Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 425mm 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
- Stroke425 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-75
The AirTAC SAIJ32X425-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 350 to 425 mm. Delivering 563 N of push force at 0.7 MPa, it utilizes a 12 mm SUS304 stainless steel rod with an M10x1.25 thread. The PT tapered porting is G1/8 and the unit operates at speeds of 30-800 mm/s.
This model omits the FB, CA, CB, and CR mounts, offering a reduced interface set of Basic, FA, LB, TC, FTC, TCM1, and TCM2. The external rear screw acts purely as a travel stop to fine-tune end positions during commissioning without adding external stops. It is not a locking device, so holding loads without live air requires a SAIL or BSAI cylinder.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 425 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 SAIJ32BX425-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×425 | 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 SAIJ32BX425-75 Is Used
Machine Setup & Changeover
Dial in the exact retract distance within the 350-425 mm window during product line changeovers without swapping out the entire cylinder.
Variable End-Stop Tuning
Use the rear adjuster screw to fine-tune the end position at commissioning, compensating for mechanical tolerance stack-up without external stop blocks.
Assembly Line Positioning
Provides 402 N of push force at 0.5 MPa for positioning lighter workpieces along an assembly conveyor with adjustable retract limits.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-75 the Right Cylinder?
Choose this 32 mm bore when you need 402 N of thrust at 0.5 MPa and a highly flexible 75 mm adjustment range to dial in retract positions on the fly. If your application requires greater force, stepping up to the 40 mm bore yields 628 N at 0.5 MPa. Because the nominal stroke is 425 mm, the 12 mm rod will experience deflection under side loads; always guide the load externally to prevent rod binding.
To match this ISO 15552 interchangeable cylinder, specify a 32 mm bore, 425 mm stroke, 75 mm adjustment, PT G1/8 ports, SUS304 rod material, and no magnet. Select a fixed-stroke SAI cylinder if end-position tuning is unnecessary, or choose a SAIL cylinder if you need true pneumatic load holding without live air pressure.
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 SAIJ32BX425-75 FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 75 mm, providing a usable travel window of 350 to 425 mm. It acts as a mechanical stop and does not lock the load without live air pressure.
At an operating pressure of 0.7 MPa, the SAIJ32X425-75 provides 563 N of push force and 345 N of pull force at 0.5 MPa. The maximum thrust is 82 kgf at 1.0 MPa.
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