Airtac Adjustable Cylinder SAIJ32 SAIJ32AX650-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX650-20 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 SAIJ32AX650-20
The AirTAC SAIJ32X650-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 630 to 650 mm usable travel window, allowing you to dial back the end position by up to 20 mm during commissioning without adding external stops. It delivers 402 N of push force and 345 N of pull force at 0.5 MPa.
This unit uses a SUS420J2 stainless steel rod for corrosion resistance and carries a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX650-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX650-20 |
|---|---|
| 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 SAIJ32AX650-20
| 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 SAIJ32AX650-20 Is Used
Machine Changeover
Fine-tune the 630 to 650 mm travel endpoint on the fly during product size transitions without swapping hardware.
Variable End Stops
Adjust the retract position precisely during line setup to accommodate varying package dimensions.
Actuator Tuning
Trim the stroke by up to 20 mm to perfect the timing and positioning of assembly actuators.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX650-20 the Right Cylinder?
Choose this 32 mm bore when you need precise end-position tuning on a 650 mm stroke but only moderate force. If your application requires more thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Because the stroke is 650 mm, the 12 mm rod needs external guidance to prevent excessive side-load wear on the seals.
The rear adjuster acts purely as a travel stop and works with the air cushions to decelerate the piston; it does not hold the load without live air. For load-holding without pressure, select a SAIL or BSAI cylinder instead. This model is dimensionally interchangeable per ISO 15552.
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 SAIJ32AX650-20 FAQ
A rear adjusting screw lets you shorten the effective travel from 650 mm down to 630 mm. This creates a 20 mm tuning window to set the exact retract end position during commissioning without changing the cylinder.
At 0.5 MPa operating pressure, this 32 mm bore cylinder generates 402 N of push force and 345 N of pull force. It can deliver up to 724 N of push force at 0.9 MPa.
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