Airtac SCJ32 Standard Cylinder SCJ32X400-75S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X400-75S 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, 400mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke400 mm
- Stroke adjust-75 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X400-75S
The SCJ32X400-75S is a double-acting, single-rod pneumatic cylinder that puts stroke-end fine-tuning directly on the machine. Its rear adjusting screw provides up to 75 mm of adjustment from the nominal 400 mm stroke, letting commissioning engineers dial in the exact end position without swapping cylinders or fabricating external stops. With a 12 mm piston rod and M10x1.25 rod thread, it delivers 402 N of push force at 0.5 MPa.
This model includes a built-in magnet (-S suffix), so standard CMSG/DMSG/EMSG reed and solid-state sensors clamp directly onto the tie-rod barrel for reliable, non-contact position sensing. The body length A(SCJ) is 182 mm, and the 21 mm air cushion at each end decelerates the piston smoothly. It operates on 40 µm filtered air from 0.15 to 1.0 MPa and is a genuine AirTAC component built for repeatable performance in light-automation tasks.
Airtac SCJ32 Standard Cylinder SCJ32X400-75S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X400-75S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 400 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 SCJ32X400-75S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×400 | 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 SCJ32X400-75S Is Used
Commissioning & Setup
The 75 mm adjustment range lets technicians fine-tune the stroke end position during machine commissioning, eliminating the need to machine custom stops or order multiple fixed-stroke cylinders for trial fits.
Wear Take-Up on Stops
In high-cycle pick-and-place or diverting stations, the rear screw can be periodically advanced to compensate for wear on the tooling or external hard stop, maintaining precise placement without any part changes.
Format Changeover
For packaging or assembly lines that handle multiple product sizes, the adjustable stroke allows a single actuator to be quickly reset for different push or eject distances, reducing changeover time and inventory.
Is the Airtac SCJ32 Standard Cylinder SCJ32X400-75S the Right Cylinder?
Select the SCJ32 bore when your application needs up to 402 N of push force at standard plant air pressure. If the load requires more force, stepping up to the SCJ40 bore provides 628 N of push at the same 0.5 MPa. For applications where the stroke length is fixed and will never need field changes, the standard SC32 fixed-stroke cylinder offers a simpler, lower-cost alternative. The SCJ32X400-75S is a direct replacement for an existing AirTAC SCJ32 of the same 400 mm nominal stroke, 75 mm adjust range, PT port thread, and magnet-equipped configuration. At a 400 mm stroke, ensure the rod is guided externally or use a guided cylinder if the load applies any significant side force, to prevent rod bending and premature 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 SCJ32X400-75S FAQ
At 0.5 MPa operating pressure, the cylinder generates 402 N of push force and 345 N of pull force. The push force is higher because the single piston rod reduces the effective piston area on the return stroke. The maximum push force at the 0.9 MPa upper operating limit is 724 N.
Yes, this is a direct form-and-function replacement for any AirTAC SCJ32 adjustable-stroke cylinder with a 400 mm nominal stroke, a 75 mm adjustment range, a built-in magnet, and PT ports. It is not dimensionally interchangeable with ISO 15552 cylinders. Ensure the mounting style (basic, FA, LB, or TC) matches your machine's brackets.
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