This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X127S, 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 SI32X127S
The AirTAC SI32 Standard Air Cylinder SI32X127S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 127mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X127S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke127 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X127S
- 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 SI32X127S
The AirTAC SI32X127S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 127mm stroke. It delivers 402N push and 345N pull at 0.5MPa through a G1/8 port. The direct replacement is the SAI32X127S, matching the interface, force, and mounting.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure. The SAI family adds SAIL, SAIF, and BSAI lock variants the SI lacked. This -S model uses CS1-B/DS1-B sensors; no-S SKUs cannot take sensors.
Airtac SI32 Standard Air Cylinder SI32X127S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X127S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X127S |
| Bore size | Ø32 mm |
| Stroke | 127 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 SAI32X127S 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 SAI32X127S 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 SI32X127S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×127 | 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 SI32X127S Is Used
Small Part Ejection
Uses the 402N push force at 0.5MPa to push lightweight machined components out of a fixture cleanly.
Compact Clamping
Secures small assemblies during secondary operations with a 20kg vertical lift capacity and 127mm travel.
Material Diverting
Actuates a small divert gate on a conveyor line, benefiting from the 30-800mm/s speed range.
Replacing the Airtac SI32 Standard Air Cylinder SI32X127S with the SAI32X127S
To replace the SI32X127S, order the SAI32X127S. Confirm the ISO 15552 mounting interface, 127mm stroke, G1/8 port (PT/G/NPT), and the -S magnet for CS1-B/DS1-B switches. For sizing, neighbouring bores (40mm) offer 628N push at 0.5MPa. A plain cylinder drifts on air loss as the cushion only decelerates; for load holding use an external pilot check valve or the SAIL/BSAI lock variant. At 127mm stroke side-load risk is low, but ensure straight alignment.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X127S
- ✓ 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 SI32X127S FAQ
Yes, the SI32X127S is discontinued. The direct replacement is the SAI32X127S. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 127mm stroke, G1/8 port, and mounting accessories.
The 32mm bore uses a G1/8 port. It provides 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X127S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X127S replacement — usually within 7-8 hours.