Process equipment & thermal systems · Vapi, Gujarat · Since 1987
Alice Engineering WorksEst. 1987 · Vapi

Thermal equipment

Hot Air Generator Manufacturer in Vapi, Gujarat for Spray & Flash Dryers

Solid and liquid fuel fired hot air generators for dryers, ovens and process heating, designed for your air flow, temperature and fuel.

Clean, controllable hot air for drying and process heating

A hot air generator (HAG) burns fuel in a furnace and transfers the heat to air through a heat exchanger, giving a steady supply of hot air for spray dryers, flash dryers, tray dryers, fluid bed dryers and curing ovens. Indirect-fired designs keep the flue gas separate from the process air, which matters for products that must not be contaminated.

We engineer each hot air generator to your required air flow, outlet temperature and fuel, then fabricate, install and commission it. For existing units we offer repairs, heat exchanger replacement and efficiency improvements.

What we build

  • Solid fuel hot air generators

    For coal, wood, briquettes and agro-waste.

  • Liquid fuel hot air generators

    For furnace oil, LDO and HSD, with burner integration.

  • Indirect-fired HAGs

    Process air kept separate from flue gas, for chemical, food and pharma drying.

  • Dryer integration

    Ducting, blowers and controls matched to your dryer.

Why choose AEW for hot air generators

  • Designed to your air flow, outlet temperature and fuel
  • Indirect heat-exchanger designs for clean process air
  • Ducting and dryer connection supplied by the same team
  • Waste-heat recovery options to reduce fuel use
  • Local service and AMC support in the Vapi region

Industries & applications

  • Spray dryers
  • Flash dryers
  • Tray and fluid bed dryers
  • Dye and pigment drying
  • Chemical intermediates
  • Food and agro products
  • Curing ovens

FAQs: Hot Air Generators

What is the difference between a direct and an indirect hot air generator?

In an indirect-fired unit the flue gas passes through a heat exchanger and never touches the process air, so the hot air stays clean. Direct-fired units mix combustion gases with the air and suit products that can tolerate this.

Can you match a hot air generator to my existing dryer?

Yes. Share the dryer type, the air flow and temperature it needs, and we will design the HAG, ducting and blower to suit.

Which fuels can be used?

We build units for solid fuels such as coal, wood and briquettes, and for liquid fuels such as furnace oil and LDO.

Do you repair hot air generators?

Yes. We replace heat exchangers and refractory, and carry out efficiency improvements and AMC.

Have a drawing, datasheet or a problem to solve?

Send your requirement. We reply with a technical and commercial offer, usually within one working day.