Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-20 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 SAIJ32BX400-20
The AirTAC SAIJ32X400-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 380-400 mm usable travel window. Delivering 402 N of push force at 0.5 MPa, it utilizes a SUS304 stainless steel rod for enhanced corrosion resistance and features PT tapered port threading.
The rear adjustment screw acts as a mechanical stop to fine-tune the retract end position during commissioning without adding external stops. It uses a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-20 |
|---|---|
| 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 SAIJ32BX400-20
| 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 SAIJ32BX400-20 Is Used
Machine Changeover
Dial in the exact 380-400 mm end-stop during product size changeovers without swapping the entire cylinder or adding shims.
End-Position Tuning
Fine-tune the retract position at commissioning to compensate for mechanical tolerance stack-up across the tooling line.
Alignment Compensation
Adjust the travel window on the fly to perfectly align parts on a conveyor without repositioning the cylinder mount.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-20 the Right Cylinder?
Choose this 32 mm bore when 402 N of thrust at 0.5 MPa is sufficient, stepping down from a 40 mm bore that yields 628 N. An adjustable stroke is ideal for variable end-stops during machine changeover, unlike a fixed-stroke SAI cylinder. Because the rear adjuster and air cushions only decelerate travel, a SAIL or BSAI lock is required for load-holding without live air. For this 400 mm stroke, an external guide is recommended to prevent rod side-loading.
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 SAIJ32BX400-20 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 lets you mechanically shorten the 400 mm nominal stroke by up to 20 mm, creating a 380-400 mm usable travel window. It acts as a physical stop to fine-tune the end position and does not lock the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.