Hot Air Sterilizer - Dry Heat Sterilizer with Forced Convection - 34L to 188L - RT+10 to 250°C

The Master Science Hot Air Sterilizer uses high-temperature dry heat to sterilize glassware, metal instruments, powders and other heat-stable items that should not be exposed to moisture. Dry heat destroys microorganisms mainly by oxidizing the cell protoplasm, so a full load can be sterilized within a set heating time.

Five chamber sizes from 34 L to 188 L are available, all with a brushed stainless steel interior, forced air convection and PID temperature control from ambient +10°C to 250°C. A large LCD screen and menu-based operation make the Master Science Hot Air Sterilizer quick to programme for routine sterilization.

Technical Specifications

Technical data of the Master Science Hot Air Sterilizer:

• Brand: Master Science
• Model Number: MSDOF-HAS20ASWISS, MSDOF-HAS50ASWISS, MSDOF-HAS70ASWISS, MSDOF-HAS100ASWISS, MSDOF-HAS200ASWISS
• SKU: MSDOF-HAS20ASWISS, MSDOF-HAS50ASWISS, MSDOF-HAS70ASWISS, MSDOF-HAS100ASWISS, MSDOF-HAS200ASWISS
• Brand: Master Science
• Models: MSDOF-HAS20ASWISS (34 L), MSDOF-HAS50ASWISS (51 L), MSDOF-HAS70ASWISS (70 L), MSDOF-HAS100ASWISS (138 L), MSDOF-HAS200ASWISS (188 L)
• SKU: MSDOF-HAS20ASWISS, MSDOF-HAS50ASWISS, MSDOF-HAS70ASWISS, MSDOF-HAS100ASWISS, MSDOF-HAS200ASWISS
• Circulation: Forced air convection
• Internal Dimensions (W × D × H): 34 L: 340 × 320 × 320 mm; 51 L: 420 × 350 × 350 mm; 70 L: 400 × 360 × 500 mm; 138 L: 550 × 450 × 560 mm; 188 L: 600 × 550 × 570 mm
• External Dimensions (W × D × H): 34 L: 630 × 570 × 500 mm; 51 L: 830 × 710 × 700 mm; 70 L: 540 × 550 × 870 mm; 138 L: 845 × 700 × 730 mm; 188 L: 890 × 730 × 780 mm
• Temperature Range: RT+10 to 250°C
• Fluctuation: ±0.5°C
• Resolution: 0.1°C
• Uniformity: ±2.5%
• Sensor: PT100
• Controller: PID with LCD display
• Timer: 1 to 9999 min
• Interior / Exterior: Stainless steel / cold-rolled steel with anti-static coating
• Shelves: 2
• Safety Devices: Leakage protector, over-temperature alarm
• Power Supply: AC 220/110 V, 50/60 Hz
• Power Consumption: 500 W / 750 W / 1050 W / 1500 W / 2000 W

Key Benefits

• Even heating: A high-efficiency fan with back suction and bottom vertical air supply improves temperature uniformity.
• Lower energy use: Silicone door seals and adaptive control reduce heat loss and power draw.
• Easy to programme: LCD menu, fixed-value or timed operation, and an END alert with beep at completion.
• Safe surfaces: Thick aluminium silicate insulation keeps the outer case cooler.

For drying applications without sterilization, see our forced air drying oven.

Product Features

Control

• Large LCD with real-time parameters
• Screen self-lock function
• Fixed-value and timed operation
• °C / °F conversion
• Self-diagnosis with fault display

Air Circulation

• High-quality fan with large impeller
• Back suction with bottom vertical air supply

Construction

• Laser-cut one-piece cabinet
• Brushed stainless steel interior with rounded corners
• Removable stainless steel shelves, adjustable at 30 mm minimum spacing
• Sliding bayonet shelves to prevent tilting
• Tempered double-layer viewing window
• Anti-scald door handle
• Stackable design

Safety

• Leakage protection device
• Independent internal temperature limit with audible alarm
• High, low and over-temperature alarms

Applications

The Master Science Hot Air Sterilizer is used for:

• Dry heat sterilization of laboratory glassware
• Sterilizing metal instruments and tools
• Sterilizing sample bottles and containers
• Sterilizing powders, oils and other moisture-sensitive materials
• Microbiology, pharmaceutical and clinical laboratories

Standard Accessories Included

• Hot air sterilizer main unit
• 2 stainless steel shelves
• Leakage protector

Optional Accessories

• Intelligent touch screen with programme setting and data storage
• Programme controller for up to 30 programmes
• Printer or RS485 port (one of the two)
• Independent temperature limit controller
• Test hole

Problems the Master Science Hot Air Sterilizer Solves

Not every item can go into a steam autoclave. The Master Science Hot Air Sterilizer helps where moisture is a problem:

• Moisture damage to instruments: Dry heat sterilizes without steam, avoiding corrosion and wet loads.
• Uneven temperature in the chamber: Forced convection with a large impeller fan keeps heat uniform.
• Hot outer surfaces: Thick insulation lowers the cabinet surface temperature.
• Overheating risk: An independent temperature limit stops heating and sounds an alarm.