Airtac Adjustable Cylinder SAIJ32 SAIJ32BX105-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX105-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 105mm 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
- Stroke105 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX105-20
The AirTAC SAIJ32X105-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 85 to 105 mm. Fitted with a SUS304 stainless steel rod and PT tapered ports, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa. This adjustable design allows you to fine-tune the retract end position directly at the machine without swapping out the entire cylinder.
Because this is a compact 32 mm bore, the 12 mm rod and M10x1.25 thread handle moderate side loads, though long unsupported strokes still require an external guide. The extruded aluminum barrel features sensor grooves on both sides for CMSE reed or DMSE electronic switches, though this specific SKU is configured without a magnet. The rear stopper acts purely as a travel end deceleration device and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX105-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX105-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 105 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 SAIJ32BX105-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×105 | 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 SAIJ32BX105-20 Is Used
Machine Setup Commissioning
Dial in the exact 85 to 105 mm travel during initial machine build, allowing precise end-position tuning without machining custom spacers.
Product Size Changeover
Quickly adapt the retract stop for varying product lengths on a packaging line, trimming the stroke by up to 20 mm in seconds.
Variable End-Stop Forming
Adjust the mechanical stop position for light-duty forming or pressing tasks where the final stroke length must be tweaked per workpiece.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX105-20 the Right Cylinder?
Select this 32 mm bore model when your application requires 402 N of push force at 0.5 MPa and you need the flexibility to dial in the exact end-of-stroke position during commissioning or product changeovers. If your process demands less force, stepping down is not an option in the ISO 15552 range below 32 mm, but if you need significantly more power, the 40 mm bore provides 628 N of push force at 0.5 MPa. The rear adjuster is a mechanical stop, not a lock; for true load-holding without live air pressure, consider the SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 105 mm nominal stroke, 20 mm adjustment range, PT port thread, and standard mounting interface. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, but omits FB, CA, CB, and CR. For any stroke of 300 mm or more, an external guide is recommended to manage side loads, though this 105 mm unit is well within standard unsupported limits.
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 SAIJ32BX105-20 FAQ
The rear adjuster screw allows you to shorten the nominal 105 mm stroke by up to 20 mm, giving an effective travel window of 85 to 105 mm. This lets you fine-tune the end position at commissioning without adding external stops.
At 0.5 MPa operating pressure, the SAIJ32X105-20 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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