Airtac SCJ32 Standard Cylinder SCJ32X80-20S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X80-20S 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, 80mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke80 mm
- Stroke adjust-20 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X80-20S
The SCJ32X80-20S provides a field-adjustable stroke end within a 20 mm range, letting you fine-tune the piston stop position without replacing the cylinder. With a 12 mm diameter rod and M10x1.25 rod thread, it delivers 402 N of push force at 0.5 MPa, making it a compact yet capable actuator for light positioning tasks.
This model includes a built-in magnet, so standard CMSG/DMSG/EMSG sensors clamp directly onto the tie-rod barrel for reliable end-of-stroke detection. The body length A measures 182 mm, and the PT1/8 port supplies the double-acting single-rod design with filtered air.
Airtac SCJ32 Standard Cylinder SCJ32X80-20S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X80-20S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 80 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 SCJ32X80-20S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×80 | 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 SCJ32X80-20S Is Used
Commissioning Fine-Tuning
The 20 mm rear adjustment screw lets technicians dial in the exact stroke end on a new machine during setup, compensating for small stack-up tolerances without swapping parts.
Wear Take-Up on Stops
In repetitive stopping applications, the adjustable stroke can be periodically tweaked to compensate for wear on external bumpers or tooling, maintaining consistent positioning.
Small-Part Clamping
The 402 N push force and adjustable end-stop suit light clamping or pressing fixtures where the final clamp position needs to be set precisely for different batch sizes.
Is the Airtac SCJ32 Standard Cylinder SCJ32X80-20S the Right Cylinder?
Choose this 32 mm bore when space is tight and the load requires up to 402 N push at 0.5 MPa. If you need more force, the 40 mm bore delivers 628 N push at the same pressure. The SCJ adjustable-stroke design is ideal where the exact stroke end must be dialled in during commissioning or after wear; if the stroke is fixed and never changes, the simpler SC series is a cost-effective alternative. For replacement, match the 32 mm bore, 80 mm nominal stroke, 20 mm adjust range, PT port thread, and the -S magnet option.
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 SCJ32X80-20S FAQ
At 0.5 MPa, the push force is 402 N and the pull force is 345 N. The push force is higher because the single rod reduces the effective piston area on the return stroke. At the maximum operating pressure of 0.9 MPa, push force reaches 724 N.
Yes, if you need the ability to adjust the stroke end. The SCJ shares the same bore, rod, and port dimensions as the SC. Ensure the 80 mm nominal stroke and 20 mm adjust range cover your motion, and match the PT thread and magnet option for sensor compatibility.
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