Airtac SCJ100 Standard Cylinder SCJ100X500-75
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X500-75 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. Ø100mm bore, 500mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke500 mm
- Stroke adjust-75 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X500-75
The SCJ100X500-75 is a double-acting, single-rod tie-rod cylinder that puts 3927 N of push force at 0.5 MPa into a field-adjustable stroke package. Its rear-cap adjusting screw lets you shorten the stroke end by up to 75 mm without swapping the cylinder, making it a practical choice for commissioning trials or format changeovers on medium-to-large automation frames. The 25 mm rod and PT1/2 ports handle the flow, while the 29 mm air cushion decelerates the piston smoothly.
With a body length A(SCJ) of 245 mm and a maximum standard stroke of 1500 mm for this bore, the unit operates on 0.15–1.0 MPa filtered air. At the 0.9 MPa upper limit, push thrust reaches 7068 N. The adjustable stroke end is purely mechanical—it sets the retract stop position and does not alter the cylinder's force rating or speed capability.
Airtac SCJ100 Standard Cylinder SCJ100X500-75 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X500-75 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 500 mm |
| Stroke adjustment | Up to 75 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/2 |
| 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, 29 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.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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.
Model Code: Airtac SCJ100 Standard Cylinder SCJ100X500-75
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×500 | 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.
Where the Airtac SCJ100 Standard Cylinder SCJ100X500-75 Is Used
End-Stop Fine Tuning
Dial in the exact retract position during machine commissioning with the 75 mm adjusting screw, eliminating the need to shim or reposition hard stops.
Format Changeovers
Quickly adapt the stroke end for different product sizes on packaging or material-handling lines without changing the cylinder or plumbing.
Wear Take-Up
Compensate for gripper pad or tooling wear over time by slightly shortening the stroke end, maintaining consistent part contact without reprogramming.
Is the Airtac SCJ100 Standard Cylinder SCJ100X500-75 the Right Cylinder?
Step up to a 125 mm bore if your application demands more than the 3927 N push at 0.5 MPa this SCJ100 delivers—the 125 bore provides 6136 N at the same pressure. If your stroke never needs field adjustment, a fixed-stroke SC100X500 saves cost and a small amount of length. For a direct replacement, match the 100 mm bore, 500 mm nominal stroke, 75 mm adjust range, PT port thread, basic mounting, and no magnet. At 500 mm stroke, rod bending under side load becomes a real risk; use an external guide rail or switch to a guided cylinder if the load is not perfectly axial.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-75)
- ✓ Required force at your working pressure
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear adjusting screw, then lock it before running.
- check Adjust end cushion screws for smooth stops.
- check Use SCJ mounting accessory (FA / LB / TC / TCM1).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCJ100 Standard Cylinder SCJ100X500-75 FAQ
At 0.5 MPa, push force is 3927 N and pull force is 3681 N. At the maximum operating pressure of 0.9 MPa, push thrust reaches 7068 N. Because it is a single-rod cylinder, push force is always greater than pull force.
Only if you need the adjustable stroke feature. The SCJ100X500-75 has the same bore, rod, and port dimensions as an SC100, but the rear adjusting screw adds length. Ensure your mounting space accommodates the longer SCJ body and that the 75 mm adjustment range suits your process.
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