Airtac SCJ32 Standard Cylinder SCJ32X350-20
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X350-20 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, 350mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke350 mm
- Stroke adjust-20 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X350-20
The SCJ32X350-20 is a 32 mm bore double-acting single-rod cylinder with a rear adjusting screw that lets you shorten the stroke end by up to 20 mm without removing the cylinder. At 0.5 MPa it delivers 402 N push and 345 N pull, making it a capable mid-stroke actuator for light handling and assembly tasks where the final stop position needs field tuning.
With a 12 mm diameter rod, PT1/8 ports and a 21 mm air cushion, the cylinder decelerates the piston smoothly near stroke end. The body length A dimension is 182 mm plus the 350 mm nominal stroke, and the adjustable range allows operators to dial in the exact travel during commissioning or after wear take-up.
Airtac SCJ32 Standard Cylinder SCJ32X350-20 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X350-20 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 350 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 SCJ32X350-20
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×350 | 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 SCJ32X350-20 Is Used
Commissioning Fine-Tuning
During machine setup, the 20 mm rear screw lets technicians precisely set the stroke end for pick-and-place or pusher stops without swapping cylinders or machining hard stops.
Format Changeover
On packaging lines that switch between product sizes, the adjustable stroke quickly adapts the pusher or diverter travel to the new format, reducing downtime.
Wear Take-Up
In clamping or pressing fixtures, the screw compensates for jaw or pad wear over time, maintaining consistent contact pressure without reprogramming the machine.
Is the Airtac SCJ32 Standard Cylinder SCJ32X350-20 the Right Cylinder?
Step up to the 40 mm bore SCJ40X350-20 if your load exceeds the 402 N push force at 0.5 MPa—the 40 mm bore provides 628 N at the same pressure. For applications that never need stroke adjustment, the fixed-stroke SC32X350 saves cost and length. A direct replacement must match the 32 mm bore, 350 mm nominal stroke, 20 mm adjust range, PT thread, basic mounting and no magnet; confirm the F-SC32 mounting accessory if a bracket is added later. At 350 mm stroke, consider an external guide or a guided cylinder if the rod sees side load, to prevent 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 SCJ32X350-20 FAQ
At 0.5 MPa the push force is 402 N and the pull force is 345 N. At the maximum operating pressure of 0.9 MPa, push force reaches 724 N. Because it is a single-rod cylinder, push force is always greater than pull force.
Yes, if you need the adjustable stroke feature. The SCJ body is slightly longer to house the adjusting screw, so check the A dimension (182 mm + stroke) against your mounting space. Port threads, rod size and mounting accessories remain the same.
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