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MULTICELL™ INSERTION HEATERS
EFFICIENT HEAT DISSIPATION AND LONG LIFE TO MEET YOUR HIGHEST DEMANDS
The advanced design of the MULTICELL heater from Watlow offers three major advantages over other insertion heaters: extreme process temperature capability, independent zone control for precise temperature uniformity and loose fit design for easy insertion and removal.
- Multiple, independently controllable zones for process temperature uniformity
- Radiant design of heater permits easy removal and replacement with minimal downtime
- Oxidized sheath improves heater performance as oxidation increases
- Quick disconnect plug and jack enables quick replacement of individual elements while maintaining operating temperature
- Special bending capabilities solves unusual machinery needs
INDIVIDUALLY METAL-SHEATHED COILS SWAGED INTO A LARGER, HIGH-TEMPERATURE ALLOY OUTER SHEATH
Provides maximum protection against element burnout through the outer sheathFLEXIBLE LEADS UP TO 842°F (450°C)
Protects termination from high-temperature environmentMULTIPLE, INDEPENDENTLY CONTROLLABLE ZONES
Allows process temperature uniformity not possible with any other single-sheathed heaterRADIANT DESIGN OF HEATER
Permits easy removal and replacement with minimal down time since it will not bind or seize in the holeQUICK DISCONNECT PLUG AND JACK
Permits fast replacement of individual elements while the press stays at operating temperatureSPECIAL BENDING CAPABILITIES
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METRIC FIREROD METRIC CARTRIDGE HEATERS
CARTRIDGE HEATER BUILT TO MEET THE SPECIFICATIONS OF THE GLOBAL MARKET
The Watlow FIREROD not only sets the industry standard for cartridge heaters, but continues to make improvements in construction and design. Among those improvements is the FIREROD metric cartridge heater, a variation of the FIREROD cartridge heater built to meet the exact specifications of the global market.
Like its counterpart, the metric FIREROD consistently outperforms other cartridge heaters with its design solutions such as its exclusive resistance wire winding and swaging process. These processes bring the resistance wire closer to the sheath and compacts the MgO insulation to maximize heat transfer. The end result is longer service life and better efficiency.
- Nickel chromium resistance wire ensures even, efficient distribution of heat to sheath
- Magnesium oxide insulation of specific grain and purity results in high dielectric strength and faster heat-up
- Alloy 800 sheath resists oxidation and corrosion from many chemicals, heat and atmospheres
- Minimal spacing between element wire and sheath results in lower internal temperatures and accommodates design with fewer or smaller heaters
- UL® and CSA approved flexible stranded wires with lead insulation rated to temperatures of 250°C (480°F)
NICKEL-CHROMIUM RESISTANCE WIRE
Assures even and efficient distribution of heat to the sheath because the wire is precisely wound and centered in the heaterCONDUCTOR PINS
Ensures a trouble-free electrical connection because of the metallurgical bond between the conductor pins and resistance wireMAGNESIUM OXIDE INSULATION OF SPECIFIC GRAIN AND PURITY
Results in high dielectric strength and contributes to faster heat-upALLOY 800 SHEATH
Resists oxidation and corrosion from many chemicals, heat or atmospheresUL® AND CSA APPROVED FLEXIBLE STRANDED WIRES
Insulates the wires to temperatures of 250°C (480°F)MINIMAL SPACING BETWEEN THE ELEMENT WIRE AND SHEATH
Results in lower internal temperatures and accommodates design with fewer or smaller heaters
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HIGH-TEMPERATURE FIREROD® CARTRIDGE HEATERS
SWAGED CARTRIDGE HEATER IDEAL FOR HIGH-TEMPERATURE APPLICATIONS
The Watlow HT FIREROD cartridge heater is especially designed for high-temperature platen applications up to 1600°F (871°C). The HT FIREROD high temperature cartridge heater utilizes the same industry leading design principles used on all of Watlow’s FIREROD products. Taking the cartridge heater one step further enables the HT FIREROD to withstand application temperatures up to 400°F (204°C) higher than standard cartridge heaters.
There are certain differences in the HT FIREROD design which are important in high temperature applications:
-HT FIREROD cartridge heaters are specially constructed with an end seal that is virtually airtight to reduce the effects of resistance wire oxidation
-The high-temperature sheath is treated to improve its emissivity for better heat transfer- High-temperature seal results in longer heater life
- Alloy 800 sheath transfers heat more efficiently
- High emissivity sheath provides better heat transfer and longer heater life
HIGH-TEMPERATURE SEAL
Reduces exposure to the atmosphere which minimizes oxidation of the winding wires resulting in longer life of the element; note: first 2 in. (51 mm) must be outside the platen in free airALLOY 800 SHEATH
Transfers heat more efficientlyHIGH EMISSIVITY SHEATH
Provides better heat transfer and longer life
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FIREROD® CARTRIDGE HEATERS
FIREROD CARTRIDGE HEATERS ARE THE PREMIER CHOICE IN SWAGED CARTRIDGE HEATING
The FIREROD cartridge heater revolutionized the heating element industry in 1954 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.
FIREROD 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 FIREROD heater provides superior heat transfer, uniform temperatures, resistance to oxidation and corrosion and a long life even at high temperatures.
FIREROD offers many delivery programs to meet your needs.
- Nickel chromium resistance wire ensures even, efficient distribution of heat to sheath
- Magnesium oxide insulation of specific grain and purity results in high dielectric strength and faster heat-up
- Alloy 800 sheath resists oxidation and corrosion from many chemicals, heat and atmospheres
- Minimal spacing between element wire and sheath results in lower internal temperatures and accommodates design with fewer or smaller heaters
- UL® and CSA approved flexible stranded wires with lead insulation rated to temperatures of 480°F (250°C)
PATENTED LEAD ADAPTER (LA) METHOD
Allows same day shipment on more than 150,000 configurations of stock FIREROD heaters and lead combinationsINTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO) 9001 CERTIFIED
Provides confidence that quality and reliability expectations are metCONDUCTOR PINS
Provides a metallurgical bond to the resistance wire and ensures trouble-free electrical connection
Material Maximum Operating TemperaturesF°C°Maximum Watt DensitiesW/in2W/cm2Alloy 800 1400 760 400 62 Stainless Steel 1000 538 400 62 -
1/8-INCH FIREROD® CARTRIDGE HEATERS
The Watlow FIREROD not only set the industry standard for cartridge heaters, it continues to make improvements in construction and design. Among these innovations is the 1/8-inch FIREROD. This miniature cartridge heater with swaged construction features high watt density, is capable of high operating temperature and provides long life in applications where it is essential to have a very small size. Like all of Watlow’s other FIRERODs, the 1/8-inch contains a resistance wire closer to the sheath and compacted MgO insulation, which maximizes heat transfer.
- Miniature size
- Low mass
- Swaged construction
- Numerous lead options available
- Outlasts competitors in life testing
MINIATURE SIZE
Delivers high performance in a small package and supports a wide variety of application requirementsLOW MASS
Offers better heat transfer, quicker response time and increased heater life due to lower internal temperatureSWAGED CONSTRUCTION
Higher watt density and temperature capabilities, maximum heat transfer and increased safety due to low leakageOPTIONAL INTERNAL THERMOCOUPLE
Reduces system footprint and measures temperature at point of applicationMANUFACTURED TO THE HIGHEST QUALITY STANDARDS
Backed by 50 years of industry expertise and outlasts competitors in life testingNUMEROUS LEAD OPTIONS AVAILABLE
Maximum flexibility and performance