What Is a Laboratory Hot Air Oven?

A hot air oven is a piece of laboratory equipment used for sterilization, drying, and heating by circulating hot air inside a chamber.
Typically, these ovens can reach temperatures up to ~250 °C (sometimes more, depending on model).
Construction: usually double-walled (inner chamber + outer shell) with insulation (e.g., mineral wool) in between.
Control: temperature is controlled via a digital controller (or thermostat), and many models have a fan or forced-convection system for uniform heat distribution.
The inner chamber is often made of stainless steel (for durability and cleanliness), while the outer body can be mild steel powder-coated.

Price Range for Hot Air Ovens (India)

Here’s a breakdown of typical hot air oven prices in India, based on different sources:

H.L. Scientific Industries
- According to Our website, H.L. Scientific sells a laboratory hot air oven (model HL-2032, 60 L) for ₹11,000 per piece.
- Specs: Temperature range = Ambient to 250 °C; inner chamber material = Stainless Steel; outside body = Mild Steel; digital temperature controller.

Location: Ambala, Haryana, India. (H.L. Scientific has a manufacturing presence there.)
Product Range: We manufacture laboratory hot air ovens, among other lab instruments.
Model Highlight: The HL-2032:
- 60 L chamber
- Ambient to 250°C temperature range
- Digital temperature controller
- Stainless steel inner chamber, mild steel outer body (powder-coated)
Pricing Strategy: Relatively affordable compared to more premium brands; their 60 L oven at ₹11,000 is quite competitive for a lab-grade oven.

When evaluating hot air ovens and their costs, here are some key factors that determine the price:

Capacity / Volume: Larger internal volume (in litres) means more material and larger heater, so higher cost.
Temperature Range: Ovens that go to higher max temperature or offer very fine temperature control cost more.
Construction Quality:
- Inner chamber material (SS vs MS)
- Insulation quality (thickness, type of insulating material)
- Door design and gasket quality (for better sealing)
Control System: Digital PID controllers, timers, over-temp safety, and better sensors increase cost.
Air Circulation: Forced-convection (with fan) ovens give more uniform heat but cost more than simple conduction ovens.
Brand / Manufacturer: Established, reliable brands with better after-sales support or calibration may be more expensive.
Accessories: Shelves, trays, data-logging ports, RS-485 or other interfaces can add to cost.

If you need a basic lab oven for drying or sterilization, H.L. Scientific’s 60 L model (₹11,000) is very cost-effective.
For more precise temperature control or higher capacity, you might want to consider other brands (like Prime Scientific, Tech Nation, or Sunline) — although cost goes up.
Always check warranty, after-sales support, and calibration certificate (if needed for lab work) — the cheapest oven might not be the most cost-effective in the long run if maintenance is poor.