The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X40-10S 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. Ø80mm bore, 40mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The AirTAC SCJ80X40-10S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end. Its rear-cap adjusting screw provides up to 10 mm of fine-tuning, letting you dial in the exact stroke end position during commissioning or format changes without swapping the cylinder. This model delivers 2513 N of push force at 0.5 MPa and 4523 N at 0.9 MPa, making it a robust mid-range actuator.
This SCJ80 variant features a built-in magnet (suffix -S), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the tie-rod barrel for reliable end-of-stroke detection. The 25 mm piston rod and PT3/8 ports ensure solid flow and mechanical strength, while the 28 mm air cushion decelerates the piston quietly at stroke end. The body length A(SCJ) is 239 mm, slightly longer than a fixed-stroke SC80 to accommodate the adjusting mechanism.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X40-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 40 mm |
| Stroke adjustment | Up to 10 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. |
| ×40 | 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.
The 10 mm adjust range allows technicians to precisely set the stroke end on a new machine without fabricating shims or external hard stops, speeding up initial system bring-up.
On a packaging line, quickly adjust the pusher stroke end to accommodate different box sizes. The SCJ80's 2513 N push force at 0.5 MPa handles dense product collation reliably.
In clamping or pressing fixtures, the adjustable stroke can be extended slightly over time to compensate for pad wear or material compression, maintaining consistent clamping force without replacing parts.
Choose the SCJ80 when you need the 2513 N push force at 0.5 MPa but require the ability to fine-tune the stroke end on the machine. If your application demands more force, stepping up to the SCJ100 provides 3927 N of push at the same pressure. For a simpler, fixed-stroke setup where adjustment is not needed, the standard SC80 cylinder is a cost-effective alternative. The SCJ80X40-10S is a direct replacement for any AirTAC SCJ80 with a 40 mm nominal stroke and 10 mm adjust range, PT ports, and a magnet sensor option. For strokes of 300 mm or more, evaluate side-loading and rod bending; use an external guide rail or a guided cylinder if the load is not perfectly axial.
Adjustable-stroke checklist
Because it is a single-rod cylinder, push and pull forces differ. At 0.5 MPa, it provides 2513 N push and 2268 N pull. At the maximum operating pressure of 0.9 MPa, push force reaches 4523 N. The 10 mm adjust range does not change the force output.
It can if you need the adjustable stroke feature and the mounting interface matches. The SCJ80 has a longer body (239 mm A-length) to house the adjusting screw. Ensure you have the clearance, and match the port size (PT3/8), rod thread (M20x1.5), and magnet option (-S) to your existing setup.
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