Airtac SCJ32 Standard Cylinder SCJ32X300-75
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X300-75 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 75 mm range without swapping the cylinder. Ø32mm bore, 300mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke300 mm
- Stroke adjust-75 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X300-75
The SCJ32X300-75 is a double-acting, single-rod pneumatic cylinder with a rear-cap adjusting screw that provides up to 75mm of field-adjustable stroke reduction. This allows you to fine-tune the end position without changing the cylinder, ideal for commissioning and format changes. It delivers 402N of push force at 0.5MPa and 724N at the maximum operating pressure of 0.9MPa, using a 12mm diameter piston rod.
Built on a durable tie-rod construction with a PT1/8 port and M10x1.25 rod thread, this model includes a 21mm air cushion for smooth deceleration. The body length A is 182mm, making it a compact solution for space-constrained automation tasks. The 300mm nominal stroke is well within the 1000mm maximum standard stroke for the 32mm bore, ensuring ready availability.
Airtac SCJ32 Standard Cylinder SCJ32X300-75 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X300-75 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 300 mm |
| Stroke adjustment | Up to 75 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 SCJ32X300-75
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×300 | Nominal (maximum) stroke length in mm. |
| -75 | 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 SCJ32X300-75 Is Used
Commissioning & Setup
Fine-tune the end-of-stroke position during machine commissioning without swapping cylinders or machining custom stops. The 75mm adjustment range on the SCJ32X300-75 lets technicians quickly dial in the perfect actuator throw for pick-and-place or sorting mechanisms.
Wear Compensation
In high-cycle packaging or assembly lines, tooling can wear and change the required stroke. This adjustable cylinder allows operators to easily take up slack or compensate for material thickness variations over time, maintaining consistent product quality.
Format Changeovers
Quickly adapt a machine to handle different product sizes. The rear screw adjustment on the 32mm bore cylinder enables a single actuator to serve multiple formats, reducing changeover time and the need for a stock of different fixed-stroke cylinders.
Is the Airtac SCJ32 Standard Cylinder SCJ32X300-75 the Right Cylinder?
Choose the SCJ32X300-75 when you need to precisely dial in a stroke end point on a machine during setup or after wear. If the 402N push force at 0.5MPa is insufficient, stepping up to the 40mm bore SCJ40 provides 628N. For applications requiring a fixed, non-adjustable stroke, the standard SC series is a simpler, more cost-effective alternative. A direct replacement must match the 32mm bore, 300mm nominal stroke, 75mm adjust range, PT port thread, and basic mounting.
For this 300mm stroke length, be mindful of side loading on the 12mm rod. If the load is not guided externally, the rod can bend under high lateral forces. In such cases, couple the cylinder with an external guide rail or consider a guided cylinder assembly to ensure reliable, long-life operation.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-75)
- ✓ 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 SCJ32X300-75 FAQ
At 0.5 MPa, the push force is 402 N and the pull force is 345 N. The force increases with pressure, reaching a maximum push force of 724 N at the 0.9 MPa operating limit. Because it is a single-rod cylinder, the push force is greater than the pull force.
Yes, physically, as the mounting footprint is the same. The SCJ version adds a rear adjusting screw, making the body slightly longer. Ensure the 75mm adjustment range does not interfere with your machine's structure and that you need the adjustable-stroke feature, as it adds cost over a standard SC cylinder.
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