Airtac SCJ32 Standard Cylinder SCJ32X75-40S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X75-40S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 40 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-40 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X75-40S
The SCJ32X75-40S brings field-adjustable stroke control to compact automation in a 32mm bore package. With a nominal stroke of 75mm and a rear-cap adjusting screw offering a 40mm reduction range, you can fine-tune the end position on the fly without swapping the cylinder. The single-rod design delivers 402 N of push force at 0.5 MPa, while the 12mm piston rod and 21mm air cushion ensure smooth deceleration.
This model includes a built-in magnet, allowing CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for reliable end-of-stroke detection. The PT1/8 port and M10x1.25 rod thread integrate easily with standard pneumatic circuits. The body length A is 182mm, making it a drop-in fit where space is tight but adjustability is non-negotiable.
Airtac SCJ32 Standard Cylinder SCJ32X75-40S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X75-40S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 75 mm |
| Stroke adjustment | Up to 40 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 SCJ32X75-40S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×75 | Nominal (maximum) stroke length in mm. |
| -40 | 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 SCJ32X75-40S Is Used
Commissioning & Setup
During machine commissioning, the 40mm adjuster lets technicians dial in the exact stroke end position for grippers, pushers, or stops without removing the cylinder, cutting setup time.
Wear Take-Up in Clamping
In clamping fixtures, the adjustable stroke compensates for jaw or pad wear over time. A quick turn of the rear screw restores full clamping force without disassembling the tooling.
Small-Part Sorting Gates
Use the SCJ32 to actuate a diverter gate on a conveyor. The 40mm adjustment range allows fine-tuning of the gate opening to match different product sizes during batch changeovers.
Is the Airtac SCJ32 Standard Cylinder SCJ32X75-40S the Right Cylinder?
Choose the SCJ32 when your application demands stroke-end tweaking within a 40mm window, such as during commissioning or format changes. If you need more push force, step up to the SCJ40 (628 N at 0.5 MPa); if you need less, a smaller bore is not available in this series. For fixed-stroke applications where the end position never changes, the standard SC32 cylinder is a simpler, cost-effective alternative. This SCJ32X75-40S replaces any AirTAC SCJ32 with a 75mm nominal stroke and 40mm adjust range, matching the PT thread and magnet option. For strokes of 300mm or more, consider an external guide rail to prevent rod buckling under side loads.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-40)
- ✓ 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 SCJ32X75-40S FAQ
At 0.5 MPa, the push force is 402 N and the pull force is 345 N. At the maximum operating pressure of 0.9 MPa, push force reaches 724 N. The pull force is lower due to the area of the 12mm piston rod.
Yes, if you need the ability to fine-tune the stroke end. The SCJ32X75-40S has the same bore, port size (PT1/8), and rod thread (M10x1.25) as an SC32. Ensure your mounting and sensor setup is compatible, noting the SCJ body is slightly longer to house the adjusting screw.
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