Airtac SCJ32 Standard Cylinder SCJ32X225-75
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X225-75 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. 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 SCJ32X225-75
The SCJ32X225-75 brings field-adjustable stroke control to a compact 32 mm bore tie-rod cylinder, delivering 402 N of push force at 0.5 MPa and up to 724 N at the 0.9 MPa maximum operating pressure. A rear-cap adjusting screw lets you shorten the stroke end by as much as 75 mm without removing the cylinder, which is ideal for commissioning trials or format changes on small-bore automation.
With a 12 mm diameter piston rod, M10x1.25 rod thread, and PT1/8 ports, this double-acting single-rod unit includes a 21 mm air cushion for smooth deceleration. The body length A(SCJ) is 182 mm plus stroke, and the standard stroke ceiling for this bore is 1000 mm, so the requested 225 mm falls well within the standard range.
Airtac SCJ32 Standard Cylinder SCJ32X225-75 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X225-75 |
|---|---|
| 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 SCJ32X225-75
| 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 SCJ32X225-75 Is Used
Commissioning Fine-Tuning
Dial in the exact stroke end position during machine setup with the 75 mm adjustment screw, eliminating the need to swap cylinders or fabricate external hard stops.
Small-Part Ejector Adjustment
Adjust the ejector stroke on a pick-and-place or sorting module to handle different component heights without reprogramming the actuator, using the full 225 mm nominal reach.
Wear Take-Up on Clamp Units
Compensate for jaw or pad wear over time by shortening the stroke end with the rear screw, maintaining consistent clamping force on a 32 mm bore fixture.
Is the Airtac SCJ32 Standard Cylinder SCJ32X225-75 the Right Cylinder?
Step up to the 40 mm bore SCJ40 series when you need more push force—it provides 628 N at 0.5 MPa, a 56% increase over this 32 mm model's 402 N. If your application does not require on-the-fly stroke changes, a fixed-stroke SC32X225 cylinder offers the same force and envelope without the adjusting mechanism. For direct replacement, match the 32 mm bore, 225 mm nominal stroke, 75 mm adjust range, PT thread, and basic mounting; add the -S suffix if your original unit had a magnet for CMSG/DMSG sensors. At a 225 mm stroke, ensure the rod is guided if side loads are present, or consider an external guide rail 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 SCJ32 Standard Cylinder SCJ32X225-75 FAQ
At 0.5 MPa, the push force is 402 N and the pull force is 345 N (the difference is due to the single 12 mm rod reducing the piston area on the return side). At the maximum operating pressure of 0.9 MPa, push force reaches 724 N.
A rear-cap screw sets the stroke end position within a 75 mm range, shortening the 225 mm nominal stroke. It is a direct dimensional replacement for an SC32 of the same bore and stroke only if the SC32 application has clearance for the longer SCJ body (A=182 mm plus stroke) and you need the adjustability. The port, rod, and mounting are identical.
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