The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X60-40S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 40 mm range without swapping the cylinder. Ø40mm bore, 60mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ40X60-40S is a double-acting, single-rod pneumatic cylinder that puts stroke-end fine-tuning at your fingertips. With a 40 mm bore and a 40 mm rear-screw adjustment range, it delivers 628 N of push force at 0.5 MPa, letting commissioning engineers dial in the exact stop position without swapping the cylinder or adding external hard stops.
This model includes a built-in magnet, so standard CMSG/DMSG/EMSG sensors clamp directly onto the tie-rod barrel for reliable end-of-stroke detection. The 16 mm diameter piston rod, PT1/4 ports, and a 21 mm air cushion ensure smooth deceleration, while the 185 mm body length keeps the footprint compact for machinery with tight space constraints.
| Model | Airtac SCJ40 Standard Cylinder SCJ40X60-40S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 60 mm |
| Stroke adjustment | Up to 40 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. |
| -40 | 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.
Technicians can fine-tune the cylinder's end stop on a new assembly line in seconds, compensating for minor fixture variations without needing to re-machine brackets or order different stroke lengths.
On a packaging line switching between box sizes, the 40 mm adjustment screw lets operators quickly reset the pusher stroke, minimizing downtime between production runs.
In clamping or pressing fixtures, the adjustable stroke can be gradually extended to take up slack from pad wear, maintaining consistent clamping force without immediate pad replacement.
Choose the SCJ40X60-40S when your application needs a stroke that can be shortened by up to 40 mm from the nominal 60 mm maximum. If you require more force, stepping up to the 50 mm bore provides 982 N of push at 0.5 MPa. For applications where the stroke is permanently fixed, the standard SC series offers a simpler, cost-effective alternative. This cylinder is a direct replacement for any AirTAC SCJ adjustable-stroke unit with a 40 mm bore, 60 mm nominal stroke, 40 mm adjust range, PT ports, and a magnetic piston.
Adjustable-stroke checklist
At the standard operating pressure of 0.5 MPa, it generates 628 N of push force and 528 N of pull force. The maximum push force at 0.9 MPa is 1130 N. The pull force is lower because the 16 mm piston rod reduces the effective piston area on the return stroke.
Not directly. The SCJ40X60-40S has a maximum nominal stroke of 60 mm, which can be adjusted down to 20 mm. It cannot extend to 100 mm. You must match the bore, maximum stroke, and port thread. For a 100 mm stroke with adjustability, you would need an SCJ40X100-{adj} model.
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