This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X16LB, 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 SI32X16LB
The AirTAC SI32 Standard Air Cylinder SI32X16LB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 16mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X16LB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke16 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X16LB
- 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 SI32X16LB
The AirTAC SI32X16LB is a discontinued double-acting ISO 15552 profile cylinder with an LB foot mount, delivering a 402 N push force at 0.5 MPa. AirTAC replaced this legacy unit with the SAI32X16LB direct replacement. It shares the exact same 32 mm bore, 16 mm stroke, G1/8 port and ISO 15552 mounting interface, fitting existing fixtures perfectly.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Because this specific SKU lacks a magnet (-S), it cannot accept a CS1-B/DS1-B sensor.
Airtac SI32 Standard Air Cylinder SI32X16LB Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X16LB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X16LB |
| Bore size | Ø32 mm |
| Stroke | 16 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 SAI32X16LB 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 SAI32X16LB 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 SI32X16LB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×16 | 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 SI32X16LB Is Used
Short Stroke Ejection
The 16 mm stroke provides fast part ejection in tight assembly modules, operating at 30-800 mm/s.
Panel Pushing
Suitable for pushing light panels or diverting small products on conveyors where a 20 kg vertical lift margin is ample.
Replacing the Airtac SI32 Standard Air Cylinder SI32X16LB with the SAI32X16LB
To replace the SI32X16LB, order the SAI32X16LB. Confirm the ISO 15552 LB foot mount, 32 mm bore, 16 mm stroke, and G1/8 port (available in PT, G or NPT threads). Since this SKU has no magnet, you cannot mount a position sensor; if sensing is needed, order the SAI32X16LBS. Sizing both ways: if 402 N at 0.5 MPa is insufficient, step up to the 40 mm bore (628 N). Note that a plain cylinder drifts on air loss—the cushion only decelerates near stroke end. For load holding, use an external pilot check valve or the SAIL/BSAI lock variant. The SAI family also offers the SAIF self-valve option for bores 32-100.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X16LB
- ✓ 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 SI32X16LB FAQ
Yes, the SI32X16LB is discontinued. The direct replacement is the SAI32X16LB. It is dimensionally interchangeable per ISO 15552, matching the 32 mm bore, 16 mm stroke, LB foot mount, G1/8 port and 402 N force.
This double-acting 32 mm bore cylinder features a G1/8 port. It delivers 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a theoretical maximum force of 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X16LB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X16LB replacement — usually within 7-8 hours.