Stirred-tank reactor VGR series

multipurposefor chemicalswith mixer

Overview
This single-layer glass reactor VGR Series combines an electric constant-speed stirring system, a heating bath and a glass condenser for evaporation and reflux. During operation the stainless-steel kettle is heated by the bath while an electric stirrer provides controlled mixing. Under vacuum (external vacuum pump required) evaporation efficiency increases; solvent vapor is condensed via an external cooling circuit and returned for reflux or collected. The series requires external vacuum and cooling/reflux devices to form a complete system.

Features

• All wetted parts made of high borosilicate glass (expansion coefficient 3.3) and PTFE for chemical resistance.
• Main frame: anticorrosion coated cold plate + aluminum alloy; kettle: stainless steel.
• Independent switching controls for stirring and heating; tilt (ON-OFF) button provided.
• Electronic stepless speed regulation with knob fine-tuning; speed shown digitally on control box.
• Digital constant-temperature bath with K-type sensor at kettle bottom and stainless-steel probe.
• Stirring shaft uses ceramic bearings and mechanical seal to reduce wear and contamination.
• Vacuum gauge with pointer for real-time vacuum monitoring.
• Crescent-type impeller in 304 stainless steel with PTFE coating; stirring shaft 304 stainless steel with PTFE sleeve.
• Double-fuse safety protection for stirring motor and heating.

Specifications (single-layer small models)

• Models: VGR-1S (1 L spherical), VGR-2S (2 L), VGR-3S (3 L), VGR-5S (5 L).
• Voltage/frequency: 220V/50Hz. Stirring speed: 0–800 rpm (small models). Kettle temperature range: -80℃ to +250℃; bath range: RT to -180℃ (with appropriate cooling).
• Stirring motor power: 40W–90W. Heating power: 1.5–2 kW. Vacuum capability: ~0.098 MPa (external vacuum required).
• Connections and ports: standard ground joints (19#, 24#, 29#) for condenser, funnels and temperature ports; condenser and collection adapters provided per model.
• Dimensions & weights (examples): pot sizes Φ245–Φ280 mm; machine net weight 18–25 kg; package weight 33–40 kg. Exact dimensions vary by model.

Specifications (larger models summary)

• Models: VGR-10S, VGR-20S, VGR-30S, VGR-50S, VGR-100S — capacities 10, 20, 30, 50, 100 L.
• Glass material: GG-17 (high borosilicate). Reaction temperature of kettle: -80℃ to +250℃. Stirring speed up to 450 rpm for larger models.
• Examples of power: stirring 90–250W; heating 3–8 kW. Frame shell sizes, stainless-steel pot sizes and packing vary by model.
• Mobility: universal corner wheels with brake. Discharge port off ground ~450 mm. Number of reaction outlets typically seven-mouth spherical or six-cap cylindrical depending on model.

Workshop / Images
Workshop and factory photos illustrating assembly, inspection and quality-control procedures are provided with the product content.

Technical specifications

• Wetted materials: high borosilicate glass + PTFE for chemical resistance.
• Stirring: ceramic bearings, mechanical seal, crescent PTFE-coated blades, stepless speed control.
• Temperature capability: kettle -80℃ to +250℃; bath down to RT -180℃ with appropriate cooling.
• Vacuum capability: up to ~0.098 MPa (requires external vacuum device).
• Condenser & reflux: glass condensing coil with standard ground joints; external cooling loop recommended.
• Safety: double-fuse protection and mechanical seals; optional explosion-proof motor/inverter for hazardous applications.
• Available capacities: from 1 L up to 100 L across VGR series models.