Airtac SCJ100 Standard Cylinder SCJ100X225-75S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X225-75S 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. Ø100mm bore, 225mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke225 mm
- Stroke adjust-75 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X225-75S
This AirTAC SCJ100X225-75S is a double-acting, single-rod pneumatic cylinder engineered with a rear-cap adjusting screw that provides up to 75 mm of field-adjustable stroke-end reduction, enabling precise fine-tuning without cylinder replacement. With a 100 mm bore and a 25 mm piston rod, it delivers a substantial 3927 N push force at 0.5 MPa, making it a powerful actuator for heavy-duty positioning tasks.
The built-in magnet (denoted by the -S suffix) allows direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the tie-rod barrel for reliable end-of-stroke detection. Operating on filtered air from 0.15 to 1.0 MPa, this cylinder features a PT3/8 port, an M20x1.5 rod thread, and a 29 mm air cushion for smooth deceleration, with a body length of 245 mm.
Airtac SCJ100 Standard Cylinder SCJ100X225-75S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X225-75S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 225 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 SCJ100X225-75S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×225 | 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 SCJ100X225-75S Is Used
Commissioning & Setup Trials
The 75 mm adjustment range lets commissioning engineers dial in the exact stroke end position on a new assembly line without swapping cylinders or machining custom stops, saving hours of setup time.
Product Format Changeover
Quickly adapt the stroke of a pusher or diverter on a packaging conveyor to handle different box sizes, using the rear screw to change the stopping point in minutes during a format change.
Wear Compensation in Clamping
In a high-cycle clamping fixture, the adjustable stroke can be periodically tweaked to take up mechanical wear on tooling or contact surfaces, maintaining consistent clamp force without replacing the actuator.
Is the Airtac SCJ100 Standard Cylinder SCJ100X225-75S the Right Cylinder?
Select the SCJ100X225-75S when you need a robust, field-tunable actuator for a 225 mm nominal stroke. If the 3927 N push force at 0.5 MPa is insufficient, stepping up to the 125 mm bore provides 6136 N; if it exceeds your requirement, the 80 mm bore offers 2513 N. For applications where the stroke length will never need adjustment, the fixed-stroke SC100X225 is a more economical alternative. This model is a direct replacement for an existing AirTAC SCJ100X225-75S with a PT port, basic mounting, and a magnet. For strokes of 300 mm or more, evaluate side-loading on the 25 mm rod and consider an external guide or a guided cylinder to prevent rod bending.
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 SCJ100X225-75S FAQ
The theoretical push force is 3927 N at 0.5 MPa and 7068 N at the maximum operating pressure of 0.9 MPa. The pull force is 3681 N at 0.5 MPa due to the rod area. The rear adjusting screw only changes the stroke end position; it does not alter the cylinder's bore, piston area, or force output.
Yes, it is a direct dimensional and performance match for any AirTAC SCJ100X225-75S cylinder with a PT port, basic mounting, and a magnet. Ensure the replacement unit has the same bore, nominal stroke, and 75 mm adjustment range to guarantee identical mounting and functionality.
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