The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X100-100 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, 100mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X100-100 is an 80 mm bore, double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end. Its rear-cap adjusting screw provides a full 100 mm of stroke shortening, letting you fine-tune the end position from 0 to 100 mm without changing the cylinder body. At 0.5 MPa, it delivers 2513 N of push force and 2268 N on the pull stroke, and the 25 mm piston rod with PT3/8 ports handles typical mid-range automation loads.
The tie-rod construction houses a 28 mm air cushion for smooth deceleration. Because it is a single-rod design, push force is greater than pull force, a key factor when sizing for a load. This basic-configuration model uses the standard TPU seal for -20 to +70 °C operation and PT threads. The body length A(SCJ) is 239 mm, providing a compact envelope for its 100 mm nominal stroke and 100 mm adjustment range.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X100-100 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 100 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. |
| ×100 | 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.
The 100 mm adjustment range allows technicians to precisely dial in the final stop position of a pusher or stop gate on a new assembly line without fabricating custom hard stops, speeding up initial machine setup.
Quickly adapt a diverter or reject station to handle different product sizes. The operator can shorten the stroke end by up to 100 mm to match a new box width, eliminating mechanical change parts.
In clamping or pressing fixtures, the screw can be advanced over time to compensate for tooling or pad wear, maintaining consistent clamping force and position without replacing the entire actuator.
Choose the SCJ80X100-100 when your application requires a 100 mm maximum stroke that can be dialed back anywhere within a 100 mm window during commissioning or changeover. If you need more force, stepping up to a 100 mm bore provides 3927 N of push at the same pressure, while a 63 mm bore offers 1559 N if a smaller, lighter cylinder is acceptable. For a fixed, non-adjustable stroke, the SC80X100 is the direct equivalent. This cylinder is a direct replacement for another AirTAC SCJ80X100-100 with the same 100 mm adjust range, PT ports, and basic mounting. For a 100 mm stroke, side-loading is not typically a primary concern, but always ensure the rod is aligned with the load path to prevent premature seal wear.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, the push force is 2513 N and the pull force is 2268 N. The maximum push force at 0.9 MPa is 4523 N. Because it is a single-rod cylinder, the push force is always higher than the pull force due to the rod area on the return side.
A rear-cap screw sets the stroke end position within a 0-100 mm range, giving you a variable stroke without changing the nominal 100 mm rating. It is a direct dimensional replacement for an SCJ80X100-100. If you do not need adjustability, a fixed-stroke SC80X100 is the alternative, but you will lose the ability to fine-tune the end position on the machine.
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