Vacuum Drying Oven (1)
Industrial Drying Oven
Vacuum Drying Oven
Vacuum Drying Oven (2)
Vacuum Drying Oven - Image 5

An industrial vacuum drying oven combines heated trays or shelves with reduced pressure to remove moisture at a lower product temperature. Chamber size and configuration depend on batch load, vacuum level, heating medium, moisture target, temperature limit and any solvent-handling requirement.

Vacuum Drying Oven

Our vacuum drying oven is composed of oven, heat exchange system, control system and other accessories. It has these features:

  • The inner and outer walls of the oven are SUS304 stainless steel, full welding, and to achieve the outer surface of the box is flat, smooth, consistent color, overall beautiful, no obvious bump phenomenon.
  • Oven internal walls also adopt a full welding process, no scurrying wind phenomenon, and make the equipment easy to clean. No water seepage in the insulation layer, to ensure the cleanliness of each drying material.
  • The connection between oven door and the body adopts a high temperature resistant non-toxic silicone rubber sealing ring, sealing performance is excellent. The insulation layer of the oven adopts superfine glass wool, with good heat preservation performance.
  • The temperature in the oven is constant at the set value, and the bell alarming after exceeding the limit.
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Vacuum Oven Drying Flow Chart

Vacuum Drying Oven Flow Chart

Technical Parameters

ITEM Specification
FZG-10 FZG-15 FZG-20
Interior size of the chamber (mm) 1500×1060×1220 1500×1400×1220 1500×1800×1220
Exterior size of the chamber (mm) 1924×1720×1513 1513×1924×2060 1924×2500×1513
Layers of baking shelf 5 8 10
Interval of the baking shelf (mm) 122 122 122
Baking tray size (mm) 460×640×45 460×640×45 460×640×45
Number of baking trays (pcs) 20 32 48
Drying capacity (kg) 50 80 120
Permitted pressure inside the pipe of the baking shelf (Mpa) ≤0.784
The operation temperature of the baking support ≤150℃
Weight (kg) 1400 2100 3200

Configuration Detail

1. Drying Oven

Outer Wall

δ1.5mm SUS304

Inner Wall

6mm SUS304, top curved

Standard Tray

640×460×45(mm)

Flange Sight Glass

Φ140×20mm

Door Hinge

FZG-20/15 SUS304

Door Press 

FZG-20/15 SUS304

2. Heat Exchange System

Drying Rack

Main pipe: Φ57×2mm SUS304

Sub-pipe: Φ18×2mm SUS304

3. Control System

Control Cabinet

Q235 Steel

Electrical Component

Siemens

Temperature Instrumentation

4. Auxiliary System

Insulation Material

Aluminum silicate fiber

Vacuum Port 

DN 80 SUS304

Safety Valve Interface

6

Sealing Material

Silicone rubber

Hot Water Inlet & Outlet

DN40 SUS304

Discharge Port

DN40 SUS304

Cleaning Interface

DN20 SUS304

Bimetal Thermometer

WSS-401

Vacuum Gauge

YZ60

Water Inlet Valve

DN40 SUS304, Temperature control valve switch

BATCH VACUUM DRYING

How a Vacuum Drying Oven Works

A vacuum drying oven combines a sealed chamber, heated shelves or trays and a vacuum system. Lower chamber pressure can reduce the boiling temperature of removable liquid, allowing suitable materials to be dried at a controlled product temperature. The actual cycle is established from the material, loading arrangement, vapor load and final moisture requirement.

1. Load the Trays

Distribute the batch at a defined depth and loading density so the proposed shelf area and heat-transfer path can be evaluated.

2. Apply Vacuum

Reduce chamber pressure according to the liquid properties, product behavior and vacuum-system capability.

3. Supply Controlled Heat

Heated shelves transfer energy to the trays while temperature and pressure are controlled for the material.

4. Remove Vapor and End the Batch

Vapor is routed to the specified vacuum and condensation arrangement until the confirmed endpoint is reached.

ENGINEERING INPUTS

Vacuum Drying Oven Selection Requirements

Material and Moisture

Composition, physical form, initial and target moisture, thermal sensitivity, batch mass, bulk density and product-contact requirements.

Loading and Cycle

Tray dimensions, fill depth, number of trays, loading method, allowable product temperature, vacuum profile and drying-time target.

Vapor and Safety Review

Water or solvent identity, vapor load, boiling behavior, flammability, toxicity, materials compatibility, condenser or recovery needs and area classification.

Utilities and Quality

Heating medium, cooling water, electrical supply, vacuum source, controls, cleaning method, documentation and installation country.

Request a Vacuum Oven Application Review

Send your material, batch, moisture, temperature, solvent and utility data for a configuration discussion.

Send Drying Requirements

TECHNICAL QUESTIONS

Vacuum Drying Oven FAQs

What materials can be evaluated for vacuum oven drying?

Vacuum oven drying can be evaluated for heat-sensitive powders, granules, pastes, components and other batch-loaded materials when lower-temperature moisture removal or reduced oxygen exposure is important. Suitability depends on the material, solvent, loading depth and required final condition.

How does a vacuum drying oven work?

Material is loaded on heated shelves or trays inside a sealed chamber. Reduced chamber pressure lowers the boiling temperature of removable liquid, while controlled shelf heat supplies energy for evaporation. The vacuum and vapor-handling system then removes the generated vapor.

Can a vacuum drying oven handle solvent-containing material?

Only after the solvent, vapor load, flammability, toxicity, materials compatibility, condensation or recovery method and applicable area classification have been reviewed. A standard water-service configuration must not be assumed suitable for combustible or hazardous solvent duty.

What data is needed to select a vacuum drying oven?

Provide material composition, initial and target moisture, batch mass, bulk density, tray loading depth, allowable product temperature, drying-time target, liquid or solvent properties, vacuum requirement, heating medium, cleaning needs, utilities and installation country.

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