This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X450-50, 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 SIJ32X450-50
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X450-50 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 SAIJ32X450-50, 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 → SAIJ32X450-50
- 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 SIJ32X450-50
The AirTAC SIJ32X450-50 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore, 12 mm rod, M10x1.25 thread, and G1/8 port. An external stop screw lets you trim the extend stroke by up to 50 mm on-site, giving a usable 400-450 mm window. The stop sets end position only; it is not a load lock. The direct replacement is the SAIJ32X450-50, sharing the same interface, force, and mounting.
The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure, and the SAI family adds SAIL and BSAI lock variants. This non-magnet SKU cannot take a switch.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X450-50 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X450-50 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X450-50 |
| 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 SAIJ32X450-50 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 SAIJ32X450-50 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 SIJ32X450-50
| 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 SIJ32X450-50 Is Used
Variable-depth drilling fixture
An external stop screw trims the 450 mm extend stroke by up to 50 mm on-site to set precise material depth without reprogramming the PLC.
Adjustable transfer diverter
Tune the extend position in the field by up to 50 mm to accommodate different package sizes on a 32 mm bore actuator.
Variable-stop loading pusher
Set the exact push-off distance on-site using the external stop screw, allowing the 450 mm stroke to adapt to varied pallet widths.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X450-50 with the SAIJ32X450-50
To replace the discontinued SIJ32X450-50, order the direct replacement SAIJ32X450-50, reusing your FA, LB, or TC mounts. The 50 mm adjust window suits variable end positions; remember the stop is not a lock. This non-magnet SKU cannot take a switch. For the 450 mm stroke, support side-load and rod-bending with an external guide.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X450-50
- ✓ 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 SIJ32X450-50 FAQ
Yes, the SIJ32X450-50 is discontinued. The direct replacement is the SAIJ32X450-50, which shares the same ISO 15552 interface, 32 mm bore, 450 mm stroke, 50 mm adjust window, G1/8 port, and mounting.
The external stop screw provides a 50 mm adjust window, making the usable extend stroke 400-450 mm. The stop sets end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X450-50
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X450-50 replacement — usually within 7-8 hours.