W. H. Cooke & Co., Inc.

Manufacturer of thermocouples and RTD's. Supplier of industrial controls, heaters, and sensors since 1963.

Phone:717-630-2222

Email: sales@whcooke.com

Heaters

Manufacturers

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Featured Products

    • Indeeco Pipe Thread Heaters

    • Process Technology Triple Metal Heaters

    • Process Technology 3HX Series - Three Element Fluoropolymer (PTFE) Heaters

    • Dalton Watt-flex Split-Sheath Cartridge Heaters

    • Mica Insulated Band Heaters

    • Electric Duct Heater

    • Silicone Rubber Heaters

    • Barrel/Drum Heaters

    • Industrial Mica Strip Heaters

    • Finned Tubular Heaters

    • Coil Heaters

    • Silicone Drum Heaters

    • Mica Drum Heaters

    • Indeeco TRIAD Washdown / Corrosion Resistant Unit Heater

    Featured Items:

    • Indeeco Pipe Thread Heaters

    • Process Technology Triple Metal Heaters

    • Process Technology 3HX Series - Three Element Fluoropolymer (PTFE) Heaters

    • Dalton Watt-flex Split-Sheath Cartridge Heaters

    • Mica Insulated Band Heaters

    • Electric Duct Heater

    • Silicone Rubber Heaters

    • Barrel/Drum Heaters

    • Industrial Mica Strip Heaters

    • Finned Tubular Heaters

    • Coil Heaters

    • Silicone Drum Heaters

    • Mica Drum Heaters

    • Indeeco TRIAD Washdown/Corrosion Resistant Unit Heater

    • Element bends repressed uniformly to insure electrical insulation integrity. One piece forging of hex, thread and riser assures reliability. Element spacers prevent hot spots. Bussing is permanent and encapsulated in epoxy seal. UL CSA label furnished on all standard copper, stainless steel and Incoloy sheathed heaters, NEMA Type 1, 4 and 4x environments.

    • SUPERIOR CHEMICAL RESISTANCE: Materials available for use in most aqueous alkaline solutions, plating solutions, and rinse tanks. Check solution recommendation chart or with your chemical supplier for proper sheath material selection. RUGGED CONSTRUCTION: Heavy wall metal sheaths and screw plug available in steel, 304 stainless steel, 316 stainless steel and titanium. OUTSTANDING PERFORMANCE: Watt densities of 35 watts per square inch (5.4 w/cm2) ensure long service life. CORROSION RESISTANT HEAD: Vapor resistant, flame retardant polypropylene terminal enclosure with 3-foot (.9m) flexible PVC liquid tight conduit. SAFETY FEATURES: Grounded construction, Thermal protector built in. Replaceable P1 protector standard for solutions up to 180°F (82°C)., Non-floating construction. CERTIFICATIONS: cULus (except steel) and CE. SIZES: 3,000 watts to 36,000 watts. VOLTAGES: 240 to 600 volts. Single phase standard, three phase available.

    • SUPERIOR CHEMICAL RESISTANCE: Inert to most aqueous acid, alkaline, anodizing and pickling solutions up to 212°F (100°C). RUGGED CONSTRUCTION: Heavy wall fluoropolymer (PTFE) covered stainless steel element reduces permeation and eliminates the need for gas purge systems. Guaranteed 100% pinhole free. OUTSTANDING PERFORMANCE: Low watt density design (10 watts/square inch, 1.5w/cm2) for long service life. CORROSION RESISTANT HEAD: Vapor resistant, flame retardant polypropylene terminal enclosure with 3-foot (.9m) flexible PVC liquid tight conduit. SAFETY FEATURES: Grounded internal metal element. Thermal protector built in. Replaceable P1 protector standard for solutions up to 180°F (82°C). Non-floating construction. CERTIFICATIONS: UL listed to U.S. and Canadian safety requirements, and CE. SIZES: 1,000 watts to 6,000 watts. VOLTAGES: 120 to 600 volts. Three phase standard, single phase available. OPTIONS AVAILABLE (consult factory): Replaceable thermal protectors: P4: for solutions from 180°F (82°C) to 230°F (110°C). Resettable thermal protectors: P2: bi-metal switch for solutions up to 180°F (82°C). P8: type-J thermocouple for solutions from 190°F (88°C) to 210°F (99°C). P3: type-J thermocouple for solutions from 210°F (99°C) to 250°F (121°C). Longer vertical lengths (cold zones). Polypropylene guards: recommended for applications up to 180°F (82°C), sold separately. Fluoropolymer (PTFE) guards: recommended for chromic acid or solutions over 180°F (82°C), sold separately. Special configurations. Longer wire and conduit lengths. Lower watt densities for highly viscous solutions and technical acids. Temperature and level controls sized to match the heater.

    • The Revolutionary Watt-Flex® Split-Sheath Cartridge Heater maximizes heat transfer, reduces maintenance costs, and reduces the cost of process heating. Hot Tip or Cool Tip Option. Watt-Flex Cartridge Heaters run more efficiently, use less power and last up to 5 times longer than conventional cartridge heaters.

    • Mica insulated band heaters are available in one or two piece construction and a variety of diameters and widths. One piece band heaters are manufactured with inside diameters from 1 to 31/2 inches. Two piece band heaters are available in diameters from 4 to 111/2 inches. Electrical connections are made through post terminals or insulated and stainless steel overbraided leads. Each half of the two piece band heaters are rated 120 Volts, and are wired in parallel for 120 Volt operation, or in series for 240 Volt operation. Available options include different dimensions and terminals, special wattage or voltage ratings, flexible conduit and holes or cutouts. Two, or more sections can be manufactured to fit larger diameters.

    • Process Air Heaters are your solution for heating forced air in industrial systems efficiently and economically. Our reputation has been built on custom designed heaters where we control the complete design and manufacturing process. This includes the manufacture of heating elements; complex metal framing; control enclosures and electronic controls.

    • Flexible heaters provide outstanding performance in applications up to 450°F under a variety of operating conditions. Properly applied silicone rubber heater life routinely exceeds 10 years. Silicone rubber has a high dielectric strength and is flame retardant and non-toxic. Design versatility permits special heat profiles allowing zones of higher or lower heat concentration as needed. Their flexible construction makes them very easy to install on a variety of surfaces. Silicone Rubber Heaters can be mounted to flat or curved surfaces. They are not affected by vibration, flexing or repeated mechanical shock.

    • Storing materials in drums and barrels can be problematic for all but the most shelf-stable products. Foods, chemicals, spray foam, epoxies, resins, and other industrial materials often have stringent temperature-range storage requirements. It’s important to store these chemicals at optimal temperatures. Effective drum and barrel heaters eliminate waste and lower costs that arise from damaged materials caused by improper storage. If these fragile materials spend time outside of the ideal temperature zone, the longevity can be drastically reduced, which results in and wasted product. This inflates costs and strains budgets.

    • Mica strip heaters are only thick and .156" ideal for plate heating applications. Marathon strip heaters will operate up 900° F or to 1200° F with optional stainless steel sheath.This thin, low mass construction provides fast heat up times.

    • In applications where tubular heaters are exposed to forced convection, placing fins around tubular heaters increases their surface area and thus improves their heat transferring capacity. Finned tubular heaters, compared to regular tubular heaters, run at lower surface temperatures for the same watt densities when placed in identical air streams. Despite their advantages, finned tubular heaters are not recommended for applications where outlet air temperatures exceed 600°F.

    • When highly focused heat is required, and a very low profile is imperative, coil heaters are the best cost-effective option. Coil heaters may be used to concentrate the heat on specific segments, or the coil may be spread to equalize the temperature across the object to be heated. Marathon Viper Coil Heater Standard Features: Flexible Teflon lead wire, available with or without internal thermocouple, 1/8" x 1/8" element cross section, Ground Wire, 36" Stainless steel braid over leads.

    • Used to pre-heat liquids in drums or pails to make them less viscous and more flowable. They are suitable heat sources when heat is required to handle liquids during pouring, dipping, coating or mixing operations. These heaters are made to brace a drum externally and they are easily installed and removed when needed. These heaters are metal sheathed, mica insulated heaters made for tough industrial applications. These heaters are fiberglass reinforced multilayer silicone rubber heaters that are flexible but rugged and durable. These heaters provide controlled heat through special thermostats.

    • These heaters are used to pre-heat liquids in drums or pails to make them less viscous and more flowable. They are suitable heat sources when heat is required to handle liquids during pouring, dipping, coating or mixing operations. These heaters are made to brace a drum externally and they are easily installed and removed when needed. MEGADRUM heaters are metal sheathed, mica insulated heaters made for tough industrial applications. These heaters are fiberglass reinforced multilayer silicone rubber heaters that are flexible but rugged and durable. These heaters provide controlled heat through special thermostats.

    • The INDEECO TRIAD® unit heater is the perfect solution to the problem of heating people or equipment in non-hazardous environments where moisture and corrosion exist. Advantages of the TRIAD® include: Built-in Controls: All necessary safety and temperature controls are included in a single package. Components and motor are factory-wired to a single terminal block for field wiring, eliminating the chance for field error and reducing installation costs, Single Point Electrical Hook-up: Heater, fan motor and controls are all connected to the same branch circuit, Corrosion Resistant: Stainless steel construction, powder-coated aluminum fan blade and nonmetallic NEMA 4X terminal enclosure resist corrosion found in sewage treatment plants, swimming pool areas, car washes, paper mills and marine installations, Washable: This watertight construction can be hosed down without disconnecting the heater, which makes it ideal for coal handling areas, steel mills, foundries, ships, wood finishing plants, cement, sand, grain and food processing facilities.

General Info

  • Immersion Heaters are designed for direct immersion in liquids such as water, oils, solvents and process solutions, molten materials as well as air and gases. The different types of immersion heaters are screw plug immersion heaters, flanged immersion heaters, over the side immersion heaters, pipe insert immersion heaters and more. Please call (717) 630-2222 with any specifications, part numbers, model numbers, and other information such as thread size, material being heated, wattage, voltage, etc...and we will be happy to design a heater to match your needs.

  • Cartridge Heaters are used for heating metal parts in liquid heating applications. They are inserted into drilled holes to heat metal parts or small spaces. They are used in the extrusion process as well as in the jaws of packaging machines for form, fill, and seal. Please call (717) 630-2222 with any specifications, part numbers, model numbers, and other information such as wattage, voltage, heater diameter and length and lead type and length, etc...and we will be happy to design a heater to match your needs.

  • Band Heaters are designed to apply heat by conduction to cylindrical surfaces. Typical applications for barrel type band heaters include heating of barrels of plastic injection molders and extruders, heat treating large diameter pipe sections, heating kettles and fluidized beds. Nozzle heaters are smaller in diameter than band heaters and are used to heat smooth steel nozzles. Different types of band heaters include MICA band heaters, ceramic band heaters, and mineral insulated band heaters. Please call (717) 630-2222 with any specifications, part numbers, model numbers, and other information such as wattage, voltage, heater width, Internal diameter, lead type, etc...and we will be happy to design a heater to match your needs.

  • Process Air Heaters are installed in plenums, ducts or pipes to heat forced air in industrial equipment and systems. A wide variety of heater designs and sizes are available to provide outlet air temperatures up to 1200° F. The air can be either recirculated or fresh. Recirculated air is used to reduce power consumption and heater size. Fresh air is used when ventilation of the process is necessary. Process air heaters are installed in ovens, furnaces, autoclaves, dryers, conveyor systems, pressure vessels, and other equipment to supply the precise amount of clean heat.

  • Silicone Rubber Heaters are thin, lightweight and flexible, yet rugged heaters that can be used for many applications including freeze protection and condensation prevention for many types of instrumentation and equipment, medical equipment such as blood analyzers and test tube heaters, computer peripherals such as laser printers, curing of plastic laminates, photo processing equipment and semiconductor processing equipment. They can be mounted with pressure sensitive adhesive, mechanical fasteners, field applied adhesive, silicone contact cement, etc... Please call (717) 630-2222 with any specifications, part numbers, model numbers, and other information such as wattage, voltage, heater length and width and lead type, with or without thermostat, lock up type, with or without adhesive, etc...and we will be happy to design a heater to match your needs.

  • Blanket Heaters are low watt density electrical resistance heaters that are designed for freeze protection as well as process temperature control applications. Optional pressure sensitive adhesive makes installation easy. Heat from the blanket itself cures the silicone adhesive, creating a permanent bond. Applications include storage tanks, conveyors, water and feed troughs, dust collectors, tanks, trucks process vats, dip tanks, and melt pots. Please call (717) 630-2222 with any specifications, part numbers, model numbers, and other information such as wattage, voltage, heater length and width and lead type, with or without thermostat, lock up type, with or without adhesive, etc...and we will be happy to design a heater to match your needs.

  • Strip Heaters are economical heat sources, suitable for providing heat to flat surfaces. In order to avoid thermal expansion issues that detach mica strip heaters from the surfaces that they are applied to, strip heaters can be made to include several mounting holes or pressure plates that provide rigidity and improve heat transfer uniformity as well.Mica insulated strip heaters are available in many electrical termination styles, and within certain design limitations can accommodate holes and cut-outs. Industrial applications include packaging and sealing machines, food tables and warming equipment, plastic extruders, blow molding machines, ovens, hotplates, incubators, and more. Please call (717) 630-2222 with any specifications, part numbers, model numbers, and other information such as wattage, voltage, heater length and width and lead type, holes, etc...and we will be happy to design a heater to match your needs.

  • Finned Tubular heaters-In applications where tubular heaters are exposed to forced convection, placing fins around tubular heaters increases their surface area and thus improves their heat transferring capacity. Finned tubular heaters, compared to regular tubular heaters, run at lower surface temperatures for the same watt densities when placed in identical air streams. Graph1 compares watt density, outlet air temperature, and the speed of air flow for regular and finned tubular heaters respectively. Despite their advantages, finned tubular heaters are not recommended for applications where outlet air temperatures exceed 600°F. Please call (717) 630-2222 with any specifications, part numbers, model numbers, and other information such as wattage, voltage, heater length and width and lead type, etc...and we will be happy to design a heater to match your needs.

  • Coil and Cable Heaters are high performance mini tubular heaters that have small rectangular, square or round cross sections that are flexible and can acquire different shapes and configurations. The sheath material of standard cable heaters are stainless 304 and their heating core is coiled or straight solid Nickel Chrome wire. Cable heaters can transmit up to 35 W/in2 heating capacity and can attain up to 15000F surface temperature. Cable heaters could be coiled, to form coil heaters that are ideal whenever a large amount of heat is required in a confined space. Coil heaters have many applications but are mostly utilized as powerful heating cells inside hot runner nozzles in plastic injection molding. Coil and cable heaters can accommodate "J" type or "K" type thermocouple sensors that could be placed internally at the tip or the middle of a heater. They can be made as well to have profiled or distributed wattage configuration. The fine electrical terminals and thermocouple wires are attached to power and thermocouple leads inside a transition adapter which has a larger diameter than the actual heater’s cross-sectional diameter. Although coil heaters and cable heaters are fully annealed and can acquire any shape, they should be formed to a final shape in a single attempt. Forming and bending operations harden the outside stainless shell of a heater, and re-annealing might become necessary if changing the form is required. Please call (717) 630-2222 with any specifications, part numbers, model numbers, and other information such as wattage, voltage, heater diameter and length and lead type, etc...and we will be happy to design a heater to match your needs.

  • Silicone drum heaters are made of layers of fiberglass reinforced silicone rubber sheets. When these sheets are vulcanized and bonded under heat and pressure, they form a material that can withstand industrial rough usage, and is highly flexible, durable and tough. Prior to vulcanization, the electrical resistance wire web and its protective metallic grid (which acts as an electrical ground) are carefully placed between the silicone layers. Silicone drum heaters are resistant to most chemicals, fungus and moisture, and can be easily cleaned. Please call (717) 630-2222 with any specifications, part numbers, model numbers, and other information such as wattage, voltage, heater length and width and lead type, with or without thermostat, lock up type, with or without adhesive, etc...and we will be happy to design a heater to match your needs.

  • Mica drum heaters have a rugged construction, made to withstand harsh industrial environments. Available options include a latch and trunion fastener, an insulating jacket, and a bulb and capillary adjustable thermostat Please call (717) 630-2222 with any specifications, part numbers, model numbers, and other information such as wattage, voltage, with or without thermostat, lock up type, etc...and we will be happy to design a heater to match your needs.

  • Adding a fan to an electric air heater creates artificial air movement. This air movement allows for a more compact heater than the convection heater since rapidly moving air removes the heat from the heater surface more quickly. The forced air heater forces air over very long distances and is usually the choice for heating larger areas.