The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X100-75 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, 100mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X100-75 is an 80 mm bore double-acting single-rod cylinder that puts field-adjustable stroke control at your fingertips. With a nominal 100 mm stroke and a generous 75 mm rear-end adjustment range, you can dial in the exact end position during commissioning or changeovers. At 0.5 MPa it delivers 2513 N of push force and 2268 N on the pull stroke, backed by a 25 mm diameter piston rod and PT3/8 ports.
This tie-rod cylinder features a 28 mm air cushion to decelerate the piston smoothly, and the body length (A dimension) is 239 mm. The rear adjusting screw physically limits the stroke end—it does not alter the bore force or act as a speed controller. Operating pressure spans 0.15–1.0 MPa, with a proof pressure of 1.5 MPa, making it a robust choice for format-dependent machinery.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X100-75 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 100 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. |
| ×100 | 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.
During machine bring-up, the 75 mm adjustment range lets technicians quickly dial in the exact stroke end position without fabricating custom stops or repeatedly swapping fixed-stroke cylinders.
When a packaging line switches between product sizes, the rear screw adjusts the pusher or gating cylinder stroke end in minutes, accommodating different box heights or tray widths with a single actuator.
In clamping or pressing fixtures, the adjustable stroke end can be advanced slightly over time to compensate for tooling wear or material compression, maintaining consistent clamp force without reprogramming the PLC.
Choose this SCJ80X100-75 when you need to fine-tune the end stop of an 80 mm bore actuator without external hard stops. If your force requirement drops, the 63 mm bore SCJ delivers 1559 N push at 0.5 MPa; if you need more muscle, the 100 mm bore provides 3927 N. For applications where the stroke length is permanently fixed and never needs field tweaking, the standard SC fixed-stroke cylinder is a simpler, lower-cost alternative.
This cylinder is a direct replacement for an existing AirTAC SCJ80X100-75 with PT threads and basic mounting. For strokes of 300 mm or longer, evaluate side-loading and rod bending—if the load is not perfectly guided, add an external linear guide or switch to a guided cylinder to protect the rod bearings and seal.
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 difference is due to the single 25 mm rod area). At the maximum operating pressure of 0.9 MPa, the push force reaches 4523 N.
No. The SCJ is an AirTAC tie-rod cylinder with its own body dimensions (A=239 mm for this model) and is not dimensionally interchangeable with ISO 15552 profile cylinders. It is a direct match only for another AirTAC SCJ80 cylinder with the same nominal stroke, 75 mm adjustment range, and PT port threads.
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