Airtac SCJ32 Standard Cylinder SCJ32X90-50
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X90-50 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, 90mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke90 mm
- Stroke adjust-50 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X90-50
The SCJ32X90-50 is a double-acting, single-rod tie-rod cylinder with a 50 mm rear adjusting screw, letting you fine-tune the stroke end position on the fly without swapping the unit. With a 32 mm bore and 12 mm rod, it delivers 402 N of push force at 0.5 MPa and up to 724 N at the 0.9 MPa maximum operating pressure, making it a precise workhorse for light automation tasks.
The body length A(SCJ) is 182 mm, and the integrated air cushion (21 mm) decelerates the piston smoothly at stroke end. The PT1/8 port and M10x1.25 rod thread keep connections compact, while the 50 mm adjustment range is ideal for commissioning trials, format changeovers, or taking up mechanical wear without disrupting the machine layout.
Airtac SCJ32 Standard Cylinder SCJ32X90-50 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X90-50 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 90 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 SCJ32X90-50
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×90 | 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 SCJ32X90-50 Is Used
Commissioning & Setup
The 50 mm rear screw allows technicians to dial in the exact stroke end-stop during initial machine setup, eliminating the need for trial-and-error with fixed hard stops.
Small-Part Diverter Gates
Adjust the push stroke on a packaging line diverter to perfectly align with different product widths, all from the rear cap without dismantling the conveyor.
Wear Compensation in Clamps
In a repetitive clamping fixture, the adjustable stroke can be periodically shortened to compensate for pad wear, maintaining consistent clamping pressure over time.
Is the Airtac SCJ32 Standard Cylinder SCJ32X90-50 the Right Cylinder?
Choose the SCJ32 when you need a compact, field-adjustable cylinder for light push/pull tasks. If you require more force, step up to the SCJ40, which provides 628 N of push at 0.5 MPa. For applications where the stroke is fixed and never needs field tuning, the standard SC32 fixed-stroke cylinder is a simpler, cost-effective alternative. A direct replacement must match the 32 mm bore, 90 mm nominal stroke, 50 mm adjust range, PT1/8 ports, and basic mounting. If your application involves significant side loads, consider adding an external guide rail, as the 12 mm rod is not designed to bear high lateral forces.
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 SCJ32X90-50 FAQ
At the standard 0.5 MPa operating pressure, the cylinder delivers 402 N of push force and 345 N of pull force. The push force increases to 724 N at the maximum operating pressure of 0.9 MPa.
Yes, if you need the added benefit of field-adjustable stroke. The SCJ32X90-50 is dimensionally compatible with the SC32 series mounting accessories (FA, LB, TC) and uses the same PT1/8 ports. Ensure the 50 mm adjustment range on the rear cap is accounted for in your machine envelope.
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