Airtac SCJ32 Standard Cylinder SCJ32X80-75
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X80-75 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, 80mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke80 mm
- Stroke adjust-75 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X80-75
The SCJ32X80-75 is a 32 mm bore double-acting single-rod cylinder with a rear-cap adjusting screw that lets you shorten the stroke end by up to 75 mm in the field. At 0.5 MPa it delivers 402 N push and 345 N pull, driven by a 12 mm rod through PT1/8 ports. The 21 mm air cushion decelerates the piston quietly, and the tie-rod body (A=182 mm) keeps the unit serviceable.
Because the stroke is adjustable, one model can cover multiple end-stop positions that would otherwise require several fixed-stroke cylinders or external hard stops. The screw only sets the stroke end—it does not alter force, speed, or the 80 mm nominal maximum rating. Operating pressure spans 0.15–1.0 MPa, and the standard TPU seals work from -20 to +70 °C.
Airtac SCJ32 Standard Cylinder SCJ32X80-75 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X80-75 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 80 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 SCJ32X80-75
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×80 | 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 SCJ32X80-75 Is Used
Commissioning & Setup
Dial in the exact stroke end during machine bring-up without cutting guide rails or swapping cylinders. The 75 mm adjust range covers most trial-and-error positioning needs on small automation cells.
Format Changeover
Quickly re-set the stop position when a packaging line switches between box sizes. One SCJ32X80-75 replaces multiple fixed-stroke cylinders, reducing changeover time and spare-part stock.
Wear Take-Up
Compensate for pad or gripper wear over time by advancing the stroke end a few millimetres. The rear screw adjustment avoids re-teaching the PLC or re-shimming the tooling.
Is the Airtac SCJ32 Standard Cylinder SCJ32X80-75 the Right Cylinder?
Choose the SCJ32 when you need a compact adjustable stroke up to 1000 mm and push force around 402 N at 0.5 MPa. If your load demands more push, step up to the 40 mm bore (628 N at 0.5 MPa). For applications that do not require field adjustment, the fixed-stroke SC32 is simpler and slightly shorter. When side-loads are present, add an external guide rail or switch to a guided cylinder, because the 12 mm rod can bend under off-axis forces.
To replace an existing SCJ32X80-75, match the 32 mm bore, 80 mm nominal stroke, 75 mm adjust range, PT1/8 ports, and the basic (no-bracket) mounting. If the original carried a magnet suffix (-S), order SCJ32X80-75S to keep sensor compatibility.
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 SCJ32X80-75 FAQ
At 0.5 MPa the push force is 402 N and pull force is 345 N (the difference comes from the 12 mm rod area). At the maximum operating pressure of 0.9 MPa, push reaches 724 N. The adjusting screw does not change the force output.
Yes, if the mounting, port size (PT1/8), and bore match. The SCJ32 body is slightly longer to house the adjusting screw (A=182 mm). Ensure the 75 mm adjust range covers your stroke variation needs; the nominal stroke remains 80 mm.
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