Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 300mm 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
- Stroke300 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-40
The AirTAC SAIJ32X300-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster, enabling a usable travel window of 260-300 mm for precise end-position tuning. It delivers 402 N of push force at 0.5 MPa and utilizes a SUS304 stainless steel rod for superior corrosion resistance. The integrated PT tapered port threads ensure a reliable, leak-free pneumatic connection.
Equipped with variable air cushions at both ends, this model allows you to fine-tune deceleration during commissioning without relying on external stops. The extruded aluminum barrel includes dual-side sensor grooves, and because no magnet is specified, position sensing can be added later if needed.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 300 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 SAIJ32BX300-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×300 | 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 SAIJ32BX300-40 Is Used
Machine Setup Tuning
Dial in the exact 260-300 mm end position during commissioning without swapping cylinders or adding external stops.
Product Changeover
Quickly adjust the stroke to accommodate different product sizes on a single production line.
Precision Positioning
Use the rear stopper to fine-tune the travel end, relying on the variable air cushion to decelerate the load smoothly.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-40 the Right Cylinder?
Choose this 32 mm bore if your application requires up to 402 N of push force at 0.5 MPa; stepping down is not an option here, but stepping up to a 40 mm bore yields 628 N if your load increases. The adjustable stroke is ideal for machine setups requiring variable end stops or product-size changeovers, offering more flexibility than a fixed-stroke SAI cylinder. For strokes of 300 mm or more, the 12 mm rod diameter is subject to greater side loads, so an external guide rail is recommended to prevent rod binding.
This cylinder uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, 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 SAIJ32BX300-40 FAQ
At an operating pressure of 0.5 MPa, the 32 mm bore 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 allows you to shorten the effective stroke by up to 40 mm. This creates a usable travel window between 260 mm and 300 mm, letting you fine-tune the end position without modifying the cylinder mounting.
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