Cast-In-Thermo-Platens

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Cast Materials

Aluminum

Material: Standard Aluminum 319 (Optional Aluminum 356 in Learn More)

Maximum Surface Temperature: 700°F (371°C)

Density (lb/in³): 0.101

Coefficient of Linear Thermal Expansion (in/in/°F × 10^-6): 12.7 @ 68° – 572°F

Thermal Conductivity (BTU-in/hr-ft²-°F): 754

Bronze

Material: Bronze

Maximum Surface Temperature: 1350°F (732°C)

Density (lb/in³): 0.272

Coefficient of Linear Thermal Expansion (in/in/°F × 10^-6): 9 @ 68° – 572°F

Thermal Conductivity (BTU-in/hr-ft²-°F): 437

Brass

Material: Yellow Brass

Maximum Surface Temperature: 1200°F (649°C)

Density (lb/in³): 0.304

Coefficient of Linear Thermal Expansion (in/in/°F × 10^-6): 12.2 @68° – 500°F

Thermal Conductivity (BTU-in/hr-ft²-°F): 582

Heating Element Exit Locations

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Type TE1

Elements exiting through the thickness toward the ends of the width or length.

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Type TE2

Elements exiting through the thickness toward the center of the width or length.

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Type TE3

Elements exiting through the thickness & recessed to protect the screw terminals from mechanical damage. Can be located toward the end or center

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Type TE4

Elements exiting toward the ends of the width or length through the top surface.

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Type TE5

Elements exiting at the end & toward the center of the width or length through the top surface.

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Type TE6

Elements exiting toward the center of the length & width & through the top surface.

Customer Specified

Customer specified: Please include detailed drawing when submitting to Tempco.

None

This cast-in will not have a heating element.

Electrical Terminations

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Type S: Heavy Duty Ceramic Insulators (Standard)

Standard unless otherwise specified.
.315" diameter heater has 8-32 screw terminals.
.430" diameter heater has 10-32 screw terminals.

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Type T: Mica Insulator

Mica insulator is the same diameter as the heating element.
.260" diameter heater has 6-32 screw terminals.
.315" diameter heater has 8-32 screw terminals.
.430" diameter heater has 10-32 screw terminals.

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Type T7: Ceramic Insulator

Ceramic insulator is the same diameter as the heating element.
.260" diameter heater has 6-32 screw terminals.
.315" diameter heater has 8-32 screw terminals.
.430" diameter heater has 10-32 screw terminals

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Type C4: Heavy Duty Ceramic Insulator with Terminal Cover

Heavy duty ceramic insulator with terminal cover.
.315" diameter heater has 10-32 screw terminals.
.430" diameter heater has 10-32 screw terminals.

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Type P: Plain Pin

Plain terminal pin. Specify Length "L."
Standard 1/2" (12.7 mm) pin length.

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Type R: Mica Washers

Mica washers with 90° blockhead screw terminal with 10-32 screw threads.
Available for .315" and .430" diameter heaters.

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Type R2: Mica Washers with Lead Wire Connection

Mica washers with blockhead and through hole for lead wire connection. Eliminates the use of ring terminals.
Available for .315" and .430" diameter heaters.
Accepts 6-14 gauge wire.

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Type E: Right-Angle Lug

Right-angle lug welded to pin with mica washer insulators and 10-32 binding head screw.
Available for .260", .315" and .430" diameter heaters.

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Type L and L9: Terminal Lug and Pin

Terminal lug spot welded to pin with 10-32 binding head screw.
Available for .260", .315" and .430" diameter heaters.
Type L represents straight; Type L9 represents 90° to pin. Specify lug orientation.

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Type SF and SF9: Quick Disconnect Spade Tabs

Quick-disconnect spade tabs spot welded to pin.
Available for .260", .315" and .430" diameter heaters.
Type SF represents straight. Type SF9 represents 90° to pin. Specify tab orientation.

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Type F: Flexible Lead

Flexible lead: insulated stranded wire crimped to cold pin. Crimp connection is insulated with fiberglass sleeving.
Available for .260", .315" and .430" diameter heaters.
Wire insulation rated to 250°C, 450°C optional. Specify lead length.

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Type R1: Flexible Armor Cable

Flexible Armor Cable provides excellent protection to lead wires against abrasion and contaminants.
Available for .260", .315" and .430" diameter heaters. Specify cable length and lead length. Style may vary from depiction depending on heater diameter and cable diameter used.

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Type R1A: Stainless Steel Wire Overbraid

Stainless Steel Wire Overbraid provides flexibility and excellent protection to lead wires against abrasion.
Available for .260", .315" and .430" diameter heaters. Specify stainless steel wire overbraid length and lead length.
Style may vary from depiction depending on heater diameter and braid diameter used.

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Type MR: Strain Relief and Lead Wire - Moisture Resistant

Moisture resistant shrink strain relief and lead wire with or without stainless steel overbraid.
Available for .260", .315" and .430" diameter heaters. Specify lead wire and overbraid length.
Maximum operating temperature is 350°F (177°C).

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Type TS: Teflon® Sleeving over Lead Wire

Contamination seal shrink-down Teflon® sleeving over the heater and lead wire splice. Provides a good moisture resistant seal. Maximum operating temperature 500°F (260°C).
Available for .260", .315" and .430" and diameter heaters. Specify lead length.

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Type P1: Quick Disconnect Plug

Quick-disconnect plug, either mounted directly on casting or on elements ends offset a specified distance from casting.
Rating: 16A-250VAC.

Termination Protection

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Type C2: Standard Terminal Box (on flat pad)

Type C2 is an individual terminal box for protecting the terminals on each Cast-In Band Heater half and on many other Cast-In Heater designs with one set of heater terminals.
The C2 box design requires a flat pad on half-round castings or a flat surface on other casting designs for mounting. It is made from heavy gauge, rust-resistant sheet metal. The cover is removable for easy access to terminals. The box has two 7/8" diameter knockouts opposite each other for standard 1/2" BX connectors.

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Type P2: Quick Disconnect Plug Assembly with Box

Quick-Disconnect Cup assemblies provide the simplest and safest means for applying power to any type of Cast-In Heater installation. The box extends over the screw terminals on both Cast-In Band Heater halves. The combination of prewired cup and box assembly, along with factory prewired high temperature lead wire protected with armor cable, eliminates live exposed heater terminals and electrical wiring, protecting employees from electrical shock and the possibility of electrical shorts due to exposed wiring.

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Type EP: Explosion & Moisture Resistant Box

Cast iron explosion and moisture resistant boxes should be used in areas where the surrounding air may become contaminated with combustible gases or a high humidity level may exist. Installation requires one box per Cast-In Heater half and they are brazed to the tubular heater. The standard box has one 1/2" NPT hub.

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Type MPR: Moisture Resistant Box

This design has a moisture resistant die cast aluminum box with a non-removable polyurethane gasket in the lid. Lid is secured with captive stainless steel screws. Body and lid are painted in basic industrial gray; interior contains copper ground screw. Box is mounted to a plate that is brazed to the element. Available in a wide variety of sizes.

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Type MR1: Moisture Resistant Box with Shield

This design incorporates the MPR housing style along with a perforated tube shielding unheated extensions of the tubular heating elements. This feature provides mechanical strength to the element extension and prevents overheating of the terminals, reducing possible premature failure from corrosion and oxidation.

None

This Cast-In will not have Terminal Protection.

Cooling Tube Exit Locations

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Type CT1

Cooling tubes exiting through the thickness toward the ends of the width or length.

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Type CT2

Cooling tubes exiting through the thickness opposite of each other toward the ends of the width or length.

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Type CT3

Cooling tubes exiting at the ends of the width or length through the top surface.

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Type CT4

Cooling tubes exiting through the thickness at opposite ends of each other toward the ends of the width or length.

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Type CT5

Cooling tubes exiting through the thickness at opposite ends of each other with one in the width and one in the length.

Customer Specified

Customer specified: Please include detailed drawing when submitting to Tempco.

None

This cast-in will not have cooling tubes.

Cooling/Flow Tube Fittings

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Type FF: Flared Seal Fittings

Brass flared seal fittings are well adapted for low to medium pressure and resistant to mechanical pullout. Available for 3/8" and 1/2" diameter tubing with SAE 45° flare.

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Type HS: Hi-Seal Fittings

Hi-seal brass fittings are highly dependable under the most adverse conditions. For reliable and trouble-free service with ease of installation, we strongly recommend hi-seal fittings.
Available for 3/8" and 1/2" diameter tubing. Male thread is 1/2" NPT for 1/2" tube and 3/8" tube.

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Type RA: 90° Copper Elbow

90° copper elbow is brazed to the Cast-In Heater cooling tube extension with additional tube extension for connecting cooling lines with compression and/or flared fittings.
Available for 3/8" and 1/2" diameter tubing. If required, specify.

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Type RT: Cast Brass 90° Threaded Elbow

90° threaded elbow is brazed to the cooling tube extension,
providing an easy and quick method for connecting cooling lines. Recommended to be factory installed to assure good braze seals.
Available for 3/8" and 1/2" NPT internal threads. If required, specify.

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Type R3: Straight Threaded Copper Fitting

Straight threaded fitting is brazed to the cooling tube extensions, providing an easy and quick method for connecting cooling lines. Recommended to be factory installed to assure good braze seals.
Available for 3/8" and 1/2" diameter tubing with internal threads. If required, specify.

Installation Accessories

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Tubing for Cooling Lines

Cooling Line Tubing can be used to connect the Tempco Cast-In heat/cool bands to the plumbing system of your extruder. Tubing is available in 6'8" lengths for U.P.S. shipments and up to 20' lengths for truck shipments. Barlow’s formula below was used to calculate Working Pressure in the table.

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Wire Braided Hose

Flexible Teflon® Wire Braided Hose provides an excellent means of connecting Cast-In Heaters to the extruder plumbing system. This style of hose meets the demands of medium to tight bending radius requirements. The stainless steel braid protects the Teflon® hose from any harsh mechanical conditions that may be present.

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Adaptor Fittings

Rigid brass adapter fittings are used to mate the base hose assembly to your existing installation.

Additional Options

125 RMS Standard

RMS Surface Finish as defined in ASME B46.1 — RMS is the root mean square of the profile height deviations from the mean line, recorded within the evaluation length. The standard surface finish for the machined surface of Tempco cast-in heaters is 125 RMS. Consult Tempco if a different surface finish is required.

Special Features

Electroless Nickel-Plated — A plating technique (without using an electric current) used to deposit a coating of nickel on a substrate to prevent corrosion, wear and also as a protective coating.

Teflon Coating — Teflon is non-reactive so it is often used in containers and pipework for reactive and corrosive chemicals.

Hard coat anodizing — Anodizing increases resistance to corrosion and wear.

Magnaplate — Strong wear and corrosion resistance non-stick coating that withstands high temperatures.

Customer Specified Finish

Please specify a finish.

Cast-In Thermo-Platens

Cast-In Thermo-Platens

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Cast Materials

Cooling Methods

Heating Element Exit Locations

Electrical Terminations

Termination Protection

Cooling Tube Exit Locations

Cooling Tube Fittings

Installation Accessories

Additional Options

Cast Materials

Aluminum

Bronze

Brass

Heating Element Exit Locations

Type TE1

Type TE2

Type TE3

Type TE4

Type TE5

Type TE6

Customer Specified

None

Electrical Terminations

Type S: Heavy Duty Ceramic Insulators (Standard)

Type T: Mica Insulator

Type T7: Ceramic Insulator

Type C4: Heavy Duty Ceramic Insulator with Terminal Cover

Type P: Plain Pin

Type R: Mica Washers

Type R2: Mica Washers with Lead Wire Connection

Type E: Right-Angle Lug

Type L and L9: Terminal Lug and Pin

Type SF and SF9: Quick Disconnect Spade Tabs

Type F: Flexible Lead

Type R1: Flexible Armor Cable

Type R1A: Stainless Steel Wire Overbraid

Type MR: Strain Relief and Lead Wire - Moisture Resistant

Type TS: Teflon® Sleeving over Lead Wire

Type P1: Quick Disconnect Plug

Termination Protection

Type C2: Standard Terminal Box (on flat pad)

Type P2: Quick Disconnect Plug Assembly with Box

Type EP: Explosion & Moisture Resistant Box

Type MPR: Moisture Resistant Box

Type MR1: Moisture Resistant Box with Shield

None

Cooling Tube Exit Locations

Type CT1

Type CT2

Type CT3

Type CT4

Type CT5

Customer Specified

None

Cooling/Flow Tube Fittings

Type FF: Flared Seal Fittings

Type HS: Hi-Seal Fittings

Type RA: 90° Copper Elbow

Type RT: Cast Brass 90° Threaded Elbow

Type R3: Straight Threaded Copper Fitting

Installation Accessories

Tubing for Cooling Lines

Wire Braided Hose

Adaptor Fittings

Additional Options

125 RMS Standard

Special Features

Customer Specified Finish

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Tempco Electric Heater Corporation