The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X150-100S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø63mm bore, 150mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X150-100S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke, offering a nominal 150 mm maximum stroke that can be shortened by up to 100 mm via the rear-cap adjusting screw. This 63 mm bore model delivers a push force of 1559 N at 0.5 MPa and 2805 N at the maximum operating pressure of 0.9 MPa, using a 20 mm diameter piston rod and PT1/4 ports.
Its tie-rod construction includes an adjustable air cushion for smooth deceleration, and the integrated magnet allows direct mounting of CMSG/DMSG/EMSG sensors for reliable end-of-stroke detection. The body length A(SCJ) is 197 mm, making it a compact solution for tasks requiring frequent stroke-end fine-tuning during commissioning or format changes.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X150-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 150 mm |
| Stroke adjustment | Up to 100 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. |
| ×150 | Nominal (maximum) stroke length in mm. |
| -100 | 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.
During machine setup, the 100 mm adjustment range allows engineers to precisely dial in the actuator's end stop without fabricating mechanical shims, saving hours of trial and error.
On packaging lines handling multiple product sizes, the adjustable stroke lets operators quickly reset the pusher stroke length between batches, minimizing downtime during format switches.
In clamping or pressing fixtures, the screw can be advanced over time to take up mechanical wear in tooling or seals, maintaining consistent clamp force without replacing the cylinder.
Choose the SCJ63X150-100S when you need to precisely dial in the stroke end position on a machine without swapping the cylinder. For higher force requirements, stepping up to an 80 mm bore provides 2513 N of push force at 0.5 MPa. If a fixed stroke is sufficient, the standard SC63X150 eliminates the adjusting mechanism. This model is a direct replacement for another AirTAC SCJ63 cylinder with a 150 mm nominal stroke and 100 mm adjustment range, using PT ports and a basic mount. For strokes of 300 mm or more, evaluate side-loading on the 20 mm rod and consider adding an external guide rail to prevent bending.
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. The maximum push force at 0.9 MPa is 2805 N. Being a single-rod cylinder, the push force is greater than the pull force due to the rod area on the return side.
You can, if you need the adjustable stroke feature. The SCJ63X150-100S has the same bore, port size (PT1/4), and rod diameter (20 mm) as the SC63, but the body is slightly longer to house the adjusting screw. Ensure the 100 mm adjustment range suits your application, and note that the mounting accessories are from the SCJ subset (Basic, FA, LB, TC, TCM1).
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