The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X100-30 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø80mm bore, 100mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X100-30 is an 80 mm bore double-acting single-rod cylinder with a field-adjustable stroke end. A rear-cap screw lets you shorten the stroke by up to 30 mm without removing the cylinder, making it ideal for commissioning fine-tuning and format changeovers. It delivers 2513 N of push force at 0.5 MPa and uses a 25 mm diameter piston rod with PT3/8 ports.
This model has a 100 mm nominal stroke and a body length A of 239 mm. The adjustable air cushion decelerates the piston smoothly at stroke end, and the operating pressure range is 0.15–1.0 MPa. As a basic configuration, it comes with a TPU seal, PT threads, and no magnet, ready for standard industrial air service at -20 to +70 °C.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X100-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 100 mm |
| Stroke adjustment | Up to 30 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. |
| ×100 | Nominal (maximum) stroke length in mm. |
| -30 | 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.
Fine-tune the actuator end stop during initial machine bring-up. The 30 mm adjustment screw lets technicians dial in the exact stroke without swapping cylinders or fabricating shims.
Quickly adapt a packaging machine's pusher or diverter stroke for different product sizes. The rear screw adjustment is accessible and repeatable, minimizing line downtime between batches.
Take up mechanical play or seal wear over time in clamping and pressing fixtures. A simple turn of the adjusting screw restores the precise end position, extending the service interval of the tooling.
Choose the SCJ80X100-30 when you need to dial in a precise end position on a machine without adding external hard stops. If you need more force, stepping up to the 100 mm bore provides 3927 N of push at 0.5 MPa; for a lighter, more compact solution, the 63 mm bore delivers 1559 N. This adjustable-stroke cylinder is the right pick when the stroke length must be field-tuned, unlike a fixed-stroke SC cylinder.
For replacement, match an AirTAC SCJ cylinder with an 80 mm bore, 100 mm nominal stroke, a 30 mm adjustable range, and PT ports. This basic model has no magnet or mounting bracket. If your application involves significant side loads, consider adding an external guide rail or switching to a guided cylinder to protect the rod and bearings from bending.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N. Because it is a single-rod cylinder, the push force is higher than the pull force. The maximum push force at the 0.9 MPa operating limit is 4523 N.
Yes, if you need an adjustable stroke end. The SCJ80X100-30 has the same 80 mm bore and 100 mm maximum stroke as an SC80X100, but adds a rear adjusting screw with a 30 mm range. Ensure the slightly longer body length A of 239 mm fits your machine and that you match the port thread (PT) and mounting style.
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