Airtac Adjustable Cylinder SAIJ32 SAIJ32BX40-30S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX40-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 40mm 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
- Stroke40 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX40-30S
The AirTAC SAIJ32X40-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 40 mm stroke that can be dialed back by up to 30 mm, yielding a highly flexible 10-40 mm usable travel window for precise end-position tuning during commissioning. In the 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing with CMSE reed or DMSE electronic switches. The extruded aluminum barrel retains standard ISO 15552 mounting dimensions, while the available mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster acts strictly as a travel stop to decelerate the load, not as a lock.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX40-30S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX40-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 40 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 SAIJ32BX40-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×40 | 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 SAIJ32BX40-30S Is Used
Machine Changeover
Dial in the exact 10 to 40 mm end position during product size changes without physically replacing the cylinder or repositioning hard stops.
Clamping Force Setup
Fine-tune the clamping travel on small fixtures where the 402 N thrust must bottom out at a precise variable distance.
Sensor Calibration
Use the DMSE electronic sensors alongside the built-in magnet to confirm position across the adjusted travel window.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX40-30S the Right Cylinder?
Choose this 32 mm bore when an application requires precise mechanical end-stop adjustments between 10 and 40 mm without swapping cylinders or adding external stops. If your process needs less force, dropping down a bore size is not an option here, as 32 mm is the smallest available SAIJ footprint. If you require significantly more thrust, stepping up to a 40 mm bore yields 628 N of push force at 0.5 MPa.
Because the standard 40 mm stroke is short, side-loading risks are minimal, but always ensure the 12 mm rod and M10x1.25 thread are properly aligned. The PT tapered port and G1/8 air supply must be clean and filtered to 40 um. Remember that a plain SAIJ cylinder does not hold its load without live air pressure; for pilot-operated check valve or mechanical lock requirements, consider the SAIL or BSAI series instead.
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 SAIJ32BX40-30S FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can reach a maximum of 724 N push force at 0.9 MPa.
The rear adjusting screw acts as a mechanical stop, allowing you to shorten the effective travel by up to 30 mm. This creates a usable stroke window of 10 to 40 mm, enabling fine-tuning at commissioning without adding external stops.
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