Precision Laboratory Hot Air Ovens
Engineered with heavy-duty triple-walled stainless steel construction and self-tuning PID microprocessor controllers. Delivers uniform temperature profiles from ambient +5°C to 450°C for rapid drying, thermal testing, and pyrogen-free microbial decontamination.
Hot Air Oven Construction Architecture
Built for zero thermal leakages, maximum heat preservation, and precise multi-point temperature distribution.
Triple-Walled Cabinet
Heavy-duty SS 304 outer and inner body fitted with heat-resistant silicone door gaskets and ergonomic slam latches.
3″ High-Density Glasswool
High-grade thermal insulation densely packed between inner chamber and outer shell to eliminate thermal radiation losses.
Tubular Heating Elements
Kanthal A1 Nichrome air heaters positioned symmetrically in heating ducts to generate continuous dry heat energy.
Motorized Blower System
High-CFM balanced motor forced air circulation ensures fast heat absorption and minimal spatial variation.
PID Microprocessor Controller
Dual digital display showing process set point (SP) and real-time process value (PV) with auto-tuning capability.
Adjustable Wire Trays
Electropolished stainless steel mesh shelves adjustable at varying heights to accommodate large lab glassware.
Precision Pt-100 RTD Sensor
Class A duplex Pt-100 temperature sensor offering millidegree-accurate continuous temperature readings.
Over-Temperature Cutoff
Independent hydraulic safety thermostat cuts off power automatically if temperature exceeds safe limits.
How Dry Heat Sterilization Works
Dry heat sterilization relies on thermal conduction. Radiant thermal energy is absorbed by the outer surfaces of items placed inside the chamber and gradually penetrates layer-by-layer toward the core until microorganisms undergo oxidative destruction and cell wall denaturation.
Chamber Loading & Gasket Sealing
Glassware, metal tools, or powders are loaded onto perforated trays leaving 30% gap for airflow.
PID Controller Parameter Setting
Operator sets target soak temperature (e.g., 160°C for 2 Hours, or 180°C for 30 Min) and timer duration.
Convective Circulation & Holding Soak
Hot air circulates continuously. Once set point is reached, the soak timer starts holding precise heat balance.
Auto Alarm Shutoff & Controlled Cooldown
Heating elements turn off automatically. Buzzer alerts the operator once safe handling temperature is reached.
Laboratory Sterilization Reference
Recommended cycles: 160°C (120 min) | 170°C (60 min) | 180°C (30 min)
Hot Air Oven Convection Types
Select the optimal circulation dynamics based on your sample physical properties and cycle times.
Natural Gravity Convection
Relies on thermal buoyancy where warm air rises naturally without blowers. Best suited for fine powders, light granules, or delicate samples that would blow away in forced air.
Forced Blower Convection
Utilizes a continuous motor blower fan to recirculate pre-heated air across all shelves. Delivers rapid heating, minimal temperature drop, and fast drying.
Side Draught High Velocity
Features horizontal side-to-side airflow channels for rapid heat recovery upon door opening. Engineered for heavy industrial or high moisture evaporation tasks.
Hot Air Oven Requirement Assistant
Configure your specific lab applications to receive an instant recommended configuration and specification match.
Forced Convection Oven + 21 CFR Part 11 Data Logger
Ideal for pharmaceutical compliance with uniform air distribution and audit-ready data tracking.
Hot Air Oven Range Specifications
Standard dimensions and capacities available. Custom chamber sizes manufactured upon request.
| Model Series | Circulation Type | Standard Capacities | Temp Range | Construction / MOC | Action |
|---|---|---|---|---|---|
| TI-HO-NC Series | Natural Convection (Gravity) | 28L, 45L, 91L, 125L, 250L, 340L | Ambient +5°C to 250°C | Triple Walled SS 304 Inner, 3″ Insulation | |
| TI-HO-FC Series | FORCED Blower Circulation | 45L, 91L, 125L, 250L, 340L, 450L | Ambient +5°C to 300°C | Triple Walled SS 304 / SS 316 Option | |
| TI-HO-SD Series | Side Draught High Velocity | 125L, 250L, 450L, 800L Custom | Ambient +5°C to 450°C High Temp | Heavy Gauge SS 316, Ceramic Fiber Insulation |
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Tempo Technical Sales Team