This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X450-50S, 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 SIJ32X450-50S
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X450-50S 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 SAIJ32X450-50S, 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 → SAIJ32X450-50S
- 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 SIJ32X450-50S
The AirTAC SIJ32X450-50S is a discontinued double-acting, double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore and 12 mm rod. An external stop screw lets you trim the extend stroke by up to 50 mm on-site, yielding a usable 400-450 mm window from the 450 mm maximum. The direct replacement is the SAIJ32X450-50S, sharing the same interface, force, and adjustability.
The SAIJ successor benefits from an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. The stop screw sets the end position but is not a load lock; use an external rod lock or SAIL/BSAI variant for held loads. At 450 mm, external guides are advised to prevent rod bending.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X450-50S Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X450-50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X450-50S |
| 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 SAIJ32X450-50S 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 SAIJ32X450-50S 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 SIJ32X450-50S
| 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 SIJ32X450-50S Is Used
Variable Pitch Pushing
Tuning the extend stroke on-site by up to 50 mm allows a single 450 mm cylinder to push parts of varying widths without swapping the entire actuator.
Adjustable Diverting Gate
Field-trimming the extend end position lets operators recalibrate a diverting mechanism on the fly to accommodate different package sizes on the line.
Custom End-Stop Positioning
Setting a precise 400 mm extend instead of the full 450 mm provides a dedicated mechanical stop for staging pallets or product without re-engineering the fixture.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X450-50S with the SAIJ32X450-50S
To replace the discontinued SIJ32X450-50S, use the direct replacement SAIJ32X450-50S, retaining the ISO 15552 mounting interface and G1/8 port. Choose the 50 mm adjust window if your setup requires field tuning of the extend stroke within 400-450 mm. Mounting options include FA, LB, and TC brackets. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches (the SAIJ uses current switches). Since the stroke is 450 mm (>=300 mm), incorporate external guides to mitigate side-load and rod-bending risks.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X450-50S
- ✓ 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 SIJ32X450-50S FAQ
Yes, the SIJ32X450-50S is discontinued. The direct replacement is the SAIJ32X450-50S. It shares the same ISO 15552 interface, 32 mm bore, 450 mm stroke, 50 mm adjust window, G1/8 port, and mounting options, while adding an upgraded piston seal.
The external stop screw provides a 50 mm adjust window, allowing the extend stroke to be shortened from the 450 mm maximum down to 400 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X450-50S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X450-50S replacement — usually within 7-8 hours.