This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X40TC, 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 SI32X40TC
The AirTAC SI32 Standard Air Cylinder SI32X40TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 40mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X40TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke40 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X40TC
- 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 SI32X40TC
The AirTAC SI32X40TC is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 40mm stroke, delivering 402N push force at 0.5MPa. It is replaced by the SAI32X40TC, a direct upgrade retaining the TC trunnion mount, G1/8 port, and M10x1.25 rod thread.
The SAI features upgraded two Y-shaped one-way piston seals for low start-up pressure. This non-magnet SKU cannot take a sensor.
Airtac SI32 Standard Air Cylinder SI32X40TC Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X40TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X40TC |
| Bore size | Ø32 mm |
| Stroke | 40 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 SAI32X40TC 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 SAI32X40TC 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 SI32X40TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×40 | 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 SI32X40TC Is Used
Compact Part Ejection
Provides reliable 402N push force at 0.5MPa for ejecting small machined components from fixtures.
Light Clamping
Secures light workpieces during secondary operations using the 345N pull force at 0.5MPa.
Gate Diverting
Actuates short-stroke diverter gates on 32mm bore assemblies with a 40mm travel range.
Replacing the Airtac SI32 Standard Air Cylinder SI32X40TC with the SAI32X40TC
To replace the SI32X40TC, order the SAI32X40TC to match the ISO 15552 TC trunnion mount, 32mm bore, 40mm stroke, and G1/8 port. If sizing up, a 40mm bore yields 628N push at 0.5MPa; sizing down is not available. This non-magnet version cannot accept CS1-B/DS1-B sensors. For load holding, use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X40TC
- ✓ 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 SI32X40TC FAQ
Yes, the SI32X40TC is discontinued. The direct replacement is the SAI32X40TC, which shares the exact ISO 15552 mounting interface, 32mm bore, 40mm stroke, force, and G1/8 port.
The 32mm bore features a G1/8 port, M10x1.25 rod thread, and 27mm cushion. It delivers 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a max of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X40TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X40TC replacement — usually within 7-8 hours.