Airtac SCJ32 Standard Cylinder SCJ32X275-40
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X275-40 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, 275mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke275 mm
- Stroke adjust-40 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X275-40
The SCJ32X275-40 is a double-acting, single-rod pneumatic cylinder with a rear adjusting screw that provides 40 mm of field-adjustable stroke end control. With a 32 mm bore and a nominal 275 mm stroke, it delivers 402 N of push force at 0.5 MPa, making it a precise solution for applications requiring on-machine stroke fine-tuning during commissioning or format changes.
This model features a 12 mm diameter piston rod, PT1/8 pneumatic ports, and an M10x1.25 rod thread. The integrated air cushion measures 21 mm, and the body length A is 182 mm. The adjustable screw shortens the stroke end by up to 40 mm, allowing operators to dial in the exact stopping position without replacing the cylinder or adding external hard stops.
Airtac SCJ32 Standard Cylinder SCJ32X275-40 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X275-40 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 275 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 SCJ32X275-40
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×275 | 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 SCJ32X275-40 Is Used
Commissioning Fine-Tuning
Adjust the end stop by up to 40 mm during machine setup to perfectly align the actuator with tooling or fixtures without swapping cylinders.
Wear Compensation
On packaging lines, use the screw to take up mechanical play or compensate for gripper pad wear, maintaining consistent pick-and-place accuracy over time.
Format Changeover
Quickly adapt the stroke end for different product sizes on a small assembly cell, reducing changeover time compared to fixed-stroke cylinders.
Is the Airtac SCJ32 Standard Cylinder SCJ32X275-40 the Right Cylinder?
Choose the SCJ32 when you need to fine-tune the stroke end position within a 40 mm window on a compact machine. If your application demands more force, step up to the 40 mm bore SCJ40, which provides 628 N of push at 0.5 MPa. For applications where the stroke is fixed and never needs adjustment, the standard SC32 fixed-stroke cylinder is a more economical choice. A direct replacement must match the 32 mm bore, 275 mm nominal stroke, 40 mm adjust range, PT1/8 ports, and basic mounting configuration.
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 SCJ32X275-40 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 screw in the rear cap allows you to shorten the stroke end by up to 40 mm. The nominal 275 mm stroke is the maximum; turning the screw limits how far the piston extends, effectively setting a new, shorter end position without changing the cylinder body or port locations.
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