The Yamato ADP-31 is a vacuum drying oven engineered for laboratory and industrial applications requiring controlled low-pressure thermal processing. It combines microprocessor-based temperature regulation with variable vacuum control to create a controlled environment for drying sensitive materials. The unit features a 1 cu. ft. (27–28.31 L) stainless steel chamber, precise digital temperature management, and dual purge valves for atmospheric control.
Technical Specifications
Chamber & Construction
• Internal dimensions: 11.75″ W × 11.75″ H × 11.75″ D (29.845 cm cube)
• External dimensions: 16.5″ W × 18.25″ D × 25″ H
• Interior: Type 304 stainless steel
• Exterior: Cold rolled steel with melamine resin finish
• Insulation: Rock wool
• Observation window: 12 mm tempered glass with polycarbonate resin plate
• Door: Single swing, reversible (left or right opening), silicone rubber seal
Temperature Control
• Range: 40°C to 240°C (104°F to 464°F)
• Accuracy: ±1.5°C at 150°C or ±1.5°C at 240°C
• Resolution: 0.1°C
• Uniformity: ±0.8°C at 150°C
• Control: Microprocessor PID with 4-digit LED display
• Input: Digital keypad (up/down keys)
• Display: Dual-color LED (green for measurement, red for setpoint)
Vacuum System
• Range: 101 to 0.1 kPa absolute (760 to 1 mm Hg / Torr)
• Gauge type: Bourdon tube
• Purge valves: Two, top-mounted
Heating
• Method: Direct chamber heating via mica heater
• Power: 0.68 kW or 1.05 kW (model dependent)
• Time to 240°C: Approximately 70–100 minutes
Shelving
• Configuration: 3 shelves, 3 shelf positions
• Material: Stainless steel standard; aluminum perforated plates available as option
– Electrical Requirements
• Supply: 115 VAC or 120 VAC, 10 A
• Frequency: 50/60 Hz
– Key Features
• Precise ±0.8°C chamber uniformity at process temperature
• Reversible door design accommodates left or right swing installation
• Bourdon tube vacuum gauge provides direct pressure monitoring
• Dual heater wattage options match varied laboratory power infrastructure
• Customizable communication ports available
– Typical Applications
• Drying thermally sensitive materials under reduced pressure
• Solvent removal and degassing operations
• Sample preparation in analytical chemistry
• Materials processing requiring controlled thermal and pressure profiles
