This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X50SN, 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 SI32X50SN
The AirTAC SI32 Standard Air Cylinder SI32X50SN 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 SAI32X50SN, 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 → SAI32X50SN
- 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 SI32X50SN
The AirTAC SI32X50SN is a discontinued double-acting ISO 15552 profile cylinder featuring a 32mm bore, 50mm stroke, and a G1/8 port. Delivering 402N push force at 0.5MPa, it is replaced by the SAI32X50SN. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, force, and port size, fitting existing fixtures perfectly.
The SAI32X50SN upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure and long life. The -SN config gives an NBR seal (-20 to +70C) and a piston magnet for CS1-B/DS1-B sensors. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked.
Airtac SI32 Standard Air Cylinder SI32X50SN Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X50SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X50SN |
| 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 SAI32X50SN 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 SAI32X50SN 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 SI32X50SN
| 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 SI32X50SN Is Used
Small Part Clamping
Ideal for securing lightweight electronics or plastic components during machining, utilizing the 402N push force at 0.5MPa without deforming the material.
Package Diverting
Provides reliable actuation for routing small cartons on a packaging line, where the 50mm stroke and 30-800mm/s speed range ensure rapid, precise movements.
Replacing the Airtac SI32 Standard Air Cylinder SI32X50SN with the SAI32X50SN
To replace the SI32X50SN, order the SAI32X50SN: it matches the 32mm bore, 50mm stroke, M10x1.25 rod thread, G1/8 port, and ISO 15552 mounting. If downsizing, a 32mm bore yields 402N push at 0.5MPa; if up-sizing, a 40mm bore yields 628N. Keep the -S magnet for current AirTAC switches and the -N NBR seal. Note: a plain cylinder drifts on air loss since cushions only decelerate; use an external rod lock or SAIL/BSAI variant to hold loads. Stroke is under 300mm, so rod bending risks are minimal.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X50SN
- ✓ 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 SI32X50SN FAQ
Yes, the AirTAC SI32X50SN is discontinued. The direct replacement is the SAI32X50SN. It shares the same ISO 15552 mounting interface, 32mm bore, 50mm stroke, output force, and G1/8 port, fitting directly into your existing fixtures.
The 32mm bore features a G1/8 port. Force outputs are: 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum of 82kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X50SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X50SN replacement — usually within 7-8 hours.