The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X150-40S 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. Ø80mm bore, 150mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X150-40S puts 2513 N of push force at 0.5 MPa into a field-adjustable stroke package, letting you fine-tune the stroke end by up to 40 mm with the rear-cap screw. Its 25 mm rod and PT3/8 ports handle mid-range pneumatic tasks where commissioning tweaks or format changes are routine.
This model includes a built-in magnet, so CMSG/DMSG/EMSG sensors clamp directly onto the 80 mm tie-rod barrel for clean, bolt-on position feedback. The 28 mm air cushion decelerates the piston quietly, and the body length A(SCJ) is 239 mm, keeping it compact for machines that need repeatable end-stop adjustment without swapping cylinders.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X150-40S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 150 mm |
| Stroke adjustment | Up to 40 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max stroke | Up to 1500 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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. |
|---|---|
| 80 | Bore size in mm. |
| ×150 | 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.
Dial in the exact stroke end during machine bring-up without cutting rods or adding hard stops, saving hours of mechanical rework on a packaging line.
Adjust the stroke by up to 40 mm when switching between box sizes on a case packer, avoiding a cylinder swap and keeping the line running.
Take up mechanical slack in a clamp or press tool over time by turning the rear screw, restoring full engagement without replacing the actuator.
Choose the SCJ80 bore when your load needs roughly 2513 N push at standard line pressure—if you can drop to 1559 N, the smaller SCJ63 saves space and weight. For a fixed stroke, the standard SC80 removes the adjustment screw and shortens the body slightly. This SCJ80X150-40S is a direct replacement for another AirTAC SCJ80 with 150 mm nominal stroke, 40 mm adjust, PT ports, and a magnet; match the -S suffix to retain sensor compatibility. At 150 mm stroke, rod bending is rarely a concern if the load is guided, but for offset loads add an external guide rail.
Adjustable-stroke checklist
At 0.5 MPa the push force is 2513 N and the pull force is 2268 N (single rod, so push is greater). At the maximum operating pressure of 0.9 MPa, push reaches 4523 N. The 40 mm stroke adjustment does not change the force output.
Yes, if you need the 40 mm field-adjustable stroke end. The SCJ80X150-40S shares the same bore, rod, and port dimensions as an SC80 but adds the rear adjusting screw. Ensure your machine has clearance for the slightly longer SCJ body (239 mm) and that you order the -S magnet version if you currently use barrel-mounted sensors.
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