
The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X60-30 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø40mm bore, 60mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ40X60-30 is a double-acting, single-rod pneumatic cylinder offering a nominal 60 mm stroke with a 30 mm rear-end adjustment range. This allows machine builders to fine-tune the stroke end position on the fly without swapping the cylinder. It delivers 628 N of push force at 0.5 MPa and 1130 N at 0.9 MPa, making it a strong mid-range actuator.
With a 16 mm diameter piston rod and PT1/4 ports, this tie-rod cylinder provides reliable linear motion for applications requiring precise end-stop calibration. The adjustable screw mechanism shortens the stroke end by up to 30 mm, ideal for commissioning adjustments or accommodating part tolerance variations in automated systems.
| Model | Airtac SCJ40 Standard Cylinder SCJ40X60-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 60 mm |
| Stroke adjustment | Up to 30 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. |
| ×60 | Nominal (maximum) stroke length in mm. |
| -30 | 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.
Fine-tune the stroke end during initial machine setup to dial in precise positioning for pick-and-place or clamping operations without reprogramming the controller.
Adjust the stroke end to compensate for mechanical wear on tooling or contact surfaces over time, maintaining consistent part quality without replacing the cylinder.
Quickly adapt the cylinder's end position for different product sizes on a packaging or sorting line, reducing downtime between production runs.
Step up to the SCJ50 bore if your application demands more than 982 N of push force at 0.5 MPa. If your motion profile is fixed and never requires field adjustment, the standard SC40 fixed-stroke cylinder offers a simpler, more compact solution. For a direct replacement, match the SCJ40 bore, 60 mm nominal stroke, 30 mm adjust range, PT port thread, and basic mounting configuration. If side-loading is a concern, consider adding an external guide rail, as the tie-rod design is not intended to support high radial forces.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 628 N and the pull force is 528 N. The maximum push force at the 0.9 MPa operating limit is 1130 N. The pull force is lower due to the area of the 16 mm rod.
No. As a standard double-acting cylinder, it will drift or drop if air pressure is exhausted. If load holding is required in a power-off state, you must add an external pilot-operated check valve or a mechanical rod lock.
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