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DW-Mini-50 Array-type Rotary Evaporator

The DW-Mini-50 array-type rotary evaporator is designed for precise small-volume evaporation, reduced-pressure distillation, sample concentration, and powder sample drying. It features touch-screen operation, programmable vacuum control, automatic lifting, and a dual-purpose water/oil bath for flexible laboratory applications.

25–500 mL Flask Capacity
Max. 25 mL/min H₂O
0–310 rpm Rotation Speed
RT–99°C ±0.5°C Water Bath
RT–210°C ±2°C Oil Bath
10-Stage Vacuum Gradient Distillation Program

Description
Specification
Accessories
Why Drawell?

Features of DW-Mini-50

Touch-screen control with 0-310 rpm rotation speed range.
Programmable vacuum control with 10-stage gradient distillation.
Automatic pressure release, jog pressure release, and one-touch pressure release.
Dual-purpose water/oil bath with precise temperature control.
Touch-control automatic balanced lifting with collision-prevention safety distance.
Forward, reverse, and intermittent forward/reverse rotation for powder drying applications.
Imported PTFE sealing components for enhanced sealing, corrosion resistance, and wear resistance.

Applications of DW-Mini-50

Pharmaceutical Research

API intermediates, reaction mixtures, solvent extracts, purified fractions.

Chemical Synthesis

Organic reaction mixtures, chemical intermediates, reagent solutions, synthesis fractions.

Natural Product Extraction

Plant extracts, herbal extracts, botanical fractions, natural-product solutions.

Chromatography Sample Preparation

Chromatography fractions, eluents, purified sample solutions, solvent-based fractions.

10-Stage Vacuum Distillation

FAQ

It supports 25–500 mL sample flask capacities.

The specified capacity is 25 mL/min for water.

Rotation speed is adjustable from 0–310 rpm.

Yes. It supports a 10-stage gradient distillation program.

With a suitable high-pumping-rate vacuum pump, the internal vacuum can reach 2 mbar.

The water bath reaches 99°C, while the oil bath reaches 210°C.

Yes. The lift stroke is 60 mm, with a 20 mm safety distance at the lowest position.

The brochure specifies forward/reverse intermittent rotation with 0–60 s intervals for applicable powder sample drying.

Specifications of DW-Mini-50

Model	DW-Mini-50
Touch Screen Display	Rotation speed: 0-310 rpm
Vacuum Control Range	0 to -0.1 MPa (0-1013 mbar), accuracy: +/-1
Vacuum Functions	Freely adjustable vacuum degree; automatic pressure release after experiment; jog pressure release; one-touch pressure release
Program Control	10-stage gradient distillation program control for step-by-step vacuum adjustment during synthesis, chromatography, and reduced-pressure distillation
Data Storage	Stores multiple commonly used experimental data sets; one-touch start for rapid distillation
Evaporation Capacity	Max. 25 ml/min (H₂O)
Ultimate Vacuum	Internal vacuum can reach 2 mbar when equipped with a high-pumping-rate vacuum pump
Temperature Range	Dual-purpose water/oil bath. Water bath: room temperature to 99 deg C, +/-0.5 deg C; oil bath: room temperature to 210 deg C, +/-2 deg C
Bath Material	One-piece molded Teflon composite bath
Lifting Stroke	Touch-control automatic balanced lifting; lifting stroke: 60 mm. A fixed 20 mm safety distance is reserved at the lowest position to prevent collision.
Sample Flask Rotation	Forward rotation, reverse rotation, and intermittent forward/reverse rotation. Intermittent time adjustable from 0 to 60 s; suitable for drying powder samples.
Safety Performance	Timer: 0-999 min. When the preset time is reached, the equipment automatically stops and returns to standby mode; warning and protection functions included.
Heating Power	800 W
Applicable Sample Flask Capacity	25-500 ml
Sealing Components	Imported PTFE and special synthetic materials, molded by special processing technology to improve sealing performance, corrosion resistance, and wear resistance
Condenser	Vertical serpentine condenser with triple ground joints; condensing area: 0.18 m²; designed with liquid dripping point and anti-backflow structure to improve efficiency
Standard Configuration	24#/42 pear-shaped flask 250 ml x 1; S35 spherical ground-joint receiving flask 500 ml x 1
Power Supply	AC 220 V / 50 Hz

Washer
Washer
Multi-manifold
Heating Pot
Cooling Device
Evaporating Flask
Evaporating Flask
Evaporating Flask
Evaporating Flask

Why Choose Us?

One-Station Shopping

“Multiple suppliers” have always been an issue in the procurement process. Drawell as a one-stop laboratory equipment and scientific instruments supplier, can perfectly solve this problem. In addition to manufacturing our own equipment, we also represent other laboratory equipment. Our product lines are rich and diverse at competitive prices. Provide one-stop service to customers.

Customer-centric Services

User Training – Training by Drawell skilled engineers about installation, debug tests, technical services, etc. It can happen in our factory in China, or at the site in the customers’ country. Cost depends on where and when the training happens.

Online Support

To discuss the problem and get it resolved, online chats, real-time video calls, and remote guidance. For the after-sales stage, our online technical guidance is free and ready forever.

100% Quality Guarantee Policy

1 year free official warranty, including repairing quality-damaged parts, and offering replacements of selected parts (shipping cost is extra). 5% of the product price is charged for extending the warranty before the end of the official warranty.