The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X600-100S 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. Ø40mm bore, 600mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ40X600-100S is a 40 mm bore, double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, offering a substantial 100 mm of adjustment range from the rear cap. This model delivers a push force of 628 N at 0.5 MPa and is equipped with a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors, enabling precise end-of-stroke detection without external brackets.
With a 16 mm diameter piston rod and a PT1/4 port, the cylinder's 600 mm nominal stroke is well within the 1200 mm maximum standard stroke for this bore. The adjustable screw allows operators to fine-tune the stroke end position to accommodate commissioning variables, tooling wear, or format changes, making it a versatile choice for dynamic automation tasks.
| Model | Airtac SCJ40 Standard Cylinder SCJ40X600-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 600 mm |
| Stroke adjustment | Up to 100 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. |
| ×600 | 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.
A 600 mm stroke with a 100 mm fine-tuning range allows a single stop gate to handle multiple box sizes on a packaging line. Operators can quickly adjust the retracted position for different product widths without changing the cylinder.
The adjustable stroke end is perfect for setting the precise depth of a dispensing head over a 600 mm travel. The built-in magnet provides sensor feedback to confirm the full retract position, ensuring consistent cycle starts.
For clamping large panels, the 100 mm adjustment range compensates for seal wear or material thickness variations over time. The 628 N push force provides a secure hold, while the screw prevents over-travel that could damage the workpiece.
Choose the SCJ40X600-100S when you need to precisely dial in a long stroke end position on the fly. If the 628 N push force at 0.5 MPa is insufficient, stepping up to a 50 mm bore SCJ provides 982 N of push force. For applications where the stroke length is fixed and never needs adjustment, the standard SC series offers a more economical fixed-stroke alternative. This model is a direct replacement for any AirTAC SCJ40 cylinder with a 600 mm nominal stroke and a 100 mm adjustment range, using PT ports and a magnetic piston.
Adjustable-stroke checklist
The rear cap has an adjusting screw that limits the piston's retraction stroke end. You can shorten the effective stroke by up to 100 mm from the 600 mm nominal maximum. It is a mechanical stop for position tuning, not a force or speed regulator.
At the standard 0.5 MPa operating pressure, the push force is 628 N and the pull force is 528 N. The force is lower on the pull stroke because the 16 mm piston rod reduces the effective piston area on that side.
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