The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X275-100S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø80mm bore, 275mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X275-100S is an 80 mm bore double-acting single-rod cylinder with a rear adjusting screw that provides up to 100 mm of field-adjustable stroke-end control, letting you fine-tune the 275 mm nominal stroke without swapping the unit. At 0.5 MPa it delivers 2513 N push and 2268 N pull, and the 25 mm rod and 28 mm air cushion handle deceleration reliably.
This model includes a built-in magnet (S suffix), so CMSG/DMSG/EMSG sensors clamp directly onto the tie-rod barrel for contactless position sensing. The body length A is 239 mm, and the PT3/8 ports and M20x1.5 rod thread match standard AirTAC SCJ80 plumbing and tooling.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X275-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 275 mm |
| Stroke adjustment | Up to 100 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. |
| -100 | 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.
A dial-adjustable stroke end lets a single fixture handle product variants with different push-to-depth requirements, eliminating mechanical stop changes between batches.
As tooling or gripper pads wear, the 100 mm screw adjustment restores the exact clamp position without re-machining stops or shimming the cylinder mount.
Fine-tune the gate opening stroke on-site during commissioning or after maintenance, ensuring packages divert cleanly without over-travel into adjacent lanes.
Choose the SCJ80X275-100S when you need to commission or change over a mid-stroke position without replacing the cylinder—the 100 mm adjustment range covers most format-change or wear-take-up needs. If you need more force, step up to the 100 mm bore (3927 N push at 0.5 MPa); for a lighter, more compact solution the 63 mm bore offers 1559 N. For a fixed-stroke application where no field adjustment is required, the standard SC80 is a simpler choice. The replacement match is an AirTAC SCJ80 with 275 mm nominal stroke, 100 mm adjust range, PT ports, and a magnet-equipped barrel.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, the cylinder produces 2513 N pushing force and 2268 N pulling force. At the maximum operating pressure of 1.0 MPa, the push force reaches 4523 N. The rear adjusting screw sets the stroke end position but does not alter the force output.
The rear-cap screw mechanically limits how far the piston extends, giving you up to 100 mm of stroke-end adjustment from the 275 mm nominal maximum. It is not a retrofit kit—the SCJ is a dedicated cylinder body. To replace an existing SCJ, match the bore, nominal stroke, adjust range, port thread, and magnet option exactly.
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