The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X80-10 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. Ø80mm bore, 80mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X80-10 is an 80 mm bore double-acting single-rod cylinder that delivers 2513 N of push force at 0.5 MPa, making it a strong choice for medium-to-heavy linear tasks. Its defining feature is the rear-cap adjusting screw, which provides up to 10 mm of field-adjustable stroke-end reduction, allowing machine builders to dial in the exact stopping position during commissioning or changeovers without reaching for a different cylinder.
This model uses a 25 mm diameter piston rod with PT3/8 ports and M20x1.5 rod thread for secure tooling attachment. The integrated air cushion, with a 28 mm cushion length, decelerates the piston quietly at end of travel. The body length A is 239 mm, slightly longer than a fixed-stroke SC of the same envelope to house the adjustment mechanism.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X80-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 80 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. |
| ×80 | 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 bring-up, the 10 mm rear screw lets technicians tweak the actuator end point without re-machining brackets or swapping cylinders, speeding up the debug process.
On a packaging line where a mechanical stop pad compresses over time, the adjustable stroke compensates for material wear, maintaining precise placement without immediate parts replacement.
When a case erector switches between box sizes, operators can quickly dial the 80 mm cylinder's stroke back by a few millimetres to match the new flap-folding position, reducing downtime.
Choose the SCJ80X80-10 when you need the 2513 N push force of an 80 mm bore but must fine-tune the stroke end position by up to 10 mm on the machine. If your load requires less force, stepping down to a 63 mm bore (1559 N push at 0.5 MPa) saves space and air consumption; for heavier demands, the 100 mm bore provides 3927 N. A fixed-stroke SC cylinder is a better pick when the stroke length is permanently fixed and you want the lowest cost and shortest overall body length.
For replacement, match the 80 mm bore, 80 mm nominal stroke, 10 mm adjust range, and PT port thread. This basic-mount version accepts the SCJ mounting subset: FA front flange, LB foot, or TC centre trunnion with TCM1 bracket. The SCJ does not offer FB flange or clevis mounts.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, this 80 mm bore cylinder generates 2513 N of push force. The pull force is slightly lower at 2268 N because the 25 mm piston rod reduces the effective piston area on the return stroke. At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 5026 N.
Yes, this is a direct dimensional and performance replacement for any AirTAC SCJ80X80-10 cylinder. Ensure your existing unit also uses the basic mounting style and PT ports. If your old cylinder had a magnet (suffix -S) or a different mounting bracket like TC or LB, you will need to order the corresponding suffix code to get a drop-in match.
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