The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X150-10 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. Ø40mm bore, 150mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ40X150-10 is a double-acting, single-rod pneumatic cylinder that lets you fine-tune the stroke end position by up to 10 mm using the integrated rear-cap screw. With a 40 mm bore, it delivers 628 N of push force at 0.5 MPa, making it a practical choice for clamping, ejecting, and light pressing tasks where the final stop point needs to be dialled in on the machine.
This model has a 150 mm nominal stroke and a 16 mm diameter piston rod, with an adjustable air cushion length of 21 mm for smooth deceleration. The body length A(SCJ) is 185 mm, and the cylinder uses a PT1/4 port. Because the stroke is set mechanically at the rear cap, you can adapt to tooling wear or small process changes without swapping the cylinder or adding external hard stops.
| Model | Airtac SCJ40 Standard Cylinder SCJ40X150-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 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 | M12×1.25 |
| 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | 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.
During machine bring-up, the 10 mm rear screw lets technicians precisely set the end-of-stroke position for a 40 mm bore actuator without iterative disassembly, speeding up the debug process.
In a repetitive clamping fixture, the adjustable stroke compensates for pad wear or workpiece thickness variation over time, maintaining consistent clamp force without reprogramming the PLC.
On a small packaging line, the SCJ40X150-10 allows operators to quickly adjust the push stroke for different box sizes by turning the rear screw, eliminating the need to stock multiple fixed-stroke cylinders.
Choose the SCJ40X150-10 when you need a 40 mm bore with a 150 mm reach and the ability to trim the stroke end by up to 10 mm during setup. If your force requirement grows, stepping up to the 50 mm bore (SCJ50 series) raises the push force to 982 N at 0.5 MPa. For applications that do not need field adjustment, the fixed-stroke SC40X150 is a simpler, cost-effective alternative.
This cylinder is a direct replacement for another AirTAC SCJ40X150-10 with PT ports and basic mounting. If your load must be guided or there is a risk of side force on the 16 mm rod, consider adding an external guide rail or switching to a guided cylinder assembly.
Adjustable-stroke checklist
At 0.5 MPa, the cylinder generates 628 N of push force and 528 N of pull force. The push force is higher because the single rod reduces the piston area on the return side. The maximum operating pressure is 1.0 MPa, yielding a push force of 1130 N.
Yes, this is a genuine AirTAC SCJ40X150-10 with a 10 mm adjustable stroke range, PT1/4 ports, and basic mounting. It is a direct dimensional and performance match for the same model code. Verify that your existing mounting style and magnet option (if any) match, as this model does not include a magnet or brackets.
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