Airtac SCJ32 Standard Cylinder SCJ32X350-20S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X350-20S 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 SCJ32X350-20S
The SCJ32X350-20S is a double-acting, single-rod pneumatic cylinder that puts fine stroke tuning directly on the machine. A rear-cap adjusting screw provides up to 20 mm of stroke-end adjustment, letting operators dial in the exact stopping position without swapping cylinders or adding external hard stops. This model includes a built-in magnet, so CMSG/DMSG/EMSG sensors clamp directly onto the tie-rod barrel for reliable end-of-stroke or mid-stroke position sensing.
With a 32 mm bore, it delivers 402 N of push force at 0.5 MPa and up to 724 N at the maximum operating pressure of 0.9 MPa. The 12 mm diameter piston rod and PT1/8 ports are standard for this bore, and the body length A(SCJ) is 182 mm. The adjustable cushion decelerates the piston smoothly, and the 350 mm nominal stroke is well within the 1000 mm maximum standard stroke for bore 32.
Airtac SCJ32 Standard Cylinder SCJ32X350-20S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X350-20S |
|---|---|
| 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 SCJ32X350-20S
| 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 SCJ32X350-20S Is Used
Commissioning & Setup
The 20 mm adjustment range allows technicians to fine-tune the actuator's end stop during machine commissioning without mechanical modifications, saving hours of setup time on packaging or assembly lines.
Product Changeover
Quickly adapt the cylinder stroke for different product sizes on a conveyor diverter or sorting gate. The rear screw adjustment makes format changes a tool-free, one-minute task directly on the line.
Sensed End-of-Stroke
The integrated magnet works with CMSG/DMSG sensors to provide precise, non-contact position feedback. This is ideal for confirming the adjusted stroke position in automated sequences where a mechanical stop alone is insufficient.
Is the Airtac SCJ32 Standard Cylinder SCJ32X350-20S the Right Cylinder?
Choose the SCJ32X350-20S when you need a compact, field-adjustable stroke in a light automation task. If 402 N of push force at 0.5 MPa is marginal, stepping up to a 40 mm bore SCJ40 series provides 628 N of push, a noticeable 56% increase. For applications where the stroke is fixed after commissioning and the adjustment screw is not needed, the standard SC32 fixed-stroke cylinder is a simpler, cost-effective alternative. As a direct replacement, match the 32 mm bore, 350 mm nominal stroke, 20 mm adjustment range, PT port thread, and the -S magnet option. For strokes of 300 mm or more, verify that the rod is adequately supported against side loads; if the load is not guided externally, consider adding an external guide or switching to a guided cylinder to prevent rod 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 SCJ32X350-20S FAQ
At 0.5 MPa, the cylinder provides 402 N of push force and 345 N of pull force. The maximum push force at the 0.9 MPa operating limit is 724 N. The pull force is lower because the 12 mm piston rod reduces the effective piston area on the return stroke.
A rear-cap screw sets the physical stroke end, shortening the 350 mm nominal stroke by up to 20 mm. It is a direct dimensional replacement for another SCJ32 cylinder with the same bore, stroke, and adjustment range. It cannot be directly replaced by a fixed-stroke SC32 unless the adjustment feature is no longer required and the exact final stroke length is known.
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