Airtac SCJ32 Standard Cylinder SCJ32X80-50
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X80-50 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, 80mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke80 mm
- Stroke adjust-50 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X80-50
The SCJ32X80-50 is a 32 mm bore double-acting, single-rod pneumatic cylinder with a rear adjusting screw that lets you shorten the effective stroke end by up to 50 mm in the field. At 0.5 MPa it delivers 402 N push and 345 N pull, making it a compact workhorse for light positioning and clamping tasks where the final stop point needs dialling in during commissioning.
This tie-rod cylinder has a 12 mm rod, PT1/8 ports, and an M10x1.25 rod thread. The adjustable air cushion decelerates the piston over the last 21 mm of travel, and the body length A(SCJ) is 182 mm. The 80 mm nominal stroke is well within the 1000 mm maximum standard stroke for this bore.
Airtac SCJ32 Standard Cylinder SCJ32X80-50 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X80-50 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 80 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 SCJ32X80-50
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×80 | 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 SCJ32X80-50 Is Used
Commissioning Fine-Tuning
Adjust the rear screw during machine setup to dial in the exact push stroke for a label applicator or small part ejector, eliminating the need to shim or reposition the cylinder body.
Wear Take-Up on Stops
In repetitive clamping fixtures, use the 50 mm adjustment range to compensate for pad wear or workpiece tolerance drift over time without stopping production to replace hard stops.
Format Changeover
Quickly reset the stroke end position when a packaging line switches between product sizes, using the SCJ32 as an adjustable end-stop for a diverter gate or flap.
Is the Airtac SCJ32 Standard Cylinder SCJ32X80-50 the Right Cylinder?
Choose the SCJ32 when you need a compact adjustable-stroke actuator with 402 N of push force at 0.5 MPa. If your application demands more force, step up to the 40 mm bore SCJ40, which provides 628 N push at the same pressure. For a simpler, lower-cost installation where the stroke length is fixed and will never need field adjustment, the standard SC32 fixed-stroke cylinder is a direct alternative.
A direct replacement must match the 32 mm bore, 80 mm nominal stroke, 50 mm adjust range, PT1/8 ports, and basic mounting. If the original cylinder had a magnet, order the -S variant. For strokes of 300 mm or more, consider an external guide to protect the 12 mm rod from side loads.
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 SCJ32X80-50 FAQ
At 0.5 MPa, the push force is 402 N and the pull force is 345 N. The maximum push force at the 0.9 MPa operating limit is 724 N. Because it is a single-rod cylinder, the push force is always greater than the pull force.
A screw in the rear cap sets the retracted stroke end position. Turning the screw lets you shorten the stroke by up to 50 mm from the 80 mm nominal maximum. It adjusts the mechanical stop point only; it does not change the cylinder's force or speed.
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