Vacuum evaporator RE-LA-5

rotarylaboratoryfor liquids

Short description
5 L rotary evaporator with large-diameter evaporation flask and vacuum water/oil dual-use bath with rotating-edge heating. Suitable for laboratory-scale biological, pharmaceutical, chemical and food applications. Can be supplied as a complete system with vacuum pumps, circulating coolers and constant-temperature circulators as required.

Product profile
The RE-LA-5 rotary evaporator uses stepless speed control to rotate the glass flask, forming a uniform film on the inner wall. The rotating flask is heated by an intelligent constant-temperature bath and evaporates rapidly under vacuum. Solvent vapor is condensed in a vertical three-layer serpentine glass condenser and collected for recovery.

Functions and characteristics

• Main frame in stainless steel and aluminium alloy for a stable structure.
• All glass parts made of high borosilicate glass (GG-17) for thermal and chemical resistance.
• Sealing system with combined imported fluororubber and PTFE two-way seals for long-term vacuum integrity.
• Real-time vacuum display and vibration-resistant oil performance gauge.
• Vertical three-layer serpentine condenser for efficient condensation and high solvent recovery.
• Continuous feeding via PTFE-sleeved feeding valve and collecting bottle with feed device for batch operations.
• Check-valve control for continuous feeding and vacuum switching during operation.
• Integrated handwheel valves for improved sealing and ease of use.
• Microcomputer power switch control and LCD full-screen display with dual digital readout for temperature and speed; PT100 sensor for fast temperature feedback.
• Brushless DC geared motor for stable, spark-free rotation.
• Electric lifting driven by a geared booster motor with 0–150 mm stroke.
• 304 stainless steel bath with protective coating and silica gel outer layer for safe high-temperature use.
• Over-temperature, anti-dry and automatic power-restoration safety protections.

Specifications
Model: RE-LA-5 (RE-LA-5EX explosion-proof available)
Rotary flask capacity: 5 L
Flange diameter: Φ50 mm
Collecting bottle capacity: 3 L
Rotation control: LCD display, stepless frequency conversion
Rotation speed: 20–140 r/min
Rotary motor power: 250 W
Condenser: vertical double/three-layer serpentine tube
Bath: SS304 stainless steel with coating
Temperature range: RT–180 °C (PT100 control)
Vacuum display: to 399.9 Pa (below 3 mmHg)
Evaporation rate: water ≥ 2 L/h; alcohol ≥ 5.4 L/h
Lifting mode and stroke: electric 0–150 mm
Power supply: 220–240 V, 50/60 Hz; total power 2.3 kW
Dimensions (L×W×H): 765 × 400 × 1075 mm
Weight: 40 kg