This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X125TC, 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 SI32X125TC
The AirTAC SI32 Standard Air Cylinder SI32X125TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 125mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X125TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke125 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X125TC
- 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 SI32X125TC
The AirTAC SI32X125TC is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore, 125 mm stroke and TC trunnion mount. Delivering 402 N push force at 0.5 MPa via a G1/8 port, it is replaced by the SAI32X125TC. This direct successor matches the exact ISO 15552 mounting interface, bore, stroke and output force, fitting existing fixtures perfectly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also adds SAIL, SAIF and BSAI variants absent in the SI line. Note this non-magnet SKU cannot take a sensor.
Airtac SI32 Standard Air Cylinder SI32X125TC Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X125TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X125TC |
| Bore size | Ø32 mm |
| Stroke | 125 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 SAI32X125TC 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 SAI32X125TC 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 SI32X125TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×125 | 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 SI32X125TC Is Used
Small Part Ejection
Uses the 402 N push force at 0.5 MPa to reliably kick small machined components out of an CNC fixture.
Package Diverting
Actuates a lightweight routing gate along a packaging line, benefiting from the 30-800 mm/s speed range.
Clamp Actuation
Secures low-mass workpieces during secondary machining via the TC trunnion mount for fixed pivot alignment.
Replacing the Airtac SI32 Standard Air Cylinder SI32X125TC with the SAI32X125TC
To replace the SI32X125TC, order the SAI32X125TC. Verify the ISO 15552 TC trunnion interface, 32 mm bore, 125 mm stroke, G1/8 port (PT/G/NPT thread) and rod thread M10x1.25. This non-S SKU lacks a magnet and cannot accept CS1-B/DS1-B sensors. If sizing up, the 40 mm bore yields 628 N push at 0.5 MPa; if sizing down, options are unavailable below 32 mm. For strokes over 300 mm, use a guide to prevent rod bending. The cushion only decelerates; it does not hold load. For load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X125TC
- ✓ 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 SI32X125TC FAQ
Yes, the SI32X125TC is discontinued. The direct replacement is the SAI32X125TC. It shares the identical ISO 15552 mounting interface, 32 mm bore, 125 mm stroke, G1/8 port and TC mount, fitting directly into existing machinery.
This double-acting cylinder has a 32 mm bore, M10x1.25 rod thread and 27 mm cushions. Force ratings are 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a theoretical max of 82 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X125TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X125TC replacement — usually within 7-8 hours.