Clean hot-air circulation ovens DOF-72, DOF-150 and DOF-270 with 99.97% filtration at 0.3 μm for sample drying, electronic-material baking and cleaner processing environments
Clean hot-air circulation ovens DOF-72, DOF-150 and DOF-270 with 99.97% filtration at 0.3 μm for sample drying, electronic-material baking and cleaner processing environments

Clean Hot Air Circulation Oven DOF-72 / DOF-150 / DOF-270

Clean Hot Air Circulation OvenThe DOF-72, DOF-150 and DOF-270 clean hot air circulation ovens are designed for sample drying, electronic-material baking, component dehumidification and material pretreatment where a cleaner process environment is required. Forced-air circulation and a high-efficiency filter help reduce particulate contamination during heating. The series offers 72 L, 150 L and 270 L chamber capacities, a stated filtration efficiency of 99.97% at 0.3 μm, and an operating temperature range of 40°C–250°C. Confirm the configuration and suitability for your material and process before ordering.Cleaner drying environmentDesigned for processes that require attention to airborne particles during drying, baking or component dehumidification. Confirm cleanliness requirements against your actual process.High-efficiency filtrationThe stated filter efficiency is 99.97% at 0.3 μm. A sealed filter structure and differential-pressure gauge support inspection of the filtration system.Three chamber sizesChoose among DOF-72 (72 L), DOF-150 (150 L) and DOF-270 (270 L) according to sample dimensions, batch quantity and installation space.How to select a clean hot air circulation ovenFor drying or baking processes with elevated cleanliness requirements, define the material, sample dimensions, quantity per batch, target temperature, drying time, cleanliness criteria, site power and installation space. Compare these needs with the chamber volume and internal dimensions below. For general laboratory sample drying, a precision oven may also be considered; for vacuum or reduced-pressure drying, evaluate a vacuum oven. Confirm final selection against the sample and process conditions.SpecificationsModelDOF-72DOF-150DOF-270Air circulationForced-air circulationOperating temperature40°C–250°CTemperature control accuracy±1°CInner / outer chamberBright-finish stainless-steel inner chamber; outer cabinet available in stainless steel or baked-enamel steelTemperature controllerImported microcomputer P.I.D. dual display with SSR controlTemperature sensorPT platinum temperature sensorHeaterHigh-temperature-resistant nickel-alloy stainless-steel heating elementThermal insulationImported multilayer rock wool and ceramic woolFilter system99.97% stated efficiency at 0.3 μm; high-temperature silicone gasket, sealed filter-paper support and imported analog differential-pressure gaugeSafety protectionPower protection, independent over-temperature protection, motor protection and over-current protectionBlower motor1/4 HP1/2 HP1 HPInternal dimensionsW450 × D400 × H400 mmW600 × D500 × H500 mmW600 × D500 × H900 mmExternal dimensionsW850 × D580 × H1100 mmW1000 × D680 × H1250 mmW1000 × D680 × H1720 mmChamber capacity72 L150 L270 LPower / current220 V / 12 A220 V / 18 A220 V / 28 AAccessoriesUpper and lower adjustable shelves with support bracketsTypical users and product featuresApplications: High-tech electronics, display panels, biotechnology and pharmaceutical industries, and other processes requiring cleaner drying conditions.Features: Forced-air circulation works with a filtration structure and safety protection. Confirm process compatibility based on the material and required cleanliness level.Frequently asked questionsQ1: What applications suit a clean hot air circulation oven?Sample drying, electronic-material baking, component dehumidification and material pretreatment where environmental cleanliness matters. Confirm suitability for your material, target temperature and process goal.Q2: How do I choose between DOF-72, DOF-150 and DOF-270?Compare chamber capacity and internal dimensions: 72 L, 150 L and 270 L respectively. Verify sample size, batch load, cleanliness requirements and available space.Q3: How does a clean oven differ from a standard hot air circulation oven?A clean oven emphasizes cleanliness during drying or baking, while a standard circulation oven is commonly used for general industrial drying, batch baking or process heating. Compare the actual construction and cleanliness needs for your application.Q4: What information should I provide for model selection?Provide material type, sample dimensions, quantity per batch, target temperature, drying time, cleanliness criteria, site power, installation space and any special process requirements.Specifications are summarized from manufacturer information currently available. Confirm the exact temperature configuration, dimensions, accessories, demonstration-unit availability, stock, lead time and service options for the selected model.Contact Fulcrum Technology for specifications and a quotationRelated model: Hot Air Circulation Oven DOS30 / DOS45 / DOS60

Clean Hot Air Circulation Oven

The clean hot air circulation oven is designed for sample drying, electronic-material baking, component dehumidification, material pretreatment and quality-control processes where a clean drying environment is important. Choose among DOF-72, DOF-150 and DOF-270 based on sample size, chamber capacity, target temperature, circulation method, cleanliness requirements and operating conditions. Confirm the final selection for the samples, drying objective and quality-control process.

Clean Drying Requirements

Suitable for samples sensitive to dust, contamination or the cleanliness of the drying environment. Evaluate according to cleanliness requirements, sample characteristics and process conditions.

Filtration Performance

Rated filtration efficiency is 99.97% (0.3 μm), for applications that need to reduce contamination risks in the drying environment.

Three Capacity Options

DOF-72, DOF-150 and DOF-270 provide 72 L, 150 L and 270 L capacities. Choose according to sample quantity and chamber space.

How to Choose a Clean Hot Air Circulation Oven

If the drying or baking process requires a cleaner environment, consider a clean hot air circulation oven. For model selection, provide the sample material and dimensions, batch quantity, target temperature, drying time, cleanliness requirements, available power and installation space. A precision oven may suit general sample drying; consider a vacuum oven for vacuum drying. Confirm the final selection based on the sample and process objective.

Specifications

ModelDOF-72DOF-150DOF-270
Circulation methodForced-air circulation
Operating temperature range40°C–250°C
Temperature control accuracy±1℃
Chamber and exterior materialsBright-finish stainless-steel interior; exterior available in stainless steel or baked-enamel steel plate
Temperature controlImported microcomputer P.I.D. controller with dual display and SSR control
Temperature sensorPT platinum temperature-sensing probe/controller
HeaterHigh-temperature-resistant nickel-alloy stainless-steel heating element
Insulation materialImported rock wool and ceramic-fiber multi-layer insulation for heat retention
Filter performanceHigh-temperature-resistant silicone gaskets and an aluminum spacer seal the filter-paper support; filtration efficiency reaches 99.97% (0.3 μm). Imported analog differential-pressure gauge.
Safety featuresPower protection, independent over-temperature protection, motor protection and overcurrent protection
Fan motor1/4HP1/2HP1HP
Internal dimensionsW450 × D400 × H400mmW600 × D500 × H500mmW600 × D500 × H900mm
External dimensionsW850 × D580 × H1100mmW1000 × D680 × H1250mmW1000 × D680 × H1720mm
Chamber capacity72L150L270L
Power / current220V／12A220V／18A220V／28A
AccessoriesUpper/lower adjustable shelves and support frame

Applications and product features

Applications:High-tech electronics, display-panel, biotechnology and pharmaceutical applications that require a cleaner drying environment.

Features:Forced-air circulation is combined with a filtration structure and safety protections. Evaluate suitability according to sample conditions and process requirements.

Frequently Asked Questions

Q1: What applications suit a clean hot air circulation oven?

It suits sample drying, electronic-material baking, component dehumidification, material pretreatment and quality-control processes that require a clean environment. Confirm suitability based on the sample, target temperature and process objective.

Q2: How do I choose between DOF-72, DOF-150 and DOF-270?

Start with chamber capacity and internal dimensions. DOF-72 is 72 L, DOF-150 is 150 L and DOF-270 is 270 L. Confirm the final choice based on sample dimensions, batch size, cleanliness requirements and available space.

Q3: How does a clean oven differ from a standard hot air circulation oven?

A clean oven focuses on cleanliness in the drying or baking environment, while a standard hot air circulation oven is commonly used for industrial drying, batch baking or process heating. Confirm the actual differences by model design, cleanliness requirements and specifications.

Q4: What information should I provide before selecting a model?

Provide sample material and dimensions, batch quantity, target temperature, drying time, cleanliness requirements, available power, installation space and any special process conditions to help assess suitable specifications.

Specifications are summarized from the manufacturer’s page and currently confirmed information. Confirm the temperature version, chamber dimensions, accessories, demonstration models, stock, lead time and repair services for the selected model.

Contact Fulcrum Technology for specifications and a quotation

Related model: Hot Air Circulation Oven DOS30 / DOS45 / DOS60

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