Vapor Heat Treatment System for Sweet Potato Base Rot Disease

In February 2021, the National Agriculture and Food Research Organization (NARO) Agricultural Research Support Center published the “Sweet Potato Base Rot Disease Ecology and Control Measures – For Technicians (FY2020 Edition).” The latest FY2022 edition recommends “Vapor Heat Treatment at 48°C and 95% constant temperature and humidity for 100 minutes.”

For detailed treatment programs, please refer to the FY2022 edition (link to the latest version below).

For sweet potato vapor heat treatment, maintain a program that prevents heat damage to the tubers by closely balancing sterilization and damage temperatures. Ensure precise, uniform control to eliminate unevenness.

In 2021, our company collaborated with starch manufacturing companies, bio-seedling manufacturing companies, and others to conduct vapor heat treatment on 30 tons of sweet potatoes by January 2022, demonstrating its effectiveness. Furthermore, through independent testing, we improved accuracy and achieved the capability to process up to 500 kg in one chamber.

To prevent unnecessary steps, such as transferring the tubers and causing damage, we developed a technology allowing vapor heat treatment directly within the harvest containers typically used in production fields. This technology is registered as a utility model.

Additionally, to enable precise temperature control, the vapor heat treatment system uses electric heaters as a heat source.

Given the need for a carbon-neutral and decarbonized society, we have developed an energy-saving model that uses waste hot water discharged from factories. The new model supports operation using electric heaters only, a hybrid of electric heaters and hot water, or hot water only, depending on the situation (patent pending).

• Utility Model Registration: No. 3236140
• Design Registration: No. 1720661
• Trademark Registration: No. 6570474

Caution!

Perform steam heat treatment of sweet potatoes under precise temperature and humidity control, following correct treatment parameters. Failure to do so may result in damage to the valuable sweet potatoes.

What is Sweet Potato Base Rot Disease?

Sweet potato base rot disease was first confirmed in Japan in November 2018. It is caused by a filamentous fungus (Diaporthe destruens, formerly known as Plenodomus destruens). When this disease occurs, the leaves discolor and show poor growth, the base of the stem blackens and rots, and the underground sweet potato itself becomes discolored from the stem area and emits a moldy odor.

As of the end of June 2022, it has been confirmed in 26 prefectures, including Okinawa, Kagoshima, and Miyazaki.

The fundamental countermeasures for sweet potato base rot disease are the “three no’s”:

1. Bring it in.
2. Let it spread.
3. Leave it behind.

To prevent the introduction of the fungus through seedlings, it is important to disinfect the seed potato beds, main fields, and seed potatoes or seedlings to promote the development of healthy seed stock.

Delivery Record

As of March of the 5th year of Reiwa (2023), 11 units of this product have been delivered. Additionally, two small test devices have been delivered to research institutions.

For sweet potatoes harvested in the 5th year of Reiwa (2023), hundreds of tons of seed potatoes were vapor heat treated using our vapor heat treatment equipment and other facilities in Kagoshima and Miyazaki prefectures.

The first step in implementing countermeasures for sweet potato base rot disease—“Do not bring it in”—has officially begun!

What is Vapor Heat Treatment (VHT)?

Vapor Heat Treatment (VHT) is one of the phytosanitary treatment methods required for the conditional importation of overseas fresh produce. This method is primarily used when exporting fresh fruits such as mangoes, papayas, and dragon fruits from Southeast Asia to Japan, China, South Korea, Australia, New Zealand, and the EU.

The Vapor Heat Treatment System (VHT) is a device that uses steam and heat to eliminate the eggs and larvae of fruit flies, which parasitize fresh produce and cause significant damage in the importing countries. This is achieved without the use of any chemicals, maintaining the quality of the fresh produce while providing pest control and disinfection.

The VHT system by Sanshu Industries is known as the “Differential Pressure Treatment System.” This system utilizes differential pressure to ensure that the vapor heat passes uniformly through all gaps between the loaded fruits, allowing heat to circulate efficiently and evenly.

Currently, most of the vapor heat-treated fresh produce imported into Japan undergoes quarantine using this differential pressure treatment system.

Delivery Record:

• India
• Thailand
• Philippines
• Indonesia
• Taiwan
• Vietnam
• Cambodia
• Pakistan
• Malaysia

Commercial Vapor Heat Treatment Equipment

For large-scale disinfection of fresh produce with conditional import approval

This equipment is designed to control and eliminate fruit flies, which lay eggs on fresh produce and cause significant damage at the destination, using highly precise vapor heat for insecticidal disinfection.
The current commercial modular vapor heat treatment equipment can be designed to handle capacities ranging from 500 kg (1 unit) to 5 tons (10 units) per cycle, tailored to the type of fresh produce being processed and the installation site.
Including older models, Sanshu’s vapor heat treatment equipment is active in over 10 countries worldwide.

[Patents] (As of February 2021):

• Japan: Patent No. 5816304
• Indonesia: IDP000054162
• Vietnam: Invention Patent No. 26584

Vapor Heat Treatment Test Equipment

For insecticidal and damage testing on fresh produce

This equipment has been introduced to domestic and international plant quarantine offices to conduct tests such as damage testing, insecticidal testing, and disinfection testing on fruits.
Using the differential pressure system, it can precisely create various environmental conditions of temperature and humidity according to the purpose of the tests.
It can control and maintain the desired environmental conditions and, if necessary, record temperature and humidity data.

Scientific Equipment

Installation of constant temperature and humidity rooms, clean rooms, and similar facilities.

Sorting and Packaging Machines

We provide sorting and packaging machines tailored to your needs, such as for measuring the sugar content, size, and color of various fruits.

Constant Temperature Vapor Treatment machine（CTVT）

Constant temperature steam treatment is a device that envelops fruits and vegetables with steam at a constant temperature to control and eliminate pests and diseases on their surfaces.

Since only the surface of the produce is treated, the quality of the fruits and vegetables is preserved.

For example, in mangoes, it can suppress the occurrence of anthracnose-like black spots during distribution.
For persimmons, it is effective in exterminating scale insects that attach to the calyx.

Specifications

Compact low-temperature storage for rice – “Rice Storage Warehouse”

No drain required, making installation simple.
Optimally stores rice and vegetables across a wide temperature range!

Easy-to-read large screen and simple control panel

▸ Rice, vegetables, and beverages can be stored at low temperatures.
▸ Quiet operation that’s gentle on daily life (40 dB).
▸ Always clean with antibacterial and anti-mold features.
▸ No drain required, making installation hassle-free.
▸ Easy level adjustment, convenient for installation and relocation.
▸ Operates efficiently in ambient temperatures from 0 to 43°C, even during the high heat of summer (excluding some models).

Prefab panel pre-assembled type with casters for easy installation

DKC-12A	DKC-14A	DKC-21A
DKC-28A	DKC-32A

Specifications

Width (Panel)				0.2 Tsubo Type (DKC-12A)	0.2 Tsubo Type (DKC-14A)	0.3 Tsubo Type (DKC-21A)
Storage Capacity Estimate (30 kg rice bags)				12 bags (6 shelves)	14 bags (7 shelves)	21 bags (10.5 shelves)
External Dimensions			mm
Internal Capacity (Effective Capacity)				932 (863) L	1035 (965) L	1461 (1363) L
Cooling Unit	Model Name			LCDMP02AS		LCDMP05AS
	Set Temperature Range			2~15°C
	Operable Ambient Temperature Range			0~43°C
	Power Supply			Single-phase 100V
	Cooling Capacity			0.38/0.44kW		0.49/0.54 kW
	Operating Noise			40/40dB
	Compressor Motor Output			0.15 kW		0.25 kW
	Refrigerant Used			R407C
Product Weight		Panel (Cooling Unit)		95kg (26kg)	102kg (26kg)	125kg (26.5kg)

Width (Panel)				0.2 Tsubo Type (DKC-12A)	0.2 Tsubo Type (DKC-14A)
Storage Capacity Estimate (30 kg rice bags)				12 bags (6 shelves)	14 bags (7 shelves)
External Dimensions			mm
Internal Capacity (Effective Capacity)				932 (863) L	1035 (965) L
Cooling Unit	Model Name			LCDMP02AS
	Set Temperature Range			2~15°C
	Operable Ambient Temperature Range			0~43°C
	Power Supply			Single-phase 100V
	Cooling Capacity			0.38/0.44kW
	Operating Noise			40/40dB
	Compressor Motor Output			0.15 kW
	Refrigerant Used			R407C
Product Weight		Panel (Cooling Unit)		95kg (26kg)	102kg (26kg)

Prefabricated refrigerator

Preserves freshness, enhances ingredients, and protects quality – Sanshu Prefabricated Refrigerator

1. Easy and Quick Installation with Prefabricated System
   Compared to conventional construction methods, the time from order to delivery is much faster. Naturally, we ensure responsible installation.
2. Energy-Saving Design
   A reliable combination of highly heat-resistant and durable urethane foam panels with Daikin low-temperature air conditioning (unit type).
3. Double Safety Escape Device Included
   In the unlikely event of being trapped, the door can be opened from inside the storage.
4. Light and Durable Panels
   Panels are available in optimal thickness for different humidity ranges and heights can be tailored to your needs.
5. Daikin Low-Temperature Air Conditioner
   Features three-way airflow for high-quality cooling with no uneven cooling.
6. Panel Connection System Enables Disassembly and Expansion

※Sliding doors are also available.

A user-friendly control panel that operates with just the push of a button.

• Temperature can be set from -5°C to 15°C in 1°C increments.
• Interior temperature settings and displays are easy to read with illuminated digital indicators.
• Switching between rice and vegetable modes is done with one touch (with indicator lamp).
• Panel displays abnormalities in equipment or sensors.
• Microcomputer control enables highly accurate temperature and humidity management.

The 0.1 tsubo type has a different design.

Defrosting is automatically controlled by the microcomputer, ensuring defrosting in vegetable mode is performed at the appropriate timing for energy-efficient operation.

L-Type (Ceiling-mounted, 0.5 tsubo or larger)

Efficiently utilizes limited space. Space-saving, lightweight, and requires minimal construction.

• Low-temperature air conditioner (refrigeration) -5°C to 15°C
• Ceiling-mounted type (air-cooled integrated type)
• LCTLP
• Hot gas system
• LCDMP1A (off-cycle system) for 2°C to 15°C is also available.
• 

• Model Name	Cooling Capacity (kW)	Electrical Characteristics			Compressor/Motor Output (kW)	Operating Noise (dB)	Weight (kg)	External Dimensions (mm) (H × W × D)	Drain Piping
  		Operating Current (A)	Power Consumption (kW)	Power Factor (%)
  LCTLP1A	1.19/1.33	3.44/3.53	0.89/1.06	74.5/86.8	0.75	52.5/54.5	38	613×750×540	Outer Diameter: φ26 (VP20)
  LCTLP1X5A	1.74/1.97	4.63/4.16	1.14/1.29	71.2/89.6	1.1	54.5/57.5	50	714×900×656	Outer Diameter: φ32 (VP25)
  LCTLP2A	2.41/2.66	6.51/6.64	1.80/2.14	79.9/93.1	1.8	54.5/57.5	60	714×900×656

• Separate Type (Ceiling-Hung)

Ensures sufficient interior height. By placing the refrigeration unit outside, it accommodates various installation locations.
Equipped with an inverter, saving approximately 30% on annual electricity costs.

• Low-temperature air conditioner (refrigeration) -5°C to 20°C
• Ceiling-hung type (air-cooled separate type)
• LSVLP
• Hot gas system

LSVMP (off-cycle system) for 5°C to 15°C is also available.

Cold Storage Size List

Tsubo Count		0.75 tsubo		1.0 tsubo		1.5 tsubo
Ceiling-Mounted	Model	RH-19-0.75PL		RH-19-11.0PL		RH-19-1.5PL	RH-19-1.5PLH
	Unit Type	LCTLP1A		LCTLP1A		LCTLP1A	LCTLP1X5A
Separate Type	Model	RH-19-0.75PLS		RH-19-1.0PLS		RH-19-1.5PLS	RH-19-1.5PLHS
	Unit Type	LSVLP1AC		LSVLP1AC		LSVLP1AC	LSVLP1X5AC
External Dimensions (mm) (Storage Capacity Estimate)※For the separate type, please exclude the unit height.
Tsubo Count		2.0 tsubo		2.5 tsubo		3.0 tsubo
Ceiling-Mounted	Model	RH-19-2.0PL	RH-19-2.0PLH	RH-19-2.5PL	RH-19-2.5PLH	RH-19-3.0PL	RH-19-3.0PLH
	Unit Type	LCTLP1X5A	LCTLP2A	LCTLP1X5A	LCTLP2A	LCTLP2A	LCTLP1X5A x 2 units
Separate Type	Model	RH-19-2.0PLS	RH-19-2.0PLHS	RH-19-2.5PLS	RH-19-2.5PLHS	RH-19-3.0PLS	RH-19-3.0PLHS
	Unit Type	LSVLP1X5AC	LSVLP2AC	LSVLP1X5AC	LSVLP2AC	LSVLP2AC	LSVLP3AC
External Dimensions (mm) (Storage Capacity Estimate)※For the separate type, please exclude the unit height.

• Ceiling-mounted types require a clearance of 750mm or more above the panels.
• The standard length for refrigerant piping in separate types is within 5 meters.
• Panel surfaces are made of colored copper sheets (colored aluminum is also available).
• The standard interior height is 1900mm, with options for 2200mm, 2400mm, 2600mm, 2800mm, and 3000mm, including custom specifications.
• Sizes larger than 3.0 tsubo and various door types are available for selection.
• Standard Accessories: Interior light (moisture-proof type, 100V/400W), slatted flooring, and a remote-controlled thermostat for humidity settings.
• Air conditioner models may be changed without prior notice for improvement purposes.
• Installation is limited to placement on a concrete foundation.

Gardening gloves

Outstanding usability and stylish design for an exceptional experience!

Features

• Ease of Work!
  Easy to work with as it feels like using bare hands.
• Protects!
  Keeps your hands clean and beautiful at all times.
• Easy to Wash!
  Absorbs sweat well and is easy to wash.
• Washable Multiple Times!
  The fabric is dyed thoroughly, so it retains its color and doesn’t shrink even after multiple washes.
• Suitable for Going Out
  The soft color makes it suitable for outdoor use as well.

Sanshu-style harvest cloth

(Blue only)

Simple and reliable with a hook system!
It can flexibly adapt to varying harvest sizes.

Features

Standard Dimensions:
750 × 1,500 mm
750 × 1,600 mm

Other options include magic tape type and string type.

It comes with a handle for easy portability, making it very convenient.
The hook system allows it to flexibly adapt to varying harvest sizes.

Harvest bag

String type (2 strings)

Magic tape type (3 magic tape points)

Highly effective in promoting crop photosynthesis, accelerating growth, and increasing yield!

Features

• Space-Saving
  Compact design that fits anywhere.
• Easy Operation
  • 24-hour timer for ON-OFF control.
  • Equipped with a concentration controller.
• Safety Design
  • Standard equipped with various safety devices.
  • Can operate in conjunction with a heating unit.

Sweet potato dryer

With the newly developed trolley-type design, it offers excellent temperature balance, and there is no need to change the positions of the Ebira (shelves) from top to bottom.

Features

SP-80S-4T

1.Control of Drying Unevenness in the Airflow
By sending abundant warm air horizontally from top to bottom across a wide area, we have thoroughly suppressed the traditional top-to-bottom drying unevenness.
There is no longer any need to switch the position of the shelves (Ebira) from top to bottom, which was previously a hassle.

2.No Need to Choose Trolleys
The trolley used for cold air drying can be used directly, allowing for easy switching between cold air and warm air drying systems for round drying.

3.Energy-Saving and Low-Noise Type
High heat exchange and high-insulation panels help reduce kerosene consumption.
Furthermore, by using a sirocco fan, we have also considered noise issues for your neighbors.

Rice straw dryer

(Shime nawa)

The SW series, which meets the needs of high-quality finishing drying, has moved beyond the unstable natural drying methods used before.

Features

SW Series

▸ Air intake damper
Stepless adjustment for proper air intake control and energy-saving operation

▸ Exhaust duct
Stepless adjustment for proper air intake control and energy-saving operation

▸ Insulation panel
Achieves low fuel consumption by using rigid urethane foam panels

▸ Heat-resistant centrifugal fan
Equipped with a high-performance fan capable of handling drying with ease

▸ Observation window
(Inside with glass door) Allows you to check the drying status without opening the door

▸ Temperature controller
Automatically stops when drying is complete, thanks to the drying timer. The thermistor-type electronic temperature controller provides easy and safe temperature control

▸ Double-hinged doors
Doors designed for easy loading of dried materials, with pipe handles for easy opening and closing

▸ Gun-type burner
A burner with a long track record and high reliability

Combustion safety control device (protective relay) ensures safe burner operation

▸ High limit
Overheating prevention device protects against abnormal overheating of the furnace

• Economic energy-saving design by adopting insulation panels (25mm thick, rigid urethane foam panels) to save fuel.
• High-quality, fuel-efficient (energy-saving) drying using a circulation method (indirect hot air that does not carry smoke odor).
• Safe drying with a high-performance burner to ensure safety.
• Easy maintenance that anyone can do.
• High-performance blower fan provides quiet operation and large airflow, ensuring effortless and efficient drying.
• Suitable for various purposes, including drying agricultural and marine products (herbs, health foods, cut vegetables, rice, etc.), and tatami mat drying.

Specification sheet

(This specification may change without notice due to improvements.)
Note: Silent-type dryers and large-scale dryers can also be custom-made.

Futon Dryer

Quick Drying and Large-Scale Finishing of Futons.
The FK Series Responds to the Needs of Linen Industry Professionals.

It can dry in just 1 hour at a 80°C setting.
Additionally, with the use of insulated panels, it is highly economical. The futon’s cotton won’t shift or lose its shape.
Not only futons but also mattresses, carpets, cushions, pillows, and clothing (including lab coats) can be dried.

The photo shows a 1-tatami unit.
Special cart for hanging futons (made of stainless steel).

Temperature Recorder (Optional)
It records the temperature during the drying process.

By submitting the recorded sheets to inspection agencies and related departments, you can gain trust and credibility.

Futon Dryer Specifications

Drying Room

With a dedicated hanger rack, 15 futons (shikifuton) and 10 comforters (kakefuton) can be dried in about 1 hour for the 2-tsubo (6.6㎡) type.

Sanshu-type Tatami Dryer

Clean hot air drying that also exterminates dust mites and their eggs.

1. Insulation panel with embedded foam urethane, offering excellent heat retention and thermal efficiency.
2. High-limit safety device and burner circuit safety device.

Control box with automatic timer control for one-touch operation. Drying room: Easy-to-load dedicated shelves (with guide plates on the top and rollers on the bottom for easy loading and unloading).

Specification sheet

Note: There is also the ST-24 model (24 pieces capacity) dryer available.
(This specification may change without prior notice due to improvements.)

Somen drying machine

Somen dedicated drying machine, for the finest finish!

Temperature controller	Furnace	Low-noise sirocco fan
Easy to operate Adjustable from 0℃ to 50℃	Uses paint with far-infrared effects Also provides energy-saving benefits	High static pressure ensures wide coverage Air reaches across a broad area

Specification sheet

(This specification is subject to change without prior notice for improvements.)

Garlic drying machine

Breaking away from the previously unstable natural drying,
the NS-type drying machine meets your needs for high-quality finishing and processing.

▸ Exhaust Duct and Exhaust Fan
Discharges moist drying air outdoors using the exhaust fan (differential pressure exhaust).

▸ High-Insulation Panel
Adopts rigid urethane foam panels (40mm) to achieve low fuel consumption with minimal heat loss.

▸ Double Doors
Features double doors for easy loading of dried goods and pipe handles for convenient opening and closing.

▸ Inspection Small Door
Allows checking of the drying status by opening a small door without opening the large door. Naturally equipped with a safety lock release mechanism.

▸ Heat-Resistant Diagonal Flow Fan
Equipped with a high-performance fan capable of handling drying with ease.

▸ Dedicated Control Panel
Automatically stops drying when finished using a drying timer. Features a thermistor-based electronic temperature controller for easy and safe temperature management.

▸ Gun-Type Burner
A burner with years of proven reliability. Equipped with a combustion safety control device (protect relay) for safe burner operation.

▸ High Limit
Includes an abnormal overheating prevention device to prevent excessive overheating of the furnace.

▸ Flat Drying Room
Flat drying chamber allows for easy loading of dried goods with a forklift.

▸ Interior Lighting
Equipped with interior lights for convenient loading, unloading, and drying inspection.

▸ Insulated Panels
Adopts 40mm thick rigid urethane foam panels, offering an economical and energy-saving design that reduces fuel consumption.

▸ Circulation System
Indirect hot air circulation (odor-free from smoke) ensures high-quality and fuel-efficient (energy-saving) drying.

▸ High-Safety Burner
Drying is made safe with a high-performance burner designed for optimal safety.

▸ Easy Maintenance
Maintenance is simple and can be performed by anyone.

▸ High-Performance Fan
Achieves quiet operation and large airflow, enabling efficient and effortless drying.

▸ Multi-Purpose Use
Suitable for agricultural and marine products, such as onions, medicinal herbs, health foods, cut vegetables, and rice.

▸ Custom Drying Capacity
Drying capacity is tailored to meet customer needs through custom designs.

Specification sheet

Fully Automated Operation by Microcomputer

1. Fully Automatic Drying with Basic Drying Program
   • Humidity Priority – 4 items (monitors the moisture of the dry goods and ensures error-free drying)
   • Time Priority – 4 items (performs drying according to the set program, based on the specified time)
2. Custom Program Creation Available
   • Programs can be created based on the operator’s preferences and can store up to three courses.

Small dryer

Panel: Made of steel plate

SP-10K	SP-12K	DigiMac control box

Fully automatic dryer

Panel: Rigid urethane foam insulation panel, 25mm thickness

SP-15AT	SP-30AT	SP-45AT
SP-60AT	SP Microcomputer Control Box

Standard Type A Dryer

Panel: Rigid urethane foam insulation panel, 25mm thickness

SP-15A	SP-30A	SP-45A
SP-60A	Standard control box

Wood and oil dual-purpose type

SP-60AM	Standard control box

Standard specifications

(Notes)

1. The firewood and oil mixed-use type is made to order.
2. The SP-A model can be equipped with a 6-stage program controller as an option.
3. The SP-AT model controls temperature, time, airflow, and circulation volume using SP microcontroller-based programming.
4. The SP-15-60 AT requires a 400mm height space at the top of the drying room for the exhaust hood installation.
5. The heavy oil specification is an option.
6. The spacing of the Ebira shelves can be changed according to your preference with an option.

Note: This specification is subject to change without prior notice as part of ongoing improvements.

Custom Specifications

Gas-Fired Method / Internal Stainless Steel (LPG)	SUS Trolley Method
Biomass Fuel Hot Water Utilization Method	Spot Air Distribution Method

Option

Standard Ebira 600×1200	Slice-type fine mesh Ebira
6-stage program controller	Seiro 7-2 type

Exhaust gas booster (patent pending)

Depending on the installation location of the dryer, such as in areas with poor exhaust conditions, like longer horizontal runs of the chimney, the burner combustion is therefore stabilized, which in turn minimizes soot generation.
The installation can be done freely both vertically and horizontally, and it does not require a specific location.

Four performances have evolved

1.Equipped with a new burner

Achieving high combustion efficiency
The high-efficiency split flame combustion is maintained, and cleaning has become easier with the detachable burner top.

2.Microcomputer (Control unit)

Standard equipped with 4-stage thermostat and on/off controller
The cooling time for the blower fan is automatically adjusted according to the combustion time. The alarm device is optional.

3.Newly adopted ZAM® steel plate

Improved corrosion resistance of the main unit
The use of highly corrosion-resistant ZAM®+ for the outer panels has enhanced durability. You can use it with peace of mind for a long time.

※ ZAM® is a registered trademark of Nippon Steel Corporation.

4.Newly designed balance plate

Improved durability of the furnace
Maintains high thermal efficiency while suppressing the generation of condensation inside the furnace.

DF: Down-blow type

SK-200L-DF	SK-300L-DF	SK-400L-DF
SK-500L-DF	SK-600L-DF

UF: Up-blow type

SK-200L-UF	SK-300L-UF	SK-400L-UF
SK-500L-UF	SK-600L-UF

T: Low-floor type

SK-500LT-DF	SK-600LT-DF	SK-700LT-DF SK-800LT-DF

Specification sheet

New touch-panel microcomputer box

1.Easy and convenient with touch operation
By adopting a newly developed color LCD touch panel, it has become easier to view and use.
Simple knob settings make operation straightforward.

2.Safe, Secure, and Energy-Saving
Next-generation “visible” energy-saving microcomputer boosts yield.
Provides reliable safety, security, and energy efficiency.

3.Equipped with a detachable controller
At the specified time, the blower or burner can operate regardless of the temperature.

Operation display screen (example)

4-level thermo screen (example)

Indoor temperature graph screen (example)

Fuel consumption screen (example)

K M R Type

Microcomputer box

K A R Type

Analog box

Durable furnace body (Almar treatment)

1. New touch panel microcomputer
2. Almar-treated furnace body
3. Low-noise blower
4. Adoption of a special spiral tube
5. Easy duct attachment and removal with one-touch bands
6. Newly developed service tank
7. Burner

Down-blow type (DF model)

SK-150KMR-UF	SK-200KMR-UF	SK-300KMR-UF
SK-400KMR-UF	SK-500KMR-UF	SK-600KMR-UF

Low-floor type (T model)

SK-500KTMR-DF	SK-600KTMR-DF
SK-700KTMR-DF	SK-800KTMR-DF

Quick reference table for nozzle size and chimney size

Note:
① Please use the SS pattern from Hago Company for the nozzle size.
② Chimney size is in (mm) units.

Quick reference table for applicable ducts

Note:
① Duct sizes are indicated by folded diameters (mm).
② The content of this table is for reference at the time of purchase. For details, please refer to the instruction manual or consult our sales office or agents.

Specification table

Note:

1. The model codes indicate: DF type: Down-blow (Chamber), UF type: Up-blow (Elbow), KT type: Low-floor.
2. There are also kerosene-only models available from 150 to 400K type (made to order).
3. The nozzle heater capacity shows the nominal value.
4. The dimensions marked with *1 include the burner and chimney elbow dimensions.
5. The airflow value is based on a temperature of 20°C and no poly duct.
6. The values represented by “/” in the specification table indicate the values for power frequency 50/60Hz, respectively.
7. The SK-700KT and 800KT models are for 60Hz only (made to order).
8. Thermal output and fuel consumption are calculated based on a specific gravity of 0.86kg/ℓ for A heavy oil and a lower heating value of 42.7MJ/kg (10,200kcal/kg).
9. The specifications may be subject to change without notice for improvement purposes.

Kerosene-fired small heater

K Series
We propose clean combustion and fresh airflow for the Earth and crops.

SK-110KAⅡ-UF
SK-110KAⅡ-DF

All models have a thermal efficiency of 90%
Suitable for small greenhouses, poultry houses, cattle barns, pig pens, silkworm houses, mushroom cultivation,
Various seedling cultivation facilities, snow-melting systems, and more.

Specification table

1. The model code indicates: DF type: Down-blow, UF type: Up-blow (Elbow).
2. The overall length indicates the dimensions when the chimney elbow is installed.
3. The overall height of SK-110KAⅡ-UF indicates the dimensions when the exhaust outlet elbow is installed.
4. The generated heat amount is calculated based on the following values:
5. <Kerosene> Lower heating value: 43.5MJ/kg {10400kcal/kg} Density: 0.8kg/cm3
6. Airflow is the value at 20°C without poly duct.
7. These specifications may be subject to change without notice for improvement purposes.

Waste oil mixed burner heater

Low-cost type greenhouse heater is born!!
Waste oil mixed burner heater – Proven excellent fuel savings!!

Specification table

1. The model code indicates: DF type: Down-blow (Chamber).
2. The thermal output is calculated based on the oil density of 0.86kg/L and a lower heating value of 42.7MJ/kg (10,200kcal/kg).
3. *The dimensions indicated in 1 include the burner and chimney elbow dimensions.
4. These specifications may be subject to change without notice for improvement purposes.

High-tech WA burner
Production area (Nagasaki Prefecture)

Tobacco leaf dryer

Environmentally Friendly Container Bulk Dryer

Main unit side (and microcomputer bulk device)

Inside the drying chamber

Development concept of the environmentally friendly container bulk dryer

1) Development Concept

• To reduce the environmental impact in tobacco leaf drying and better preserve the Earth’s environment, therefore, the machine developers aimed to reduce fuel consumption by more than 30% compared to conventional machines.

2) Energy-saving Performance

• It enables a reduction in fuel consumption of over 30%. (Passed the Tobacco Cultivation Material Commissioned Test in FY 2016).

Features

1.Significant improvement in insulation performance

①The panel thickness increases from the previous 25mm to 42mm.

As a result, insulation performance improves significantly by using color steel plates for the outer surface, injecting high-density foam polyurethane inside, and replacing the traditional aluminum frame with a resin frame.

②In addition, insulation panels are applied to the bottom plate to prevent heat loss from the foundation.

As a result, the heat loss to the foundation section is significantly reduced.

③Thermography image of the hot air generator during drying

※ The higher the temperature, the stronger the red color appears.

Traditional dryer
(Insulation material: Glass wool)

EC-type dryer
Insulation material: Gypsum board + foam polyurethane

④To prevent heat loss from the observation window, specialized sashes and insulation panels have been used.

Features

Ceramic tube fuse
0.63A/250V Φ5.2×20㎜

Applicable model

RD700 (S/N: < 5228775)/RD701 (S/N: < 5228975)
* S/N (=serial number) is located on the back side of product.