The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X160-10 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, 160mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ40X160-10 is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, built for applications where the retract position needs fine-tuning without replacing the cylinder. With a 40 mm bore and a 16 mm piston rod, it delivers 628 N of push force at 0.5 MPa, making it a solid choice for clamping, ejecting, and light pressing tasks on assembly or packaging lines.
The rear-cap adjusting screw provides up to 10 mm of stroke-end reduction, letting technicians dial in the exact stopping point during commissioning or after tooling wear. It uses a PT1/4 port, M12x1.25 rod thread, and a 21 mm air cushion for smooth deceleration. The body length A(SCJ) is 185 mm, slightly longer than the fixed-stroke SC version to house the adjustment mechanism.
| Model | Airtac SCJ40 Standard Cylinder SCJ40X160-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 160 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. |
| ×160 | 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 setup, the 10 mm adjustment screw lets engineers precisely set the retract stop for a pick-and-place gripper, eliminating the need to shim or reposition the cylinder body.
In a woodworking clamp that cycles thousands of times, the adjustable stroke can be shortened slightly to compensate for pad wear, maintaining consistent clamping pressure without changing the tooling.
When a packaging line switches between box sizes, the SCJ40X160-10 allows a quick stroke-end adjustment to match the new product width, avoiding the downtime of a full cylinder swap.
Choose the SCJ40X160-10 when you need to tweak the stroke end position by up to 10 mm on the machine. If your force requirement grows, stepping up to a 50 mm bore (SCJ50) raises push force to 982 N at the same 0.5 MPa. For a purely fixed-stroke application where no field adjustment is needed, the standard SC40X160 is a simpler, slightly shorter alternative. When replacing an existing unit, match the 40 mm bore, 160 mm nominal stroke, 10 mm adjustment range, PT thread, and basic mounting style. For strokes of 160 mm, side-loading is generally manageable, but if the rod is unsupported or the load is offset, consider adding an external guide rail to prevent rod bending.
Adjustable-stroke checklist
At 0.5 MPa, this cylinder produces 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 pull side. Maximum push force at the 1.0 MPa operating limit is 1130 N.
Yes, if you need the adjustable stroke feature. The SCJ40X160-10 has the same bore, nominal stroke, and mounting interfaces as the SC40, but its body is slightly longer (185 mm) to accommodate the rear adjusting screw. Ensure your machine has clearance for the extra length.
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