Industrial tubular heaters are highly adaptable to most applications where electrical heating is required. They can be used in their straight form or bent into various shapes. Tubular heaters can be used in free air, clamped to a surface, placed inside a groove or cast into metal. These versatile heating elements are available in Steel, Copper, Stainless Steel or Incoloy outside sheath and can be utilized in application temperatures of up to 14000oF
Mica heaters are efficient and economical solutions to the heating requirements of many applications. Mica heaters can attain a maximum sheath temperature of 900°F, but with different electrical termination styles, clamping mechanisms, and ability to accommodate holes and cutouts, mica band heaters are successfully used in many applications, but are mostly sought for in the plastics industry.
The Duopu cartridge heater revolutionized the heating element industry when it was patented as the first swaged cartridge heater. The mechanical procedure of swaging reduces the diameter of the heater by compacting the unit; this directly improves the heat transfer and efficiency of the heater.
Duopu cartridge heaters are built using only the finest materials and construction methods and are backed with extensive quality assurance programs. With premium materials and tight manufacturing controls, the Duopu heater provides superior heat transfer, uniform temperatures, resistance to oxidation and corrosion and a long life even at high temperatures.
Duopu offers many delivery programs to meet your needs.
PT100 probe
Platinum resistance thermometers (PRTs) offer excellent accuracy over a wide temperature range (from –200 to +850 °C). Standard sensors are are available from many manufacturers with various accuracy specifications and numerous packaging options to suit most applications. Unlike thermocouples, it is not necessary to use special cables to connect to the sensor.
The principle of operation is to measure the resistance of a platinum element. The most common type (PT100) has a resistance of 100 ohms at 0 °C and 138.4 ohms at 100 °C. There are also PT1000 sensors that have a resistance of 1000 ohms at 0 °C.
The relationship between temperature and resistance is approximately linear over a small temperature range: for example, if you assume that it is linear over the 0 to 100 °C range, the error at 50 °C is 0.4 °C. For precision measurement, it is necessary to linearise the resistance to give an accurate temperature. The most recent definition of the relationship between resistance and temperature is International Temperature Standard 90 (ITS-90).
Ceramic infrared heat elements are efficient, robust heaters which provide long wave infrared radiation. The ceramic heaters and infrared heaters are used in a diverse range of industrial and engineering applications such as thermoforming heaters, packaging and as heaters for paint curing, printing and drying. They are also used very effectively in infrared outdoor heaters and infrared saunas. Ceramic elements produced by Duopu include ceramic trough elements, ceramic hollow elements, ceramic flat elements, and ceramic infrared bulbs.
Duopu infrared heat technology provides solutions for infrared heating elements in China and distribute to many countries around the world including ceramic elements, heaters, infrared heating elements and infrared bulbs China and worldwide.
Long Wave Ceramic Infrared Emitters are robust, standardized and very competitively priced. At 300 °C to 900 °C the ceramic heaters emit medium to long wave IR-radiation between 2 and 10 μm. Most plastics and many other materials absorb this wave length range very well. We supply two basic types: Solid Ceramic Emitters and Hollow Ceramic Emitters. The latter have a hollow space behind the heating coil that provides shorter heat-up and cool-down times and less heating losses to the rear. Both are available in standard dimensions either with or without thermocouples. Furthermore, matching accessories like reflectors are also available. These ensure that a radiation output of over 95 % can be directed to the front of the emitting surface.
Thermocouple Probes are designed for use in extreme temperatures, up to 2315°C (4200°F). These probes utilize either Platinum/Rhodium (types R, S, or B) or Tungsten/Rhenium (types G, C, or D) elements, with a variety of insulations and sheath materials. Depending upon the sheath material selected, these probes may be used in inert, oxidizing, reducing or vacuum conditions. The maximum temperature is based on the lowest max. temperature of the element, insulation and sheath material. Five cold end probe terminations are available: replacement probe, subminiature or standard size ceramic connector, heavy-duty standard size, molybdenum-sheathed nylon connector, or transition joint.
High Temperature Thermocouples are specifically designed for durability and reliability in high temperature applications to 4200° F (2315° C). Such applications generally involve oxidizing, reducing, inert gas or contamination atmospheres that challenge the life of the thermocouple.
Duopu band heaters are computer designed and manufactured to your specifications. Only the highest quality materials are used for optimal performance. Our stock band heater inventory is constantly growing. We stock a wide variety of heaters riglht on the shelf that are available for same day shipping. We also offer a three-day expedited service on custom designs and there is never a minimum order requirement.
While Duopu band heaters are commonly used in the plastic industry, they are also used in applications up to 1000°F. Termination options include leads, stainless steel braid, and post terminals. Clamping options are available for all mounting requirements. Special construction options include two piece construction, expandable construction, cutouts, and others.
Mica band heater is used primarily for conduction to cylinder objects used to heat extruder and injection into molding barrels. The cylinder shaped heater is ideal for heat transfer because it conducts an even distribution of heat throughout the surface it is used on. The reason a Mica band would be used is because the longevity that is with associated with the strength of heat conduction. A band heater can be used in a number of applications but are favored in the plastics industry.
At duopuheater.com our Mica Band heaters should not be used for a long period of temperature use at 600F or 315C, however, short term use up 900F is a possibility. Our Mica Band heaters are customizable by:
Diameter,Width,Watts,Volts,Construction.
While your band heater can be constructed with all of these features, we recommend that your watt densities should not exceed 40watts per square inch. At duopuheater.com we will construct any size or shape of Mica Band heaters. If our configurator cannot design the perfect band heater for you give us a call and we will configure it for you! Shop all of our Mica Band heaters now!
Mica band heater is used primarily for conduction to cylinder objects used to heat extruder and injection into molding barrels. The cylinder shaped heater is ideal for heat transfer because it conducts an even distribution of heat throughout the surface it is used on. The reason a Mica band would be used is because the longevity that is with associated with the strength of heat conduction. A band heater can be used in a number of applications but are favored in the plastics industry.
At duopuheater.com our Mica Band heaters should not be used for a long period of temperature use at 600F or 315C, however, short term use up 900F is a possibility. Our Mica Band heaters are customizable by:
Diameter,Width,Watts,Volts,Construction.
While your band heater can be constructed with all of these features, we recommend that your watt densities should not exceed 40watts per square inch. At duopuheater.com we will construct any size or shape of Mica Band heaters. If our configurator cannot design the perfect band heater for you give us a call and we will configure it for you! Shop all of our Mica Band heaters now!
Duopu offers a large range of catridge heaters (Standard or customized) to cover many applications especially in Plastic industry.
Excellent knowledge, high-quality materials as well as the outstanding manufacturing guarantee long life and excellent product features.
By intensive cooperation – also with special applications – Duopu gives again and again innovative impulses to its cartridge heaters with new technical features (e .g. humidity-resistant connection area).
Please find in our brochures a large range of standard products.
Application examples
Injection moulding – Internal heating of nozzles
Hot runner systems – Heating of manifolds
Packaging industry – Heating of welding bars
Packaging industry – Heating of hot stamps
Textile Industry – Heating of cutting knives
Paper Industry – Heating of stamping rolls
Laboratories – Heating of analytical equipment
Mica band heater is used primarily for conduction to cylinder objects used to heat extruder and injection into molding barrels. The cylinder shaped heater is ideal for heat transfer because it conducts an even distribution of heat throughout the surface it is used on. The reason a Mica band would be used is because the longevity that is with associated with the strength of heat conduction. A band heater can be used in a number of applications but are favored in the plastics industry.
At duopuheater.com our Mica Band heaters should not be used for a long period of temperature use at 600F or 315C, however, short term use up 900F is a possibility. Our Mica Band heaters are customizable by:
Diameter,Width,Watts,Volts,Construction.
While your band heater can be constructed with all of these features, we recommend that your watt densities should not exceed 40watts per square inch. At duopuheater.com we will construct any size or shape of Mica Band heaters. If our configurator cannot design the perfect band heater for you give us a call and wkke will configure it for you! Shop all of our Mica Band heaters now!
The cast-in heating plates and heating bands consist of one or several electrical resistances embedded in a block of aluminum, brass, bronze or cupronickel alloy providing excellent thermal conductivity.
Cast-in heating elements are ideal for applications requiring homogeneous indirect heat.
Cast-in heaters are often used in plastics industry, packaging industry, food industry and many others.
Usual applications: heating plates for presses, extruder dies and sheaths, heating plates for homogeneous heating (rubber, aerated concrete curing), sealing on packaging lines, mills.
Silicone rubber heaters are durable industrial products with amazing properties. Elements can be designed to heat up all areas evenly (ex. around holes, special shapes, distributed power) with the ability to maintain precise temperatures. Silicone rubber is flexible and resistant to many chemicals. Custom shapes and sizes for etched foil elements can vary in size from 1” sq. to 18” x 24”. Elements larger than 18” X 24” are available using wire wound construction. Consult factory for further details. A superior product when light weight, durability, precision heat and thermal control matter.
Commonly used in Industrial, Medical, Food Service and Enclosure applications, these heaters are resilient and reliable. Also referred to as Silicone Rubber Pad, Jacket, Mat and Blanket Heaters.
Flanged heaters are commonly used in many chemical, petroleum and water based applications. Consisting normally of an ANSI rated flange with several hairpin elements or bugle tubular elements extending from the face of the flange, this electric heater uses direct heat application to the liquid medium. A thermowell is often used within the bundle of elements to allow for a probe (either a thermocouple, RTD or basic mechanical thermostat) to relay temperature readings to a digital control panel that cycles and maintains the desired target temperature. Often a high limit sensor is also used to help protect liquid mediums from over heating and, offers protection to the flange heater as well.
Duopu cartridge heaters are swaged designs, made for use in applications where high watt density, high temperatures, and long service life are critical to minimizing mold service downtime and expensive press open time. The swaged construction produces a highly compacted cartridge heater that resists shock and vibration while providing for maximum element life through efficient transfer heating. Duopu cartridge heaters last up to 20 times longer than uncompacted cartridge heaters. UL/CUL component recognition available. Duopu will also custom manufacture cartridge heaters to your specifications.
Duopu Industries manufactures custom engineered temperature sensors for thermocouple, resistance temperature detector (RTD), or thermistor applications. We have a wide variety of industrial temperature sensor products suited for use in the plastics industry, industrial processing, as well as sanitary temperature sensors for the food and beverage industry. Our custom made temperature sensor probes and temperature sensor assemblies can tackle the toughest industrial process and OEM applications. Plus, our stock and standard design temperature sensors are available for same day delivery.
A cartridge heater is a tube-shaped, heavy-duty, industrial Joule heating element used in the process heating industry, usually custom manufactured to a specific watt density， based on its intended application. Compact designs are capable of reaching a watt density of up to 50W/cm2.
Temperature is the physical variable most often measured in machines and installations.
In the food, beverage and pharmaceutical industries, temperature sensors are used to ensure that products are at the correct temperature. In machine tool and automotive applications, the temperature or temperature difference measured at drives, gears and motors plays an important role as an indicator of the machine condition. In the steel, metal and glass industries, temperature monitoring of cooling circuits serves to prevent overheating of plants.
A large selection of ifm temperature sensors is offered to suit different temperature ranges, installation depths, environmental conditions and media.
Cartridge heaters are an extraordinarily versatile and durable product that is used to heat a myriad of different processes from heavy industrial – plastics and packaging applications to critical care medical devices and analytical test instruments to being used on aircrafts, railcars and trucks. Cartridge heaters are capable of operating at temperatures of up to 1400F and achieving watt densities of up to 260 watts per square inch. Available from stock or custom manufactured to your individual application need, they are available in many different imperial and metric diameters and lengths with many different style terminations, wattage and voltage ratings.
Cartridge heaters are an excellent choice to use as a conductive source for heating solid metal plates, blocks and dies or as a convective heat source for use in a variety of liquids and gases. Cartridge heaters can be used in a vacuum atmosphere with proper design guidelines.
Ceramic Trough/ curved Elements (FTE/HTE/QTE/FSR) are industry standard curved ceramic infrared heaters used in a wide range of industrial, commercial and domestic applications. These solid cast elements consist of a high temperature FeCrAL resistance alloy embedded in a specially formulated ceramic body allowing operating temperatures up to 800?C and a maximum power output of 1000W .
At Duopu infrared heat consultants, we are highly committed to the research & development surrounding our component lines which also has the capacity to inform the applications engineering side of our business. We have developed test and evaluation facilities focused on Infrared heating energy that are the first of their kind. Temperature and Thermocouples have always been a poor method of evaluating the performance of Infrared emitters. Duopu can now build on our research facilitating more infrared heat energy produced at a lower temperatures allowing more energy efficient processing. This can be seen in our energy efficient industrial heaters.
Ceramic heaters are medium-to-high temperature heaters that can deliver up to 1200°F. The nickel-chrome heating cores of these durable heaters are placed inside interlocking ceramic tiles that are assembled like a brick wall. A ceramic fiber insulating mat and a stainless steel jacket cover this assembly. This construction makes ceramic heaters flexible and highly energy efficient. An energized ceramic heater that operates at 1200°F internally will have around 400°F on its outside shell. Ceramic heaters consume 20 % less energy than band heaters that are not insulated.
An additional advantage of Ceramic heaters is that they transfer heat through conduction and radiation. This makes their tightness on barrels less critical; thus they are less prone to thermal expansion problems.
Cartridge heaters are high-density heating cells that have their nickel chrome heating cores positioned internally as close as possible to the outside shell. The specially formulated MgO electrical insulating medium utilized inside a cartridge heater is transformed into a rock-hard, highly efficient heat transferring medium through a special cold forming process.
Cartridge heaters can withstand tough industrial usage; they can transmit up to 200 watts/in2 heating capacity and are able to attain up to 1500°F sheath temperature. In order to facilitate installation and heat transmission, cartridge heaters are made 0.004 inches less than the nominal size of the receptacle hole, with a tolerance of +/- 0.002 in. Standard Bucan cartridge heaters are supplied with electrical leads that are connected internally within a 3/8 inch cold section. In excessively hot applications, the length of this cold section could be increased.
Cartridge heaters can be dual-voltage, three-phase, and/or supplied with a ground terminal. With ten different termination styles, mounting attachments and various optional features, Bucan high-density cartridge heaters are widely used in numerous high temperature industrial applications
Mica band heater is used primarily for conduction to cylinder objects used to heat extruder and injection into molding barrels. The cylinder shaped heater is ideal for heat transfer because it conducts an even distribution of heat throughout the surface it is used on. The reason a Mica band would be used is because the longevity that is with associated with the strength of heat conduction. A band heater can be used in a number of applications but are favored in the plastics industry.
At duopuheater.com our Mica Band heaters should not be used for a long period of temperature use at 600F or 315C, however, short term use up 900F is a possibility. Our Mica Band heaters are customizable by:
Diameter,Width,Watts,Volts,Construction.
While your band heater can be constructed with all of these features, we recommend that your watt densities should not exceed 40watts per square inch. At duopuheater.com we will construct any size or shape of Mica Band heaters. If our configurator cannot design the perfect band heater for you give us a call and we will configure it for you! Shop all of our Mica Band heaters now!
Mica Band Heater
Mica heaters are efficient and economical solutions to the heating requirements of many applications. Mica heaters can attain a maximum sheath temperature of 900°F, but with different electrical termination styles, clamping mechanisms, and ability to accommodate holes and cutouts, mica band heaters are successfully used in many applications, but are mostly sought for in the plastics industry.
Mica heaters made by DUOPU utilize different types of top grade mica. The thickness of each mica layer is carefully selected in order to balance between the insulating characteristics of mica and the ease of heat transfer from the heating core to the machine barrel.
The resistance wire ribbon used in a DUOPU mica heater is not restricted to the capabilities of Nichrome wire. Different alloys are considered for different applications. The internal winding is carefully designed to ensure uniform heat distribution throughout the band heater. To maximize the surface-to-surface contact, our mica heaters are carefully rounded and formed to optimize the grip on a machine barrel. The external metallic protective sheath of DUOPU band heaters is made of a special alloy, which expands less than the barrel when heated. This difference in thermal expansion makes the heater grip the barrel firmly once it is energized. This improves heat transfer which extends the life of the mica band heater.
Our flexible ceramic pad heater, also called ceramic mat heater, is manufactured with quality multi-strand 80/20 nichrome heating wire(NiCr80/20)and high alumina ceramic beads. It has standard 9″ cold tail length which is welded to the heating wire with pure nickle wire to keep the 60A brass camlock connector from being heated .
The ceramic bead is made of sintered 95% alumina(95% Al2O3). It enjoys high temperature resistance, excellent insulating property, and efficient thermal conductivity, which provides “FCP” heaters with exceptional electrical insulation,and thermal shock resistance and thermal conductivity qualities.
Designed for pre and post weld heat treatments (PWHT), our flexible ceramic pad heaters (FCP heater) functions efficiently whether they are used in a curved or flat application, and are available in an extensive list of sizes with voltages ranging from 30 volts to 255 volts, using different connectors among different countries, either Engligh camlock connector, or DINSE welding cable connectors.
We are ready to make any custom design heater as well.
Ceramic heaters are medium-to-high temperature heaters that can deliver up to 1200°F.
The nickel-chrome heating cores of these durable heaters are placed inside interlocking ceramic tiles that are assembled like a brick wall.
A ceramic fiber insulating mat and a stainless steel jacket cover this assembly. This construction makes ceramic heaters flexible and highly energy efficient.
An energized ceramic heater that operates at 1200°F internally will have around 400°F on its outside shell.
Ceramic heaters consume 20 % less energy than band heaters that are not insulated.
An additional advantage of Ceramic heaters is that they transfer heat through conduction and radiation.
This makes their tightness on barrels less critical; thus they are less prone to thermal expansion problems.
Theoretically, there are no restrictions on the diameter that ceramic heaters can attain;
However, because these heaters utilize ceramic tiles that are available only in specific lengths, the width of these heaters falls within a certain incremental range of sizes.
Ceramic band heaters are available with different clamping mechanisms, terminations styles, holes and cut-out.
k type thermocouples usually work in most applications as they are nickel based and exhibit good corrosion resistance. It is the most common sensor calibration type providing the widest operating temperature range.
Silicone Rubber Heater can be manufactured from etched foil or from resistance wire as a wire wound circuit. The circuit pattern is vulcanized between two layers of silicon rubber and can be easily mounted to heat sinks or devices that need to be heated.
Type J- (Iron-Constantan) has a more restricted range than type K (−0 to +750 °C), but higher sensitivity of about 55 µV/°C.The Curie Point of the iron (770 °C)causes an abrupt change in the characteristic, which determines the upper temperature limit.
Temperature Range- 0 to 600°C
Mica Band heaters are constructed with a mica core wound with wire. The core is then bent into a circle band. Leads are attached before the final outer sheaths are attached to complete the heater.
Convenience, the design of all functions in a single user no longer requires a separate controller
Suitable for all kinds of heating applications, will not cause damage due to chemical and water overflow.
ceramic heater core is a mineral insulated band heater designed for applications that require high watt density and/or high operating temperatures. leister heating element has a thin low profile cross section using all stainless steel sheath material.
Tubular heating element made by Saudi Arabian customer has been packed, please pay attention to the receipt!
Tubular heaters are the most versatile and the best-suited industrial heating solution for a large number of applications. Tubular elements are factory-configured to almost any shape or size. Custom bending diameters can be made upon request and we can manufacture a variety of industrial heating solutions . Tubular heaters are typically made using steel, stainless steel, Incoloy, inconel or titanium alloys. Tubular heaters are often regarded as the foundation of all heating elements. These heating elements have a strong outer sheath to help protect the process heater from physical stress and uses high quality alloys to allow efficient heat transfer from resistance coil to your heating medium.
Hot Runner Coil Heaters are made of nickel chrome resistance wire placed inside chrome nickel steel tube filled with MgO powder and compacted for faster and efficient heat transfer. The heaters are annealed to acquire malleability for bending into any shape. Hot runner heaters with built in thermocouple are also available. Hot runner bushes are produced with hot runner heaters of different cross section with inner brass and outer stainless steel cover.
Tubular heaters are the most versatile and the best-suited industrial heating solution for a large number of applications. Tubular elements are factory-configured to almost any shape or size. Custom bending diameters can be made upon request and we can manufacture a variety of industrial heating solutions . Tubular heaters are typically made using steel, stainless steel, Incoloy, inconel or titanium alloys. Tubular heaters are often regarded as the foundation of all heating elements. These heating elements have a strong outer sheath to help protect the process heater from physical stress and uses high quality alloys to allow efficient heat transfer from resistance coil to your heating medium.
Cartridge heaters are made of metal tube (including stainless steel and copper tube), along the central axis of the tube, the spiral electric alloy wire (nickel chrome, iron chrome alloy) are uniformly distributed. The gap fills compacted magnesium oxide with good insulation thermal conductivity performance, the nozzle ends sealed with silicone, this metal armored heating elements can heat the air, metal molds and a variety of liquids.
k type thermocouples usually work in most applications as they are nickel based and exhibit good corrosion resistance. It is the most common sensor calibration type providing the widest operating temperature range. Due to its reliability and accuracy the Type K thermocouple is used extensively at temperatures up to 1200°C. This type of thermocouple should be protected with a suitable metal or ceramic protection tube, especially in reducing atmospheres. In oxidizing atmospheres, such as electric furnaces, tube protection is not always necessary when other conditions are suitable; however, it is recommended for cleanliness and general mechanical protection. Type K will generally outlast Type J because the JP wire rapidly oxidizes, especially at higher temperatures.
Type J- (Iron-Constantan) has a more restricted range than type K (−0 to +750 °C), but higher sensitivity of about 55 µV/°C.The Curie Point of the iron (770 °C)causes an abrupt change in the characteristic, which determines the upper temperature limit.
Temperature Range- 0 to 600°C
ceramic heater core is a mineral insulated band heater designed for applications that require high watt density and/or high operating temperatures. leister heating element has a thin low profile cross section using all stainless steel sheath material. The clamping brackets are formed from the outer sheath of the band heater providing a unique one-piece built-in construction strap.
Excellent electrical insulation and high dielectrric strength.super fast heat increase,efficient thermal conductivity and rapid temperature come back which make it suitable for continuous soldering work.small size and high power make it possible to achieve the muniaturzation of equipments.
Convenience, the design of all functions in a single user no longer requires a separate controller
Suitable for all kinds of heating applications, will not cause damage due to chemical and water overflow.It can provide heating with constant temperature control.With double insulation resistance wire woven glass fiber, it is flat and tropical, then completely enclosed in high strength, high temperature resistant silicone rubber.
Cartridge heaters are made of metal tube (including stainless steel and copper tube), along the central axis of the tube, the spiral electric alloy wire (nickel chrome, iron chrome alloy) are uniformly distributed. The gap fills compacted magnesium oxide with good insulation thermal conductivity performance, the nozzle ends sealed with silicone, this metal armored heating elements can heat the air, metal molds and a variety of liquids.
Cartridge heaters are made of metal tube (including stainless steel and copper tube), along the central axis of the tube, the spiral electric alloy wire (nickel chrome, iron chrome alloy) are uniformly distributed. The gap fills compacted magnesium oxide with good insulation thermal conductivity performance, the nozzle ends sealed with silicone, this metal armored heating elements can heat the air, metal molds and a variety of liquids.
Finned tubular heater is a common heavy metal elements, and around the surface of the heat radiating area, expand in comparison with ordinary components of the 2-3 times, the power load allowed fin elements 3-4 times that of ordinary elements.due surface to shorten the device length, reduce heat loss, under the condition of the same power will accelerate global warming, uniform heating, good thermal conductivity, high thermal efficiency, long service life, the heating device is in size, low cost.
Tubular heaters are the most versatile and the best-suited industrial heating solution for a large number of applications. Tubular elements are factory-configured to almost any shape or size. Custom bending diameters can be made upon request and we can manufacture a variety of industrial heating solutions . Tubular heaters are typically made using steel, stainless steel, Incoloy, inconel or titanium alloys. Tubular heaters are often regarded as the foundation of all heating elements. These heating elements have a strong outer sheath to help protect the process heater from physical stress and uses high quality alloys to allow efficient heat transfer from resistance coil to your heating medium.
Silicone Rubber Heater can be manufactured from etched foil or from resistance wire as a wire wound circuit. The circuit pattern is vulcanized between two layers of silicon rubber and can be easily mounted to heat sinks or devices that need to be heated.
Silicone rubber's flexility can make your Silicone Rubber Heater in the shape of flat, spiral wrap, blanket, and molded to shape. Silicon rubber heater can be supplied with thermistors , thermostats, thermal fuses and thermocouples.
Silicone rubber's flexility will assemble the heater to your application through the process of vulcanization and the use of silicone and pressure sensitive adhesives.
Mica Band Heaters and Temperature customized by Australian customers are ready.
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Japanese custom-made ntc has been packaged and shipped. I hope you can give us some valuable suggestions on our products.