Heaters

Heaters

 

Precision Engineering – Akinsun technical engineering is amongst the best. We design with quality in mind and exceed what is expected.

Introduction to Quartz Heaters
  1. Quartz Sheath
    Shields radiating coil from ambient loss due to external drafts. Quartz tube provides the highest infrared transmission capability of any material available. Quartz tubes are more durable than tungsten filament lamps or sealed quartz tubes and has a life expectancy up to several years. Quartz heater gives out very low emission in the visible spectrum, hence fewer glares.
  2. Terminals
    Most standard is the 10-32 stainless steel screw terminal. Also available with various other terminations like lead wire, quick disconnects type etc. (Refer to Terminations and Style).
  3. Ceramic Caps
    Specially designed insulating ventilated caps facilitate breathing of the heater during heating and cooling. Ceramic caps also act like a support for the heater. Varieties of caps are available for different terminations.
  4. Cement
    A high temperature, low expansion cement is used for bonding the quartz and the ceramic caps. Quartz heaters are also manufactured without cement where alternate method of supporting is used.
  5. Coil
    Optimum design of the coil provides uniform heat, a clear red color at full design voltage and a infrared medium wave length at energy peak of 2.30 to 3.00 microns. Fast acting design is also available when needed. Coil is designed to be used in horizontal position only.
Quartz Heater Specifications

Dimensional Data on C, M, N, P, S, and V Style Heaters

DIAMETER NOMINAL QUARTZ O.D. IN. 3/8 1/2 5/8
  ACTUAL QUARTZ O.D. IN. .394 .502 .630
  CERAMIC CAP O.D. .690 .875 .875
SCREW TERMINALS THREAD SIZE AND LENGTH 6-32x1/2 10-32X1/2 10-32X1/2
MAXIMUM LENGTH   48" 60" 72"
MINIMUM LENGTH   10� 10� 10�
Resistance Tolerance Nema Standard +10%, -5%
Wattage Tolerance Nema Standard +5%, -10%
MAXIMUM: VOLTS AMPERAGE WATT DENSITY
480 20 40
Technical Information about Quartz Heaters
  • Efficient and Instantaneous Heat
  • Fast Heat Response and Cooling
  • Conservation of Energy
  • Functional Design
  • High Operating Temperatures
Features

All hot materials radiate energy. Energy is transferred in line of sight by electromagnetic waves, emitted by the source (hot surface) and absorbed by the sink, i.e. the cooler surface. The amount of radiant energy transferred depends on temperature, emissivity and the effective surface area of the source and sink.

Heaters, which utilize radiant energy to transfer heat, are commonly known as infrared radiant heaters. Radiant energy is absorbed into the surface layer of material being heated and then dispersed through the material by conduction. Before you dry, heat, bake or cure any product with any heat source check Akinsun quartz heater features.

Fast Response and Efficient Heat

Standard quartz heaters have a response time of 80% within 15 seconds and 100% within 30 seconds � with almost the same cooling time. These heaters are quiet, cool and emit no significant glare. Infrared heat waves are absorbed by both light and dark color surfaces at the same speed. Special heaters can be designed for response times quicker than 15 seconds.

APPLICATIONS:
  • Shrink Packaging
  • Screen Printing
  • Laminating
  • Coating
  • Preheating
  • Drying
  • Sealing
  • Thawing
  • Food Warming
  • Plastic Forming
  • Vulcanizing / Curing Rubber
  • Sterilization
  • Thermoforming
  • Electrostatic Copy Equipment
  • X-Ray Equipment
  • Space Heaters
  • Drying Textiles
  • Drying Lacquers And Paint
Infrared Radiant Pannels – Type RP
Designed For Maximum Heat Intensity, High Reflectance.

Quartz radiant panels provide more heat output per KW. They not only conserve energy, but also reduce costs considerably.

Infrared Radian Pannels

Reflectors have a polished mirror finish for optimum reflectance, and the parabolic design ensures greater heat intensity.

Varied uses range from installation for small warming applications, to comfort heating of large open areas. Radiant panels are constructed to allow easy and quick replacement of elements. The panels are fully insulated and completely wired to a rear-mounted junction box. Reflectors are easily removed for cleaning.

Applications

METALS
Weld preheating, shrink fitting, stress relieving, baking or curing finishes.

PLASTICS
Laminating, Embossing, Thermoforming, Port forming, Film shrinking, around palletized loads. Ink and paint drying.

PAPER AND PAPERBOARD
Booster preheating, curing latex and resign, Preheating, Laminating, Drying adhesives and ink.

TEXTILES
Silk screen drying, Resin finishing, Booster preheating, Controlling dye migration, Fiber bounding.

OPTIONS
Power connections can be provided at each end or one end. Please specify.

Features

Resistance To Thermal Shock
Quartz heaters are highly resistant to thermal shock but are subject to mechanical breakage. Careful handling should minimize this problem.

Elevated Temperatures
Quartz heaters can be operated at a higher temperature than metal sheathed tubular heater thereby attaining higher speeds in applications.

Fast Response & Efficient Heat
Make quartz heaters suitable for applications calling for fast heat up and cool down.

Polished Aluminum Or Stainless Steel Reflector
Available In: 120, 208, 240 and 480V.

Single and Double Fixed Elements

AKINSUN infrared heaters are designed primarily as process heaters. The heating element is metal sheathed which can be easily installed and operated in any position, although a quartz heater or quartz lamp could be used for faster response, but it can be only operated in horizontal position.

Applications
  • Space Heating
  • Freeze Protection
  • Latex and Resin Curing
  • Ink Drying
  • Warming Equipment
  • Food Processing
  • Fast Moving Web
  • Paper and Paperboard Applications
Features
  • Heavy Duty Extrusions Designed for continuous operation
  • High Shock Resistance Both pysical and thermal
  • Easy Installation
  • Wide Range of Sizes and Heat
  • Polished Aluminum Reflector
  • Custom Made Sizes and Ratings Available
  • Available in: 120, 208, 240, and 480V
Options:

Power connections can be provided at each end or at just one end. Please specify.

Ceramic Infrared Emitter Heaters

Ceramic infrared heaters are capable of almost endless variety of combinations to produce heater patterns specifically suited to customer specifications.

When infrared energy strikes an object, it is absorbed, transmitted, or reflected from the surface. An object that absorbs 100% of the infrared energy produced is known as a blackbody. A blackbody has an emissivity of 1.0. An object with an emissivity of 0.0 is a perfect reflector and does not absorb radiant heat. Ceramic heaters have an emissivity of 0.9. The infrared ceramic heating elements is made of a high temperature resistance nickel chrome alloy. This element is fired inside the ceramic material. This process and the glazed surface of the ceramic radiator provide extensive protection for the metallic heating elements, preventing both oxidation and corrosion. By knowing the absorption characteristics of the material being processed and by selecting an infrared emitter with similar characteristics, massive savings on energy can be achieved.

Applications
  • Curing or drying latex coatings. Yarn selling and drying finished or washed fabrics.
  • Paper webs and impregnated coatings
  • Speed drying of lacquered plastic coated, painted and gummed paper
  • Softening plastic for thermoforming machine
  • Pre-heating sheet in vacuum molding machines
  • Pre-heating sheet in packing machines, vulcanizing from rubber section
  • Drying or baking lacquers and finishes sprayed and dipped powder coatings
  • Wood and clipboard, heating and drying bonded, painted and plastic coated components.
  • Glass to metal sealing and glass bending
  • Solder reflow/wave ovens
  • P.T.F.E. coatings car finishes and under seals
  • Drying of unprocessed and printed wallpaper
  • Baking and browning small bakery products
  • Keeping food warm
  • Drying raw tobacco
Mica Insulated Band Heaters – Hotband
INTRODUCTION

AKINSUN quality Hotbandä heaters are specifically designed to apply heat by conduction to cylindrical surfaces. The performance and heater life depends upon its ability to transfer heat from the resistance windings to the cylinder quickly and evenly.

Application

Band heaters are extensively used on smooth steel nozzles, barrels of plastic molding, and extruding machines, on pipes and other cylindrical surfaces. Maximum sheath temperature is 750� degrees Fahrenheit.

Features

  1. Clamping
    A low-expansion stainless steel clamping band provides uniform fit (eliminating air gaps) and assures maximum heat distribution. This also means the hotter the job, the tighter the fit.
  2. Sheath
    Corrosion resistant specially treated steel sheath has good conductivity and high emissivity characteristics to efficiently transmit heat from the electrical winding to the cylinder.
  3. Ribbon Element
    A high quality Nickel-Chromium resistor wire is evenly wound on a selected high temperature mica to provide even distributed heat to the cylinder.
  4. Mica
    It has extremely high dielectric strength, low electric loss, high surface and volume resistivities, excellent thermal stability, and high shear and tensile strength. It is completely inert to most chemicals and conforms to cylinder without cracking. It is fireproof and non-flammable.
  5. Termination
    Sturdy terminal post design standard on AKINSUN mica band heaters will not break down electrically under normal torque applied during tightening connections. Post terminals (screw thread size is 10-32) are securely fastened to the windings for a positive, trouble free connection.
ONE PIECE CONSTRUCTION

Applications

3
  • Barrels and Dies of Plastic Molding Machines
  • Extruders
  • Autoclaves
  • Injection and Blow Molding

Features

  • Reliable Performance / Quick temperature
  • Heavy Duty terminals
  • Up to 12" I.D. and 12" wide
  • Variety of termination and clamping
  • Temperatures to 900� F (482� C)

Options

  • Clamping and termination style
  • Low profile clamping
  • Termination and thermocouple hole location
  • Stainless Steel Sheath
  • Custom fit designs
  • Available in: 120, 208, 240, 480V
  • In Single, dual or 3 phase

Band Heater

Ordering Information

Order Code example: B0424116C01

FRACTION

CODE

1/32

01

1/16

02

1/8

04

1/4

08

1/2

16

5/8

20

3/4

24

Ceramic Insulated Band Heaters – Redband
INTRODUCTION

AKINSUN ceramic Redbandä heaters, used for industrial processing, have one primary purpose, to heat machinery parts or materials quickly, efficiently and contribute to productivity. These ceramic band heaters are capable of generating higher temperatures essential to process today�s high temperature resins. Because of the low thermal conductivity of the ceramic fiber insulation, the external surface temperature of the ceramic band heater is approximately 400�F while running the inside surface temperature up to 1200�F.

Ceramic band heaters are manufactured in full range of standard construction variation, physical dimensions, electrical ratings and complete arrangement of screw terminals and lead terminations. These heaters are flexible and easy to install. Interconnecting ceramic bodies allow heaters to be easily opened and wrapped around the cylinder. AKINSUN heaters are designed and manufactured with materials to assure long life.

Ceramic band heaters can be custom manufactured to the size and diameter you need with all the necessary variations.

FEATURES
  1. TERMINAL BOX:
  2. A steel terminal box offers excellent protection to exposed terminals. The box has a 5/8" knock-out that will accept standard conduit or flexible armor cable connectors.

  3. SCREW TERMINALS:
  4. Screw terminals are standard on most ceramic insulated heater bands. Stainless steel screw terminals connected to solid nickel pins are designed to provide maximum amperage carrying capacity. Brackets are located 180� from the screw terminals.

  5. STAINLESS STEEL SHEATH:
  6. Stainless steel housing with serrated edges provides maximum flexibility for ease of installation. Wall thickness of the sheath is chosen to provide mechanical strength, and thermal-conductivity. Sheath material will not become brittle when subject to high heat environment.

  7. CERAMIC FIBER INSULATION:
  8. A 1/4" thick ceramic fiber insulation material is chosen for its dielectric and thermo-conducitivity characteristics. This keeps the heat on the cylinder and is not lost to the atmosphere. Specially designed mounting brackets with 1/4"-20 socket cap screws are used to securely draw the heating element assembly against the cylinder evenly and tightly across its entire width.

  9. NICKEL CHROME RESISTANCE WIRE:
  10. Wire is selected from different sizes and resistance then precision wound on machines, allowing to include the maximum amount of wire possible in each heater. This allows heater to remain cool while providing maximum heat.

  11. RADIAL LOCKUP FLANGE:
  12. Heavy-duty stainless steel flange is spot welded to outer sheath. A firm pressure extends over the width of the band to assure good lockup.

Ceramic Insulated Band Heaters

Plastics processing require high operating temperatures and fast production rates. Our ceramic band heaters are designed to meet these demands. These heaters are, in effect, high temperature electric furnaces capable of very efficient heat transfer by conduction, convection and radiation. Built in insulation minimizes unwanted temperature changes along the barrel.

Other types of band heaters are primarily conductive, requiring an intimate fit with components being heated. Grooves or other surface irregularities form voids under the bands, resulting in hot spots and pre mature heater failure. Ceramic bands are recommended here, because efficient heat transfer is not affected by irregular surfaces or loose fit. At higher watt densities they can be used in wider increments then other heaters. This means you can reduce the number of bands used and simplify wiring.

SPECIFICATIONS

MAXIMUM TEMPERATURE

1400�F

NOMINAL WATT DENSITY

20-45 W/IN�

MAXIMUM WATT DENSITY

45 W/IN�, AIR COOLED 50 W/IN�

MAXIMUM VOLTAGE.

480V (SINGLE OR TREE PHASE) ON SCREW TERMINALS

MAXIMUM VOLTAGE W/LEADS.

240 VAC

MAXIMUM AMPERAGE

LEAD WIRE TERMINATION 10 AMP (PER CIRCUIT)

MAXIMUM AMPERAGE SCREW TERMINATION

25 AMP

RESISTANCE TOLERANCE

+10%,-5%

WATTAGE TOLERANCE

+5%,-10%

INSULATION (CERAMIC FIBER BLANKET)

STANDARD THICKNESS �"

DOUBLE THICKNESS �"

TERMINALS

1/4-20 POST TERMINALS STANDARD

SHEATH MATERIAL

STAINLESS STEEL

LOCKUP

FLANGE TYPE STANDARD

MINIMUM ID: ONE PIECE

2"

MINIMUM ID: TWO PIECE

4"

MAXIMUM ID.

25 �" FOR 2 PIECE CONSTRUCTION

15" FOR 1 PIECE CONSTRUCTION

STANDARD WIDTH INCREMENT

1/2"

STANDARD GAP WHEN TIGHTENED

1/4"

THICKNESS W/�" INSULATION.

5/8"

THICKNESS W/�" INSULATION.

7/8"

Mica Strip Heaters – Hotstrip
HEAVY DUTY CONSTRUCTION FOR LONG LASTING SERVICE

AKINSUNquality strip heaters are specifically designed to apply heat by conduction to flat surfaces. The performance and heater life depends upon its ability to transfer heat from the resistance winding to the flat surface quickly and evenly.

Features
  1. Cost Effective
  2. AKINSUN dependable strip heaters are a reliable source for transferring heat at minimum of cost.

  3. Uniform Heat
  4. Our computer calculated designs insure optimum characteristics for even heat transfer and long life.

  5. Sheath
  6. Corrosion resistant steel sheath has good conductivity and high emmisitivity characteristics there by transferring maximum heat from heated electrical windings. Maximum sheath temperatures to 900� F(482� C).

  7. Mica
  8. Selected mica with high dielectric strength, low electrical loss, volume resistivity, excellent thermal stability ensures quality and longer life. 

  9. Termination
  10. Almost all terminations available on band heaters are available in strip heaters. Most standard is post terminals, which will not break down under normal torque applied during tightening connections.

  11. Mounting
  12. Provided with holes or slots for ease of mounting.

  13. Resistance Wire
  14. A high quality nickel-chromium wire is evenly wound on selected high temperature mica to provide evenly distributed heat to the flat surface.

Applications
  • Food Processing
  • Sealing Bars
  • Heating of Extrusion Dies
  • Compression Molding
  • Platen Heating
  • Packaging Equipment
  • Hot Plates
  • Kettles
  • Vulcanizing Presses
  • Incubators
  • Ovens
  • Testing Equipment
  • Blow Molding Equipment
  • Food Warming
Mica Strip Heaters

SPECIFICATIONS

NOMINAL THICKNESS:

3/16" � 1/32"

MINIMUM WIDTH:

3/4"

WATT DENSITY:

5 TO 40 WATTS PER SQ. IN.

WIDTH TOLERANCE:

� 1/32"

LENGTH TOLERANCE:

� 1/16 UP TO 24", � 1/8" 24"

SLOTS:

9/32" x 3/8" SIZE LOCATED 5/16" FROM EDGES

HOLES:

9/32" DIA. LOCATED 5/16" FROM EDGES

RESISTANCE TOLERANCE: NEMA STANDARD: +10% - 5%

WATTAGE TOLERANCE: NEMA STANDARD: +5% - 10%

Channel Strip Heaters

Ceramic insulated strip heaters offer a rugged one-piece construction. Sheath material is a seamless rectangle piece housing a helical wound resistance coil evenly strung through specially designed ceramic insulators. Strip heaters are an excellent choice where even heat over a broad surface area is desired.

Features

Channel Strip Heaters
  1. Cost Effective: AKINSUN dependable channel strip heaters are a reliable source for transferring heat at a minimum of cost.
  2. Sheath: Stainless steel alloy sheath provides the best combination of physical strength and resistance to high temperatures and corrosion.
  3. Internal Insulation: We used highest-grade magnesium oxide, which gives excellent dielectric strength as well as excellent heat transfer.
  4. Uniform Heat: Our computer calculated design insures optimum characteristics for event heat transfer and long life.
  5. Resistance Wire: Only the highest grade Nickel-Chromium resistance wire that will withstand high temperatures and watt densities is used.
  6. Mounting Tabs: Slotted mounting tabs are an integral standard feature and are capable of withstanding shock and vibration (Heaters should be clamped down securely for good heat transfer.)
Applications
  • Food Processing
  • Ovens
  • Platens
  • Molds
  • Melting
  • Baking
  • Incubators
  • Hot Plates
  • Thermoforming
  • Sealing Bars
Channel Strip Heater Specifications

NOMINAL THICKNESS

5/16"� .008"

WIDTH

1� +.000" -.010"

MOUNTING SLOT

5/16x1/2" Standard

SHEATH MATERIAL

304 Stainless Steel

SCREW TERMINAL

10-32 Thread

SHEATH TEMPERATURE

1200� F(650� C) Maximum

WORKING TEMPERATURE

850� F(455� C) Maximum

Cartridge Heaters-Redrod
INTRODUCTION

REDRODä "R" SERIES HIGH WATT DENSITY

AKINSUN High watt density cartridge heaters are manufactured to the highest industry standards using only premium materials. Our tight manufacturing controls results into uniform surface temperatures and resistance to oxidation and corrosion even at elevated temperatures. " R " series cartridge heaters are designed for higher temperatures, longer life even in the most severe, rugged and demanding applications. Their heavy duty, construction provides high dielectric strength as well as shock and vibration resistance.

Features
  1. Incoloy or Stainless Steel Sheath: Selected heavy wall tubing gives maximum heat transfer, high compaction, and is corrosion resistant.
  2. Lava Cap: With its high density or the ceramic cap locks the magnesium oxide in place, acts like an insulator between pin and sheath and also resists contamination.
  3. Leads: Flexible, non-asbestos fiberglass leads crimp connected mechanically.
  4. Swaging: Maximum swaging results in greatest cross section reduction of area, offering virtual conduction for highest watt densities.
  5. Centering: Mgo spacer precisely centers the wire wound core eliminating hot spots.

AKINSUN cartridge heaters have been in use in various applications for years. Successful application depends on proper installation of heater, operating temperatures and heater watt density.

Application of Redrodä Cartridge Heaters in Platens, Dies, and Molds
When selecting cartridge heaters for above application the following factors are checked to insure the heater will experience longest possible life and provide sufficient heat for the job.
  • Heater Watt Density
  • Proper Fit of Heater
  • Proper measures against contamination
  • Sufficient KW to heat and to compensate for heat losses
Redrodä Specifications
High Watt Density Cartridge heater
Cartridge Heaters-Redrod

 DIMENSIONAL DATA

DIAMETER

NOMINALN.

1/4

3/8

1/2

5/8

3/4

1

 

NOMINAL MM

6.00

9.52

12.70

15.87

19.05

25.40

 

ACTUAL IN.

.246

.371

.496

.621

.746

.996

 

ACTUAL MM

6.25

9.42

12.60

15.77

18.95

25.30

LENGTH

MINIMUM IN.

1

1

1

1 1/4

1 1/4

1 3/4

 

MINIMUM MM

25.40

25.40

25.40

31.75

31.75

44.45

 

MAXIMUM IN.

36

48

60

72

72

72

 

MAXIMUM MM

915

1220

1520

1830

1830

1830

DIMENSIONAL TOLERANCES

DIAMETER

INCHES

� .002

� .002

� .002

� .002

� .002

� .003

 

MM

� .051

� .051

� .051

� .051

� .051

� .076

LENGTH

UP TO 4 1/2 IN.

� 3/32

� 3/32

� 3/32

� 3/32

� 3/32

� .125

 

ABOVE 4 1/2 IN.

� 2 % OF SHEATH LENGTH

CAMBER

UP TO 12 IN.

.010 IN. PER FOOT LENGTH

 

OVER 12 IN.

.020 IN. PER FOOT LENGTH

ELECTRICAL DATA

MAXIMUM VOLTS

240

240

240

480

480

480

MAXIMUM AMPS

4.4

6.7

10.5

23

23

23

MINIMUM WATTS

1 IN.

100

65

40

35

30

---

AT 120V FOR

2 IN.

55

35

25

20

15

15

HEATER LENGTH

3 IN.

40

25

20

15

10

10

MAXIMUM

120

525

800

1160

2760

2760

2760

WATTS AT

240

1050

1600

2320

5520

5520

5520

GIVEN VOLTS

480

---

---

---

11000

11000

11000

Metric Size High Watt Density/ Specifications

Metric size Cartridge Heaters are made exactly like our Redrod series swaged

Cartridge Heaters. Using the same material and construction procedures.

DIMENSIONAL DATA

DIAMETER

NOMINAL MM

10

12

12.5

16

20

 

NOMINAL IN

.394

.472

.492

.630

.787

 

ACTUAL MM

9.93

11.90

12.42

5.92

19.91

 

ACTUAL IN

.390

.468

.488

.626

.784

LENGTH

MINIMUM MM

25.40

25.40

25.40

31.75

31.75

 

MINIMUM IN

1

1

1

1�

1�

 

MAXIMUM MM

1220

1220

1520

1830

1830

 

MAXIMUM IN

48

48

60

72

72

DIMENSIONAL TOLERANCES

DIAMETER

MM

� .051

� .051

� .051

� .051

� .051

 

INCHES

� .002

� .002

� .002

� .002

� .002

LENGTH

UP TO 115MM

� 2.4

� 2.4

� .2.4

� 2.4

� 2.4

 

ABOVE 115MM

� 2 % OF SHEATH LENGTH

CAMBER

UP TO 30 MM

0.254MM PER 300 MM LENGTH

 

OVER 30MM

0.510MM PER 300 MM LENGTH

E LECTRICAL DATA

MAXIMUM VOLTS

240

240

240

480

480

MAXIMUM AMPS

4.4

6.7

10.5

23

23

MINIMUM WATTS

25.4 MM LONG

100

65

40

35

30

AT 120V FOR

50.8 MM LONG

55

35

25

20

15

HEATER LENGTH

76.2 MM LONG

40

25

20

15

10

MAXIMUM

120

525

800

1160

2760

2760

WATTS AT

240

1050

1600

2320

5520

5520

GIVEN VOLTS

480

---

---

---

11000

11000

Metric size Cartridge Heaters are available in almost any terminations and styles as shown in

Redrod series Cartridge Heaters. Please consult factory for details.

Bolt Heaters-Durabolt™
INTRODUCTION

Bolt heaters are used to pre heat large, hollow holding bolts or studs. These heaters are used as an aid to tighten large bolts in heavy machinery, servicing of hydraulic presses, compressors, die blocks, steam or pressure vessels and other equipment. A high concentration of heat is needed to expand both allowing further tightening of the nut. As the bolt cools and contracts it results in the nut being drawn even tighter. Bolt heater is specifically designed to provide with close tolerance fits, watt densities of 100 watts per square inch. Which is almost 65% higher than standard cartridge or tubular heating elements can deliver. Bolt heaters provide quicker heat up time and minimum heat loss to the area surrounding the bolt.

Bolt Heaters-Durabolt
Features
  • Conduit box with knockouts
  • Magnesium Oxide filled and swaged
  • Optional SJO cord or post terminal
  • Insulated wooden handle
  • High Density construction
  • Ground connection in box
  • Lengths to 96" available
Applications
  • Engine Heads
  • Pressure Vessels
  • Cylinders
  • Die Blocks
  • Turbines
  • Presses
  • Large Compressors
  • Heavy Machinery
RECOMMENDED HEATER DIAMETER

HOLE DIAMETER

BOLT HEATER DIAMETER

.500

.438

.563

.438

.563

.496

.688

.621

.750

.688

.813

.781

.875

.813

1.000

.938

1.125

1.047

1.250

1.188

DIMENTIONS IN INCHES

Introduction to Tubular Heaters
TECHNICAL INFORMATION
Tubular Heaters
GENERAL INFORMATION

Akinsun�s electric line of tubular heaters is the most versatile of all heating elements. They can be used in straight or formatted configurations. Since most tubular are designed for specific applications, this portion of the catalog will serve as a guide for your particular design. Because of their flexibility in design they can be used for heating liquids, gas, radiant heaters, for casing into aluminum, bronze or iron.

CONSTRUCTION

Akinsun tubular heaters are made from the highest quality materials under carefully researched manufacturing methods. The nickel chromium resistances wire coil is precisely centered in the tube and packed with high purity magnesium oxide (Mgo). After the tube is filled with Mgo, it is compacted by rolling or swaging. This elongates the tube, thickens the wire and compresses the Mgo into a rock hard mass. This process permanently stabilizes the coil in the center of the tube where it will not shift during the forming process.

SHEATH MATERIAL

MAX. SHEATH TEMP.

MAX WATTS PER SQ. IN

RECOMMENDED APPLICATION

COPPER

350� F (165� C)

55

Water, non-corrosive liquids

STEEL

750� F (385� C)

22

Oil immersion, Cast-in

STAINLESS

1200� F(635� C)

30

Corrosive liquids, Food processing

INCOLOY

1600� F(850� C)

40

Corrosive liquids, Air, Clamp-on

PHYSICAL LIMITATIONS AND ELECTRICAL DATA

SHEATH DIA � .005

.260

.315

.375

.430

SHEATH MINIMUM

11�"

11�"

11�"

11�"

LENGTH MAXIMUM

84"

200"

230"

255"

MAX. AMPERAGE

15

30

30

40

MAX. VOLTAGE

250

300

480

550

THREAD SIZE

6-32

8-32

10-32

10-32

STANDARD LENGTH TOLERANCES

SHEATH LENGTH

SHEATH LGH. TOLERANCE

HEATED LGH. TOLERANCE

MINIMUM COLD ENDS

Up to 20"

�1/16"

�2%

1"

20 to 100"

�1/18"

�2%

1�"

100 to 200"

�1/4"

�2%

2�"

Technical Information
Features

AKINSUN tubular heaters are made of highest quality material selection and construction techniques. This enables a maximum allowable heat output without sacrificing life.

Versatility
  • Made to .260, .315, .375 and .430 diameters
  • Several standard up to 3-5 bend configurations
  • 4 Sheath materials to choose from
Economical

Tubular heaters emit infrared energy. The energy that is most easily absorbed by a mass and converted to heat. The energy goes directly into your product. It does not have to heat a lot of air first. AKINSUN heaters provide the most economical solution to hundreds of heating applications.

Performance Capabilities
  • Sheath temperatures to 1600� F (850�C)
  • Watt densities to 40/Sq." in air and when clamped down
  • Voltages, 120, 208, 240, 480 and 550V
  • Resistant to shock, vibration and corrosion
Introduction to Tubular Heaters
SCREW PLUG TYPE
Tubular Immersion Heaters

Screw plug heaters are used for heating liquids and gases in a variety of processes. Basically hairpin bend tubular elements are welded or brazed into a screw plug. Terminals and electrical connectors are provided in a box. Heaters with built-in thermostat have a thermowell i.e. a hollow tube sealed at one end which is welded or brazed to the screw plug. A temperature sensing thermostat bulb can be inserted in the tube without the necessity of draining liquid.

Application

Sheath materials used for heating various liquids and solutions are copper, stainless steel, steel and Incoloy.

Typical Sheath Applications
  • Air and gas flow
  • Anti-Freeze (Glycol) Solutions
  • Caustic Solutions
  • Chemical Baths
  • Hydraulic oil, crude oil and asphalt
  • Industrial water rinse tanks
  • Lubricating oils at API specified watt densities
  • Paraffin
  • Vapor Degreasers
  • Water:
  • Deionized
    Demineralized
    Clean
    Process
Features
  • Watt densities to 100 W/Sq. In.
  • Integral thermowell for thermostat bulb
  • Nema standard housing
  • Corrosion resistant hardware
  • Stainless Steel, Steel, Incoloy and Copper Sheath materials
  • Compacted hairpin bends
  • Brass, Stainless Steel and Steel screw plugs

APPLICATION

SCREW PLUG SIZE

SHEATH MATERIAL

SCREW PLUG MATERIAL

Clean Water

1"

Copper

Brass

 

1�"

Copper

Brass

 

2"

Copper

Brass

 

2"

Incoloy

Brass

 

2�"

Copper

Brass

 

2�"

Copper

Brass

Process Water

1"

SS

SS

 

2"

SS

SS

 

2�"

SS

SS

Solution Water

2"

Incoloy

SS

 

2�"

Incoloy

SS

Light weight oil

1"

Steel

Steel

 

1�"

Steel

Steel

 

2"

Steel

Steel

 

2�"

Steel

Steel

Medium weight oil

2"

Steel

Steel

 

2�"

Steel

Steel

Heavy weight oil

2"

Steel

Steel

 

2�

Steel

Steel

 

1/2"

Incoloy

Steel

 

1/2"

SS

Steel

 

1/2"

Incoloy

Brass

 

1/2"

SS

Brass

 

1/2"

SS

SS

 

3/4"

Incoloy

Steel

 

3/4"

SS

Steel

 

3/4"

Incoloy

Brass

Specialty

3/4"

SS

Brass

Heaters oil and

1"

Copper

Brass

corrosion fluids

1"

SS

SS

 

1"

Steel

Steel

 

1"

Incoloy

Brass

 

1�"

Copper

Brass

 

2"

Incoloy

Brass

M.I. Coax and M.I. Biax Heater Cable
INTRODUCTION AND TECHNICAL REFERENCE

The construction of the bulk heater material follows normal mineral insulated cable practice, with a conductor, or conductors, embedded in a highly compressed mineral insulant which is, in turn covered by malleable metal sheath.

Standard AKINSUN bulk heater material contains as conductors 80% Ni-20% Cr. Alloy and Incoloy 600 sheath. Other sheath and conductor metals are selected according to the application requirements of the cable concerned. The cable is furnished in the fully annealed state.

In order for AKINSUN engineering staff to assist with heater design, it is important to obtain as much information on the intended application as possible. Sufficient information must be provided to define the environment, peak temperature (of the sheath), temperature cycles, instrumentation required (if any), physical dimensions, lead-in (and terminal), arrangements, and the electrical power system capabilities (volts, ampere, phases). This may seem to be an inordinate amount of information but all of these factors are involved in the application of M.I. cable heaters and AKINSUN is ready to assist you as required.

Features
  • High Watt Density - Up to 150 watts/sq.(23.34 watts/sq. cm.) can be obtained.
  • Exceptional Flexibility - Can be coiled on a mandrel twice its own diameter. Also allows close fit over pipes and couplings.
  • Corrosion Resistant - To most liquids and acids.
  • Long Life, Vibration Safe - The inorganic material provides a Stable non-aging element.
  • Application Temperatures - To 800�C (1472�F).
  • Heat Resistant - Can be easily welded, flame sprayed, or brazed to products. Heater can be cast in or imbedded into materials.
  • To The Researcher - It gives a tool for solving unique heating problems.
  • Proof Against Fire - Because these elements are made from inorganic materials they will neither burn nor support combustion and may be operated continuously at temperatures that would be harmful to other systems.
M.I. Coax and M.I. Biax Heater Cable
Akinrod Flexible M.I. Heater
HIGH PERFORMANCE HEATER

Various styles of heaters are available with or without cold section. Cable heaters can be manufactured with a wide choice of wattages, sheath lengths, sheath material or special shapes. Heaters can be supplied with an internal thermocouple junction, please specify type K or J thermocouple.

TYPE L

L style heaters consists of 2-conductor M.I. BIAX cable. Recommended for applications up to 20 Watts/sq. in. Diameter ranges from .040 to .188 O.D. Potting adapter P measures as follows:

P = .250, when D = .125 O.D.

P = .500, when D = .188 O.D.

Akinrod Flexible M.I. Heater - Type L
Example part number

MO6O4500-0000N12L01

Where D=. 062", H=40.5",

 

Type Q

This type of heater consists of dual diameter M.I. BIAX 2 conductor cable. Standard cold section is 4� but is also available in any other practical length. Q type heaters are recommended for applications up to 60 watts/sq. Diameter ranges from .040 to .125 O.D. Potting adapter P measures as follows:

P = .250, when D = .062 O.D.

P = .375, when D = .125 O.D

Akinrod Flexible M.I. Heater - Type Q

Example part number

M093E4016-0400N12Q01

Where D = .093� , H = 40.5" , C=4"

 

TYPE S

This is a single diameter heater with a built in standard cold section. Recommended up to 100 watts/sq. in. cold sections are also available upon request. Diameter ranges from .040 to .125 O.D.

Potting adapter measures as follows

P = .250, when D= .125 O.D. P = .500, when D = .188 O.D.

Akinrod Flexible M.I. Heater - Type S
Example part number

M093E4016-0400N12S01

Where D = .0933, H = 40.5", C=4"

Redcoil Mini Nozzle Cartridge Heaters and Band
INTRODUCTION AND TECHNICAL REFERENCE

Prime consideration must be given to the selection of the heating element material and design since this is the limiting component in high performance coil heaters.

Major operational parameters involved include maximum temperature, time at maximum temperature, and both number and rate of temperature cycles. Chemical and metallurgical effects involved include grain growth, element evaporation (especially in grain boundaries), diffusion, ordering and creep.

AKINSUN application engineers are qualified to help in your selection and design. To minimize control problems and shifts in heat flux profiles with changing temperatures, heating element should have very low temperature coefficients of resistivity (0.0001 per �C).

They should be stabilized with appropriate chemical additives that inhibit grain growth. Conventional heating alloys such as the Nichromes, Tophets, Chromels and Kanthals (among others) have even lower coefficients and have stabilizing additives. Certain nickel base alloys such as some Inconels, some Hastelloys and some Cupro-Nickel alloys exhibit similar characteristics. Pure metals do not normally make good heating elements because they have high temperature coefficient of resistivity and are not stabilized. This would cause a large variation in resistance with a change in temperature and would interfere with the desired operation and heat flux profile of many types of heaters.

Coiled Cartridge Heater
Redcoil Mini Nozzle Band and Cartridge Heaters
"E" Style Termination

Features
  • Withstands shock and vibration
  • Good contact with walls of holes
  • Fast time responds
  • Suitable for temperatures up to 600�C (1115�F)
  • High Watt density
  • Sheath is welded closed at the end for a complete seal
  • Can be supplied with or without thermocouple
  • Gives good contact with walls of hole
  • Easy to remove from blind hole - does not seize
  • Flexible
  • Inserted into rough drilled hole of curved hole

These heaters could be used as direct replacement for cartridge heaters. Especially where the holes have enlarged due to repetitive drilling during replacing cartridge heater.

Specify exact outside diameter of the coil length, watts, volts and cold tail.

Nozzle Tubular Band Heater – Akinband
NTRODUCTION

Akinband™ Heaters consist of a coil of high temperature Inconel sheath cable in a low expansion stainless steel shroud. The standard cold tail is 5" and 7" staggered. Standard lead length is 36" and 72". 250 watts heater has white/black leads and 125 watts heater has white/red leads.

NOZZLE TUBULAR BAND

INSIDE DIA.

I

HEATER WIDTH

B

VOLTS

V

WATTS

W

CATALOG NUMBER

3/4

1"

120

250

M024100S01

3/4

1"

120

200

M024100S02

3/4

1"

230

125

M024100S03

3/4

1�"

230

125

M024108S01=

3/4

1�"

230

250

M024108S02=

3/4

1�"

230

125

M024108P01*=

3/4

1�"

230

250

M024108P02**=

3/4

1�

120

285

M024116S01

3/4

1�

120

300

M024116S02

3/4

1�

240

300

M024116S03

7/8

1�

230

125

M028108S01

7/8

1�

230

250

M028108S02**=

7/8

1�

120

300

M028108S03

7/8

1�

240

300

M028108S04

1

1

120

275

M100100S01

1

1�

120

175

M100116S01

1

1�

240

325

M100116S02

1

3

120

300

M100300S01

1

3

240

300

M100300S02

1�

1�

120

175

M108108S01

1�

1�

120

300

M108108S02

1�

1�

240

300

M108108S03

1�

1�

120

235

M116116S01

1�

1�

240

260

M116116S02

1�

1�

120

375

M116116S03

1�

1�

240

375

M116116S04

1�

2

120

300

M116200S01

1�

2

240

300

M116200S02

1�

2�

240

420

M116216S01

1�

3

240

675

M116300S01

= Comes with 72" leads.

CROSS REFERENCE PART NUMBERS

OEM P/N

AKINSUN P/N

ROSEMOUNT P/N

534234

M024108P01

904FE101

520156

M024108S01

904EJ101, 904EN1D1, 904FB101

534233

M024108P02

904FE131

521334

M024108S02

904EJ131, 904EN131, 904FB131

----------

M028108S02

904EJ141, 904EN141, 904FB141

Advantages
  • Withstands shock and vibration
  • Good contact
  • Fast time response
  • Suitable for temperatures up to 600�C(1115�F)
  • High watt density
  • Longer Life than any conventional Band
  • Low profile clamping to facilitate Easy Installation
Nozzle Tubular Band Heater- Akinband

*A 230V, 125W IS ACTUALLY MADE AT 240V, 149W

** A 230V, 250W IS ACTUALLY MADE AT 240V, 268 W

Nozzle Tubular Band Heater- Akinband
 

About Us

Since our inception in 1977, Akinsun Heating Company has grown from manufacturing a single line of heaters to hundreds of state-of-the-art products.

For over 20 years, Akinsun Heating Company has been helping customers improve productivity and quality. We design, manufacture and support a broad range of heating elements and other products... Read More »