Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-40S 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 SAIJ32BX650-40S
The AirTAC SAIJ32X650-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the end-of-travel position without adding external stops. It provides a usable travel window of 610 to 650 mm, giving you 40 mm of precise retraction control during commissioning or product changeovers. Delivering 402 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod for superior corrosion resistance and uses a PT tapered port for tight pneumatic sealing.
This extruded aluminum barrel includes dual sensor grooves compatible with CMSE reed and DMSE electronic switches, thanks to the integrated -S magnet. The M10x1.25 rod thread and 27 mm cushion stroke help manage deceleration, though the adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-40S |
|---|---|
| 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 SAIJ32BX650-40S
| 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 SAIJ32BX650-40S Is Used
Machine Changeover
Dial in the exact 610 to 650 mm end-stop during product size changes without swapping cylinders or re-engineering external stop blocks.
Position Calibration
Fine-tune the retract distance by up to 40 mm at commissioning to perfect tooling alignment on automated assembly equipment.
Packaging End-Stops
Adjust the stroke on the fly to accommodate varying package lengths on a packaging line while maintaining ISO 15552 mounting compatibility.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX650-40S the Right Cylinder?
Choose this 32 mm bore adjustable cylinder when your setup requires exact end-position tuning across a 610-650 mm travel window, avoiding the need to physically swap out a fixed-stroke SAI cylinder. If your application needs 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 relatively long for a 12 mm rod, adding an external guide is recommended to prevent excessive side-loading and rod deflection.
For ISO 15552 dimensionally interchangeable replacements, match the 32 mm bore, 650 mm nominal stroke, 40 mm adjustment range, PT G1/8 port, and -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Remember that the rear adjuster and air cushions decelerate the piston but do not function as a lock; for true load-holding without live air, consider the SAIL or BSAI series.
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 SAIJ32BX650-40S FAQ
The rear adjusting screw acts as an external stopper that lets you shorten the effective stroke by up to 40 mm. This creates a usable travel window of 610 to 650 mm, allowing precise end-position tuning at commissioning without replacing the cylinder.
At a 0.5 MPa operating pressure, the SAIJ32X650-40-S provides 402 N of push force and 345 N of pull force. It can reach up to 724 N of push force at 0.9 MPa.
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