Airtac SCJ32 Standard Cylinder SCJ32X75-50STC
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X75-50STC is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø32mm bore, 75mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke75 mm
- Stroke adjust-50 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X75-50STC
The SCJ32X75-50S is a 32 mm bore, single-rod double-acting cylinder with a rear adjusting screw that provides a 50 mm stroke-end adjustment range, letting you fine-tune the 75 mm nominal stroke on the machine without replacing the cylinder. Its 12 mm diameter rod and PT1/8 ports deliver 402 N of push force at 0.5 MPa, making it a compact yet precise actuator for light positioning tasks.
This model includes a built-in magnet for CMSG/DMSG/EMSG sensors and a TC centre trunnion mount (F-SC32TC) for pivoting applications. The 21 mm air cushion decelerates the piston smoothly at stroke end, and the body length A is 182 mm, keeping the package short for tight installations.
Airtac SCJ32 Standard Cylinder SCJ32X75-50STC Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X75-50STC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 75 mm |
| Stroke adjustment | Up to 50 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 SCJ32X75-50STC
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×75 | Nominal (maximum) stroke length in mm. |
| -50 | 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 SCJ32X75-50STC Is Used
Commissioning & Setup
The 50 mm adjustment screw lets technicians dial in the exact stroke end position during machine commissioning, eliminating the need to swap cylinders or fabricate external stops for small-bore positioning axes.
Small Part Diverting
Used on packaging conveyors to extend a diverter gate by a precise, adjustable distance. The trunnion mount allows the cylinder body to pivot as the gate swings, while the sensor confirms full extension.
Wear Take-Up on Clamps
Compensates for jaw or pad wear in light-duty clamping fixtures. The stroke can be incrementally extended via the rear screw to maintain consistent clamping pressure without repositioning the entire cylinder assembly.
Is the Airtac SCJ32 Standard Cylinder SCJ32X75-50STC the Right Cylinder?
Choose the SCJ32 when you need a compact, field-tunable stroke up to 75 mm. If your force requirement grows, step up to the SCJ40 which delivers 628 N push at 0.5 MPa. For fixed-stroke applications where the 50 mm adjustment range is unnecessary, the standard SC32 is a simpler, lower-cost alternative. When replacing, match the 32 mm bore, 75 mm nominal stroke, 50 mm adjust range, PT port thread, TC trunnion mount, and magnet option exactly.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-50)
- ✓ 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 SCJ32X75-50STC FAQ
At 0.5 MPa, it produces 402 N of push force and 345 N of pull force. The maximum push force at the 0.9 MPa operating limit is 724 N. The pull force is lower because the 12 mm rod reduces the effective piston area on the return stroke.
Yes, if you need field-adjustable stroke. The SCJ32 shares the same bore, rod, and port dimensions as the SC32 but adds a rear adjusting screw. Ensure your mounting (here, TC centre trunnion) and magnet option match, and verify the 50 mm adjustment range covers your stroke variation needs.
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