Watlow is the largest custom designer and manufacturer of industrial electric heaters, sensors, controllers and software; with offices and manufacturing facilities around the world.
Watlow brings its thermal expertise to numerous applications, including semiconductor, analytical instrumentation, medical equipment, plastics processing, foodservice equipment, packaging, aerospace and others.
Watlow manufactures a myriad of types of heaters. Included in the Watlow mix are:
Advanced Ceramic Heaters
When you need a lot of power in a small package, the ULTRAMIC® 600 puts the performance of advanced ceramics to work for you. Constructed of aluminum nitride (AlN), the ULTRAMIC 600 can operate up to 600°C (1112°F) and deliver ultra-fast ramping of up to 150°C (270°F) per second for rapid thermal cycling applications.
Band & Nozzle Heaters
Led by the high performance MI (mineral insulated) Band heater, the patented, flexible THINBAND® heater and the standard mica band heater for specialized constructions, Watlow's band and nozzle heaters are ideal for every type of plastics processing equipment.
The Watlow FIREROD® heater enters its 50th year of industry leading expertise as the premier choice in swaged cartridge heating. With premium materials and tight manufacturing controls, the FIREROD heater continues to provide superior heat transfer, uniform temperatures and resistance to oxidation and corrosion even at high temperatures.
FIREROD offers many delivery programs to meet your needs: same day shipment, Ship-to-Stock or Just-in-Time. And our experience in customized engineering is reflected in over 250,000 FIREROD cartridge heater designs. Stock or made-to-order, the Watlow FIREROD delivers heat in a hurry.
When Watlow creates a custom-engineered cast-in product, the result is more than just a heater. It's a "heated part" that becomes a functional component of your equipment, designed in the exact shape and size you need. The IFC heated part consists of a Watlow heater element built into custom metal shapes designed specifically for your application.
Ceramic Fiber Heaters
Ceramic fiber heaters integrate a high temperature iron-chrome-aluminum (ICA) heating element wire with ceramic fiber insulation. Numerous stock, standard and/or custom shapes can be provided, achieving the "heated insulation" concept for your high temperature, non-contact applications. The ceramic fiber insulation isolates the high temperatures inside the heated chamber from the outside. The heaters are low mass, fast heating, with high insulation values and self-supported heating elements that offer some of the highest temperature heating capabilities within the Watlow family of heater designs.
Circulation & Process Heaters
Watlow's circulation heaters are compact heating solutions for fluids such as purified and inert gases, supercritical fluids and liquids like de-ionized water for use in semiconductor and electronics industries as well as for general liquid and gas heating applications.
Watlow's industrial process heater lines of immersion, circulation and duct heaters are used to heat a myriad of high and low viscosity fluids ranging form de-ionized and process water, oils, solvents, rinse agents, caustic solutions, etc. to process gases like air, nitrogen, purified and inert gases as well.
Coil & Cable Heaters
The versatile Watlow cable heater can be formed into a variety of shapes as dictated by its many applications. These small diameter, high performance units are fully annealed and readily bent to your desired configuration.
Flexible heaters from Watlow are just what the name implies: thin, bendable and shaped to fit your equipment. You can use your imagination to apply heat to the most complex shapes geometries conceivable without sacrificing efficiency or dependability.
Click here to find out more about Watlow's syringe heaters. You can also view a short animated presentation demonstrating a syringe heater application.
The multicell heater from Watlow offers independent zone control for precise temperature uniformity, loose fit design for easy insertion in and removal from the equipment and extreme process temperature capability. The heaters are available with up to eight independently controllable zones and one to three internal thermowells for removable sensors. Custom assemblies are available
Watlow offers a full line of hot runner nozzle heaters for the plastics industry as well as slip-on heaters for the medical and analytical industries. While every heater has a unique set of capabilities, each nozzle heater is designed to meet specific application requirements. Whether you require high performance, high temperature or high watt density Watlow has the heater to best fit your application. Watlow's family of nozzle/slip-on heaters include, THERMASLEEVE™ nozzle, MI nozzle, syringe, thick film cylindrical, mica nozzle, coiled nozzle, mini-coil nozzle and metric mini K-RING® nozzle heaters
The THERMASLEEVE nozzle heater is a low profile, high-performance electric heater with rapid thermal response that allows the heat to be created precisely where it is needed. The patented manufacturing technology features a computer-controlled laser cutting technique that precisely generates the power distribution pattern. The heater is designed to have intimate contact with the surface of the nozzle, which optimizes heat transfer. This intimate contact combined with lower heater mass contributes to rapid thermal response to and from the nozzle tip. This helps reduce cycle times and ensures high quality final parts.
For the latest in heating technology from Watlow, specify a heated plastic part in your next product. Watlow's heated plastic parts combine resistive heating elements with thermoplastic compounds to create a heated assembly. Watlow utilizes standard compression molding techniques to produce heated plastic parts that are durable, safe and cost-effective
With Watlow's diverse RAYMAX® radiant heater line, we have a solution for almost any application requiring radiant heat. Our capabilities cover a wide range of needs, from contamination-resistant panel heaters to fast-responding quartz tubes to rugged tubular elements and high temperature ceramic panels.
Applying radiant heaters can be complicated. Watlow's engineering staff has the level of training required to help you meet your application requirements, providing a high degree of technical support such as conducting testing for your application at our facility, calculating your watt density and temperature requirements, and recommending system components such as sensors and controllers. With our experience in a wide range of industries, chances are Watlow has already helped someone handle a radiant heating application like yours.
Watlow's mica and 375 strip heaters are the versatile solution for a number of applications. They can be bolted or clamped to a solid surface for freeze and moisture protection, food warming and other applications. The 375 finned strip heaters are commonly used for air heating, drying ovens and space heaters
Thick Film Heaters
Watlow layers thick film resistor and dielectric materials on quartz and stainless steel to produce high performance industrial heaters. The thick film heaters provide very fast temperature response and uniformity on a low-profile heater. Thick film heaters are ideal for applications where space is limited, where conventional heaters can't be used, when heat output needs vary across the surface, or in ultra-clean or aggressive chemical applications.
Watlow's WATROD tubular heater elements and flat FIREBAR elements are designed primarily for direct immersion in liquids such as water, oils, solvents and process solutions, molten materials as well as air and gases. By generating all the heat within the liquid or process, these heaters are virtually 100 percent energy efficient. These versatile heaters can also be formed and shaped into various geometries for radiant heating and contact surface heating applications. UL® and CSA component recognized elements available.
Watlow also manufactures their own sensors and controls. The new line of EZ-Zone heaters is state of the art. The Watlow sensor plant can deliver custom sensors within a week or less.
Examples of Watlow controllers are :
Watlow has released four revolutionary integrated controller products: the EZ-ZONE® PM panel mount controller, the EZ-ZONE ST integrated control loop, the EZ-ZONE RM multi-loop integrated controller and the EHG SL10 process controller and safety limit. All of these modular products combine multiple functions into one integrated control system leading to:
Fewer aggravationsThese products give you the ability to utilize just one component. These products' advanced designs give you the ability to add or subtract modulars as your requirements change.
Single-Loop PID Controllers
All Watlow single-loop auto-tuning temperature and time/temperature profiling controllers are available in 1/32, 1/16, 1/8 and 1/4 DIN sizes. Agency-approved Watlow single-loop, auto-tuning temperature controllers automatically set PID control parameters for optimum system performance. Manual settings also permit on-off, P, PI or PID control modes.
Watlow's time/temperature profiling (ramping) controllers set new standards of performance. All are available with a broad range of industry standard I/O and communication options.
All Watlow single-loop controllers are designed and manufactured to withstand harsh industrial environments and come with a three-year warranty for CONTROL CONFIDENCE®. These single-loop PID controllers are complete with auto-tune for easy setup and both compatible for environmental chamber and semiconductor manufacturing applications.
Multi-Loop PID Controllers
All Watlow® multi-loop time/temperature controllers offer auto-tuning which automatically sets PID control parameter for optimum system performance. Watlow’s multi-loop controllers feature manual settings permitting on-off, P, PI or PID control modes.
With up to 32 control loops, Watlow PID controllers deliver the options and performance demanded by complex process applications. Each time/temperature controller offers a wide range of I/O options with exceptional accuracy. Inputs can be multiple and mixed, including thermocouple, RTD and process. Multiple job/recipe storage makes batch setups fast. Versatile alarms, serial communications and remote operation or data logging round out the features.
These Watlow multi-loop controllers are designed and manufactured to withstand harsh industrial environments, and come with a three-year warranty for CONTROL CONFIDENCE®.
Watlow® single- and multi-loop limits/alarm controllers provide a low-cost solution for single- and multi-channel, redundant temperature monitoring. These limits and alarms can continuously monitor thermocouples, RTDs or thermal switches. Agency approved performance in safety limit applications, including UL®, CSA, A.G.A. and FM (on some models). All are available with industry standard I/O options. All Watlow limit/alarm controllers are designed and manufactured to withstand harsh industrial environments, and come with a three-year warranty for CONTROL CONFIDENCE®.
Power Switching Controllers
Watlow solid state power controllers complement the rapid switching required by PID temperature controls and help deliver optimum system performance and service life. Available in 1-phase and 3-phase/2-leg and 3-leg configuration, Watlow power controllers meet most industrial heating applications. Random, zero cross or phase angle fire options allow for a variety of applications.
Watlow provides more than 80 years of manufacturing, research and quality for your temperature sensing needs. A tremendous stock of general application, mineral insulated, base and noble metal thermocouples are available.
Hundreds of thermocouples are available as part of our Rapid Ship sensor program. These sensors are shipped directly to you in one or two days.
Watlow also has three new surface temperature sensors. The MICROCOIL™, radio frequency thermocouple probe and true surface thermocouples all incorporate isothermal physical principles to achieve superior surface temperature measurement. The isothermal design provides accurate sensing because the areas of the temperature sensor that are exposed to normal process variances are positioned outside the thermal gradient.
RTDs and Thermistors
Watlow's platinum resistance elements are specially designed to ensure precise and repeatable temperature versus resistance measurements. The sensors are made with controlled purity platinum wire and high purity ceramic components. They are constructed in a unique, strain-free manner.
Several RTD styles are available in the recently revamped Rapid Ship sensors program. These sensors are delivered straight to you in one to two days.