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Thermoplate™ Laboratory Hot Plate




MHI offers a variety of specialized surface heaters.

Thermoplate™ products offer temperatures up to 1250°C with a standard models surface  dimensions of 9 "x 9" 208/220/230/240V supply is required.  Now MHI offers much larger custom Thermoplate.    Please email with your request or please discuss at 513-772-0404 with specilaist.  For these very large units you may need a 400/415/480/600 V three phase supply. 

HeatPad™ Microheaters Products offer temperatures up to 1100°C in the PH-G4 models with 1" -3.5" sizes.   The THM models can be used to much higher temperatures.

GlowPanel™ products are specialized flat coiled heaters offering temperatures up to 1400°C.

Request Thermoplateā„¢ Quote



Thermoplate™ Features

MHI Thermoplates™ are an industrial grade, high power, high temperature hot plate capable of reaching temperatures of 1250°C within 4 seconds after initially reaching full power. Ideal for use as a laboratory hot plate. Thermoplates™ feature a stainless steel construction and electronic controls. Thermoplates™ are offered with quartz or ceramic tops, both exhibiting excellent uniformity.

General Information
  • Radiative Power: High power relative to other hot plates available (3 kW for Thermoplate).  Please request quote.
  • Temperature:  Up to 1250°C depending on model.
  • Construction:  Stainless steel construction.  See pictures below for display of complex ceramics mated for high temperature and thermal expansion considerations.
  • 4 Second heat-up rate after reaching full power.
  • Sleek Quartz or Radiative Ceramic top for easy cleaning and rapid heat up.
  • Spiral elements give extremely uniform temperature distribution.
  • Special high uniformity RTP heaters are also available. 
  • Independently locatable control electronics shown below.

Internal features of the thermoplate construction include combinations of special ceramics and metals with the UltraSpiral heating element as shown in pictures below.



Picture above is a Thermoplate

Click for Ceramic Containers and Plates

(On-line purchase)

Complex Heating Element Provides Excellent Uniformity

in Thermoplate.  Years of Use.

Superior Craftsmanship.
MHI Technology in High Temperature Metal-Ceramic composites and thermal matching abiity ensure long term service life.

Thermoplate™ Model Numbers

Thermoplate™ Models

Thermoplates™ feature MHI's patented heating elements, allowing for optimal performance. Ideal for use as a lab hot plate. Thermoplates™ feature a rugged stainless steel base and a ceramic top. Standard input voltages are 220/230/240V. 

High Temperature Hot-plate Models by MHI

HP220 Models with 9" square top


Heated Region 9"L x 9"W

HeatPad-THM-500-1 (stand included)

Heated Region 1" Diameter

Model Number Temperature Heated Surface Dimensions
HP220-GAXP-1000 Up to 1000°C (1832°F) 9"L x 9"W with comprehensive controls
HP220-HIGHBO-1250 Up to 1250°C (2282°F) 9"L x 9"W with comprehensive controls
HeatPad-THM-500-1 Range 1000-1600C 1" Diameter with comprehensive controls

Replacement elements for the HP220-HIGHBO-1250 Thermoplate™ and HeatPad-THM-500-1 are available here.

HeatPad™ Microheater

HeatPad™ Microheater

HeatPad™ Microheaters are classified as semi-finished modules, which needs to be installed only by certified electricians who are congnizant of the dangers that come from exposed electrical and thermal systems. Please do not hesitate to have your electrician contact MHI.

HeatPad™ Microheaters are a small scale spot heater. The HeatPad™ is often used as a localized or substrate heater due to the small size. Using around 100 watts, the HeatPad™ is highly efficient. HeatPads™ feature integrated thermocouples.

HeatPad™ Microheaters (1000°C  and 1600°C Models)

PH-GAXP - Thermopad

Unique high watt density, one-sided circular spot heater
1"-3.5" models
Design with terminals as shown
Substrate Heater

New controls available. Please use with integrated thermocouple and feedback controls.


For large area please click on Thermoplate

Maximum Temperature

Key Selection Feature

General specifications: 

PH-G4 Models ~1150°C and 400 Watts for largest size


HeatPad-THM-500-1  High Wattage, High Temperature

THM high temperature Models

PH-G4 models vailable in 1" - 3.5"


HeatPad-THM models avialable in 1" diameter size

Buy Online at BuyMHI



The MHI GlowPanel is a versaitile, robust high power GAXP™ ribbon coil heater rated up to 1400°C use. The heating element is supported by a patented non-reactive ceramic base plate that is provided with the heating element.  Use horizontally or vertically as desired.

Model # Size Power Maximum Temp
Ceramic Base
14" x 14" x 2"
Heater Size about 200mm diameter for
GP- GAXP-6.5
~5kW 1400°C
Thermocouple access point in ceramic base for reference temperature


This class of GAXP™ Heater is classified as a semi-finished module, which needs to be installed only by certified electricians who are congnizant of the dangers that come from exposed electrical and thermal systems. Please do not hesitate to have your electrician contact MHI.

Please email us or call (513) 772-0404


Control Systems

MHI offers two types of controls with our Thermoplates™ and Microheaters. Programmable electronic control panels come standard with some models. MHI DACS software offers heater controls, step programming, logging and a number of other features, and is compatible with most MHI products.

MHI Furnace Controls
Many of MHI's electronic furnace controllers feature multiple voltage inputs, overtemperature controls, programmable cycles and a number of other features. For more information about MHI's control panels, Contact Us or See More Information. Furnace Controller

MHI Data Acquisition and Control Software (MHI DACS)
MHI thermal devices are compatible with MHI DACS for furnace controls, step programming, data logging and more. DACS also allows for remote furnace control, allowing one central location to control multiple devices. MHI DACS
MHI DACS Software


Request Thermoplate™ Quote

Customer Feedback

Hot plate:
“...experience was that the hot plate center would get to temperature first then over time the edges would come up to temperature and be uniform. I believe once steady state was reached the uniformity was +/- 2 or 3C."

Please call MHI on details and full explanation. The uniformity depends on the thermal environment and other factors.

Read more testimonials

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©Micropyretics Heaters International Inc. 1995 - 2016
750 Redna Terrace Cincinnati, OH 45215, USA
Telephone: 513-772-0404 | Fax: 513-672-3333