Airtac SCJ32 Standard Cylinder SCJ32X90-30S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X90-30S 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, 90mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke90 mm
- Stroke adjust-30 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X90-30S
The SCJ32X90-30S is a double-acting, single-rod pneumatic cylinder with a rear adjusting screw that provides up to 30 mm of field-adjustable stroke reduction. This allows the effective stroke end to be fine-tuned from 60 mm to the nominal 90 mm without replacing the cylinder, making it ideal for commissioning and format changeovers on compact machinery. At 0.5 MPa, it delivers 402 N of push force and 345 N on the pull stroke.
This model includes a built-in magnet (-S suffix), enabling direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the tie-rod barrel for reliable end-of-stroke detection. The 32 mm bore features a 12 mm piston rod, PT1/8 ports, and a 21 mm air cushion for smooth deceleration. The body length A(SCJ) is 182 mm, and the operating speed range is 30-800 mm/s.
Airtac SCJ32 Standard Cylinder SCJ32X90-30S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X90-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 90 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 SCJ32X90-30S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×90 | 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 SCJ32X90-30S Is Used
Commissioning & Setup
The 30 mm adjustable stroke lets technicians dial in the exact retract position during initial machine setup without swapping cylinders or machining custom stops, speeding up production line commissioning.
Small-Part Eject & Sorting
Fine-tune the push stroke end for ejecting or sorting small components on a conveyor. The built-in magnet provides sensor feedback to confirm each cycle, ensuring consistent part handling.
Wear Compensation
In clamping or pressing fixtures, the stroke-end screw can be adjusted over time to compensate for tooling or pad wear, maintaining consistent clamping force and position without reprogramming the machine.
Is the Airtac SCJ32 Standard Cylinder SCJ32X90-30S the Right Cylinder?
Choose the SCJ32X90-30S when you need a compact, adjustable-stroke actuator with sensor-ready position feedback. If the 402 N push force at 0.5 MPa is marginal, stepping up to the 40 mm bore provides 628 N. For applications where the stroke is fixed and never needs field adjustment, the standard SC32X90 cylinder is a simpler, cost-effective alternative. This adjustable-stroke unit is a direct replacement for another AirTAC SCJ32X90-30S cylinder with PT ports and a magnet.
For this 90 mm stroke, side-loading is generally not a primary concern, but always ensure the load is guided and aligned axially with the rod to prevent premature seal and bearing wear. If the application requires a pivoting movement, consider adding an FA front flange or LB foot mount from the SCJ accessory range.
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 SCJ32X90-30S FAQ
At the standard operating pressure of 0.5 MPa, the cylinder provides a push force of 402 N and a pull force of 345 N. The maximum push force at 0.9 MPa is 724 N. The adjustable-stroke screw does not alter the cylinder's force output.
A fixed-stroke SC32 cylinder will fit the same mounting and port connections, but you will lose the field-adjustable stroke feature. The SCJ is a direct replacement only for another SCJ cylinder with the same bore, nominal stroke, and 30 mm adjustment range. Using an SC would require an external hard stop to achieve a similar, but less convenient, stroke adjustment.
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