The Across International HP9 Digital Heated Magnetic Stirrer is a high-performance laboratory hot plate stirrer designed for precise temperature control and efficient magnetic mixing. By generating a rotating magnetic field beneath the heating surface, the unit spins a PTFE-coated stir bar inside glass vessels to create uniform liquid agitation without mechanical contact.

Magnetic stirrers are widely used in chemistry, biology, pharmaceutical research, and laboratory testing because they offer quiet operation, low maintenance, and minimal contamination risk compared to mechanical stirring systems.

The HP9 model features PID digital temperature control, adjustable stirring speeds up to 2000 RPM, and a large 9-inch ceramic-coated aluminum heating plate capable of reaching temperatures up to 350°C. With a maximum stirring capacity of 1.5 gallons, this model is ideal for larger laboratory mixing and heating applications.

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Key Features

Large Laboratory Hot Plate Stirrer

• Combines heating and magnetic stirring

• Large 9-inch heating surface

• Digital control for precise operation

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High Temperature Heating Plate

Temperature Range

• Ambient to 350°C

Heating Plate Diameter

• 9 inches

Material

• Ceramic-coated aluminum

Temperature Stability

• ±2% between liquid temperature and hot plate display

• Tested using Duratherm S in a 5L beaker over 2 hours

The ceramic-coated surface provides excellent chemical resistance and uniform heat distribution.

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High-Speed Magnetic Stirring

Stirring Speed Range

• 110 – 2000 RPM

Motor Type

• Brushless DC motor

Motor Power

• 40 watts

Maximum Stirring Capacity

• 1.5 gallons (water as media)

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Digital PID Temperature Controller

The HP9 uses an integrated PID control system for precise temperature regulation and stirring speed adjustment.

Display Features

• Digital temperature display

• Digital rotation speed display

Controller Type

• PID temperature controller

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External Temperature Probe

A PT100 thermocouple probe provides accurate temperature measurement directly inside the liquid.

Probe Specifications

• Cable length: 35 inches

• Probe length: 11 inches

• Probe diameter: 5 mm

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Advantages of Magnetic Stirring

Magnetic stirrers are commonly used in laboratories because they offer several advantages:

• Quiet operation

• Minimal maintenance

• No exposed moving parts

• Easy cleaning and sterilization

• Reduced contamination risk

Since glass does not interfere with magnetic fields, stir bars work efficiently in beakers, flasks, and laboratory reaction vessels.

Magnetic stirrers are ideal for:

• Chemical reactions

• Biological experiments

• Pharmaceutical preparation

• Laboratory solution mixing

• Sample preparation

For larger volumes or highly viscous liquids, mechanical stirring systems may be required.

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Electrical Requirements

Voltage

• 110V

Frequency

• 60 Hz

Phase

• Single phase

Power Consumption

• 750 watts

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Physical Specifications

Unit Dimensions

• 9 × 14.5 × 4.5 inches

Shipping Dimensions

• 16 × 20 × 9 inches

Unit Weight

• 13 lbs

Shipping Weight

• 25 lbs

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Safety Features

• Thermocouple failure protection

• Built-in fuse protection

• Stable ceramic heating surface

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Certifications

• ETL tested to UL and CSA standards (optional)

• CE certified

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Ideal Applications

The HP9 heated magnetic stirrer is ideal for:

• Chemical laboratories

• Pharmaceutical laboratories

• Biotechnology research

• University laboratories

• Industrial R&D labs

• Sample preparation and solution mixing

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What's Included

• 1 × Ai HP9 Digital Heated Magnetic Stirrer

• 1 × External Temperature Probe

• 1 × Internal Temperature Plug

• 1 × Boss Head

• 1 × 16" Stainless Steel Support Rod

• 2 × PTFE Coated Stir Bars

• 1 × PTFE Magnetic Stir Bar Remover

• 1 × 4-Prong Stainless Steel Clamp

• 1 × User Manual

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Warranty

• 1 Year Manufacturer Warranty