This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X650, 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 SI32X650
The AirTAC SI32 Standard Air Cylinder SI32X650 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 650mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X650, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke650 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X650
- 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 SI32X650
The AirTAC SI32X650 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 650mm stroke, delivering 402N push force at 0.5MPa. The direct replacement is the SAI32X650, which preserves the exact G1/8 port, M10x1.25 rod thread, and ISO 15552 mounting interface to fit existing fixtures without modification.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this non-magnet SKU cannot take a sensor, though legacy SI sensors were CS1-B/DS1-B. For high heat, Viton H seals raise the temperature limit to 150C.
Airtac SI32 Standard Air Cylinder SI32X650 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X650 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X650 |
| Bore size | Ø32 mm |
| Stroke | 650 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 SAI32X650 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 SAI32X650 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 SI32X650
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×650 | 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 SI32X650 Is Used
Diverting Arms
Drives lightweight routing gates on packaging lines, utilizing the 650mm stroke to swing products into secondary lanes smoothly.
Long-Reach Pickoff
Extracts small machined parts from deep fixtures, requiring external guide rods to prevent piston bending over the 650mm extension.
Replacing the Airtac SI32 Standard Air Cylinder SI32X650 with the SAI32X650
To replace the SI32X650, order the SAI32X650 and confirm the ISO 15552 mounting interface, 32mm bore, 650mm stroke, G1/8 port (PT/G/NPT), and your mounting accessory. Because this SKU lacks a magnet (-S), it cannot accept a magnetic sensor. If you need to hold a load without live air, note that the cushion only decelerates; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. At 650mm, prevent rod bending by guiding the load externally. Neighbouring bores: SI40X650 offers 628N push @0.5MPa, while SI20 (if available) offers less. The SAIF variant (bores 32-100) integrates a 4M valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X650
- ✓ 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 SI32X650 FAQ
Yes, the SI32X650 is discontinued. The direct replacement is the SAI32X650. It is dimensionally interchangeable per ISO 15552, maintaining the same 32mm bore, 650mm stroke, output force, G1/8 port, and mounting accessories.
The 32mm bore features a G1/8 port and delivers 402N push / 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa. Speed is 30-800mm/s with a 27mm adjustable cushion.
Request a Quote for the SAI32X650
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X650 replacement — usually within 7-8 hours.