Airtac SCJ32 Standard Cylinder SCJ32X150-20S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X150-20S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 20 mm range without swapping the cylinder. Ø32mm bore, 150mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke150 mm
- Stroke adjust-20 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X150-20S
The SCJ32X150-20S is a 32mm bore double-acting, single-rod cylinder with a 20mm rear stroke-end adjustment screw, giving you a field-tunable stroke for fine-positioning tasks. With a 12mm rod and PT1/8 ports, it delivers 402 N of push force at 0.5 MPa, making it suitable for light clamping, sorting, and diverting applications.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG/DMSG/EMSG sensors on the tie-rod barrel for reliable end-of-stroke detection. The body length A(SCJ) is 182 mm, and the standard TPU seal operates comfortably from -20 to +70 °C.
Airtac SCJ32 Standard Cylinder SCJ32X150-20S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X150-20S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 150 mm |
| Stroke adjustment | Up to 20 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 SCJ32X150-20S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×150 | Nominal (maximum) stroke length in mm. |
| -20 | 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 SCJ32X150-20S Is Used
Commissioning & Setup
Fine-tune the end-stop position during machine commissioning without swapping cylinders or machining external hard stops, saving setup time.
Light Part Ejection
Adjust the ejection stroke for different small part heights on an assembly line, using the 20mm range to prevent part damage from over-travel.
Sensor Calibration
The built-in magnet enables precise sensor positioning, while the adjustable stroke lets you perfectly align the physical stop with the sensor's detection point.
Is the Airtac SCJ32 Standard Cylinder SCJ32X150-20S the Right Cylinder?
Step up to the SCJ40 bore if you need more force; the 40mm delivers 628 N push at 0.5 MPa. If your application requires a fixed, repeatable stroke without field adjustment, the standard SC32 fixed-stroke cylinder is a simpler alternative. For a drop-in replacement, match the 32mm bore, 150mm nominal stroke, 20mm adjust range, PT port thread, and the integrated magnet. Since this is a 150mm stroke, be mindful of side loads—consider an external linear guide if the rod is subjected to radial forces.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-20)
- ✓ 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 SCJ32X150-20S FAQ
At 0.5 MPa, the push force is 402 N and the pull force is 345 N. Because it is a single-rod cylinder, the pull force is lower due to the 12mm rod area. The maximum push force at 0.9 MPa is 724 N.
Yes, this is a direct dimensional replacement for any AirTAC SCJ32 cylinder with a 150mm nominal stroke and 20mm adjust range. Ensure your existing mounting (basic in this case) and port type (PT) match. The -S magnet is an added feature for sensor compatibility.
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