The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X80-75S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 75 mm range without swapping the cylinder. Ø80mm bore, 80mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X80-75S is an 80 mm bore double-acting single-rod pneumatic cylinder with a rear-cap adjusting screw that provides up to 75 mm of field-adjustable stroke reduction. At 0.5 MPa, it delivers 2513 N of push force and 2268 N on the pull stroke, making it a robust choice for medium-duty positioning tasks where the end-stop needs frequent fine-tuning without swapping the cylinder.
This model includes a built-in magnet (-S suffix) so CMSG/DMSG/EMSG reed and solid-state sensors can be clamped directly onto the tie-rod barrel for non-contact position sensing. The 25 mm diameter piston rod, PT3/8 ports, and 28 mm air cushion combine to offer smooth, reliable deceleration in a body length of 239 mm (A dimension).
| Model | Airtac SCJ80 Standard Cylinder SCJ80X80-75S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 80 mm |
| Stroke adjustment | Up to 75 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. |
| ×80 | Nominal (maximum) stroke length in mm. |
| -75 | 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.
The 75 mm adjustment screw lets technicians dial in the exact stroke end position during machine setup without removing the cylinder, drastically cutting commissioning time on assembly fixtures.
On packaging lines, the adjustable stroke allows operators to quickly reset the push-off or reject station stroke for different box sizes, minimizing downtime between production runs.
In clamping or pressing operations, the stroke can be incrementally extended over the cylinder's life to compensate for tooling wear or material compression set, maintaining consistent process force.
Step up to the 100 mm bore SCJ100 if your application requires more than 2513 N of push force at 0.5 MPa, as the SCJ100 delivers 3927 N. Conversely, if space is tight and 1559 N of force is sufficient, the 63 mm bore SCJ63 is a more compact alternative. For applications where the stroke never needs adjustment, a fixed-stroke SC80 cylinder is a simpler, cost-effective choice.
This SCJ80X80-75S replaces any AirTAC SCJ80 adjustable-stroke cylinder with the same 80 mm nominal stroke and 75 mm adjustment range, provided the port thread (PT), basic mounting style, and built-in magnet match. For strokes of 300 mm or longer, be aware that side-loading can cause rod bending; an external linear guide or a guided cylinder should be used to protect the rod and seals.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, the push force is 2513 N and the pull force is 2268 N. At the maximum operating pressure of 1.0 MPa, the theoretical push force is 5026 N. The pull force is always lower due to the area of the 25 mm piston rod.
Yes, if you need the ability to adjust the stroke end. The SCJ80X80-75S has the same 80 mm bore and nominal 80 mm stroke, but the rear adjusting screw allows you to shorten the stroke by up to 75 mm. Ensure the mounting, port thread (PT), and magnet option match your existing setup.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.