This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X450-40, 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 SIJ32X450-40
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X450-40 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 450mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X450-40, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke450 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X450-40
- 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 SIJ32X450-40
The AirTAC SIJ32X450-40 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore and 450 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 410-450 mm extension window. The direct replacement is the SAIJ32X450-40, retaining the same interface, force, and adjustability.
The SAIJ successor introduces an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. Because this SKU lacks a -S magnet, it cannot accept a reed switch. The stop screw sets end position only; it is not a load lock. For held loads, use an external rod lock or the SAIL/BSAI variants.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X450-40 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X450-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X450-40 |
| Bore size | Ø32 mm |
| Stroke | 450 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 SAIJ32X450-40 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 SAIJ32X450-40 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 SIJ32X450-40
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×450 | 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 SIJ32X450-40 Is Used
Variable Pitch Pushing
Feed stations requiring on-site stroke tuning to push parts of varying widths without swapping the entire actuator.
Adjustable Diverter Arm
Sorting lanes where the extend stop screw is field-trimmed to hit exact package dimensions on the line.
Crush-Sensitive Forming
End-of-arm tooling needing a hard mechanical end position to consistently press delicate materials without overshoot.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X450-40 with the SAIJ32X450-40
To replace the discontinued SIJ32X450-40, order the direct replacement SAIJ32X450-40, which preserves the 32 mm bore, 450 mm stroke, 40 mm adjust window, and G1/8 port. Choose the 40 mm adjust window if your field tuning requires trimming up to 40 mm off the maximum 450 mm extend. Mounting options include Basic, FA, LB, and TC brackets. Since this SKU has no -S suffix, it cannot support magnetic sensing. Finally, at 450 mm stroke, mind the side-load and rod-bending limits; use external guides to prevent premature seal wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X450-40
- ✓ 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 SIJ32X450-40 FAQ
Yes, the SIJ32X450-40 is discontinued. The direct replacement is the SAIJ32X450-40. It shares the same ISO 15552 interface, 32 mm bore, 450 mm stroke, 40 mm adjust window, G1/8 port, and force ratings. The SAIJ family also adds an upgraded piston seal for longer life.
The external stop screw provides a 40 mm adjustment window, allowing the extend stroke to be shortened from 450 mm down to 410 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X450-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X450-40 replacement — usually within 7-8 hours.