The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X500-100S 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, 500mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X500-100S is an 80 mm bore, double-acting, single-rod pneumatic cylinder that puts field-adjustable stroke control directly on the machine. Its rear-cap adjusting screw provides up to 100 mm of stroke-end reduction from the 500 mm nominal maximum, letting commissioning engineers and maintenance teams fine-tune the end position without swapping cylinders or adding external hard stops. The 25 mm diameter piston rod and 28 mm air cushion work together to deliver smooth, controlled deceleration in demanding production cycles.
At standard 0.5 MPa air pressure, this cylinder generates 2513 N of push force and 2268 N of pull force, placing it in a robust mid-range force class suitable for pressing, clamping, and material-handling tasks. The built-in magnet (denoted by the -S suffix) allows direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors for reliable, non-contact end-of-stroke sensing. With a body length of 239 mm and PT3/8 ports, it integrates into existing pneumatic panels while offering a genuine AirTAC solution for applications requiring repeatable, on-the-fly stroke tuning.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X500-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 500 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. |
| ×500 | 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.
During new machine bring-up, the 100 mm adjustment range allows engineers to dial in the exact actuator end-stop for part placement, adhesive dispensing, or welding heads without iterative mechanical modifications.
On packaging or assembly lines running multiple product sizes, operators can quickly reset the stroke end to accommodate different box heights or component thicknesses, minimizing downtime between batches.
In high-cycle press or clamping fixtures, the adjusting screw can be periodically advanced to compensate for tooling or pad wear, maintaining consistent clamp force and part quality over the tool's service life.
Step up to the 100 mm bore SCJ if your application demands more than the 2513 N push force available here at 0.5 MPa; the SCJ100 series delivers 3927 N at the same pressure. If your stroke is fixed and never needs field adjustment, the standard SC80 fixed-stroke cylinder offers a slightly shorter body and is a more economical choice. For guided loads or applications where the rod must resist significant side forces, a guided cylinder or external linear guide should be paired with this unit.
This SCJ80X500-100S is a direct replacement for another AirTAC SCJ80 adjustable-stroke cylinder with a 500 mm nominal stroke, 100 mm adjust range, PT3/8 ports, and a built-in magnet. The 500 mm stroke length warrants careful attention to rod support; ensure the load is guided and aligned to prevent rod bending or uneven seal wear, especially when the adjusting screw is set near the full 100 mm retraction.
Adjustable-stroke checklist
At 0.5 MPa, push force is 2513 N and pull force is 2268 N. At the maximum operating pressure of 0.9 MPa, push force reaches 4523 N. The pull force is lower because the 25 mm piston rod reduces the effective area on the return stroke.
A rear-cap screw lets you shorten the stroke end by up to 100 mm from the 500 mm nominal maximum. It is a direct dimensional replacement for another AirTAC SCJ80 with the same bore, stroke, adjust range, and port type. It cannot be replaced by a fixed-stroke SC80 unless you remove the need for field adjustment.
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