Airtac SCJ32 Standard Cylinder SCJ32X40-40
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X40-40 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, 40mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke40 mm
- Stroke adjust-40 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X40-40
The SCJ32X40-40 is a 32 mm bore, double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end. A rear-cap adjusting screw provides up to 40 mm of stroke reduction from the 40 mm nominal maximum, letting you fine-tune the piston stop position without removing the cylinder from the machine.
This model delivers 402 N of push force at 0.5 MPa and 724 N at the maximum operating pressure of 0.9 MPa. The 12 mm diameter piston rod uses an M10x1.25 thread, and the cylinder body length A(SCJ) is 182 mm. It is a tie-rod design with a PT1/8 port and a 21 mm air cushion for end-of-stroke deceleration.
Airtac SCJ32 Standard Cylinder SCJ32X40-40 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X40-40 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 40 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 SCJ32X40-40
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×40 | 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 SCJ32X40-40 Is Used
End-Stop Calibration
Fine-tune the actuator end position during machine commissioning, eliminating the need to fabricate shims or reposition external stops.
Wear Compensation
Adjust the stroke end to take up mechanical wear in tooling or gripper jaws, maintaining consistent part contact over the machine's life.
Small-Part Sorting Gates
Dial in the exact gate opening width for different product sizes on a conveyor line, enabling quick changeover between batches.
Is the Airtac SCJ32 Standard Cylinder SCJ32X40-40 the Right Cylinder?
Choose the SCJ32X40-40 when you need to dial in a precise end position during commissioning or after a format change, without adding external hard stops. If your load requires more push force, step up to the 40 mm bore SCJ40 series, which provides 628 N at the same 0.5 MPa pressure. For applications needing a fixed, non-adjustable stroke, the standard SC32 series is a simpler alternative. A direct replacement must match the 32 mm bore, 40 mm nominal stroke, 40 mm adjustment range, PT1/8 port thread, and basic mounting style.
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 SCJ32X40-40 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 due to the rod area on the return side.
You can, provided the 40 mm nominal stroke and the physical envelope are compatible. The SCJ body is slightly longer to house the adjusting mechanism. The adjustable stroke lets you reduce the stroke end by up to 40 mm, offering flexibility a fixed-stroke cylinder does not have.
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