Airtac SCJ32 Standard Cylinder SCJ32X450-50
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X450-50 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø32mm bore, 450mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke450 mm
- Stroke adjust-50 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X450-50
The SCJ32X450-50 is a double-acting, single-rod pneumatic cylinder that puts stroke-end fine-tuning directly in your hands. Its rear-cap adjusting screw provides a 50 mm adjustable range, letting you dial in the exact stopping position on the fly without swapping the cylinder. With a 12 mm rod diameter and PT1/8 ports, this model delivers 402 N of push force at 0.5 MPa, scaling up to 724 N at its 0.9 MPa maximum operating pressure.
This adjustable-stroke design is ideal for commissioning trials, format changeovers, and applications where mechanical wear requires periodic take-up. The 21 mm air cushion at each end decelerates the piston smoothly, protecting your tooling. As a genuine AirTAC component, the SCJ32X450-50 is built for reliable, repeatable performance in compact automation tasks.
Airtac SCJ32 Standard Cylinder SCJ32X450-50 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X450-50 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 450 mm |
| Stroke adjustment | Up to 50 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 SCJ32X450-50
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×450 | Nominal (maximum) stroke length in mm. |
| -50 | 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 SCJ32X450-50 Is Used
Commissioning & Setup
Fine-tune the end-of-stroke position during machine commissioning without needing to order multiple fixed-stroke cylinders. The 50 mm adjustment range allows rapid, on-site optimization of the actuator's stopping point.
Product Changeover
Quickly adapt a stop gate or diverter for different product sizes on a packaging line. The rear adjusting screw lets operators change the cylinder's extended length in seconds, minimizing downtime between production runs.
Wear Compensation
Take up mechanical play in clamping or pressing fixtures over time. As tooling or contact surfaces wear, the adjustable stroke can be incrementally extended to maintain consistent clamping force and position without replacing the cylinder.
Is the Airtac SCJ32 Standard Cylinder SCJ32X450-50 the Right Cylinder?
Select the SCJ32 when your application needs a compact 32 mm bore with up to 402 N of push force at standard plant air. If you require more force, stepping up to the SCJ40 provides 628 N of push at 0.5 MPa. For applications that don't need field-adjustable stroke, the fixed-stroke SC32 series offers a simpler, more cost-effective alternative. This SCJ32X450-50 is a direct replacement for any AirTAC SCJ32 cylinder with a 450 mm nominal stroke, 50 mm adjust range, PT ports, and basic mounting.
At a 450 mm stroke, consider the potential for side-loading and rod deflection. If your application involves off-axis loads, use an external guide rail or switch to 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 (-50)
- ✓ 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 SCJ32X450-50 FAQ
The push force is 402 N at 0.5 MPa and 724 N at the maximum operating pressure of 0.9 MPa. The pull force is 345 N at 0.5 MPa. This difference is due to the single-rod design, where the rod occupies area on the piston's retract side.
Yes, if you need the adjustable stroke feature. The SCJ32X450-50 has the same bore, port size (PT1/8), and mounting interface as an SC32, but its body length A is 182 mm, which is slightly longer to accommodate the rear adjusting mechanism. Ensure you have the extra space in your machine layout.
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