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Waste management: Radiation Gas-burning Small-type Medical Waste Incinerator

Waste management: Radiation Gas-burning Small-type Medical Waste Incinerator


Solar-Powered Solutions:
Small-Type Medical Waste Incinerator

Featuring a low running cost and easy maintenance, Stella Environment Corporation’s Radiation Gas-Burning Small-Type Medical Waste Incinerator is ideal for areas where the energy supply is not stable or even available. It is an efficient small-type incinerator with chimney-top structure with the following characteristics:

congo• Low concentration of dioxin emissions in compliance with Japanese (Dioxin) Emission Standards
• Extremely safe to operate
• Easy to deposit waste
• Low fuel consumption
• Easy maintenance
• Solar powered
• Highly efficient
• Compact design
The incinerator is able to burn 5kg max (wet waste 40%) per one-hour cycle at 800-900˚C. The burning capacity will vary depending on the materials that are contained in the waste batch.

Major Features and Advantages

I. Low Fuel Consumption

It is highly efficient, consuming only 7L of diesel oil/hour/cycle or 5kgs of wood per cycle. In addition, it can function on either gas oil or biomass fuel. No other incinerators can offer these options for temperatures of more than 800℃ with a residual gas burning time over two seconds.

II. Easy Waste Depositing/High Operational Safety

This machine is easy to use by anyone with minimal training. Waste deposits are quick and operations are extremely safe. And, with such efficient operation, there is a decrease in the cost associated with running it due to low energy consumption and ease of use. Technical guidance is given to workers to learn how to use the machine.

III. Solar-Powered Unit

Because this equipment is solar-powered, it can be used in areas where the energy supply is unstable. Energy produced by sunlight can be stored in the machine for later use – much like solar panels on a home. 

IV. Affordable Running Cost

Featuring a low cost of operation, Stella’s Radiation Gas-Burning Small-Type Medical Waste Incinerator only costs $2.5/cycle and $3750 for the year with wood and $10.5/cycle and $15,700/year for oil.

V. Easy Maintenance

The main body of the incinerator comes with very little maintenance requirements. In fact, just four components (Disposal Box, Buffer Plate, Burner Chip and Temperature Sensor) must be changed every four years. 

VI. Small and Efficient

Despite its small size, Stella’s incinerator is highly efficient and produces a high output.
Stella Environment Corporation’s Radiation Gas-Burning Small-Type Medical Waste Incinerator has been tested in Micronesia, Cambodia, and the Democratic Republic of Congo. It is most effective in areas that don’t have access to electricity but do have access to plenty of sunlight. It is vital in waste management and adequate waste separation.

Technology Data

Technology data

Conceivable applications

The features of the small-type incinerator with chimney-top structure are as follows.

  1. Low concentration of dioxin emissions that complies with Japanese (Dioxin) Emission Standards.
  2. Easy waste depositing / High operational safety
  3. Functions on gas oil or biomass fuel. Low fuel consumption.
  4. Solar-powered electricity accessory which enables the operation even in areas where energy supply is not stable.

Competitive advantage


Note: This comparison chart is solely based on in-house estimates.  

Characteristics of STELLA’s incinerator:

  1. Low running cost
  2. Easy maintenance of the main body. Only 4 parts (Disposal Box, Buffer Plate, Burner Chip, & Temperature Sensor) need to be changed every 4 years.
  3. Choice of fuel (Diesel Oil or Biomass) – no other incinerators support these options while maintaining over 800℃ temperatures and residence time of burning gas over 2 seconds.
  4. Small but highly efficient.


Burning capacity:

5kg max (wet waste 40%) / 1 hour cycle / 800-900˚C (depending on the materials contained in the waste batch).

Fuel consumption:

Diesel oil – 7L / hour / cycle

Biomass – approx. 5kgs of wood / cycle

Technical maturity / Past record of introduction

The past sales records are as follows:

2007     Tonga                          3 units

2007     Tuvalu                         1 unit

2007     Vanuatu                        2 units

2008     Solomon Islands                 1 unit

2009     Fiji                             3 units

2010     Cambodia                      26 units

2010     Kiribati                         1 unit

2010     Laos                            1 unit

2015     Micronesia                      2 units

2016     Democratic Republic of Congo     1 unit



Micronesia Memorial Hospital, Kosrae







Kean Svay Referral Hospital






Democratic Republic of Congo


Lubumbashi University Hospital






Conceivable risk


Information on patent related to this technology

Japan Patent no. 4755158 for “Small-type Incinerator with Chimney-top Structure” (Registered on June 3, 2011)

Company Data

Company data

Address COURTYARD HIROO 3A 4-21-2 Nishiazabu, Minato-ku, Tokyo 106-0031 JAPAN
Capital JPY 27,500,000
Contact person Mr. Takuya IKEDA / Mr. Hisatoshi SHIMASE
TEL: +81 3 6805 0734 / +81 3 5468 5463
Number of employees  7
Date of company foundation  June, 2005
The type of business
  • Manufacturing & supply of small-type medical waste incinerators
  • Supply and installation of Mitsubishi electric PV solar systems and solar LED street lighting system

Modality of business transaction


In Cambodia, we partnered with Europ Continents and delivered a locally manufactured model in February 2015. We are working to develop such business models in other countries, to make costs competitive, and improve maintenance support.


Schematic illustration of the technology



Contact Person(s)

Mr. Takuya IKEDAE-mail:
Mr. Hisatoshi SHIMASEE-mail:

*Please mention that you saw UNIDO's website when making the first contact with the company.

Registered Category

  • Environmental Technologies : Waste treatment and management