Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 50mm 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
- Stroke50 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-20
The AirTAC SAIJ32X50-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 50mm stroke that can be dialed back by up to 20mm, giving a usable travel window of 30-50mm for precise end-position tuning. The 32mm bore delivers 402N of push force at 0.5MPa, making it suited for lighter-duty tasks.
This SKU features a SUS304 stainless steel rod for corrosion resistance and uses a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, compatible with AirTAC CMSE reed and DMSE electronic sensors if a magnet is added later. The rear adjuster acts purely as a travel stop to decelerate the piston, not as a lock to hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 50 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 SAIJ32BX50-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×50 | 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 SAIJ32BX50-20 Is Used
Machine Changeover
Dial in the 30-50mm travel window during product size changes without replacing the cylinder or adding external stops.
End-Position Tuning
Fine-tune the retract end-position at commissioning to absorb mechanical tolerances and ensure exact placement.
Light Assembly Automation
Leverage the 402N push force at 0.5MPa for positioning small parts on conveyors and assembly fixtures.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-20 the Right Cylinder?
Choose this 32mm bore adjustable cylinder when your machine setup requires variable end-stops or product-size changeovers without physically swapping components. If your application demands higher thrust, stepping up to the 40mm bore yields 628N of push force at 0.5MPa. Conversely, lighter loads can use smaller alternatives. The SAIJ series uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. Because the stroke is under 300mm, side-load stress on the 12mm rod is minimal, though external guides are still recommended for heavy lateral loads.
For a drop-in ISO 15552 replacement, match the 32mm bore, 50mm stroke, 20mm adjustment range, PT port thread, and SUS304 rod material. Remember that the rear screw is a stop, not a brake; if you need true fail-safe load holding without live air, select the SAIL (air-released lock) or BSAI (clamp-lock) cylinder series instead.
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 SAIJ32BX50-20 FAQ
At 0.5MPa operating pressure, this 32mm bore cylinder provides 402N of push force and 345N of pull force. It can reach up to 724N of push force at 0.9MPa.
The rear adjuster screw lets you shorten the 50mm nominal stroke by up to 20mm, creating a 30-50mm usable travel window. It functions as a mechanical stop to set the end position and does not lock the load without air pressure.
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