This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X450LB, 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 SI32 Standard Air Cylinder SI32X450LB
The AirTAC SI32 Standard Air Cylinder SI32X450LB 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 SAI32X450LB, 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 → SAI32X450LB
- 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 SI32 Standard Air Cylinder SI32X450LB
The AirTAC SI32X450LB is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 450mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32X450LB direct.
The SAI upgrade uses two Y-shaped piston seals for low start-up pressure. This no-magnet SKU cannot take a sensor, unlike CS1-B/DS1-B equipped units.
Airtac SI32 Standard Air Cylinder SI32X450LB Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X450LB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X450LB |
| 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 SAI32X450LB 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 SAI32X450LB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI32 Standard Air Cylinder SI32X450LB
| 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 SI32 Standard Air Cylinder SI32X450LB Is Used
Light-Part Diverting
Pushes small packages on a 450mm run using 402N at 0.5MPa, suited for the 32mm bore class.
Pneumatic Stop Gates
Acts as a long-stroke stopper in material handling, using the LB foot mount to secure the barrier.
Compact Assembly Ejector
Ejects lightweight fabricated parts from fixtures, taking advantage of the 724N output at 0.9MPa.
Replacing the Airtac SI32 Standard Air Cylinder SI32X450LB with the SAI32X450LB
To replace the SI32X450LB, order the SAI32X450LB keeping the LB foot mount, 450mm stroke, and G1/8 port. The ISO 15552 interface ensures fixture compatibility. Size both ways: the 40mm bore gives 628N push at 0.5MPa, or at 0.7MPa this 32mm bore yields 563N. As a 450mm stroke risks rod bending, use external guides to prevent side-load damage. Air cushions only decelerate; they do not hold load. For drop-out prevention without air, use an external pilot check valve or the SAIL lock variant. Note: lacking the -S magnet, this cylinder cannot accept CS1-B/DS1-B sensors.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X450LB
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI32 Standard Air Cylinder SI32X450LB FAQ
Yes, the SI32X450LB is discontinued. The direct replacement is the SAI32X450LB, which shares the identical ISO 15552 mounting interface, 32mm bore, 450mm stroke, LB foot mount, and G1/8 port.
The 32mm bore features a G1/8 port, M10x1.25 rod thread, and 27mm cushions. It delivers 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and a maximum theoretical force of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X450LB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X450LB replacement — usually within 7-8 hours.