Thermal evaporator Auto EVA 12

gas blowinglaboratoryfor sample concentration

Product overview
RayKol Auto EVA 12 is an automated nitrogen blow-down evaporator that performs parallel evaporation of up to 12 samples with optical endpoint detection. The system generates a vortex airflow from a stable angled nitrogen stream to continuously disturb sample surfaces and reduce vapor pressure, enabling rapid, controlled evaporation under water-bath heating. Each sample position includes an optical sensor for precise endpoint determination and the unit features a built-in 10-inch touch screen for real-time monitoring and control.

Features

• Batch processing: simultaneous evaporation of up to 12 samples in parallel
• Rapid concentration using water-bath heating combined with nitrogen blowdown
• Transparent sink design for visual observation
• Compatibility with various sample vials and adjustable blowdown angle
• Automatic endpoint detection to prevent over-drying
• Optional sprinkle rinsing to maximize analyte recovery

Applications

• Large-volume concentration for sample batches
• Evaporation of extracts from soil and water for environmental analysis
• Evaporation of azo dye extracts from textiles
• Concentration for fat and acid value analysis in food testing
• Evaporation of pesticide and veterinary drug residues
• Typical analyses: soil/sediment — organochlorine pesticides (GC/MS); solid waste — PCBs (GC/MS); textiles — banned azo colorants

Benefits

• High throughput: up to 12 samples with support for 60 mL and 250 mL stemmed vials and endpoint detection
• Gradient nitrogen blowdown via precise gas flow control for efficient evaporation
• Adjustable blowdown angle to optimize vortex shear and evaporation efficiency
• Optional rinse module to improve analyte recovery
• Automatic water refill with level sensor for software-controlled filling and draining of the water bath

Specifications (table)
Concentration — Water bath heating and nitrogen blowing
Sample capacity — 12
Concentration temperature range — Room temperature to 60 °C
Sample vials — 60 mL, 250 mL stemmed glass tubes for endpoint detection
Endpoint detection — 1.0 mL, 0.5 mL
Gas flow range — 0 to 5.0 mL/min, precision 0.1 mL/min
Software interface — 10-inch built-in touch screen
Dimensions — 58 cm x 46 cm x 56 cm
Weight — 41 kg
Power supply — 200 to 240 V, 50/60 Hz
Power — 1500 W
Fume hood/ventilation — Required
Storage temperature — 0 to 40 °C
Storage humidity — 20 to 85%
Operating temperature — 10 to 40 °C
Operating humidity — 20 to 80%

Technical specifications

• Concentration: Water bath heating and nitrogen blowing
• Sample capacity: 12
• Temperature range: Room temperature to 60 °C
• Compatible vials: 60 mL, 250 mL stemmed glass tubes
• Endpoint detection: 1.0 mL, 0.5 mL
• Gas flow range: 0 to 5.0 mL/min (precision 0.1 mL/min)
• Interface: 10-inch built-in touch screen
• Dimensions: 58 cm x 46 cm x 56 cm
• Weight: 41 kg
• Power supply: 200–240 V, 50/60 Hz
• Power consumption: 1500 W
• Ventilation: Fume hood or local extraction required