Airtac SCJ32 Standard Cylinder SCJ32X450-50S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X450-50S 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 SCJ32X450-50S
The SCJ32X450-50S is a double-acting, single-rod pneumatic cylinder with a 50 mm field-adjustable stroke range, letting you fine-tune the stroke end without removing the cylinder. Its 32 mm bore delivers 402 N of push force at 0.5 MPa, making it a compact yet capable actuator for light-to-medium automation tasks where precise end-position setup is critical.
This model includes a built-in magnet (-S suffix) for direct mounting of CMSG/DMSG/EMSG sensors, enabling reliable end-of-stroke detection. The 12 mm diameter piston rod, PT1/8 port, and 21 mm air cushion ensure smooth deceleration. With a 450 mm nominal stroke, it is well within the 1000 mm maximum standard stroke for this bore size.
Airtac SCJ32 Standard Cylinder SCJ32X450-50S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X450-50S |
|---|---|
| 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 SCJ32X450-50S
| 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 SCJ32X450-50S Is Used
Commissioning & Setup
The 50 mm adjust range lets technicians quickly dial in the exact stroke end on a new machine without swapping cylinders or machining custom stops, accelerating factory acceptance tests.
Product Format Changeover
Ideal for adjustable-width conveyor guides or diverters, where the stroke must be altered to handle different product sizes. The sensor magnet confirms the new position is reached every cycle.
Wear Compensation
In clamping or pressing fixtures, the stroke can be incrementally extended over time to compensate for pad wear, maintaining consistent clamping force without reprogramming the machine controller.
Is the Airtac SCJ32 Standard Cylinder SCJ32X450-50S the Right Cylinder?
Choose the SCJ32X450-50S when you need to dial in a stroke end during commissioning or changeovers, and the 402 N push force at 0.5 MPa fits your load. If you need more force, step up to the 40 mm bore SCJ, which provides 628 N of push at the same pressure. For applications requiring a fixed, non-adjustable stroke, the standard SC series is a simpler alternative. This cylinder is a direct replacement for another AirTAC SCJ32 with a 450 mm nominal stroke, 50 mm adjust range, PT thread, and magnet, using basic mounting. For strokes of 300 mm or more like this one, evaluate side loads carefully; if the rod is not guided, consider adding an external linear guide to prevent bending.
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 SCJ32X450-50S FAQ
At 0.5 MPa, the 32 mm bore generates 402 N of push force and 345 N of pull force (the difference is due to the 12 mm rod area). At the maximum operating pressure of 1.0 MPa, the theoretical push force is 804 N.
Yes, if the mounting, port size, and bore match. The SCJ32X450-50S has the same envelope as an SC32X450 but with a rear adjusting screw. Ensure your machine has clearance for the slightly longer body length (A=182 mm for the base cylinder) and that the 50 mm adjustment range covers your stroke variation needs.
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