Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-75S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 400mm 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
- Stroke400 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-75S
The AirTAC SAIJ32X400-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 325-400 mm usable travel window from its 400 mm nominal stroke. It delivers 402 N of push force and 345 N of pull force at 0.5 MPa, utilizing a 12 mm rod with an M10x1.25 thread. The SUS304 stainless steel rod (option B) provides excellent corrosion resistance for harsher environments.
This model includes a built-in magnet (-S) for use with AirTAC CMSE reed and DMSE solid-state sensors fitted into the dual-side extruded aluminum barrel grooves. The rear adjustment screw acts purely as a mechanical stop to dial in the retract end position during commissioning; it is not a lock and will not hold a load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-75S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 400 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 SAIJ32BX400-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×400 | 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 SAIJ32BX400-75S Is Used
Product Changeover Tuning
Dial in the exact retract stop for new package sizes on a packaging line without machining new spacers or replacing the cylinder.
Variable End-Stop Machining
Fine-tune the clamping position during machine commissioning to accommodate varying material thicknesses on the fly.
Adjustable Ejector Stroke
Set the precise ejection distance for parts of different lengths, using the 325-400 mm window to prevent over-travel.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-75S the Right Cylinder?
Choose this 32 mm bore adjustable-stroke cylinder when you need precise end-position tuning during machine setup or product changeover without swapping out the entire unit. If your application requires more thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. For load-holding requirements without continuous air pressure, this cylinder is insufficient—the adjuster only sets travel limits, so you should look at the SAIL or BSAI series instead.
This SAIJ32X400-75-S is dimensionally interchangeable with ISO 15552 cylinders and uses a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). It features PT tapered ports and operates at speeds of 30-800 mm/s. Because the 400 mm stroke is relatively long for a 32 mm bore, the 12 mm rod and M10x1.25 thread have limited side-load capacity, so an external guide is strongly recommended to prevent rod binding.
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 SAIJ32BX400-75S 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 pressure of 1.0 MPa, it delivers up to 82 kgf.
The rear adjuster screw lets you shorten the effective stroke by up to 75 mm, creating a usable travel window of 325-400 mm from the 400 mm nominal stroke. This allows precise end-position tuning at commissioning without adding external stops.
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