CNC Automatic Rotary Evaporator

 

The system utilizes a PLC-based CNC controller to replace manual mechanical adjustments, ensuring repeatable outcomes in solvent recovery.

 

Rotation: A Variable Frequency Drive (VFD) motor maintains rotation speed within ±1 RPM, ensuring consistent centrifugal film formation.

 

Thermal Regulation: The heating bath uses a PID (Proportional-Integral-Derivative) algorithm to modulate heat input. This keeps the bath temperature within ±0.5°C, preventing localized boiling and thermal stress on samples.

 

Lifting: A motorized ball-screw actuator manages flask positioning, allowing for precise immersion depth that can be stored and recalled for specific batch processes.

 

 

Instead of manual bleed valves, the system employs an electronic vacuum proportional valve to manage pressure.

 

Pressure Stability: Onboard sensors monitor the internal vacuum level in real-time, modulating the system to maintain constant pressure. This stability prevents "bumping" and sudden vapor surges.

 

Solvent Recovery: By maintaining precise pressure, the system enables efficient evaporation of low-boiling-point solvents at reduced temperatures, which is critical for protecting heat-sensitive compounds from degradation.

 

 

Chassis: Constructed from 304-grade stainless steel with a powder-coated finish, providing resistance to acid vapors and common organic solvents found in laboratory settings.

 

Glassware: Borosilicate 3.3 glass is used for all condensation and receiving parts. This material is specified for its low thermal expansion coefficient, which prevents structural failure during rapid temperature transitions.

 

Sealing: The rotation interface utilizes a PTFE (polytetrafluoroethylene) double-ring sealing assembly. This mechanical design prevents vacuum leaks and shields the motor drive from solvent vapor exposure.

 

 

Hardware safety protocols are built directly into the system logic:

 

Dry-Heating Cutoff: A float switch sensor terminates power to the heating element if the bath fluid level falls below the safety threshold.

 

Motor Overload Protection: The VFD continuously monitors motor current; if resistance exceeds defined parameters, the drive automatically decouples to prevent glass breakage.

 

Emergency Overrides: The E-Stop button is hardwired to bypass the control software, immediately venting the vacuum and initiating the motor lift to physically separate the flask from the heat source.

 

 

 

 

Every unit follows a strictly defined factory inspection cycle:

 

Component Sourcing: Critical parts, including electronic sensors and VFDs, are sourced from industrial-grade vendors to ensure performance stability.

 

Pre-shipment Testing: Each unit is subjected to a 4-hour continuous vacuum seal test at 100mbar and a 50-hour continuous motor rotation test to verify mechanical integrity before release.

 

Export Packaging: Equipment is secured in custom-cut EPE foam within reinforced plywood crates, ensuring durability during international maritime or air transit.

 

 

We provide direct-from-factory support for distributors and industrial buyers:

 

Customization: We support branding (logo printing), appearance design, and specific control system UI adjustments.

 

Technical Support: We provide comprehensive documentation, application guidance, and remote technical consultation for your team.

 

Supply Stability: Our manufacturing capacity is calibrated for consistent, bulk-order delivery, ensuring reliable lead times for distributors.

 

Warranty & Service Commitment: Every unit includes a 12-24 month comprehensive warranty. We maintain a global inventory of core components to ensure 5-year spare-part availability for all delivered systems.

 

 

 

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