Airtac SCJ32 Standard Cylinder SCJ32X450-20
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X450-20 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 20 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-20 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X450-20
The AirTAC SCJ32X450-20 is a double-acting, single-rod tie-rod cylinder featuring a rear-cap adjusting screw that provides up to 20 mm of field-adjustable stroke-end reduction. This allows fine-tuning of the piston stop position without replacing the cylinder or adding external hard stops, making it ideal for commissioning and format changeovers. At 0.5 MPa, it delivers 402 N of push force, while the pull force is 345 N due to the 12 mm piston rod.
With a 450 mm nominal stroke and a 21 mm air cushion, this cylinder is built for smooth deceleration in medium-reach applications. The PT1/8 ports and M10x1.25 rod thread are standard. Its body length A(SCJ) is 182 mm plus stroke, and the maximum standard stroke for this 32 mm bore is 1000 mm, so this model is well within standard manufacturing limits.
Airtac SCJ32 Standard Cylinder SCJ32X450-20 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X450-20 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 450 mm |
| Stroke adjustment | Up to 20 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 SCJ32X450-20
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×450 | Nominal (maximum) stroke length in mm. |
| -20 | 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 SCJ32X450-20 Is Used
End-Stop Calibration
Fine-tune the final position of a pusher arm during machine commissioning without loosening mounting bolts, saving setup time on assembly lines.
Wear Compensation
Adjust the stroke end to take up mechanical wear on a conveyor diverter gate, maintaining consistent alignment over thousands of cycles.
Format Changeover
Quickly adapt the stroke of a label applicator for different product sizes on a packaging line, reducing changeover downtime.
Is the Airtac SCJ32 Standard Cylinder SCJ32X450-20 the Right Cylinder?
Choose the SCJ32X450-20 when you need a compact 32 mm bore cylinder with the ability to dial in the stroke end precisely within a 20 mm window. If the 402 N push force at 0.5 MPa is insufficient, stepping up to the 40 mm bore SCJ40 series provides 628 N of push force. For applications requiring a fixed, non-adjustable stroke, the standard SC32 series offers a simpler, more cost-effective solution. A direct replacement must match the SCJ32 bore, 450 mm nominal stroke, 20 mm adjust range, PT port thread, and basic mounting configuration. For strokes of this length, ensure the load is guided externally to prevent excessive side-loading and rod bending.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-20)
- ✓ 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 SCJ32X450-20 FAQ
At the standard 0.5 MPa operating pressure, the push force is 402 N and the pull force is 345 N. The maximum push force at the 0.9 MPa upper pressure limit is 724 N. The force is identical to a fixed-stroke SC32 cylinder of the same bore.
A screw in the rear cap acts as an internal, adjustable stop for the piston. Turning the screw changes the retracted end position of the stroke, shortening it by up to 20 mm from the nominal 450 mm. It does not adjust the cylinder's force or speed, only the stroke end point.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SCJ Adjustable-Stroke Cylinders
Request a Quote for Airtac SCJ32 Standard Cylinder SCJ32X450-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.