This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X450-75, 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 SIJ32X450-75
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X450-75 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 SAIJ32X450-75, 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 → SAIJ32X450-75
- 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 SIJ32X450-75
The AirTAC SIJ32X450-75 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. Its external stop screw lets you trim the extend stroke by up to 75 mm on-site, giving a usable 375-450 mm range from the 450 mm nominal maximum. The 32 mm bore uses a G1/8 port, M10x1.25 rod thread, and 27 mm adjustable cushions.
The direct replacement is the SAIJ32X450-75, matching the interface, force, and port. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. Note: this SKU lacks a magnet and cannot take a switch. The stop screw sets end position but is not a load lock; use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X450-75 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X450-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X450-75 |
| 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 SAIJ32X450-75 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 SAIJ32X450-75 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 SIJ32X450-75
| 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 SIJ32X450-75 Is Used
Variable Pitch Push Stations
Tuning the extend stroke by up to 75 mm on-site allows a single 450 mm cylinder to push parts at varying pitches without changing the entire actuator assembly.
Adjustable Length Carton Flaps
The external stop screw provides precise 375-450 mm extend endpoints to fold differing carton depths accurately on the fly, avoiding hard mechanical stops.
Variable Position Diverters
Field-trimming the extend stroke lets a diverter arm reach multiple conveyor lanes precisely, using the 75 mm adjustment window to set the exact end position.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X450-75 with the SAIJ32X450-75
To replace this discontinued model, order the SAIJ32X450-75 direct. The 75 mm adjust window is ideal for field-tuning the extend end position without machining. Mounting interfaces (Basic, FA, LB, TC) reuse existing ISO 15552 fixtures. Because this SKU has no -S suffix, it cannot accept a magnetic switch. Finally, at 450 mm stroke, mind the side-load and rod-bending risks—ensure external guides support the load to prevent premature seal wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X450-75
- ✓ 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 SIJ32X450-75 FAQ
Yes, the SIJ32X450-75 is discontinued. The direct replacement is the SAIJ32X450-75, which shares the identical ISO 15552 interface, 450 mm stroke, 75 mm adjust window, G1/8 port, and force. The SAIJ features an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The external stop screw allows trimming the extend stroke by up to 75 mm on-site, yielding a usable 375-450 mm range. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X450-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X450-75 replacement — usually within 7-8 hours.