Airtac SCJ32 Standard Cylinder SCJ32X175-20S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X175-20S 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, 175mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke175 mm
- Stroke adjust-20 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X175-20S
The SCJ32X175-20S is a 32 mm bore double-acting, single-rod cylinder that puts stroke-end fine-tuning directly in your hands. Its rear adjusting screw provides up to 20 mm of retraction adjustment, letting you dial in the exact stroke length on the machine without swapping the cylinder or adding external hard stops. At 0.5 MPa it delivers 402 N push and 345 N pull, making it a precise fit for light clamping, sorting, and assembly tasks.
This model includes a built-in magnet (-S suffix), so you can snap CMSG/DMSG/EMSG reed or solid-state sensors directly onto the tie-rod barrel for reliable end-of-stroke detection. The 12 mm rod, M10x1.25 rod thread, and PT1/8 port thread keep the unit compact, while the 21 mm air cushion decelerates the piston smoothly. The body length A(SCJ) is 182 mm, slightly longer than a fixed-stroke SC of the same envelope.
Airtac SCJ32 Standard Cylinder SCJ32X175-20S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X175-20S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 175 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 SCJ32X175-20S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×175 | 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 SCJ32X175-20S Is Used
Commissioning & Fine-Tuning
Dial in the precise end-stop during machine setup. The 20 mm screw adjustment lets technicians compensate for part tolerance stack-up without re-machining brackets.
Light Assembly Pressing
Use the 402 N push force for inserting bearings or dowels. The adjustable stroke prevents over-pressing by setting a mechanical depth limit.
Product Sorting Gate
Actuate a diverter flap on a small conveyor. The built-in magnet confirms the gate position, while the adjustable stroke handles different package widths.
Is the Airtac SCJ32 Standard Cylinder SCJ32X175-20S the Right Cylinder?
Step up to the 40 mm bore SCJ if your application needs more push force—the SCJ40 delivers 628 N at 0.5 MPa. If you never need to alter the stroke after commissioning, a fixed-stroke SC32 cylinder is a simpler, lower-cost alternative. For replacement, match the SCJ32 bore, 175 mm nominal stroke, 20 mm adjust range, PT port, basic mount, and the -S magnet option. At this 175 mm stroke, the rod is well-supported inside the standard stroke limit, but if you apply a significant side load, add an external linear guide to protect the rod bearing and seal.
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 SCJ32X175-20S FAQ
At the standard 0.5 MPa operating pressure, the push force is 402 N and the pull force is 345 N. At the maximum 0.9 MPa, the push force reaches 724 N. The pull force is lower because the 12 mm rod reduces the effective piston area on the return stroke.
A screw in the rear cap limits how far the piston can retract, shortening the stroke end by up to 20 mm. You turn the screw to set the exact retracted position you need. It does not change the cylinder's force or speed—it is purely a mechanical stroke-end stop.
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