The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X15-10 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø63mm bore, 15mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X15-10 is a double-acting, single-rod pneumatic cylinder that puts fine stroke control at your fingertips. Its rear-cap adjusting screw lets you shorten the stroke end by up to 10 mm without removing the cylinder, making it ideal for commissioning trials or dialling in precise end positions on a 63 mm bore platform that delivers 1559 N of push force at 0.5 MPa.
Built on a rugged tie-rod body with a 20 mm piston rod and M16x1.5 rod thread, this unit shares the same force profile as the fixed-stroke SC63. The adjustable air cushion (28 mm) decelerates the piston smoothly, and the 197 mm body length A keeps the envelope compact for tight machine spaces.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X15-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 15 mm |
| Stroke adjustment | Up to 10 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. |
| ×15 | Nominal (maximum) stroke length in mm. |
| -10 | 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.
Use the 10 mm rear screw to micro-adjust the retract end position during machine commissioning, eliminating the need for shims or external hard stops.
In pressing or clamping fixtures, the adjustable stroke takes up tooling wear over time, maintaining consistent contact pressure without reprogramming the PLC.
Quickly adapt the cylinder's stroke for different product sizes on a packaging line by turning the rear screw, reducing downtime between batches.
Step up to an 80 mm bore if your load exceeds the SCJ63's 2805 N push at 0.9 MPa; the SCJ80 offers 4523 N. For a fixed, non-adjustable stroke, the standard SC63 is a simpler choice. This model is a direct replacement for another AirTAC SCJ63 with a 15 mm nominal stroke and 10 mm adjust range, PT1/4 ports, and basic mounting. If your application involves side loads, consider adding an external guide rail, as the tie-rod design is not intended to bear lateral forces.
Adjustable-stroke checklist
At 0.5 MPa, it generates 1559 N pushing and 1402 N pulling. At the maximum operating pressure of 0.9 MPa, the push force reaches 2805 N. The pull force is lower due to the area of the 20 mm rod.
Only if you need the 10 mm stroke adjustment feature. The SCJ63X15-10 has a slightly longer body (197 mm A-length) than a fixed SC63 of the same stroke. Ensure the extra length and the rear adjusting screw fit your mounting space.
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