スリーハイ List of Products and Services

【Overview】 The "Clean Room Mantle Heater" features excellent thermal efficiency with insulation material, enabling stable heating with low electrical capacity even for complex shapes such as tanks, piping, valves, and pumps. Additionally, it can be manufactured in any shape with 95% accuracy. Furthermore, it primarily utilizes "eFF260#1," a PTFE fiber cloth composed of 100% PTFE, which has excellent heat resistance and chemical resistance, making it suitable for clean rooms. 【Features】 ■ Heat resistance up to 260°C (normal use below 220°C) ■ Manufactured from a single unit ■ Compliant with RoHS2 ※1 "eFF260#1" refers to: - It is inert to almost all chemicals, including strong acids (including hydrofluoric acid and aqua regia), strong alkalis, and organic solvents. - PTFE is harmless to the body, and due to its chemical properties and thermal stability, it can be safely used in clean rooms. - The PTFE fiber, which is widely used as high-strength sewing thread, has undergone special processing, resulting in exceptional tear strength. It has approximately 20 times the tear strength of similar fiberglass cloths used in the same temperature range. *For more details, please refer to the PDF document or feel free to contact us.

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

【Overview】 The "Mantle Heater" has insulation material, which provides good thermal efficiency, allowing for stable heating with a low electrical capacity even for complex shapes such as tanks, piping, valves, and pumps. Additionally, it can be manufactured in any shape with a 95% success rate. However, for products with curves in their shape or those with tapers like funnels and hoppers, as well as complex shapes that require holes or cuts, we can manufacture them if you provide the heated container. If you provide the actual item or drawings, we will create a prototype for foam molding. *For the production of custom special items, we will visit to discuss the shape of the heated object, so please feel free to contact us. *To ensure safe temperature management, we also recommend considering a digital temperature controller. We can provide suggestions based on the specifications of the heater you desire, so please let us know if you are interested. 【Features】 ■ Two types available: heat-resistant up to 400°C (normal use 350°C) and heat-resistant up to 700°C (normal use 450°C) ■ Manufactured from a single unit ■ RoHS2 compliant *For more details, please refer to the PDF document or feel free to contact us.

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

【Overview】 Even complex shapes such as pipes, valves, and pumps can be easily heated and insulated by wrapping this around them. Additionally, the outer material uses "100% PTFE fabric," which is ideal for clean rooms due to its excellent flexibility and chemical resistance. The heating wire is made of stainless fiber wire, which is strong against bending and has excellent flexibility. *For safe temperature management, we would appreciate it if you also consider a digital temperature controller. We can provide suggestions tailored to the specifications of the heater you desire, so please feel free to contact us. 【Features】 ■ Immediate delivery available ■ Heat resistance up to 260℃ ■ Custom manufacturing from one piece ■ RoHS2 compliant *For more details, please refer to the PDF document or feel free to contact us.

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

【Overview】 Even complex shapes such as pipes, valves, and pumps can be easily heated and insulated by wrapping this around them. Due to its high heat resistance, it can be used in high-temperature environments. We accommodate everything from urgent applications to prototype development and mass production. We can manufacture completely original heaters tailored to your specific requirements, even if it's just one unit. *For safe temperature management, we also recommend considering a digital temperature controller. We can provide suggestions based on the specifications of the heater you desire, so please feel free to contact us. 【Features】 ■ Immediate delivery available ■ Two types available: heat resistance up to 400°C (continuous use at 350°C) and heat resistance up to 700°C (continuous use at 450°C) ■ Custom manufacturing from one unit ■ RoHS2 compliant *For more details, please refer to the PDF document or feel free to contact us.

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

【Overview】 Even complex shapes such as pipes, valves, and pumps can be easily heated and insulated by wrapping this around them. We accommodate everything from urgent needs to prototype development and mass production. We can manufacture completely original heaters tailored to your requirements, starting from just one unit. We also offer accessories that are ideal for installation and securing, so please consider them if you encounter any difficulties. *For safe temperature management, we would appreciate it if you could also consider a digital temperature controller. We can suggest options based on the specifications of the heater you desire, so please feel free to contact us in that case. 【Features】 ■ Immediate delivery available ■ Heat resistance up to 200℃ ■ Excellent heat resistance, cold resistance, water resistance, steam resistance, and weather resistance ■ Usable over a wide temperature range from low to high temperatures ■ Can be manufactured from 30cm to 18m ■ Production available from one unit ■ RoHS2 compliant *For more details, please refer to the PDF document or feel free to contact us.

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

【Overview】 Even complex shapes such as pipes, valves, and pumps can be easily heated and insulated by wrapping this around them. We cater to sudden needs, prototype development, and mass production. We can create completely original heaters tailored to your requirements, starting from just one unit. We also offer accessories that are ideal for installation and securing, so please consider them if you encounter any issues. *For safe temperature management, we would appreciate your consideration of a digital temperature controller as well. We can also propose options that match the specifications of your desired heater, so please feel free to contact us in that case. 【Features】 ■ Immediate delivery available ■ Heat resistance up to 200℃ ■ Excellent heat resistance, cold resistance, water resistance, steam resistance, and weather resistance ■ Usable across a wide temperature range from low to high temperatures ■ Custom manufacturing available from 30cm to 10m ■ Production available from a single unit ■ RoHS2 compliant *For more details, please refer to the PDF document or feel free to contact us.

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

【Overview】 Even complex shapes such as pipes, valves, and pumps can be easily heated and insulated by wrapping this around them. We cater to sudden needs, prototype development, and mass production. We can manufacture completely original heaters tailored to your requirements, starting from just one unit. We also offer accessories that are ideal for installation and securing, so please consider them if you encounter any difficulties. *For safe temperature management, we would appreciate your consideration of a digital temperature controller as well. We can also provide suggestions based on the specifications of the heater you desire, so please feel free to contact us in that case. 【Features】 ■ Immediate delivery available ■ Heat resistance up to 200℃ ■ Excellent heat resistance, cold resistance, water resistance, steam resistance, and weather resistance ■ Usable over a wide temperature range from low to high temperatures ■ Can be manufactured from 30cm to 10m ■ Production available from one unit ■ RoHS2 compliant *For more details, please refer to the PDF document or feel free to contact us.

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

**Overview** 'MASANORI' is a thin element heater with a code connection, one of the smallest in the industry, designed to meet the demand for "partially heating and keeping warm in narrow spaces." You can use it with peace of mind as the cord is properly insulated. Please use this heater in places where there is no space for a traditional heater. *For safe temperature management, we also recommend considering a digital temperature controller. (The 100V version of 'MASANORI' is compatible with the digital temperature controller 'monoone+W'.)* **Features** - Despite being smaller than a one-yen coin, it delivers heating power up to 150°C - Immediate delivery - Heat resistance up to 200°C - Compliant with RoHS2 *For more details, please contact us or download the catalog.*

• Other heaters
• Heating device

【Overview】 The "Can Heater (Type K)" directly warms the can, making it easier to handle solvents. It can be easily attached and detached without effort, and is convenient to carry. Equipped with a dial-type temperature control function, it can be used by anyone. Additionally, we offer a "removable insulated jacket" that effectively insulates from the outside of the can, preventing heat loss and enhancing heat retention. 【Features】 ■ Directly warms the can, making it easier to handle solvents ■ Usable throughout the year across various industries ■ Usable by anyone with the temperature control function ■ Excellent flexibility, bendability, and durability ■ RoHS compliant ■ Compliant with the Electrical Appliance and Material Safety Law (PSE) *For more details, please refer to the PDF document or feel free to contact us.

• Other heaters
• Heating device

【Overview】 Aluminum foil heaters are low-cost surface heaters that utilize the thermal conductivity of aluminum foil. They are flexible surface heating elements that are not found in metal heaters, and due to their long lifespan and customizable design, they are widely used across various industrial sectors. With double-sided tape included, they are ideal for cost-conscious applications. They can be manufactured from a single piece regardless of shape. Compared to silicone rubber heaters, they offer greater flexibility and are recommended for those considering cost reduction. *For safe temperature management, we also recommend considering a digital temperature controller. We can provide suggestions tailored to the specifications of the heater you desire, so please feel free to contact us. 【Features】 ■ Immediate delivery available (100V model) ■ Surface heating element ■ Aluminum foil finish designed to be splash-proof ■ Customizable design in any shape ■ Capable of processing circles, irregular shapes, and holes ■ Manufactured from a single piece ■ Excellent thermal responsiveness ■ Thickness of approximately 3mm ■ Soft material despite being a heater ■ Color is silver ■ Compliant with RoHS2 ■ Heat resistant up to 120℃ *For more details, please refer to the PDF document or feel free to contact us.

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

**Overview** The "Silicone Sand Heater" is a heater made entirely of silicone material. It features a flexible surface heating element that is not found in metal heaters. Due to its long lifespan and the ability to be freely designed, it is widely used across various industrial sectors. It offers greater flexibility compared to silicone rubber heaters. *For safe temperature management, we also recommend considering a digital temperature controller. We can provide suggestions tailored to the specifications of your desired heater, so please feel free to contact us in that case.* **Features** - Surface heating element - All-silicone rubber finish designed for waterproof and drip-proof applications - Can be designed in any shape - Capable of circular, irregular shapes, with holes, and R processing - Excellent thermal responsiveness - Thickness of approximately 5mm - Soft material despite being a heater - Custom manufacturing from a single unit *For more details, please refer to the PDF document or feel free to contact us.*

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

**Overview** The "Silicon Spiral Heater" is a heater that is shaped in a spiral (φ20) and excels in heat resistance, cold resistance, and water resistance. It can accommodate complex shapes such as pipes, valves, and pumps. Using this product allows for easy heating and insulation. In addition to standard ready-to-ship products, we also manufacture completely original heaters starting from just one unit. We also offer accessories that are ideal for installation and securing, so please consider them if you are in need. *For safe temperature management, we would appreciate your consideration of a digital temperature controller as well. We can also provide suggestions tailored to the specifications of your desired heater, so please feel free to contact us in that case.* **Features** - Heat resistance up to 200°C - Excellent heat resistance, cold resistance, water resistance, steam resistance, and weather resistance - Usable across a wide temperature range from low to high temperatures - Can be manufactured from 30cm to 7m - Can be produced from just one unit - Compliant with RoHS2 *For more details, please refer to the PDF document or feel free to contact us.*

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

**Overview** The "Code Heater" can accommodate complex shapes such as pipes, valves, and pumps. By using this product, you can easily heat and maintain temperature. The lead wires are made of fluororesin (PTFE), making it suitable for use in clean rooms and similar environments. We also accept custom orders starting from one unit, tailored to your specifications. We offer accessories that are ideal for installation and securing, so please consider them if you need assistance. *Additionally, we have a lineup of "Silicone Coated Code Heaters" that are easy to wrap and very soft, as well as "Silicone Glass Coated Code Heaters (White)" reinforced with glass cloth on the outside.* *For safe temperature management, we would appreciate your consideration of a digital temperature controller as well. We can also provide suggestions based on the specifications of the heater you desire, so please feel free to contact us.* **Features** ■ Immediate delivery available ■ Heat resistant up to 200°C ■ RoHS2 compliant ■ Custom manufacturing available in specified voltage, wattage, and length with a short lead time starting from one unit *For more details, please refer to the PDF document or feel free to contact us.*

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

**Overview** The "Code Heater" can accommodate complex shapes such as pipes, valves, and pumps. By using the highly durable "Silicone Glass Coated Code Heater (White)" reinforced with glass cloth on the outside, heating and insulation can be easily achieved. We also accept custom orders starting from one unit, tailored to your specifications. We offer accessories that are ideal for installation and securing, so please consider them if you encounter any difficulties. *Additionally, we have a lineup of "Silicone Coated Code Heaters" that are very soft and easy to wrap, as well as "Fluororesin (PTFE) Coated Code Heaters (Red)" suitable for use in clean rooms.* *To ensure safe temperature management, we would appreciate it if you could also consider a digital temperature controller. We can provide suggestions based on the specifications of the heater you desire, so please feel free to contact us in that case.* **Features** ■ Immediate delivery available ■ Heat resistance up to 200°C ■ RoHS2 compliant ■ Custom manufacturing from one unit with short lead times for specified voltage, wattage, and length *For more details, please refer to the PDF document or feel free to contact us.*

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

**Overview** The "Code Heater" can accommodate complex shapes such as pipes, valves, and pumps. By using a very soft "silicone-coated code heater" that is easy to wrap, heating and maintaining temperature can be done easily. We also accept custom orders starting from one unit to meet your specific needs. We offer accessories that are ideal for installation and securing, so please consider them if you encounter any difficulties. *Additionally, we have a lineup of "silicone glass-coated code heaters (white)" reinforced with glass cloth on the outside, and "fluororesin (PTFE) coated code heaters (red)" that can be used in clean rooms.* *To ensure safe temperature management, we would appreciate it if you could also consider a digital temperature controller. We can provide suggestions tailored to the specifications of the heater you desire, so please feel free to contact us in that case.* **Features** ■ Immediate delivery available ■ Heat resistance up to 200°C ■ RoHS2 compliant ■ Custom manufacturing from one unit with specified voltage, wattage, and length in a short lead time *For more details, please refer to the PDF document or feel free to contact us.*

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

**Overview** The "Silicone Rubber Heater" is a heater used for various applications such as freeze prevention, condensation prevention, and high viscosity prevention. It has a structure where resistance wires are patterned between two silicone sheets processed with glass cloth calendaring. It excels in flexibility, allowing it to fit perfectly on heated objects with curved surfaces or cylindrical shapes, and due to its standard thickness of 1.5mm, it has excellent thermal responsiveness. *For safe temperature management, we also recommend considering a digital temperature controller. We can provide suggestions tailored to the specifications of the heater you desire, so please feel free to contact us.* **Features** ■ A flexible surface heating element not found in metal heaters ■ Can be used at continuous temperatures of 200°C (or 260°C) with a long lifespan ■ Can be manufactured in a short period even for orders starting from one piece due to a special manufacturing method ■ Can be produced with free shape design, integrating required technologies *For more details, please refer to the PDF materials or feel free to contact us.*

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

【Overview】 The "Silicone Rubber Heater (for Piping)" is available in a wide range from 20A to 750A. It excels in flexibility, allowing for a perfect fit on heated objects such as curved surfaces and cylinders. Easy to attach and detach, it supports different piping systems comprehensively, and we can manufacture completely original heaters starting from just one unit. Of course, we also offer temperature controllers as part of our proposal. 【Features】 ■ Heat resistance up to 200℃ ■ Compliant with RoHS2 ■ Custom manufacturing from one unit regardless of shape ■ Flexible surface heating element *For more details, please refer to the PDF document or feel free to contact us.

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

【Overview】 The "Silicone Rubber Heater SR Type" is always in stock in standard widths ranging from 25mm to 300mm, allowing for immediate delivery. It is easy to use. It can be operated with a standard 100V household power supply, so you can try it out right away. It comes with a 300mm lead wire and is carefully finished and processed by expert staff. We also offer the "SR Type with Double-Sided Tape," which comes with double-sided tape (with release paper). *For safe temperature management, we recommend considering a digital temperature controller as well. 【Features】 ■ Immediate delivery ■ Heat resistant up to 200℃ ■ RoHS compliant ■ Can be combined with various options *For more details, please refer to the PDF document or feel free to contact us.

• Silicon Heater

【Overview】 High capacity of 30A. Sophisticated design. By combining a temperature controller with a 2-degree-of-freedom PID control method and a cycle control unit with an SSR, highly accurate temperature control with minimal noise generation can be achieved. Additionally, the exhaust fan operates automatically based on ambient temperature and usage time, which helps to suppress the internal temperature rise of the device while also providing excellent low noise performance.

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

**Overview** The 'monoone-120' is a digital temperature controller that utilizes a "dual monitoring system" to manage the heater's temperature while simultaneously measuring the temperature of the heated object (monitoring function). By monitoring both temperatures at the same time, it enables more accurate temperature management. It can be safely used even when the heating points are far apart. Additionally, by using the error port for unexpected issues such as heater disconnection or sensor disconnection, it can activate a buzzer or rotating light, ensuring a safe working environment. **Features** - Easy, safe, and compact design, simple for anyone to use - Temperature sensors cover most thermocouples and are compatible with Pt sensors - Additional sensor port for monitoring - Convenient ON/OFF timer available (optional), compatible with 5-stage stands and DIN rail mounting - 5-year product warranty *For more details, please contact us or download the catalog.*

• Temperature and Humidity Control

**Overview** The "monoone +W" is a digital temperature controller equipped with over-temperature prevention functionality and a sensor, allowing for immediate use upon purchase. It clearly responds to unexpected issues such as sensor disconnection errors with error displays. With optional equipment, it is compatible with DIN rails, so there are no worries about installation in control panels. The "monoone +W" supports microcurrents (1mA to 0.5A), making it recommended for low-capacity heaters. *For higher current values or when using at 200V, please choose the "monoone +B."* **Features** - Easy, safe, and compact design that anyone can use easily - Handy type for simple operation → Fits comfortably in hand, making it easy for women to carry - Sensor replacement is possible - Choose sensor shapes according to needs - Among the best in the industry for handy types → Supports temperatures from -199 to 999°C - RoHS2 compliant *For more details, please contact us or download the catalog.*

• Temperature and Humidity Control

【Overview】 'monoone +B' is a digital temperature controller equipped with over-temperature prevention functions and sensors, allowing for immediate use upon purchase. It clearly responds to unexpected issues, such as sensor disconnection errors, with error displays. It can also be equipped with options for DIN rail compatibility, ensuring easy installation in control panels. 'monoone +B' is compatible not only with 100V but also with 200V. *For connecting to heaters with microcurrent (1mA to 0.5A), please choose 'monoone +W'. 【Features】 ■ Easy, safe, and compact design that anyone can use easily ■ Handy type for simple operation 　→ Fits comfortably in hand, making it easy for women to carry ■ Sensor replacement is possible ■ Choose sensor shapes according to needs ■ Among the best in the industry for handheld types 　→ Supports temperatures from -199 to 999℃ ■ RoHS2 compliant *For more details, please contact us or download the catalog.

• Temperature and Humidity Control

In this document, we answer frequently asked questions regarding heat-related issues. Questions such as "What temperature can it reach?" and "What do I need to prepare and how do I use it?" are illustrated with examples. Additionally, we introduce the process from inquiry to heater production. 【Frequently Asked Questions】 ■ I don't know what criteria to use for selection? ■ Can we have a meeting on-site? ■ I'm currently facing an issue; what is the delivery time? ■ Can you produce just one heater? ■ Do you have samples available? *For more details, please refer to the PDF document or feel free to contact us.

• Silicon Heater
• Other heaters

This catalog is a comprehensive catalog from Three High Co., Ltd., which manufactures heaters that are active in various locations and applications. It includes "Silicone Rubber Heaters" suitable for surface heating up to 260°C, "Silicone Belt Heaters" suitable for heating pipes, and "Mantle Heaters" capable of heating pipe valves up to 700°C. In addition, we also introduce installation locations and the Three High custom-made system. 【Featured Products (Excerpt)】 ■ Silicone Rubber Heater ■ Silicone Sand Heater ■ Aluminum Foil Heater ■ Silicone Spiral Heater ■ Various Can Heaters *For more details, please refer to the PDF document or feel free to contact us.

• Silicon Heater
• Sensors
• Temperature and humidity measuring instruments

The pioneer of industrial and commercial heaters, Three High, has launched a Facebook page. ▼▼ You can view it via the link to the website below ▼▼

• Ceramic Heater

I want to reliably heat the 'heated object' and also manage the temperature. This is where it will be helpful.

• Silicon Heater

Not just for the bridge piers, I want to preheat in advance. I want to proceed with the work efficiently. This is where it will be helpful.

• Silicon Heater

Achieves uniform heating with a flat heating element. By incorporating a thermostat, it automatically turns off even in summer.

• Silicon Heater

In general, machines are not very good at withstanding cold. Therefore, it is necessary to provide heat from an external source. Once the power is turned on, the heat generated from the machine itself can solve the issue, but a heater is absolutely necessary until that point is reached. Additionally, if the temperature is maintained at a certain level, it is important to manage the temperature to ensure it does not exceed what is necessary.

• Silicon Heater

The global motorcycle market is said to be around 30 million units per year. Additionally, the demand for grip heaters as winter cold protection items for motorcycle users is on the rise. This means that riders no longer have to put their hands in their pockets to keep warm while waiting at traffic signals, allowing them to concentrate on driving and improving work efficiency.

• Silicon Heater

In summer, condensation occurs when high-temperature, high-humidity outside air flows into cold surfaces such as floors in basements or warehouses that are always open, or in air-conditioned rooms. In winter, the opposite happens; in buildings that are well-cooled by air conditioning, external moist air enters the walls and condensation occurs in areas below the dew point temperature of the temperature gradient. The basic methods to prevent condensation are to reduce the amount of water vapor indoors or to raise the surface temperature, but here we recommend using heaters to prevent condensation.

• Silicon Heater

We will provide better suggestions regarding inquiries such as, 'Is it possible to install the heater due to the shape of the camera and the interior of the case?'

• Silicon Heater

Recently, it has been used in bio-toilets, where heaters are utilized for the activation of microorganisms in the fermentation tank and for moisture regulation.

• Silicon Heater

We want to provide our customers with freshly made products. For this reason, it is used as a heater for maintaining optimal temperature.

• Silicon Heater

In restaurants at hotels and event venues (such as buffets), the basic principle is to serve hot food while it is still hot. Recently, this has also been adopted by many yakitori restaurants. Traditionally, solid fuel was used for heating, but due to rising fuel costs and other factors, there is a gradual shift towards electric heaters.

• Silicon Heater

A heater is built into the bottom of the plate, warming the surface of the plate.

• Silicon Heater

Heaters are used for heating and maintaining the temperature in rock baths and foot baths.

• Silicon Heater

In the health salon, foot baths and stone baths are used, while in the beauty salon, treatment tables (mats), facials, hot rooms, and heaters are utilized.

• Silicon Heater

For example, it is installed on the seats of benches at ski resorts, amusement parks, and event venues.

• Silicon Heater

I want to shorten the curing time as much as possible. Heaters are used for reasons such as wanting to reduce drying time.

• Silicon Heater

Large color inkjet printer ink fixation heater, PVC sheet ink fixation heater, etc.

• Silicon Heater

For example, it is the dehumidifying heater of the rice milling machine. When humidity increases due to condensation, it can lead to "insect infestations" and "mold," which may degrade quality.

• Silicon Heater

In addition, heaters are widely used for improving productivity through equipment enhancements.

• Silicon Heater

Not limited to liquids, we solve on-site problems by heating solids and gases as well.

• Silicon Heater

In the bio-type of food waste processor, heaters are used to activate decomposition by microorganisms in the fermentation tank and to regulate moisture, while in the dry type, heaters are utilized for drying the waste and inactivating microorganisms.

• Silicon Heater