Radiant Heaters
The RAYMAX® Radiant Heater Line, allows solving virtually any radiant heat application. Performance capabilities cover a wide range for operating temperature, radiated watt density, contamination and shock resistance.
| Heating Element Material | Maximum Radiated Watt Density | Maximum Operating Temperature |
| Incoloy® Tubular | 25 W/in² (3.9 W/cm²) | 1600 °F (870 °C) |
| Molded Ceramic Fiber | 30 W/in² (4.7 W/cm²) | 2000 °F (1095 °C) |
| Stainless Steel Emitter Strip | 30 W/in² (4.7 W/cm²) | 1300 °F (700 °C) |
| Quartz Tube | 45 W/in² (7.0 W/cm²) | 1600 °F (870 °C) |
Applications:
- Thermoforming
- Food Warming Equipment
- Paint & Epoxy Curing
- Heat Treating
- Furnaces & Ovens
- Tempering & Annealing Processes
RAYMAX® 1010
The RAYMAX® 1010, designed to resist contamination, is ideal for use in screen printing, food warming and other low heat applications. The heaters "sealed face" keeps contaminants away from the heating element, and this metal surface can be easily wiped or brushed clean whenever needed.
The rugged all-metal construction results in a shockproof, shatterproof heater that is durable and long lasting. No fragile glass, ceramic or fiber is used.
Performance Capabilities:
- Maximum Face Temperature of 1000 °F (540 °C)
- Maximum Watt Density of 10 W/in (1.5 W/cm)
- Maximum of 50 Amps
Features:
- Uniform full surface heat source provides better, more even heat.
- No reflectors to clean or replace.
- Accurate and responsive face temperature sensing options are available.
- Convenient ready-to-use package makes installation easier.
- Backside insulation is one inch thick, resulting in better heating efficiency.
- Totally sealed version available, suitable for hose down applications.
- UL® (Underwriter's Laboratories, Inc.) component recognized versions are available.
RAYMAX® 1120
The RAYMAX® 1120 is a lightweight, yet sturdy and durable radiant heater panel. The emitter sheath is stainless steel with a black coating that makes it a highly efficient radiating surface. In addition, the heaters low mass allows rapid start-up and fast response to controls.
The patented RAYMAX® heater features one inch (25 mm) wide emitter strips that are individually replaceable for lower maintenance costs. Weighing only 5.5 lbs/ft (26.8 kg/m), the heater is easy to mount.
Performance Capabilities:
- Maximum Face Temperature of 1100 °F (595 °C)
- Maximum Watt Density of 20 W/in (3 W/cm)
Features:
- Uniform full surface heat source provides better, more even heat.
- Replaceable emitters reduce your costs.
- High temperature mica electrically insulates nickel chromium resistance wire, permitting longer heater life.
- High emissivity coating on emitter strips improves radiant heating efficiency.
- Thermal insulation, one inch thick, backs the emitter strips to reduce backside losses.
- Special requirements are easily met with custom sizes and ratings.
- Next day shipment is available on stock sizes.
RAYMAX® 1220 and 2030
The RAYMAX® 1220 and 2030, easy to install and capable of high surface temperatures, are ideal for many process heating applications requiring "hot face" temperatures above 1000 °F (540 °C).
Each unit consists of a ceramic fiber heater mounted in a 2.5 inch (64 mm) deep sheet metal case that provides thermal insulation. The case includes post terminals for electrical connections and provides a mounting system that can be used with virtually any flat ceramic fiber unit, whether it is a stock, standard or custom size.
Since any of the flat unit heating element configurations can be used, exposed sinuated, embedded coil or foil elements, watt density and temperature capabilities can be tailored to your specific radiant application.
Special "hot face" heating patterns can be designed specifically for your application using an etched foil RAYMAX® 1220.
Performance Capabilities:
- RAYMAX® 1220: Temperatures up to 1200 °F (650 °C); Watt Densities up to 20 W/in (3 W/cm) (uses an etched foil element)
- RAYMAX® 2030: Temperatures up to 2000 °F (1095 °C); Watt Densities up to 30 W/in (4.7 W/cm) (uses sinuated or coil elements)
Features:
- Lightweight, low mass design allows fast response to controls.
- High efficiency results from high degree of self insulation with 2.5 inch (64 mm) thick mounting case.
- Thermocouple mounting clamp makes process system control easier.
- Aluminized steel case can handle temperatures up to 1100 °F (595 °C). Other case materials are available, depending on the expected exposure of the case to other operating conditions.
- Adaptable with any stock or standard sized flat ceramic fiber units.
RAYMAX® 1330
The RAYMAX® 1330 is the only radiant heater that features specially insulated heater emitter strips for higher performance. Watlow developed a unique compacted mineral insulation to electrically insulate the element wire, with a result of superior heat transfer and higher operating capabilities.
The RAYMAX® 1330 will last longer, because of its rugged stainless steel construction. This heater features a high emissivity black coating and a uniform, full surface heat source for better efficiency.
Performance Capabilities:
- Maximum Face Temperature of 1300 °F (700 °C)
- Maximum Watt Density of 30 W/in (4.7 W/cm)
- Typical Peak Energy Wavelength of 3-3.6 microns
Features:
- Field replaceable emitter strips allow you to avoid the cost of buying a whole new radiant heater later on.
- No reflectors to clean or replace.
- No fragile glass or ceramic elements to worry about.
- Rugged metal construction protects heater from contaminants.
- Backside insulation is one inch (25 mm) thick, resulting in better heating efficiency.
- Accurate and responsive face temperature sensing options are available.
RAYMAX® 1525
Watlow's RAYMAX® 1525 is a rugged radiant heater with a unique design that allows quick removal and replacement of the element and reflectors. Instead of dismantling the heater, the parts are simply removed from the front. Replacing dirty reflectors often can improve heating efficiency by up to 30 percent.
The RAYMAX® 1525 is available with either a fast responding quartz element or an Incoloy® sheathed WATROD tubular element. Both are supported by stainless steel hardware in an extruded aluminum housing.
All stock units come with 1 5/6 inch long and 3/8 inch 16 thread mounting bolts that slide along the heaters length to accommodate mounting considerations.
Performance Capabilities:
- Element Temperatures up to 1600 °F (870 °C)
- Watt Densities Measured Across the Reflector Area up to 25 W/in (3.9 W/cm)
Features:
- Fast and easy replacement of the tubular element and reflectors for quick servicing.
- Polished aluminum reflector efficiently directs heat to the work.
- Variety of element styles: single or dual element, hair-pin, liquid tight housing and quartz element.
- Optional single end wiring, available on most units, simplifies installation.
- Assembly stock availability provides quick three-day shipment from order receipt.
RAYMAX® 1626
Watlow's RAYMAX® 1626 quartz tube panel is a fast responding and very efficient source of radiant thermal energy. With heat-up and cool-down capabilities of 40 to 50 seconds, the quartz heater is ideal for use in operations where frequent line stoppages are anticipated or immediate heat-up and cool-down is necessary up to 27 inches wide in three inch increments and 70 inches long.
Performance Capabilities:
- Element Temperatures up to 1700 °F (930 °C)
- Watt Densities Measured Across the Reflector Area up to 26 W/in (4 W/cm)
Features:
- Quartz tubes and reflectors are easy to replace from front of heater for less downtime.
- Polished parabolic aluminum reflectors direct radiant energy from the back for efficient heating.
- Little residual heat to reduce possibility of product damage during line stoppage.
- Fast heat-up, cool-down allows heater turn off during gaps in production for more energy savings.
Infrared Line Heaters
Watlow's new Infrared Line Heaters produces a focused line of high intensity infrared energy as narrow as an inch wide. The heater is efficient because it focuses more energy in a smaller area and reduces heating of adjacent product and machine components.
The unit comes equipped with a Watlow quartz tube heater for fast heat-up and cool-down. The elliptically shaped polished aluminum reflector directs the radiant energy onto a line about one inch in front of the heater.
The reflector is supported in a stainless steel frame that provides lightweight strength and maximum reflector cooling. An integral return wire conduit permits wiring form one end. The quartz tube and reflector are easy to replace. Quartz tube must be operated horizontally.
Features:
- Focused line of high intensity infrared energy provides higher watt densities for higher product temperatures and faster processing times.
- Optional reflector cap completes the ellipse directing energy at the product from a full 360 degrees. The result is even greater energy efficiency and faster heating.
- Quartz tube heating element and reflector are easy to replace.
- Protects product and machine components by only heating the desired area.
- Saves energy by only heating the area that needs heating. In many cases the energy savings can pay for the heater in less than a year.
Quartz
The Watlow Quartz tube radiant heater provides medium wave infrared energy and fast heat-up and cool-down. With element temperatures around 1700 °F (930 °C) the heater produces infrared radiation with a peak energy wavelength of 2.5 microns. Lower operating temperatures produce longer wavelengths. The majority of the energy is transmitted through the translucent quartz tube without being absorbed.
Most designs reach full output in 30 to 60 seconds and typically cool-down to 50 percent output in under 15 seconds. The quartz tube heater is ideal for applications where frequent line stoppages are anticipated or quick heat-up or cool-down is necessary. Heaters can be turned off between production runs to save energy. Unique control schemes are possible that adjust the wattage output of the heaters during the heating cycle.
No process contamination occurs with this clean thermal energy source.
Performance Capabilities:
- Element Temperatures up to 1700 °F (930 °C)
- Tube Watt Densities up to 45 W/in (6.2 W/cm)
Features:
- Ceramic end caps, bonded to the quartz tubing ends, provide a rigid support for terminations. RTV bonding also available.
- Heaters usually do not need to be retracted during line stoppages.
- No objectionable glare is created due to low emission in the visible spectrum.
- Termination styles are available for virtually every enclosure on the market.
- Fast delivery on all standard replacement elements means less downtime waiting for parts.
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