The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X300-10 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, 300mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X300-10 is an 80 mm bore double-acting, single-rod cylinder with a 10 mm rear stroke-end adjustment, giving you fine control over the retract stop position without changing the cylinder. Its 25 mm rod and PT3/8 ports deliver 2513 N of push force at 0.5 MPa, scaling up to 4523 N at 0.9 MPa.
A 28 mm air cushion decelerates the piston smoothly, and the body length A measures 239 mm. This model runs on standard strokes up to 1500 mm, so the 300 mm stroke is well within the standard range. The adjustable screw lets you dial in the exact stopping point during commissioning or after wear, keeping your machine cycle precise.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X300-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 300 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. |
| ×300 | 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.
Dial in the exact retract stop during machine setup without swapping shims or hard stops. The 10 mm screw adjustment allows for quick, precise positioning.
On a packaging line, take up mechanical play in the linkage over time by slightly extending the stroke end, maintaining consistent product placement.
Adjust the cylinder stroke to handle different product sizes on a single machine, reducing changeover time between batches.
Choose the SCJ80X300-10 when you need to fine-tune the stroke end position in situ. If you need more force, the SCJ100 offers 3927 N push at 0.5 MPa; for a lighter, more compact option, the SCJ63 delivers 1559 N. For fixed-stroke applications where adjustment is unnecessary, the standard SC series is a simpler, cost-effective alternative. At a 300 mm stroke, ensure the rod is supported against side loads—use an external guide or switch to a guided cylinder if lateral forces are present. A direct replacement must match the 80 mm bore, 300 mm nominal stroke, 10 mm adjust range, PT ports, and basic mounting.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N. The maximum operating push force at 0.9 MPa is 4523 N.
A rear-cap screw limits the piston's retract stroke end. You can shorten the effective stroke by up to 10 mm from the nominal 300 mm, allowing field adjustment without disassembling the cylinder.
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