The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X15-10S 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 SCJ63X15-10S is a double-acting, single-rod pneumatic cylinder with a rear adjusting screw that lets you fine-tune the stroke end by up to 10 mm without swapping the unit. With a 63 mm bore and 20 mm rod, it delivers a robust 1559 N of push force at 0.5 MPa, making it a solid choice for compact stations where the final stop position must be dialled in precisely during commissioning or changeover.
This model includes a built-in magnet (-S suffix), so you can clamp CMSG/DMSG/EMSG reed or solid-state sensors directly onto the tie-rod barrel for reliable end-of-stroke sensing. The body length A(SCJ) is 197 mm, and the adjustable air cushion decelerates the piston smoothly at both ends. It uses a PT1/4 port and an M16x1.5 rod thread, operating on filtered air from 0.15 to 1.0 MPa.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X15-10S |
|---|---|
| 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.
The 10 mm rear adjustment screw lets technicians fine-tune the final stop position of a 63 mm bore actuator on a new assembly fixture without machining shims or moving hard stops, speeding up line commissioning.
In clamping or pressing operations, the stroke end can be gradually extended by up to 10 mm to compensate for pad or tooling wear, maintaining consistent clamp force without immediate part replacement.
On a packaging machine, operators can quickly adjust the stroke end by 10 mm to accommodate a different box height, reducing changeover time between product runs.
Choose the SCJ63X15-10S when you need a 63 mm bore force class (1559 N push at 0.5 MPa) and field-adjustable stroke end. If 1559 N is more than your load requires, stepping down to a 50 mm bore (982 N push at 0.5 MPa) can reduce air consumption and physical size. For applications that do not need the rear adjustment screw, the fixed-stroke SC63 series offers the same force in a slightly shorter body.
A direct replacement must match the 63 mm bore, 15 mm nominal stroke, and the 10 mm adjustable range. This model has a built-in magnet and PT ports; an equivalent replacement should carry the -S suffix and use PT threads. If your mounting requires a pivot, the SCJ63 can be ordered with a TC centre trunnion (F-SC63TC) instead of the basic configuration.
Adjustable-stroke checklist
At the standard operating pressure of 0.5 MPa, the push force is 1559 N and the pull force is 1402 N. Because it is a single-rod cylinder, the push force is higher than the pull force due to the rod area. The maximum push force at 0.9 MPa is 2805 N.
The rear cap has an adjusting screw that acts as an internal, movable end-stop for the piston. By turning the screw, you can shorten the stroke end by up to 10 mm from the nominal 15 mm maximum. This only adjusts the stroke end position; it does not change the cylinder's force output or speed.
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