Airtac SCJ32 Standard Cylinder SCJ32X225-75S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X225-75S 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. Ø32mm bore, 225mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke225 mm
- Stroke adjust-75 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X225-75S
The AirTAC SCJ32X225-75S is a double-acting, single-rod tie-rod cylinder with a field-adjustable stroke end. Its rear-cap screw provides up to 75 mm of stroke shortening, letting you dial in the exact end position without swapping the cylinder. This model features a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors.
With a 32 mm bore and 12 mm rod, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa. The PT1/8 port and M10x1.25 rod thread suit compact pneumatic systems. A 21 mm air cushion decelerates the piston smoothly, and the 182 mm body length keeps the package tidy for space-constrained automation.
Airtac SCJ32 Standard Cylinder SCJ32X225-75S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X225-75S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 225 mm |
| Stroke adjustment | Up to 75 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| 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, 21 mm |
| Max stroke | Up to 1000 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 SCJ32 Standard Cylinder SCJ32X225-75S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | 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 SCJ32 Standard Cylinder SCJ32X225-75S Is Used
Commissioning Fine-Tuning
The 75 mm adjustment range allows technicians to precisely set the end-of-stroke position during machine setup, eliminating the need for hard stops or custom spacers.
Product Format Changeover
Quickly adapt the stroke for different product sizes on a packaging line. The rear screw adjusts the push point without disassembling the actuator, minimizing downtime.
Wear Compensation
In clamping or pressing fixtures, the adjustable stroke can be extended over time to compensate for pad or tooling wear, maintaining consistent contact force without replacing the cylinder.
Is the Airtac SCJ32 Standard Cylinder SCJ32X225-75S the Right Cylinder?
Choose the SCJ32X225-75S when you need to fine-tune a 225 mm stroke by up to 75 mm during commissioning or changeovers. If you need more force, step up to the 40 mm bore SCJ40 series, which provides 628 N of push at 0.5 MPa. For applications where the stroke never needs adjustment, a fixed-stroke SC32X225 cylinder is a simpler, cost-effective alternative.
A direct replacement must match the 32 mm bore, 225 mm nominal stroke, 75 mm adjust range, PT thread, and the -S magnet option. For strokes of 225 mm, ensure the rod is not subjected to high side loads; if lateral forces are present, add an external linear guide or switch to a guided cylinder to prevent rod bending and seal wear.
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 SCJ32 Standard Cylinder SCJ32X225-75S FAQ
At 0.5 MPa, the push force is 402 N and the pull force is 345 N. The maximum operating pressure is 1.0 MPa, yielding a theoretical push force of 804 N. The pull force is lower due to the 12 mm piston rod area.
Yes, if you need adjustable stroke. The SCJ32X225-75S has the same 32 mm bore and mounting footprint as an SC32, but its body is slightly longer to house the adjusting screw. Ensure your mounting arrangement has clearance for the rear screw mechanism.
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