Ultrasonic Pipet Washer (AW31)
The Ultrasonic Pipet Washer (AW31) is a compact ultrasonic washer with both washing and rinsing functions in one unit. It uses a return current system for efficient cleaning, drains dirty liquid via a jet from the bottom nozzle, and continuously spins the bath basket for thorough cleaning.

Manufacturer: Yamato — Japan
Overview
The Ultrasonic Pipet Washer (AW31) is a compact ultrasonic washer with both washing and rinsing functions in one unit. It uses a return current system for efficient cleaning, drains dirty liquid via a jet from the bottom nozzle, and continuously spins the bath basket for thorough cleaning. It can be washed using water-soluble alkaline detergent.
Cleaning System
The AW31 features a return current system for smart cleaning efficiency, and dirty liquid is drained by the force of a jet from the bottom nozzle for good cleaning. The bath basket spins constantly during operation for good cleaning.
Compact, Dual-Function Design
Washing and rinsing can both be done in a single, compact washer, and it is washable using water-soluble alkaline detergent.
Common Specifications
| Specification | Ultrasonic Pipet Washer (AW31) |
|---|---|
| Item Code | 291704 |
| Model | AW31 |
| Pipet quantity | Pipet (Max. 500mm) 1mL = 264pcs 5mL = 216pcs. 10mL = 136pcs |
| Operation water amount | 1 to 3L/min. |
| Ultrasonic oscillator | High frequency output, 55W, 28kHz Oscillation plate: stainless steel, SUS430 Oscillator: ball ferrite |
| Bath material | Clear vinyl chloride |
| Cabinet | Stainless Steel SUS304 |
| Accessories | Rack, Manual pump, Water supply hose : I.D. 12mm×1.5m length, Drain hose : I.D. 25mm×1.5m length, Detergent |
| Internal dimensions (φ×H mm) | φ138×540mm |
| External dimensions (φ×W×D×H mm) | φ146×390×400×844mm |
| Power Source | AC115V/AC220V 1A Single-phase with step-down transformer |
| Weight | 18.5kg |
| Remarks (weight) | Basket : Approx. 1 kg |
