Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-30
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-30 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 SAIJ32BX400-30
The AirTAC SAIJ32X400-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 370 to 400 mm, allowing you to dial back the extend position by up to 30 mm during commissioning without adding external stops. Operating at 0.5 MPa, it delivers 402 N of push force and 345 N of pull force.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. The rear adjuster acts purely as a mechanical stop to fine-tune the end position, so it does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-30 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-30 |
|---|---|
| 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 SAIJ32BX400-30
| 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 SAIJ32BX400-30 Is Used
Machine Changeovers
Quickly adjust the extend end-position by up to 30 mm during product size changeovers without replacing the cylinder or repositioning external hard stops.
Variable End Stops
Dial in the exact 370-400 mm travel window required for pushing different carton sizes or indexing parts on a moving conveyor line.
Commissioning Fine-Tuning
Perfect the final extend position during initial machine setup, compensating for mechanical tolerances by trimming the stroke back precisely.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-30 the Right Cylinder?
Choose this 32 mm bore when your application requires precise end-position tuning over a long 400 mm travel. If your process needs more force, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. The adjustable stroke is ideal for product changeovers, letting you shift the end stop by up to 30 mm rather than swapping the cylinder. Because the stroke is 400 mm, the 12 mm rod requires an external guide to prevent excessive side-loading and premature wear.
For a direct ISO 15552 replacement, match the 32 mm bore, 400 mm nominal stroke, 30 mm adjustment range, PT port thread, and SUS304 rod material. Note that SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. If your process requires true load-holding without continuous air pressure, consider the SAIL lock or BSAI clamp-lock series instead of relying on the rear stopper.
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 SAIJ32BX400-30 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 1.0 MPa pressure, it delivers up to 82 kgf.
The rear adjuster screw allows you to shorten the effective travel from the nominal 400 mm down to 370 mm. This mechanical stop fine-tunes the end position at commissioning but does not lock or hold the load without live air pressure.
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