The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X30-10 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, 30mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X30-10 is an 80 mm bore, double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end. Its rear-cap adjusting screw provides up to 10 mm of retraction from the 30 mm nominal stroke, letting you fine-tune the end position without swapping the cylinder or adding external hard stops. At 0.5 MPa, it delivers 2513 N of push force and 2268 N on the pull stroke.
This tie-rod cylinder uses a 25 mm diameter piston rod, PT3/8 ports, and an M20x1.5 rod thread for tooling attachment. The integrated air cushion is 28 mm long, decelerating the piston smoothly. With a body length A of 239 mm, it fits compact machine layouts while offering the convenience of on-machine stroke adjustment for commissioning and changeover tasks.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X30-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 30 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. |
| ×30 | 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 setup, the 10 mm adjusting screw lets technicians precisely set the actuator's end stop to align with tooling or fixtures, eliminating the need to shim or reposition the cylinder body.
In high-cycle clamping or pressing stations, the adjustable stroke compensates for wear on workpiece contact surfaces or tooling, maintaining consistent clamping force without immediate part replacement.
For packaging or assembly lines running multiple product sizes, operators can quickly adjust the cylinder's retracted position to accommodate different box heights or component thicknesses with a simple screw turn.
Choose the SCJ80X30-10 when you need to dial in a precise end position within a 10 mm window. If your force requirement is lower, stepping down to the 63 mm bore (1559 N push at 0.5 MPa) saves space; for higher force, the 100 mm bore provides 3927 N. If the stroke never needs adjustment, the fixed-stroke SC80X30 is a simpler, cost-effective alternative. For a drop-in replacement, match the 80 mm bore, 30 mm nominal stroke, 10 mm adjust range, PT3/8 ports, and basic mounting. Note that for any stroke over 300 mm, an external guide is recommended to protect the rod from side loads.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, this 80 mm bore cylinder produces 2513 N of push force and 2268 N of pull force. The push force is higher because the single piston rod reduces the effective piston area on the pull side. At the maximum operating pressure of 1.0 MPa, the theoretical push force is 5026 N.
It is a direct replacement for another AirTAC SCJ80X30-10 with PT ports and basic mounting. To replace a different brand, verify the 80 mm bore, 30 mm nominal stroke, 10 mm adjust range, M20x1.5 rod thread, PT3/8 pneumatic ports, and the 239 mm body length. The rear adjusting screw must not interfere with your machine's structure.
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