The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X80-100 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. Ø80mm bore, 80mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X80-100 is an 80 mm bore, double-acting, single-rod pneumatic cylinder with a nominal 80 mm stroke and a 100 mm rear adjusting screw, giving you a wide field-adjustable range to fine-tune the stroke end position. At 0.5 MPa it delivers 2513 N of push force and 2268 N on the pull stroke, making it a solid mid-range workhorse for pressing, clamping, and positioning tasks where the final stop point needs dialling in during commissioning or changeover.
A 25 mm diameter piston rod and PT3/8 ports ensure robust flow and mechanical rigidity, while the integrated 28 mm air cushion decelerates the piston quietly near stroke end. The body length A(SCJ) is 239 mm, slightly longer than a fixed-stroke SC of the same bore to house the adjusting mechanism. This model comes in the basic configuration with TPU seals and PT threads, ready for direct integration with your choice of SCJ mounting accessories.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X80-100 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 80 mm |
| Stroke adjustment | Up to 100 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. |
| ×80 | 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.
The 100 mm adjustment range lets technicians dial in the exact retract stop position during machine commissioning without cutting guide rails or adding external hard stops, speeding up line bring-up.
Quickly adapt the cylinder stroke for different product sizes on a packaging or assembly line. The rear screw adjustment is accessible without dismounting the cylinder, minimising downtime between batches.
In high-cycle clamping fixtures, the adjustable stroke end can be periodically tweaked to compensate for gripper pad or tooling wear, maintaining consistent clamp force and part registration over the cylinder's service life.
Step up to the SCJ100X80-100 if you need more push force—the 100 mm bore provides 3927 N at the same 0.5 MPa. For lighter, faster applications, the SCJ63X80-100 offers 1559 N push and a more compact footprint. The SCJ is the right choice when you need to tweak the stroke end on the machine without swapping cylinders; if your stroke is fixed and never changes, a standard SC series cylinder is a simpler, lower-cost alternative. This SCJ80X80-100 replaces any AirTAC SCJ80 with an 80 mm nominal stroke and a 100 mm adjust range, matching PT thread and basic mounting. For strokes of 300 mm or more, consider an external guide rod or a guided cylinder to protect the 25 mm rod from side-load deflection.
Adjustable-stroke checklist
At the standard operating pressure of 0.5 MPa, this 80 mm bore cylinder produces 2513 N on the push stroke and 2268 N on the pull stroke. At the maximum operating pressure of 1.0 MPa, push force reaches 5026 N theoretical. Because it is a single-rod cylinder, push force is always greater than pull force.
It can replace another AirTAC SCJ80 with an 80 mm nominal stroke and a 100 mm adjust range directly. To replace a fixed-stroke SC80, you must confirm that the SCJ's longer body length (239 mm) fits your machine envelope and that you need the adjustable feature. The port thread (PT3/8), mounting interface, and rod diameter are identical to the SC80 series.
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