Airtac SCJ32 Standard Cylinder SCJ32X65-20S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X65-20S 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, 65mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke65 mm
- Stroke adjust-20 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X65-20S
The SCJ32X65-20S is a compact adjustable-stroke cylinder delivering 402 N of push force at 0.5 MPa from a 32 mm bore. Its rear adjusting screw provides a 20 mm field-adjustable range, letting you fine-tune the stroke end position during commissioning or changeovers without swapping the unit. The 12 mm piston rod and PT1/8 ports keep it light and responsive for small automation cells.
This model includes a built-in magnet, enabling direct mounting of CMSG/DMSG/EMSG sensors for reliable end-of-stroke detection. With a 21 mm air cushion and a body length A of 182 mm, it fits neatly into tight spaces. The standard TPU seal and PT threads suit general-purpose pneumatic applications running on filtered air.
Airtac SCJ32 Standard Cylinder SCJ32X65-20S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X65-20S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 65 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 SCJ32X65-20S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×65 | 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 SCJ32X65-20S Is Used
Commissioning Fine-Tuning
The 20 mm adjustment screw lets technicians dial in the exact stop position during initial machine setup, compensating for small build tolerances without re-plumbing or replacing the cylinder.
Small-Part Ejector
Used on a packaging line to push lightweight products off a belt. The adjustable stroke allows operators to quickly change the ejection distance when switching between different product sizes.
Sensor-Controlled Clamping
With its built-in magnet, the SCJ32X65-20S works with CMSG sensors to provide precise position feedback. The adjustable stroke lets you set a gentle, repeatable clamping force on delicate electronic components.
Is the Airtac SCJ32 Standard Cylinder SCJ32X65-20S the Right Cylinder?
Choose the SCJ32X65-20S when you need a 32 mm bore with a nominal 65 mm stroke that can be shortened by up to 20 mm on the machine. If you require more force, step up to the 40 mm bore SCJ40 series, which provides 628 N of push at 0.5 MPa. For applications where the stroke never needs field adjustment, a fixed-stroke SC32 cylinder is a simpler, cost-effective alternative.
To replace this cylinder, match the 32 mm bore, 65 mm nominal stroke, 20 mm adjust range, PT port thread, and the -S magnet option. This model uses a basic mount; if you need a pivoting motion, consider the TC centre trunnion version. For strokes over 300 mm, evaluate side-load forces and add an external guide rail to protect the rod bearing.
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 SCJ32X65-20S FAQ
At 0.5 MPa, it delivers 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 adjusting screw sets the stroke end position but does not change the cylinder's force output.
A standard SC32 cylinder has a fixed stroke and cannot provide the field-adjustable end position. To maintain the same functionality, you must replace it with another SCJ32 cylinder that matches the 65 mm nominal stroke, 20 mm adjustment range, and -S magnet option.
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