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MAXI-ZONE HIGH TEMPERATURE INSERTION HEATERS

Designed for hot press metal forming applications, the Maxi-Zone High Temperature Insertion Heater produces continuous sheath temperatures to 2000 F/1095 C. An Inconel® 600 sheath allows efficient operation at extreme temperatures. Because of this capability, many applications will observe considerable performance improvements with the Maxi-Zone versus other heat sources.

A unique feature of the Maxi-Zone is to provide two or three independently controllable areas along the sheath length. Precise temperatures can be produced in every location by arranging the process in multiple zones and monitoring and controlling each separately.

The Maxi-Zone's primary heat transfer method is by radiation. The continuing oxidation of the sheath and inside walls of the hole at these temperatures produce excellent transfer of heat. This emissivity improves with usage, allowing sheath and process temperatures to be nearly identical. Diameters are substantially undersized versus standard cartridge heater applications. A .935" diameter Maxi-Zone would be applied in a 1" or larger hole. A Maxi-Zone is easily removed and replaced. Standard Maxi-Zone diameters are .495", .685" and .935" with lengths from 18 inches to 15 feet. .210" diameter Inconel® 600 sheath tubular heaters are available for heating ceramic presses in similar applications.

From 2 to 6 separate metal sheathed elements are arranged and swaged inplace in an Inconel 600 outside sheath.
Inconel® 600 sheath for temperatures to 
2000 F/1095 C
Exact, uniform temperatures with 2 or 3 independently controllable zones
Radiant heat transfer allows undersized heaters for easy removal and replacement
Ordering Information:
Provide catalog number if available or contact Technical Support  with complete application and process information
 
The diagram illustrates a nine zone platen with six, three zone Maxi-Zone Insertion Heaters. Each zone can be sensed and controlled individually. A platen with 6 elements can be designed with 6 zones utilizing a Maxi-Zone with 2 independent zones. For even more precise control, the platen can be comprised of even more zones, depending upon what's practical.
Nominal
Maxi-Zone
Diameter
Platen
Hole
Size
.495" 9/16" or 5/8"
.685" 3/4" or 7/8"
.935" 1" or 1-1/4"
Part
Number
Zones Num.
Wires
Max.
Voltage
Max.
Amps
PCW-6570-P 2 4 600 30
PCW-6570 3 6 600 30

Other plugs are available for single zone applications.
 

A .935" diameter 240 volts single zone
B .935" diameter 240 volts two or three zone
C
.685" diameter 240 volts single zone
D
.685" diameter 240 volts two or three zone
E .935" diameter 480 volts single zone 
F .935" diameter 480 volts two or three zone
G
.685" diameter 480 volts single zone
H
.685" diameter 480 volts two or three zone


Consult iProcesSmart Technical for other diameter and voltage limitations

Transition Adaptors
Maxi-Zone
Diameter
Diameter B
.495" 9/16" 1-1/2"
.685" 1-3/8" 1-3/8"
.935" 1-3/8" 1-3/8"

Maxi-Zone
Diameter
Diameter B
.495" 1-1/4" 1-1/4"
.685" 1-1/4" 1-1/4"
.935" 1-5/8" 1-5/8"

Transition Bending

Mounting brackets or stop washers in unheated area ­ Consult Ogden.
Watt Density
To determine watt density, cold areas need be subtracted from the Sheath Length to determine the Effective Heated Length. A 1" cold area exists at the bottom end of the Maxi-Zone, and a 1" cold area is necessary between zones. The cold area required at the termination area depends upon the ambient temperature. The minimum cold area is generally 18% of the entire heated length and is increased as the ambient temperature increases. Consult Ogden for design assistance based upon application requirements.

 
Type 1
Type 2
Type 3
Type 4
 Minimum cold section at
 terminal end
       
.495"
2"
6-1/2"
7-1/2"
11"
.685"
2"
6-1/2"
8"
13"
.935"
2"
8"
10"
17"
 Minimum bending radius        
.495"
--
--
1-1/8"
1-1/8"
.685"
--
--
1-1/2"
1-1/2"
.935"
--
--
2-1/2"
2-1/2"
 Minimum straight length
 in cold section
       
.495"
2"
6-1/2"
4"
4"*
.685"
2"
6-1/2"
4"
4"*
.935"
2"
8"
4"
4"*
 * 4" before termination - 1-1/2" between radius of bends

Dia.
Min. Heated
Length Per Zone
Min. Heated
Length
Max. Heated
Length
.495"
*
8"
170"
.685"
8"
8"
172"
.935"
8"
8"
165"
* .495" diameter available in single zone only

Ordering Information:
Provide catalog number if available, or, contact iProcesSmart Technical with complete application and process information. A specific Maxi-Zone will be designed.


 

 

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