The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X160-50 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø63mm bore, 160mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X160-50 delivers a nominal 160 mm stroke with a rear-cap adjusting screw that lets you shorten the stroke end by up to 50 mm without removing the cylinder. At 0.5 MPa it generates 1559 N of push force and 1402 N on the pull stroke, suiting medium-force positioning and clamping tasks where the exact stop point needs fine-tuning during commissioning or format changes.
This 63 mm bore double-acting cylinder uses a 20 mm piston rod, PT1/4 ports, and a 28 mm air cushion for smooth deceleration. The tie-rod body length A(SCJ) is 197 mm, making it a compact choice when compared to the fixed-stroke SC series. Its standard TPU seals and PT threads keep it ready for filtered-air service from -20 to +70 °C.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X160-50 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 160 mm |
| Stroke adjustment | Up to 50 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| 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 SCJ (adjustable-stroke) datasheet. The rear adjusting screw sets the stroke end position; force is the same as the equivalent single-rod SC bore. 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 (@1.0 MPa) | 318 kgf | |
SCJ is single-rod, so force matches the equivalent SC bore: push uses the full bore area, pull subtracts the rod area. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×160 | Nominal (maximum) stroke length in mm. |
| -50 | Adjustable-stroke range in mm (options 10/20/30/40/50/75/100). |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod, fixed stroke), SCD (double rod), SCT (multi-position). SCJ mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Dial in the exact end-stop position during machine setup. The 50 mm adjustment range lets technicians compensate for stack-up tolerances without swapping the cylinder or adding external hard stops.
Quickly adapt a pusher or diverter stroke when the production line switches between product sizes. A few turns of the rear screw reset the stroke end, minimising downtime.
Set a precise clamping depth for workpieces of varying thickness. The adjustable stroke prevents over-travel that could mark parts, while the 1402 N pull force securely retracts the clamp.
Step up to the 80 mm bore SCJ when you need more than the 1559 N push this 63 mm unit offers at 0.5 MPa—the SCJ80 provides 2513 N. If your application does not require field stroke adjustment, the fixed-stroke SC63 is a simpler, lower-cost alternative. For a direct replacement, match the 63 mm bore, 160 mm nominal stroke, 50 mm adjust range, PT1/4 ports, basic mounting, and no magnet.
At a 160 mm stroke, side-loading is generally manageable, but if the rod sees off-axis forces, consider an external guide rail or switch to a guided cylinder to protect the rod bearing and seal from premature wear.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, the push force is 1559 N and the pull force is 1402 N. At the maximum operating pressure of 0.9 MPa, push force reaches 2805 N. The pull force is lower because the rod reduces the effective piston area on the return stroke.
Only if you need the adjustable stroke feature. The SCJ body is slightly longer to house the adjusting screw. You must match the 63 mm bore, PT1/4 ports, and mounting style. If you simply need a 160 mm fixed stroke, the standard SC63 is the direct replacement.
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