This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X50CB, 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 SI32X50CB
The AirTAC SI32 Standard Air Cylinder SI32X50CB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 50mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X50CB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke50 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X50CB
- 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 SI32X50CB
The AirTAC SI32X50CB is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 50mm stroke, delivering 402N push force at 0.5MPa. The direct replacement is the SAI32X50CB, retaining the same CB clevis mount, G1/8 port, and 12mm rod.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. This SKU lacks a magnet, so it cannot take a sensor.
Airtac SI32 Standard Air Cylinder SI32X50CB Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X50CB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X50CB |
| Bore size | Ø32 mm |
| Stroke | 50 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 SAI32X50CB 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 SAI32X50CB 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 SI32X50CB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×50 | 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 SI32X50CB Is Used
Small Part Ejection
Uses the 402N push force at 0.5MPa to eject light machined components from a fixture cleanly.
Package Diverting
Short 50mm stroke actuates a diverter arm on a packaging line without taking up excessive space.
Replacing the Airtac SI32 Standard Air Cylinder SI32X50CB with the SAI32X50CB
To replace the SI32X50CB, order the SAI32X50CB and confirm the ISO 15552 CB clevis mounting interface, 50mm stroke, and G1/8 port. Because this specific SKU has no -S magnet, it cannot accept CS1-B/DS1-B sensors. If you need more force than the 402N at 0.5MPa, step up to the 40mm bore (628N). For load holding, note that a plain cylinder drifts on air loss; the cushion only decelerates. Use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X50CB
- ✓ 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 SI32X50CB FAQ
Yes, the SI32X50CB is discontinued. The direct replacement is the SAI32X50CB. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 50mm stroke, G1/8 port, and CB clevis mount.
The G1/8 port bore 32mm cylinder delivers 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and a theoretical max of 82kgf at 1.0MPa. It operates at 30-800mm/s with a 12mm rod.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X50CB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X50CB replacement — usually within 7-8 hours.