Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-75 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 SAIJ32BX300-75
The AirTAC SAIJ32X300-75 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 32 mm bore and a 300 mm nominal stroke, yielding a usable travel window of 225 to 300 mm. The external adjusting screw allows you to trim the retract position by up to 75 mm during commissioning or product changeovers without swapping the cylinder or adding external stops. This profile cylinder delivers 402 N of push force at 0.5 MPa and operates at speeds of 30-800 mm/s.
This SKU is built with a SUS304 stainless steel rod (option B) for superior corrosion resistance and features PT tapered port threads with a G1/8 air supply. The integrated variable air cushions at both ends work alongside the rear stopper to decelerate the load smoothly. Note that the adjuster is a travel stop, not a lock; the cylinder cannot hold a load without live air pressure. For position holding, consider an external pilot-operated check valve or the SAIL lock series.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-75 |
|---|---|
| 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 SAIJ32BX300-75
| 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 SAIJ32BX300-75 Is Used
Machine Changeover
Quickly dial in the 225-300 mm travel window during product size changes without bolting on physical spacers or swapping out the entire actuator.
Variable End-Stop Diverter
Provides an adjustable retract position for sorting or diverting items of varying sizes on a conveyor line, allowing precise end-position tuning at commissioning.
Fixture Positioning
Sets exact clamping depths on machining fixtures where the raw material thickness might vary slightly, using the rear screw to fine-tune the final stroke.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-75 the Right Cylinder?
Choose this 32 mm bore if your application requires around 402 N of push force at 0.5 MPa. If your setup demands less force, stepping down is not an option below 32 mm in this series, but stepping up to a 40 mm bore increases push force to 628 N. The adjustable-stroke design is ideal for machines that require variable end-stops or frequent product-size changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot provide. When replacing an ISO 15552 cylinder, match the 32 mm bore, 300 mm stroke, PT port, and mounting style.
Because this model has a 300 mm stroke, the 12 mm rod diameter and M10x1.25 rod thread may be subjected to increased side loads if the load is unsupported. For strokes of 300 mm or more, always use an external guide rail to prevent rod binding and premature seal wear. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
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 SAIJ32BX300-75 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 the maximum rated pressure of 1.0 MPa, it delivers up to 82 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from its 300 mm nominal length down to 225 mm. It only sets the travel end and does not lock the load without live air pressure.
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