm bore you get roughly 1559 N at 0.5 MPa. If your load needs less, the SC50 offers about 982 N at the same pressure; if you need more headroom, step up to the SC80 for around 2513 N. Because the 900 mm stroke leaves a long, unsupported 20 mm rod, avoid side loads: use an external guide or a guided cylinder whenever the load is not carried along the rod axis, and align the rod coupling carefully to prevent rod-bearing wear.
Replacing an existing unit? Match all five points: 63 mm bore, 900 mm stroke, PT1/4 port thread (or G if the old cylinder used BSP parallel), the same mounting accessory, and the same magnet option (this model has none - add -S if sensors are needed). Only an AirTAC SC / tie-rod cylinder with the same bore, stroke, port, mounting and magnet is a direct swap; the SC is not dimensionally interchangeable with ISO 15552 profile cylinders.
Quick checklist
At 0.5 MPa the 63 mm bore gives about 1559 N extending and 1402 N retracting. At 0.7 MPa expect roughly 2182 N, and at the 0.9 MPa maximum operating pressure about 2805 N. The theoretical maximum is 318 kgf at 1.0 MPa.
Only if the load is purely axial and well aligned. A 900 mm stroke on a 20 mm rod leaves a long unsupported length that will bend under side load, so use an external guide rail or a guided cylinder for offset or overhanging loads, and check rod alignment at both end positions.
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