Airtac SCJ32 Standard Cylinder SCJ32X175-50SN
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X175-50SN 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, 175mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke175 mm
- Stroke adjust-50 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X175-50SN
The SCJ32X175-50SN is a 32 mm bore double-acting single-rod cylinder with a field-adjustable stroke end. A rear-cap screw provides up to 50 mm of adjustment, letting you fine-tune the 175 mm nominal stroke without swapping the cylinder. With a 12 mm rod and PT1/8 ports, it delivers 402 N of push force at 0.5 MPa.
This model is configured with NBR (nitrile) seals and a built-in magnet, so CMSG/DMSG sensors clamp directly onto the tie-rod barrel for end-of-stroke sensing. The body length is 182 mm plus stroke, and the pneumatic cushion is 21 mm. It is a genuine AirTAC unit, ideal for commissioning trials and format changeovers on compact machinery.
Airtac SCJ32 Standard Cylinder SCJ32X175-50SN Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X175-50SN |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 175 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 SCJ32X175-50SN
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×175 | 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 SCJ32X175-50SN Is Used
Commissioning Fine-Tuning
The 50 mm adjustment range lets technicians dial in the exact end-stop position during machine setup without changing hard stops or cylinder mounts, speeding up production line commissioning.
Small-Part Diverter Gates
Perfect for adjusting the throw of a diverter gate on a compact conveyor. The NBR seals and magnet allow for reliable sensing in standard industrial environments.
Wear Take-Up in Clamping
In light clamping or pressing fixtures, the adjustable stroke compensates for tooling wear or material thickness variations over time, maintaining consistent clamp force without reprogramming.
Is the Airtac SCJ32 Standard Cylinder SCJ32X175-50SN the Right Cylinder?
Choose the SCJ32 when you need up to 402 N push at 0.5 MPa and the ability to dial in the stroke end on the machine. If your load requires more force, step up to the SCJ40 bore, which provides 628 N push at the same pressure. For applications needing a fixed, non-adjustable stroke, the standard SC32 is a simpler alternative. The replacement match is an SCJ32 with a 175 mm nominal stroke, a 50 mm adjust range, PT ports, and a magnet.
At a 175 mm stroke, the 12 mm rod is well-supported for axial loads. If the application introduces significant side forces, consider an external guide rail or switching to a guided cylinder to prevent rod bending and premature seal wear.
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 SCJ32X175-50SN FAQ
At 0.5 MPa, the push force is 402 N and the pull force is 345 N. The maximum push force at the 0.9 MPa operating limit is 724 N. Because it is a single-rod cylinder, the push force is greater than the pull force.
A rear-cap adjusting screw lets you shorten the stroke end by up to 50 mm from the 175 mm nominal maximum. This is a mechanical stroke-end limiter, not a force or speed control. It allows field adjustment without replacing the cylinder, unlike a fixed-stroke SC.
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