This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X143, 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 SI32X143
The AirTAC SI32 Standard Air Cylinder SI32X143 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 143mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X143, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke143 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X143
- 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 SI32X143
The AirTAC SI32X143 is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 143 mm stroke. It delivers 402 N push and 345 N pull at 0.5 MPa through a G1/8 port. The direct replacement is the SAI32X143, matching the interface, force and mounting.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This no-magnet SKU cannot take a sensor, unlike legacy CS1-B/DS1-B switches.
Airtac SI32 Standard Air Cylinder SI32X143 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X143 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X143 |
| Bore size | Ø32 mm |
| Stroke | 143 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 SAI32X143 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 SAI32X143 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 SI32X143
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×143 | 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 SI32X143 Is Used
Small Part Ejection
Uses the 402 N push force at 0.5 MPa to reliably push lightweight machined components out of a fixture.
Compact Clamping
Secures small workpieces in automated assembly cells where the 32 mm bore and 143 mm stroke fit tight spaces.
Gate Diverting
Actuates small pneumatic diverter gates on packaging lines, taking advantage of the 30-800 mm/s speed range.
Replacing the Airtac SI32 Standard Air Cylinder SI32X143 with the SAI32X143
To replace the SI32X143, order the SAI32X143. Confirm the ISO 15552 mounting accessory (LB, FA, TC, etc.), the G1/8 port, and the M10x1.25 rod thread. Because this specific SKU lacks the -S magnet, it cannot accept position sensors; order an -S variant if CS1-B/DS1-B sensing is needed. For sizing, the 32 mm bore yields 402 N push at 0.5 MPa, while the neighbouring 40 mm bore provides 628 N. If the 143 mm stroke is used for vertical lifting, note that a plain cylinder drifts on air loss; use an external pilot check valve or the SAIL/BSAI lock variant for load holding. At 143 mm, side-load risks are minimal, but always guide the rod for off-center loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X143
- ✓ 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 SI32X143 FAQ
Yes, the SI32X143 is discontinued. The direct replacement is the SAI32X143. It is dimensionally interchangeable per ISO 15552, retaining the same 32 mm bore, 143 mm stroke, force, G1/8 port and mounting interface.
This double-acting cylinder has a G1/8 port and delivers 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a theoretical max of 82 kgf at 1.0 MPa. It operates at 30-800 mm/s with a 27 mm adjustable air cushion.
Request a Quote for the SAI32X143
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X143 replacement — usually within 7-8 hours.