Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-20 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 SAIJ32BX650-20
The AirTAC SAIJ32X650-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits a 630 to 650 mm usable travel window. Delivering 402 N of push force at 0.5 MPa, it utilizes a PT tapered G1/8 port and a 12 mm SUS304 stainless steel rod for superior corrosion resistance. The extruded aluminum barrel includes dual sensor grooves, allowing for straightforward position detection.
This adjustable-stroke design enables fine end-position tuning at commissioning without swapping the cylinder or adding external stops. The rear adjuster acts purely as a travel stop and works alongside the 27 mm variable air cushion at both ends to manage deceleration; it does not hold the load without live air. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-20 |
|---|---|
| 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 SAIJ32BX650-20
| 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 SAIJ32BX650-20 Is Used
Machine Changeover
Dial in the exact 630 to 650 mm end-stop during product size changes without disassembling the line or adding external shims.
Assembly Positioning
Fine-tune the retraction point at commissioning to guarantee precise placement of components on an automated assembly line.
Diversion Gates
Adjust the stroke length on the fly to accommodate varying package sizes moving through a conveyor sorting system.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-20 the Right Cylinder?
Choose this 32 mm bore if you need precise end-stop calibration within a 630-650 mm window, avoiding the rigid fixed stroke of a standard SAI cylinder. If your application requires greater thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Because the 650 mm stroke is substantial relative to the 12 mm rod diameter, an external guide is recommended to prevent side-load damage. For any load-holding requirements without continuous air pressure, consider the SAIL or BSAI series, as this adjuster is not a lock. Replacement requires matching the 32 mm bore, 650 mm stroke, 20 mm adjuster, PT G1/8 port, and ISO 15552 mounting footprint.
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 SAIJ32BX650-20 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At 0.7 MPa, the push force increases to 563 N.
The rear adjuster screw allows you to shorten the effective travel from the nominal 650 mm down to 630 mm. This stopper fine-tunes the end position during setup but does not lock the load without live air pressure.
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Covers non-human-caused product damage.
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