Airtac SCJ32 Standard Cylinder SCJ32X175-40
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X175-40 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, 175mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke175 mm
- Stroke adjust-40 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X175-40
The SCJ32X175-40 is a double-acting, single-rod pneumatic cylinder from the AirTAC SCJ adjustable-stroke family, offering a nominal 175 mm stroke with a 40 mm rear-end adjustment range. This field-tunable design lets you fine-tune the stroke end position without replacing the cylinder, making it ideal for commissioning trials or format changeovers on compact machinery. With a 32 mm bore and 12 mm piston rod, it delivers 402 N of push force at 0.5 MPa, scaling up to 724 N at 0.9 MPa.
Built on a durable tie-rod construction, this cylinder body measures 182 mm in length (A dimension) and features PT1/8 ports with an M10x1.25 rod thread for easy linkage attachment. The integrated air cushion (21 mm length) decelerates the piston smoothly at stroke end, reducing impact and noise. Note that the adjusting screw sets only the stroke end position; it does not lock the load or adjust speed, so external guides or brakes are required if position holding is needed.
Airtac SCJ32 Standard Cylinder SCJ32X175-40 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X175-40 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 175 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 SCJ32X175-40
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×175 | 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 SCJ32X175-40 Is Used
Commissioning & Setup
During machine commissioning, the 40 mm adjustment screw allows technicians to precisely set the final stop position for a 175 mm stroke actuator, compensating for assembly tolerances without needing to shim or re-drill mounting brackets.
Small-Part Diverter Gates
Ideal for actuating diverter flaps on compact conveyor lines. The adjustable stroke lets operators fine-tune the gate opening angle for different product sizes, with the 402 N push force at 0.5 MPa providing ample power for light-duty sorting tasks.
Wear Compensation in Clamping
In repetitive clamping fixtures, the stroke-end screw can be advanced to compensate for wear on contact pads or tooling, maintaining consistent clamping force over thousands of cycles without reprogramming the machine controller.
Is the Airtac SCJ32 Standard Cylinder SCJ32X175-40 the Right Cylinder?
Choose the SCJ32X175-40 when you need to dial in the end-of-stroke position for a 175 mm throw, with up to 40 mm of take-up for wear or setup variation. If your force requirement grows, stepping up to the 40 mm bore SCJ40 provides 628 N of push at 0.5 MPa. For applications that don't require stroke adjustment, the fixed-stroke SC32X175 simplifies the bill of materials. This model is a direct replacement for an existing AirTAC SCJ32 of the same 175 mm nominal stroke, 40 mm adjust range, PT ports, and basic mounting configuration. For strokes of this length, ensure the rod is not subjected to high side loads; if lateral forces are present, add an external linear guide or consider 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 (-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 SCJ32X175-40 FAQ
At 0.5 MPa operating pressure, the push force is 402 N and the pull force is 345 N (reduced due to the 12 mm rod area). At the maximum operating pressure of 0.9 MPa, the push force increases to 724 N. The theoretical maximum at 1.0 MPa is 82 kgf.
The SCJ32X175-40 has a rear-cap adjusting screw that lets you shorten the stroke end by up to 40 mm in the field. This is used for fine-tuning the end position during setup or changeovers. The fixed-stroke SC32 cylinder has no such adjustment; its stroke is set at the factory and cannot be altered without changing the cylinder.
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