Airtac SCJ32 Standard Cylinder SCJ32X225-40
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X225-40 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, 225mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke225 mm
- Stroke adjust-40 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X225-40
The SCJ32X225-40 is a double-acting, single-rod tie-rod cylinder with a rear-cap adjusting screw, allowing the stroke end position to be fine-tuned within a 40 mm range without replacing the unit. This 32 mm bore model delivers 402 N of push force and 345 N of pull force at 0.5 MPa, making it suitable for light-duty positioning and end-stop adjustment tasks.
With a 12 mm diameter piston rod and PT1/8 ports, the cylinder body has a base length (A) of 182 mm. It features an adjustable air cushion of 21 mm for smooth deceleration and operates at speeds from 30 to 800 mm/s. The nominal 225 mm stroke is well within the 1000 mm maximum standard stroke for this bore size.
Airtac SCJ32 Standard Cylinder SCJ32X225-40 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X225-40 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 225 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 SCJ32X225-40
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×225 | 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 SCJ32X225-40 Is Used
Commissioning & Setup
Fine-tune the actuator end-stop during machine commissioning to perfectly align with mating parts, eliminating the need to fabricate shims or external hard stops.
Wear Take-Up
Compensate for mechanical wear in linkages or gripper pads over time by adjusting the cylinder's stroke end, maintaining consistent clamping force and product handling.
Small-Part Sorting
Adjust the push stroke length to handle different product sizes on a sorting line, providing a quick mechanical changeover without reprogramming a servo axis.
Is the Airtac SCJ32 Standard Cylinder SCJ32X225-40 the Right Cylinder?
Choose the SCJ32 when you need to dial in a precise stroke end position on a machine, such as during commissioning or format changes. If the 402 N push force at 0.5 MPa is insufficient, stepping up to the SCJ40 provides a significant force increase to 628 N. For applications that do not require field adjustability, the simpler fixed-stroke SC32 cylinder is a direct alternative. A direct replacement must match the 32 mm bore, 225 mm nominal stroke, 40 mm adjustment range, PT port thread, 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 SCJ32X225-40 FAQ
At the standard operating pressure of 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 mechanism in the rear cap limits the piston's retraction, allowing you to shorten the stroke end by up to 40 mm from the nominal 225 mm. It is a mechanical stroke stop, not a force or speed regulator, and it does not lock the piston rod in place when air pressure is removed.
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