Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 650mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ32 mm
- Stroke650 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-50S
The AirTAC SAIJ32X650-50-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 600-650 mm usable travel window, allowing you to dial back the 650 mm nominal stroke by up to 50 mm during machine setup or product changeover. In the 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa, making it suitable for light-duty positioning tasks.
This SKU is built with a SUS304 stainless steel rod for corrosion resistance and includes a magnet for position sensing. The extruded aluminum barrel features sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches. It uses a PT tapered port and offers adjustable air cushions at both ends to manage end-of-stroke impact.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 650 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| 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, 27 mm |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
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 | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×650 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-50S Is Used
Variable End-Stop Tuning
Dial in the exact 600-650 mm retraction point during commissioning without swapping out the entire cylinder or fabricating custom external stopper blocks.
Product Size Changeover
Quickly adapt a packaging line to different carton lengths by turning the rear screw, shifting the end-of-stroke position to accommodate new product dimensions.
Light-Duty Positioning
Leverage the 402 N push force at 0.5 MPa for delicate handling and routing tasks where a fixed-stroke SAI cylinder would be too rigid for fine adjustments.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-50S the Right Cylinder?
Choose this 32 mm bore adjustable cylinder when you need precise end-position tuning without adding external stops. If your application requires higher thrust, stepping up to a 40 mm bore increases the 0.5 MPa push force to 628 N. Conversely, if you need less force in a tighter space, a smaller option would reduce the output. Because the 650 mm stroke is long relative to the 32 mm bore and 12 mm rod, an external guide is recommended to prevent excessive side loading and rod deflection.
The rear adjuster on this SAIJ model acts strictly as a mechanical stop to set the travel end, not as a lock. It will not hold a load without continuous live air pressure. For true load-holding requirements without pneumatic pressure, consider the AirTAC SAIL pneumatic lock or BSAI clamp-lock series. To match this cylinder for an ISO 15552 replacement, verify the 32 mm bore, 650 mm stroke, 50 mm adjustment, PT G1/8 port, and the -S magnet option.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-50S FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 50 mm, providing a usable travel window of 600 to 650 mm. It functions as a mechanical stop to set the end position and does not lock the load without live air pressure.
At 0.5 MPa, the SAIJ32X650-50-S generates 402 N of push force and 345 N of pull force. At the maximum operating pressure of 1.0 MPa, it achieves a push force of 724 N.
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