Airtac SCJ32 Standard Cylinder SCJ32X450-30
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X450-30 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 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-30 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X450-30
The SCJ32X450-30 brings field-adjustable stroke control to a 32 mm bore platform, delivering 402 N of push force at 0.5 MPa (724 N at 0.9 MPa). A rear-cap adjusting screw lets you shorten the stroke end by up to 30 mm without removing the cylinder, making it ideal for commissioning trials, format changeovers, and wear take-up on medium-reach linear tasks.
This single-rod, double-acting cylinder uses a 12 mm diameter piston rod and PT1/8 ports. The tie-rod body measures 182 mm (A dimension) and includes a 21 mm air cushion for end-of-stroke deceleration. It operates on 40 µm filtered air from 0.15 to 1.0 MPa and handles temperatures from -20 to +70 °C with its standard TPU seals.
Airtac SCJ32 Standard Cylinder SCJ32X450-30 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X450-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 450 mm |
| Stroke adjustment | Up to 30 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 SCJ32X450-30
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×450 | Nominal (maximum) stroke length in mm. |
| -30 | 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 SCJ32X450-30 Is Used
Commissioning & Setup
Dial in the exact end position during machine startup with the 30 mm rear adjuster. Eliminates the need to shim or reposition the cylinder body when fine-tuning sensor or gripper pick points.
Format Changeovers
Quickly adapt stroke length for different product sizes on packaging or sorting lines. The screw adjustment allows operators to change the push-off or stop position in seconds without tools.
Wear Compensation
Take up mechanical play in linkages or tooling over time. The adjustable stroke end lets you restore precise positioning as pads, stops, or gripper fingers wear, extending the service life of your tooling.
Is the Airtac SCJ32 Standard Cylinder SCJ32X450-30 the Right Cylinder?
Step up to the 40 mm bore (628 N push at 0.5 MPa) if the 402 N output of this 32 mm unit is marginal for your load. For applications that never need stroke adjustment, the fixed-stroke SC32X450 is a simpler, cost-effective alternative. When replacing an existing SCJ32X450-30, match the bore, 450 mm nominal stroke, 30 mm adjust range, PT port thread, and basic mounting style.
At a 450 mm stroke, the extended piston rod can experience side-load deflection. If your application imposes lateral forces, consider an external guide rail or a guided cylinder to protect the rod bearing and maintain alignment.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-30)
- ✓ 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 SCJ32X450-30 FAQ
At 0.5 MPa, the cylinder produces 402 N pushing and 345 N pulling. At the maximum operating pressure of 0.9 MPa, the push force reaches 724 N. The theoretical force at 1.0 MPa is 82 kgf. Because it is a single-rod cylinder, the push force is always greater than the pull force.
Only if you need the adjustable stroke feature. The SCJ adds a rear adjusting screw that shortens the stroke end by up to 30 mm, making the body slightly longer than a fixed-stroke SC. If your mounting space allows for this extra length and you require field adjustability, the SCJ is a direct functional upgrade for the same bore and stroke.
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