Airtac SCJ32 Standard Cylinder SCJ32X125-100S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X125-100S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø32mm bore, 125mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke125 mm
- Stroke adjust-100 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X125-100S
The SCJ32X125-100S is a double-acting, single-rod pneumatic cylinder that puts fine stroke tuning directly on the machine. Its rear-cap adjusting screw provides up to 100 mm of field-adjustable stroke-end reduction, letting you dial in the exact 125 mm nominal maximum without swapping parts or adding external hard stops. The 12 mm diameter piston rod and M10x1.25 rod thread suit light positioning and clamping tasks.
At 0.5 MPa, this 32 mm bore cylinder delivers 402 N of push force and 345 N on the pull stroke, with a maximum push of 724 N at 0.9 MPa. The built-in magnet (denoted by the -S suffix) allows CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for reliable end-of-stroke sensing. A 21 mm air cushion at each end decelerates the piston quietly, and the standard PT1/8 port keeps plumbing simple.
Airtac SCJ32 Standard Cylinder SCJ32X125-100S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X125-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 125 mm |
| Stroke adjustment | Up to 100 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 SCJ32X125-100S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×125 | Nominal (maximum) stroke length in mm. |
| -100 | 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 SCJ32X125-100S Is Used
Commissioning & Setup
Technicians can fine-tune the end position of a stop or clamp during initial machine setup without cutting brackets or re-drilling mounting holes, saving hours of mechanical adjustment.
Product Changeover
On a packaging line, the stroke can be quickly shortened by up to 100 mm to accommodate a new box size, eliminating the need to swap out the cylinder for a different format.
Wear Compensation
In a pressing or clamping operation, the stroke end can be incrementally adjusted over the cylinder's life to compensate for tooling wear, maintaining consistent contact pressure.
Is the Airtac SCJ32 Standard Cylinder SCJ32X125-100S the Right Cylinder?
Choose the SCJ32 when your application needs a compact, adjustable stroke in the 32 mm bore class. If you require more force, stepping up to the 40 mm bore provides 628 N of push at 0.5 MPa. For applications where the stroke never needs field adjustment, the fixed-stroke SC32 series offers a simpler, more cost-effective solution. This SCJ32X125-100S is a direct replacement for any AirTAC SCJ32X125-100S cylinder with a PT port, basic mount, and magnet.
For this 125 mm stroke, rod buckling is not a primary concern under axial loads within the cylinder's force rating. However, always ensure the load is guided if significant side forces are present to prevent premature rod bearing and seal wear.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-100)
- ✓ 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 SCJ32X125-100S FAQ
At the standard 0.5 MPa operating pressure, this cylinder provides 402 N of pushing force and 345 N of pulling force. The maximum push force at 0.9 MPa is 724 N.
Yes, the SCJ32X125-100S shares the same mounting footprint and port size as the SC32. It is a drop-in replacement when you need the ability to fine-tune the stroke end by up to 100 mm in the field.
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