Dydac Controls

Mayur Vihar, Delhi

Buy structurally robust, excellently finished, durable and highly reliable Ceramic Infrared Heaters from us at competitive prices. Made using premium raw materials that are rust proof, our entire range is of unmatched standards. We are ranked among eminent traders of branded Ceramic Infrared Heaters and creators of high performance ones as well. We offer them in a variety of designs, styles and sizes to meet varied requirements of customer. We offer customized Ceramic Infrared Heaters for the same as well.

Description :

• Ceramic infrared heaters are 96% infrared energy efficient. Uses for electric infrared heat can be found in many industries and applications and can be grouped into four major categories -
  • Curing
  • Drying
  • Heating

• Within each of these major categories are literally hundreds of specific applications, and the list keeps growing as technology develops.
• Our ceramic infrared heaters (emitters) are manufactured with three basic emitter faces: Concave, Flat and Convex. These emitter face styles will result in the specific radiant emission pattern as shown in our Ceramic Infrared Emitters Technical Manual. The concave surface will emit a “concentrated” radiant pattern which is highly effective when zone heating is desired as well as radiant heating in general. Flat surface emitters will produce a “uniform” pattern for even heating at a close proximity between the emitter and the target being heated. Finally, the convex shaped emitter gives off a “wide area”
• pattern which is desirable in comfort heating or other applications that require a dispersed radiant emission pattern.
• These heaters are durable, splash-proof and have a non-corrosive finish. Maximum temperature output of up to 1292^oF (700^oC). 

Features and size : We make available this type of heater in standard size of

• 122mm x 122mm,
• 245mm x 60mm
• 122mm x 60mm.
• These heaters are available in power ratings of 250w, 400w, 600w, 800w & 1000w.
• These heaters come with & without thermocouple.

Applications :

• Thermoforming
• Vacuum Forming
• Shrink Wrapping / Fitting
• Mold Heating
• Drying Applications
• Paint & Powder Industrial

Our company shares glorious credentials with the eminent Manufacturers, Suppliers and Exporters of Short Wave Infrared Heaters. The Heaters offered by us are widely used in screen-printing curing on t-shirts and textiles. Bulk orders of these are processed by us as per th specific requirements of the buyers.

Infrared Heating Technology :

• Technology that harnesses the power of infrared radiation can provide a powerful and efficient process heat source.
• Infrared heaters with IR technology are well-suited to a wide variety of applications and designed to transmit large amounts of energy quickly and with high efficiency. The particular wavelength of the infrared radiation has a critical effect on the effectiveness of the heating process. Infrared heaters, which are optimally matched to the materials to be heated, can provide energy savings of up to 50% over other technologies. Infrared heaters and infrared heating technology offer significant advantages: heat exactly where it is needed, with the optimum wavelength for the product and in line with the process. Dydac offers a complete range of heaters.
• We offer and design radiant heating products and equipment for industrial processes using proven  infra red technology. This site offers information on our company and our complete product line including radiant heaters and heating equipment for process applications. We offer a full spectrum of high and low intensity heat for industrial processes
• As energy costs keep rising, you may consider efficiency measures to save energy and curb energy costs. Process heating accounts for a high percentage of energy use for most industries. Infrared heating technology, a clean and efficient heat transfer measure, is a great solution for your business.

Method of Heat transmission :

• Conduction
• Convection
• Radiation

Quartz Infrared Lamps  :

• Quartz infrared lamp is a high efficiency heating radiator that can heat up to 900 ¢XC and cool down in seconds.
• It is made of high purity of quartz tube and Tungsten wire, filling with halogen gases inside the tube to protect tungsten wire and avoid filament oxidation when working.
• The emitted radiation of the lamps is much more effective than other heat transmission methods such as convection or conduction heating. Objects or their surfaces can be heated up from rather distant light source even through a glass window.
• Instant radiation from the lamp allows fast and flexible thermal processes
• The color temperature of quartz infrared lamps is around 2400 to 2500¢XK.
• Quartz infrared lamp is a short wave IR emitter. The IR wavelength of the radiation emission is between 1 to 2 £g.
• The lamp can equip with all kinds of ceramic caps.
• The length and material of the sleeves can be custom by customer's request
• The quartz tube can be coated with a layer of gold or ceramic as a reflector.
• The use of reflectors enables accurate aiming of the radiation and raising the infrared output.  The average working life of the lamp lasts 5000 hours
• In addition to the standard straight tube, we also developed the quartz infrared lamps in various different shapes and sizes. Our products are available in different forms matched to different requirements. The lamps could be designed and manufactured according to the customer's request or drawing

Features :

• All of our emitters can be coated with a layer of gold or ceramic as reflectors. The gold/ ceramic coating can concentrate the heat, increasing the effectiveness of the heat output.
• The emitters with coating are highly economical, converting practically all the consumed electrical power into heat
• For the emitters with high watt density or the surface temperature of the tube above 800¢XC , we suggest to use ceramic coating as reflector because the temperature resistance is up to 1000¢XC
• In addition to 180¢X (half-tube) coating, we also manufacture 270¢X coating or other customer specified degrees
• As energy costs keep rising, you may consider efficiency measures to save energy and curb energy costs. Process heating accounts for a high percentage of energy use for most industries. Infrared heating technology, a clean and efficient heat transfer measure, is a great solution for your business.
• In general, conduction and convection require heat-transmitting media such as solid, liquid, or gas. However, in the process of heat transmission by conduction and convection , most of heat is wasted. Radiation has higher thermal efficiency by directly transmitting the heat to the object without requiring any media.
• Infrared radiation, one of the electromagnetic radiations, travels in a straight line at the speed of light from the heat source. In the process of travel, the energy of infrared radiation is not absorbed by air and directly transmits the heat to heated substance from the heat source; therefore infrared radiation is a very efficient source of radiant energy. Infrared radiation can save the process time and reduce the energy costs when applied in the industrial use.

We are bracketed among the distinguished Manufacturers, Suppliers and Exporters of Tubular Manifold Heaters. Our Heaters provide the best combination of physical strength, high emissivity and good thermal conductivity. We have all the in-house facilities to deliver bulk orders of these within the stipulated time frame.  Buyers can obtain these at nominal rates from us.

Description :

• Tubular Heaters are generally  Formed to specified sizes in Hot Runner Manifolds and Hot Plates. these heaters are mainly used for Hot Runner manifolds and Hot Plates .
• We offer Tubular Heaters for superior performance and life expectancy to withstand high sheath temperature and provide the best combination of physical strength, high emissivity & good thermal conductivity to heat hot runner manifolds and Hot Plates.
• For manufacturing manifold tubular heaters it is necessary to provide an accurate dimensional sketch showing all centre distances, bending radius and path.
• Formed Tubular Heaters is supplied in Chrome Nickel Steel with nominal sheath diameter of 6 mm, 6.5 mm and  8.00mm  Standard elements have a threaded terminal post which gives a cold section of approx 40mm minimum.
• For manufacturing manifold tubular heaters it is necessary to provide an accurate dimensional sketch showing all centre distances, bending radius and path.

How To Order : Please send a detailed dimensional drawing file showing all center distances along with

• Total path length
• Wattage
• Voltage
• Required quantity

Length Tolerances :   ± 2 %

Diameter Tolerence : ± 0.10 mm

We are offering wide range of Cartridge Heaters available in a variety of designs, styles and dimensions. Made from superior-grade raw materials, our Cartridge Heaters are robust, energy efficient, excellently finished, optimally functioning and durable. They have a long service life and completely safe. Buyers can get Cartridge Heaters from us at market leading prices and place bulk orders. We offer customized Cartridge Heaters as well.

Cartridge Heater Selection :The key questions which need to be answered before selecting a cartridge heater are -

• How much wattage is required?
• What voltage will be used?
• What is the heated length required?
• How long do the heater leads need to be?
• What is the diameter required?
• What is maximum temperature?
• What is the ambient temperature?

Application Of Cartridge Heaters : The majority of applications do not require maximum watt/in². Use a watt density only as high as needed. Take advantage of the safety margin provided by using ratings less than the maximum allowed. Select space heaters for most even heat pattern rather than the highest possible wattage per heater.

Hi-Density Cartridge Heaters :Hi-Density Heaters provide localized heating in processes requiring close temperature control such as -

• Dies
• Molds
• Hot stamping
• Packaging equipment
• Plastic extruders
• Injection molding mach.
• Platens
• Labeling
• Bag sealing
• Medical equipment

Maximum Temperature : 932^oF (500^oC).

Standard Sizes and Ratings by Diameter :  6.5mm, 8 mm, 10 mm, 11.5mm, 11.8mm, 12.5 mm,  16 mm, 18.5 mm, 19.5 mm, 20 mm.

Temperature Controllers and Sensors for : Cartridge Heaters : The sensor for the temperature control is also an important factor and should be placed between the working surface of the part and the heaters. The temperature of the part approximately 1/2" away from the heaters is used in selecting maximum allowable Watt density from the graph.Control of power is an important consideration in high Watt density applications. On-off control is frequently utilized, but it can cause wide excursions in the temperature of the heater and working parts. Thyristor power controls are valuable in extending the life of high Watt density heaters, since they effectively eliminate on-off cycling. There are a variety of temperature controllers and sensors one can use depending on the application. One of the more popular sensor types for cartride heater applications are the surface mount temperature sensors. Thermocouple, RTD or Thermistors are available with an adhesive backing or the ability to be cemented to the surface being heated. There also bolt on and magnetic surface mount type temperature sensors available. Digital temperature controllers come in many different sizes with many output and input choices. hermcouple and RTD inputs are the most popular with a dc pulse output. DC pulse ouputs allow the user to go to a larger relay to switch the heater load and use proportional control versus on/off control which can shorten the heater life.

Important Installation Considerations :

• For closest fit and best heat transfer, use reamed holes.
• When possible, drill holes through the object being heated. This will make heater removal easier.
• When using an anti-seize coating like Copper Graphite paste, do not apply over lead wires or any other current carrying conductors.
• When using insulated tape or sleeving, check to make sure they are rated for the temperature of the application. Lower temperature rated materials can contain an adhesive or binder that can carbonize and become electrically conductive.
• When using heaters near their maximum recommended watt density, it is recommended the temperature sensing probes be approximately 1/2" from the heater sheath.
• Lead wires should not be located in the hole containing the cartridge heater during operation. This may cause the lead wires to be exposed to temperatures above their rated temperature.

• Many applications will subject a heater’s electrical terminations to one or more of the following potentially damaging conditions:
  • Moisture
  • Flexing
  • Oil and other contaminants
  • Abrasion
  • High temperature

• Note: To protect the heater from damage in these harsh environments, Dydac has a wide selection of terminations and options available.

• Recommendations for Improving the life of Dydac High Watt Density Cartridge Heaters

• Dydac Hi-Density Cartridge Heaters have been widely used in many demanding and diverse applications during the past quarter century. The most common applications are platen, plastic mold and die heating, liquid immersion and air heating. Selection of the wrong termination for the particular application is the major reason for all heater failures. However, failure to consider other important criteria can also have a negative effect on the life of the heater. To get the best performance and assure long life, it is important to carefully evaluate the following factors.

• Heater Watt Density and Operating Temperature : Cartridge heater watt density is defined as the wattage dissipated per square inch of the heated sheath surface. For a particular application a heater’s watt density governs internal resistance wire temperature, which determines the outer sheath temperature. It is advisable to use heaters that have watt densities below the maximum recommended watt density for the material being heated to achieve the longest heater life. A Hi-Density cartridge heater designed at the maximum recommended watt density allows the smallest heater to be used to obtain the required wattage with good service life. All things being equal, using a lower watt density heater will typically provide optimized service life.
• Determining Fit : When heating a platen, mold, die or hot runner probe with Hi-Density Cartridge Heaters inserted into drilled holes, fit is an important factor in determining the life expectancy of the heater.
• Temperature Control and Location of Temperature Sensing Device : In order to better control the heater temperature and hence the resistance wire temperature, use of an appropriate temperature control and the proximity of the heater to the sensor is very important.  Higher watt density heaters can generate heat faster than the surrounding area’s ability to dissipate heat. This creates a thermal lag between the heater and the sensor. The closer the sensor to the heater, the better you can control the heater temperature. By keeping the sensor further from the heater, temperature gradients of several hundred degrees can be observed in many applications, especially during initial start-up and heavy thermal cycling. Although the set operating temperature may be low, the heater may be running at a very high temperature. This is a common cause of heater failure. This can be minimized using time proportional and PID functions of the temperature Controllers.
• Temperature Control and Location of Temperature Sensing Device : In order to better control the heater temperature and hence the resistance wire temperature.
• Power Control : Power control methods affect the life expectancy of heating elements. In general, although economical, on-off controls increase thermal fatigue and oxidation rate on heating elements by causing wide temperature swings of the internal heating element. Silicone controlled rectifiers (SCR’s),   and solid state power controls can increase the life expectancy of heating elements by reducing the temperature swings of the internal heating element

We are providing a wide array of Medium Wave Infrared Heaters. Available in a variety of specifications, our Medium Wave Infrared Heaters are high performance, energy efficient and render long service. They are easy to operate and wash. Buyers can get Medium Wave Infrared Heaters from us at market leading prices and place bulk orders as well. Buyers can get exemplary after sales for Medium Wave Infrared Heaters from us as well.

Description : IR Medium VVave Single tube emitter although technologically outdated bythe twin tubes emitters in some circumstances are considered still very useful, efficient and reliable thanks to the easier installation and lower production cost, quartz, thanks to its long track record and wide set of products always in stock, can advise the customer choosing the right emitters for the specific application. Furthermore the Technical Department can also design the emitter based on the customer`s specific technical instructions :

• Total length of the emitter
• Length of the heating part
• Filament and ending configuration
• Power
• Voltage

The main characteristics of IR Medium Wave emitters are:

• Radiation peak in the range of 2, 2 - 3, 2pm
• 60 kW/mz maximum surface power density
• Long lifetime of the emitter

Features :

• Possibility to apply a reflector directly on the quartz tube, to better convey and focus all the energy emitted on the material tube IR emitters with different filament configuration. This allows an extraordinary flexibility both in term of heated area modularity and cables position. in the picture aside there are represented some of the
• most common filament configuration.
• The lR Medium Wave radiation is positioned in the range of 2, 2 e 3, 2 pm as shown in the graph on the right.
• Helios Italquartz can design and realize the right IR  emitter with the peak of radiation centered on the maximum IR radiation absorbance of the material to be heated; this allows to obtain the most efficient heating process with the less energy consumption.
• The lR Medium Wave emitters are particularly suitable for the fast heating of surface parts or thin  thickness materials.
• Plastic, water and other solvents absorb particularly well the radiation at this wavelength.