All incinerators

Addfield MP300

Built for clinical and hazardous waste rather than general refuse — the machine a hospital or an island clinic specifies, running to 450 kg over an eight-hour cycle.

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Throughput
300–450 kg per day
Cycle
Up to 450 kg in 8 hours
Chamber volume
0.76 m³
Manufacturer
Addfield · United Kingdom
The MP300 — finished in the red of Addfield’s medical range, with the front loading door on the right.
The MP300 — finished in the red of Addfield’s medical range, with the front loading door on the right.
  • An MP300 built into a shipping container with its wet scrubber, extraction fan, control panel and generator — the form in which a machine reaches an island.
    An MP300 built into a shipping container with its wet scrubber, extraction fan, control panel and generator — the form in which a machine reaches an island.
  • A row of MP300s before dispatch, showing the front door and its locking handles at working height.
    A row of MP300s before dispatch, showing the front door and its locking handles at working height.
  • Inside the primary chamber, looking in through the front door: firebrick on all faces, with the burner port in the rear wall.
    Inside the primary chamber, looking in through the front door: firebrick on all faces, with the burner port in the rear wall.

How it works

A front-loading machine, and that is the first difference from the batch incinerators above: the door is at working height and the chamber can be reloaded through the cycle rather than filled once in the morning. For a hospital producing waste all day rather than in one delivery, that is the difference between a machine that fits the day and one the day has to fit around.

The second difference is temperature. Its secondary chamber holds the flue gases at a minimum of 1,100 °C — 250 degrees above the agricultural machines — for two seconds. That is what clinical waste requires, and it is the figure a health authority will ask for.

Underneath the primary chamber runs Addfield’s Hot Hearth system, a double pass that carries heat below the floor of the chamber as well as around it. Their reason for it is high-moisture waste: an unheated floor leaves a cold spot, and a cold spot is where wet organic waste fails to burn out.

  • A primary chamber lined 220 mm deep in interlocking high-alumina firebrick — 40 mm thicker than the agricultural machines in this range.
  • A Hot Hearth double-pass system carrying heat beneath the chamber floor as well as around it, giving 360° heating and removing the cold spot where high-moisture waste fails to burn out.
  • A manually opening, securely locking front access door with a viewing port.
  • A secondary chamber holding the flue gases at a minimum of 1,100 °C for two seconds, with its own burnout burner and automatically controlled combustion air fans.
  • Two temperature sensor points, and automatic on-off control on both the waste ignition and Hot Hearth burners.

Built to order, not standard supply

  • Wet scrubber, for sites where the flue gases have to be treated as well as burned out.
  • Containerised installation — the machine, its scrubber, controls and generator built into a shipping container.
  • Fuel tank, 1,000 to 5,000 litres, for a site with no permanent fuel supply or as a backup to one.
  • Data logging on the control panel, where burn records have to be kept automatically.

Addfield builds these to order. Ask GreenWave for them at enquiry — they are specified before the machine is made, not fitted afterwards.

Full specification

Every figure below is Addfield’s. The datasheet is their own document, published here in full.

Download the datasheet

PDF, 1.0 MB · published by Addfield

Throughput
300–450 kg per day
Cycle
Up to 450 kg in 8 hours
Chamber volume
0.76 m³
Chamber
1.6 × 0.67 × 0.7 m
Loading
Front
Refractory
220 mm
Fuel
Diesel, LPG, natural gas or bio fuel
Gas retention
2 seconds at 1,100 °C
Afterburn
Complies with EU legislation
Burn rate
Under 50 kg/hour
Secondary chamber
1,100 °C minimum, 2-second retention
Hot Hearth
Double pass
Thermal capacity
390 kW
External size
3,156 × 1,150 × 1,950 mm
Height with stack
3,600 mm
Door aperture
675 × 550 mm
Weight
3.6 tonnes
Power supply
220–240 V single phase, 50/60 Hz
Fire brick
Grade E23, 42.5% alumina
Insulation board
25 mm
Certification
UKCA · CE · Defra approved · ISO 9001:2015 · ISO 14001:2015

The specification, against the rest of the range

Specifications for Addfield MP300 and the other models in this category. Rows are every figure any model quotes; an em dash means that model does not quote it.
SpecificationAddfield SBAddfield TBAddfield TB-ABAddfield MP300This modelAddfield G250
Chamber volume1.54 m³2.3 m³4.18 m³0.76 m³5.45 m³
Chamber1.6 × 1.1 × 0.93 m2.45 × 1.1 × 0.92 m2.45 × 1.6 × 0.92 m1.6 × 0.67 × 0.7 m2.4 × 1.7 × 1.7 m
LoadingTopTopTopFrontFront
Refractory180 mm180 mm180 mm220 mm191–226 mm
FuelDiesel, LPG, natural gas or bio fuelDiesel, LPG, natural gas or bio fuelDiesel, LPG, natural gas or bio fuelDiesel, LPG, natural gas or bio fuelDiesel, LPG, natural gas, bio fuel or dual fuel
Gas retention2 seconds2 seconds2 seconds2 seconds at 1,100 °C2 seconds
AfterburnComplies with EU legislationComplies with EU legislationComplies with EU legislationComplies with EU legislationComplies with EU legislation
Burn rateUnder 50 kg/hourUnder 50 kg/hour (UK); 50–75 kg/hour on export machinesUnder 50 kg/hour (UK); 50–75 kg/hour on export machinesUnder 50 kg/hour250 kg/hour
Secondary chamber850 °C minimum, 2-second retention850 °C minimum, 2-second retention850 °C minimum, 2-second retention1,100 °C minimum, 2-second retention
Thermal capacity144 kW216 kW288 kW390 kW
External size3,425 × 2,890 × 2,095 mm3,865 × 2,900 × 2,095 mm3,965 × 3,490 × 2,095 mm3,156 × 1,150 × 1,950 mm
Height with stack3,980 mm3,980 mm3,980 mm3,600 mm
Door aperture1,565 × 1,070 mm2,385 × 1,055 mm2,385 × 1,570 mm675 × 550 mm
Weight3.6 tonnes4.8 tonnes6.5 tonnes3.6 tonnes
Power supply220–240 V single phase, 50/60 Hz220–240 V single phase, 50/60 Hz220–240 V single phase, 50/60 Hz220–240 V single phase, 50/60 Hz
Fire brickGrade E23, 42.5% aluminaGrade E23, 42.5% aluminaGrade E23, 42.5% aluminaGrade E23, 42.5% alumina
Insulation board25 mm25 mm25 mm25 mm
CertificationUKCA · CE · Defra approved · ISO 9001:2015 · ISO 14001:2015UKCA · CE · Defra approved · ISO 9001:2015 · ISO 14001:2015UKCA · CE · Defra approved · ISO 9001:2015 · ISO 14001:2015UKCA · CE · Defra approved · ISO 9001:2015 · ISO 14001:2015CE marked
Load capacity750 kg per batch1,300 kg per batch2,000 kg per batch
Type approvalDefra, to EU Animal By-Products Regulations 142/2011Defra, to EU Animal By-Products Regulations 142/2011Defra, to EU Animal By-Products Regulations 142/2011
Refractory rating1,450 °C1,450 °C1,450 °C
Ash residueAbout 3% of the loaded volumeAbout 3% of the loaded volumeAbout 3% of the loaded volume

Rows here are the figures more than one machine quotes. 5 further figures are quoted for the Addfield MP300 alone and are in the full specification above. Figures for Addfield MP300 are Addfield’s published specification. See the manufacturer’s sheet. Confirm the figures that decide a purchase with GreenWave before ordering.

What GreenWave supplies

  • Specified for medical and pathological waste
  • Installation, testing and commissioning
  • Operator training and warranty
  • After-sales technical support and spare parts

Is the Addfield MP300 the right size for your property?

Request a site visitsales@greenwavemaldives.com

Every installation includes

  • Installation, testing and commissioning
  • Operator training and warranty
  • AMC, spare parts and after-sales technical support