The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X150-10S 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. Ø50mm bore, 150mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ50X150-10S is a double-acting, single-rod pneumatic cylinder with a 10 mm rear-cap adjusting screw, letting you fine-tune the stroke end position without replacing the unit. With a 50 mm bore, it delivers 982 N of push force at 0.5 MPa and 1767 N at the maximum operating pressure of 0.9 MPa, driven by a 20 mm diameter piston rod.
This model includes a built-in magnet (-S suffix), so CMSG, DMSG, or EMSG solid-state and reed sensors clamp directly onto the tie-rod barrel for reliable end-of-stroke detection. The standard PT1/4 port and M16x1.5 rod thread make it a straightforward drop-in for commissioning trials and format changeovers on packaging or assembly machinery.
| Model | Airtac SCJ50 Standard Cylinder SCJ50X150-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 150 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, 21 mm |
| Max stroke | Up to 1200 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×150 | 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 screw allows technicians to precisely dial in the retract stroke end position during initial machine setup, eliminating the need for trial-and-error with external hard stops.
Quickly adjust the cylinder's end stop to accommodate different product sizes on a packaging line, reducing changeover time between batches without swapping the actuator.
In high-cycle clamping or pressing fixtures, the adjustable stroke can be tweaked over time to compensate for pad wear, maintaining consistent clamping force without mechanical shims.
Choose this 50 mm bore SCJ when you need a mid-range force actuator with the flexibility to dial in the stroke end by up to 10 mm on the machine. If your load requires more push force, stepping up to the 63 mm bore provides 1559 N at 0.5 MPa; for a lighter, more compact solution, the 40 mm bore offers 628 N. This adjustable-stroke design is ideal for applications where the exact stop position must be set during commissioning or adjusted for tooling wear. For a direct replacement, match the 50 mm bore, 150 mm nominal stroke, 10 mm adjust range, PT port thread, and the -S magnet option. If your application involves significant side loads, consider adding an external guide rail or switching to a guided cylinder, as the 20 mm rod is not designed to support lateral forces unsupported.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. The pull force is lower because the 20 mm rod reduces the effective piston area on the return stroke. At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 200 kgf.
A screw in the rear cap acts as an internal, adjustable end stop for the piston's retract stroke. By turning the screw, you can shorten the stroke end by up to 10 mm from the nominal 150 mm. This only adjusts the mechanical stop position; it does not change the cylinder's force or speed.
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