This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X75-40, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X75-40
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X75-40 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 75mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X75-40, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke75 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X75-40
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X75-40
The AirTAC SIJ32X75-40 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 40mm on-site, giving a usable 35-75mm stroke. The nominal 75mm is the maximum. It features a 32mm bore, G1/8 port, M10x1.25 rod thread, and 27mm adjustable cushions. This SKU has no magnet (-S omitted), so it cannot accept a magnetic switch.
As SIJ is end-of-life, the direct replacement is the SAIJ32X75-40, matching the ISO 15552 mounting interface, force, and port. The SAIJ upgrade uses a two Y-shaped one-way piston seal for lower start-up pressure and longer life. The stop screw sets the end position but is not a load lock; use SAIL or BSAI for held loads.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X75-40 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X75-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X75-40 |
| Bore size | Ø32 mm |
| Stroke | 75 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 standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ32X75-40 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / 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 | |
The SAIJ32X75-40 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X75-40
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X75-40 Is Used
Diverter Gate Positioning
Allows operators to fine-tune the 35-75mm extend stroke on-site to hit a diverter gate precisely without swapping cylinders.
Clamp Stroke Tuning
Provides adjustable 35-75mm clamping reach for fixtures holding irregular parts, setting the exact end position without re-engineering the tooling.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X75-40 with the SAIJ32X75-40
To replace the discontinued SIJ32X75-40, order SAIJ32X75-40 (insert A after S) for an identical ISO 15552 interface, 75mm stroke, 40mm adjust window, and G1/8 port. The 40mm adjust window allows precise field tuning of the extend stroke from 35 to 75mm. Mounting options include Basic, FA, LB, and TC. As this SKU lacks the -S magnet, it cannot support sensing; add -S if you need legacy CS1-B/DS1-B sensor accuracy. For strokes over 300mm, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X75-40
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X75-40 FAQ
Yes, the SIJ32X75-40 is discontinued. The direct replacement is the SAIJ32X75-40, which shares the same ISO 15552 interface, 32mm bore, 75mm stroke, 40mm adjust window, and G1/8 port. The SAIJ family also features an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw provides a 40mm adjust window, allowing you to shorten the extend stroke from the 75mm nominal maximum down to 35mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X75-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X75-40 replacement — usually within 7-8 hours.