The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X275-10S 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, 275mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X275-10S is an 80 mm bore double-acting, single-rod cylinder with a field-adjustable stroke end, offering 2513 N of push force at 0.5 MPa. Its rear-cap adjusting screw provides up to 10 mm of stroke-end reduction, allowing precise mechanical fine-tuning of the piston stop position without disconnecting the cylinder from the machine.
This model includes a built-in magnet (-S suffix), enabling direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors on the tie-rod barrel for reliable end-of-stroke detection. With a 25 mm piston rod, PT3/8 ports, and a 28 mm air cushion, it handles demanding industrial sequencing tasks where commissioning tweaks or format changeovers require quick, repeatable stroke adjustments.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X275-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 275 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. |
| ×275 | 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 startup, the 10 mm adjusting screw lets technicians dial in the exact stroke end position to align with tooling or stops, eliminating the need to shim or re-drill mounting brackets.
On packaging lines where a mechanical stop wears over time, the adjustable stroke can be periodically shortened to maintain precise product placement without replacing the cylinder or the hard stop.
The built-in magnet allows direct mounting of CMSG sensors to confirm gate position. The adjustable stroke lets operators change the gate opening width for different product sizes on a sorting conveyor.
Choose this 80 mm bore when your application needs around 2513 N of push force at standard plant pressure. If you can step down, the 63 mm bore delivers 1559 N push at 0.5 MPa, saving space and air consumption; if you need more force, the 100 mm bore provides 3927 N. The 10 mm adjustment range is ideal for fine end-stop calibration on a stable process. For a fixed, non-adjustable stroke, the standard SC series is a simpler alternative.
A genuine replacement must match the SCJ80 bore, 275 mm nominal stroke, the -10 adjust range, PT port thread, and the -S magnet option. For strokes of 275 mm, ensure the rod is not subjected to high side loads; if lateral forces are present, pair the cylinder with an external guide rail or consider a guided cylinder to prevent rod bending and premature seal wear.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N (due to the 25 mm rod area). At the maximum operating pressure of 0.9 MPa, the push force reaches 4523 N. The 10 mm adjustment screw changes only the stroke end position, not the cylinder's force output.
Yes, if your current cylinder is an AirTAC SCJ80 with a 275 mm nominal stroke, 10 mm adjust range, PT ports, and a built-in magnet. Verify the mounting style matches (this is a basic body mount). The tie-rod design and body dimensions are consistent, so it drops into the same footprint.
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