Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-40S 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 SAIJ32BX300-40S
The AirTAC SAIJ32X300-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 300 mm stroke that can be fine-tuned backward by up to 40 mm, yielding a precise 260-300 mm usable travel window for product changeovers without external stops. Delivering 402 N of push force at 0.5 MPa, it utilizes a PT tapered port thread and a SUS304 stainless steel rod for superior corrosion resistance.
This model includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors, which seat neatly into the sensor grooves on both sides of the extruded aluminum barrel. The rear adjuster acts strictly as a travel stop to set the end position and relies on the integrated air cushions for deceleration; it does not lock the load without continuous air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-40S |
|---|---|
| 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 SAIJ32BX300-40S
| 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 SAIJ32BX300-40S Is Used
Product Changeover
Dial in the 260-300 mm travel window during line changeovers to accommodate different package lengths without swapping out the entire cylinder.
End-Position Tuning
Fine-tune the retract end-stop during commissioning to perfect the seating force of a 402 N assembly press without adding external shims.
Variable Diverter Stroke
Adjust the stroke length on a conveyor sorting arm to handle varying product widths on the fly, ensuring accurate routing without retooling.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-40S the Right Cylinder?
Choose this 32 mm bore when an application requires 402 N push force at 0.5 MPa but demands flexibility in the final end-stop position during machine setup. If your process requires less force, stepping down is not an option in this size range, but stepping up to a 40 mm bore yields 628 N. An adjustable stroke is favored over a fixed SAI cylinder when you need on-the-fly tuning to accommodate varying product sizes, rather than machining custom spacers.
Because this cylinder features a 300 mm stroke, the 12 mm rod should be guided externally if the load imposes significant side-loading, as long unsupported strokes accelerate seal wear. To hold a load securely without live air pressure, you must integrate an external pilot-operated check valve or select a SAIL (air-released lock) or BSAI (clamp-lock) cylinder, as the SAIJ adjuster is not a braking device. For an exact ISO 15552 replacement match, confirm the 32 mm bore, 300 mm stroke, 40 mm adjustment, PT ports, SUS304 rod, and -S magnet, noting the mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ32BX300-40S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At its maximum 1.0 MPa pressure, it can deliver up to 82 kgf.
The rear adjuster screw allows you to shorten the effective stroke by up to 40 mm from the nominal 300 mm, creating a 260-300 mm usable travel window. It functions as a mechanical stop to set the end position and is not a lock to hold the load without air pressure.
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