Airtac SCJ32 Standard Cylinder SCJ32X80-50S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X80-50S 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, 80mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke80 mm
- Stroke adjust-50 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X80-50S
The SCJ32X80-50S is a 32mm bore double-acting single-rod cylinder with a field-adjustable stroke end, letting you fine-tune the 80mm nominal stroke down by up to 50mm without swapping the unit. Its 12mm rod and PT1/8 ports deliver 402 N of push force at 0.5 MPa, making it a compact solution for light-duty positioning tasks where the final stop point needs on-machine tweaking.
A built-in magnet (the -S suffix) allows CMSG/DMSG/EMSG sensors to clamp directly onto the tie-rod barrel for reliable end-of-stroke sensing. The cylinder uses a rear-cap adjusting screw to set the stroke end position, not the force or speed, and includes an adjustable air cushion for smooth deceleration. Body length A is 182 mm, slightly longer than the fixed-stroke SC version to accommodate the screw mechanism.
Airtac SCJ32 Standard Cylinder SCJ32X80-50S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X80-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 80 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 SCJ32X80-50S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×80 | 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 SCJ32X80-50S Is Used
Commissioning & Setup
During machine commissioning, the 50mm adjustment range lets technicians dial in the exact stop position for a part nest or clamp without fabricating custom shims or hard stops.
Small Part Diverting
On a packaging line, fine-tune the stroke end of a diverter gate to accommodate slightly different box widths after a product changeover, ensuring reliable redirection without jamming.
Wear Compensation
In a repetitive pressing or staking operation, the adjusting screw can be advanced to compensate for tooling wear over time, maintaining consistent contact pressure without reprogramming the machine.
Is the Airtac SCJ32 Standard Cylinder SCJ32X80-50S the Right Cylinder?
Step up to the 40mm bore SCJ40 series if your application needs more force—the SCJ40 provides 628 N of push at 0.5 MPa. For tasks requiring a fixed, repeatable stroke without the need for field adjustment, the standard SC32 series offers a simpler, more cost-effective option. This SCJ32X80-50S is a direct replacement for another AirTAC SCJ32 cylinder with an 80mm nominal stroke, a 50mm adjust range, PT ports, basic mounting, and a magnet sensor option. For strokes of 300mm or more, consider an external guide rail to protect the 12mm rod from side-load bending.
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 SCJ32X80-50S FAQ
At the standard 0.5 MPa operating pressure, the cylinder produces 402 N of push force and 345 N of pull force. The maximum push force at 0.9 MPa is 724 N. The push force is higher than the pull force because it is a single-rod design.
Yes, provided the mounting and porting match. The SCJ32 has the same bore, rod size, and port thread (PT1/8) as the SC32, but the body is slightly longer to house the rear adjusting screw. Ensure you have clearance for the extended body length A of 182 mm and that the adjustable stroke range covers your required end-position variation.
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