More than 70,000 satisfied customers 701 BRICKELL AVE SUITE 1550 Miami Florida +1 866-MAXIWAT

Your cartridge heater in 24 hours for standard sizes.


We have more than 2,000,000 units in stock.

Customize your cartridge heater and receive it in 72 hours














Termination of cartridge

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INCREASE YOUR PROFITS WITH EXPAN MAXIWATT®

By using Expan Maxiwatt cartridge heaters, you can operate your process with less downtime, higher efficiency, faster production times and more uniform heating.

EXPAN MAXIWATT® THE MOST ADJUSTED AND FASTER EXTRACTION SYSTEM

The expandable cartridge Heaters solve two major problems with conventional high density heaters, poor durability and proper fit extraction, improving the accuracy of the temperature with hundreds of attachments and exits for all kind of processes.

With the expandable cartridge heaters we join for the first time the best of the common cartridge heater with a cartridge and an adaptive tuning quick and easy removal.

The Expandable Heaters are made with just one heating wire spring shaped that has more quantity of wire than any other model of cartridge heater. We obtain, this way, a uniform heating throughout the whole perimeter, with no kinds of cold areas or with different temperatures.

  • Hard ceramic head
  • Split sheath
  • Stainless steel
  • Conducting wire pure nickel

The Expandable Cartridge HeatersThe only cartridge heater in the market that heats along the complete length

THE SYSTEM EXPAN MAXIWATT®

The Expandable Heaters consist of a compressed cartridge heater a high performance and made with the best materials with the particularity of being able to expand itself because of the fork-shaped tensioned in a point that allows the expansion and retraction of the cartridge heater.

CONTRACTION PROCESS

At the contraction process the Expandable Heaters returns to its original shape, helping for easy removal of the bore, with the subsequent advantages like not having to drill the mold, reuse them in other locations, reducing the stock since it will have the same diameter for different bores, etc.

EXPANSION PROCESS

In the expansion process the expandable cartridge fits the walls the bore, providing the correct transference of the temperature, and avoiding the “oven effect” that occurs in other types of cartridge poorly dimensioned with respect to diameter and room. The drills that for any other circumstances are oversized have the best solution to allow more adjustament tolerance.

LONGER DURABILITY «The difference»

More Nickel/Chrome 80/20 heating wire at the Expandable Heaters than in a bipartite heater or a compressed cartridge heater with the same compression. The Expandable Heater has more heating wire (nickel / chromium80/20) than the bipartite heaters or compressed cartridges with the same compression. The main key is the more heating wire, the larger diameter for the sameamount of watts. The larger diameter reduces fatigue and use of the heating wire, resulting into a longer service life.

Long lengths

Expandable heaters will not bend, which is the main problem with conventional cartridges, due to the shape of its tubes which perform the function to reinforce the structure of expandable heaters longitudinally, helping for its removal, by expanding equally throughout the perimeter, heat transference will be uniform not creating curvatures which produce cavities resulting overheat breaking the heater.

Compressed Cartridge heaters

Split Sheath Expan

FASTER EXTRACTION

The extraction, faster and easier even in long lengths

Expandable heaters, for its unique construction, allow the easy removal when the cartridge is cold saving time and considerable effort, minimizing the time that the machine is stopped and human resources. Needs no adjustment paste and you will not have to drill, destroy or undertake the costly operations to remove the cartridge, you can quickly use the Expandable Heaters in other moulds that need heating.

Please note that you must provide us with exact hole diameter in order to start EXPAN production with the right tolerance. It is important to get harmony between the hole and heating element for a perfect working. Tolerance for EXPAN heaters is -0,0039” / -0,006”. For example, if the hole you will insert the EXPAN element is Ø 1/2” we will produce the split elements between 0,496” – 0,494”. You must inform us about the exact diameter for the hole you will place the heater and we will produce with the right tolerance.

THE HEATER THAT FITS IN THE HOLE

The expansion around the perimeter of the cartridge make of the Expandable Heater the best solution for large diameter holes, wear and tear caused by expansion or not made to very close tolerances.

Maximum adjustment Better heat transfer
Adjustment tolerance

The adjustment tolerance of the heater is called the distance obtained between the surface of the cartridge and the inner wall of the hole, which must be uniform throughout its lineal perimeter.

THERMOGRAPHIC STUDY

Expan Heaters thermography®

Clearly shows the absence of cold zones due to its unique construction, which allows more heating wire in the whole area of the cartridge included in the connection areas.

Split Sheath cartridge heater thermography®

It is observed cold spots at the end of the connections. This does not uniformly heated mould or application.

Compressed high charge cartridge heater thermography

It is observed various cold areas, especially in the center of the heater from 250mm.

ESPECIFICATIONS

Intermediate sizes can be made in diameter and length, voltage, watt distribution, cold zones, special attachments, exits, etc.

TECHNICAL KEY
Sheath material Stainless steel
Heating conductor material NiCr 8020
Max. Sheath temperature 750 ºC / 1380 ºF
Max. Voltage >120V <=480V (OTHER V.: TO CONSULT)
Wattage tolerance* ± 10%
High voltage resistance* 1500 V AC at > 24 V operation voltage
500 V at <= 24 V operation voltage
Insulation resistance* >> 5 MΩ at 500 V DC
Leakage current <= 0.5 mA at 253 V AC
Lenght tolerance A 2%, min A 1mm
Standard diameter tolerance metric -0’10-0’15
inch -0,003937 -0,0059055

*tested at ambient temperature

T1

Inches
D Ø Diameter (inches) 3/8" 1/2" 5/8" 3/4" 1"
Diameter nominal 0.375"0.500"0.625"0.750"1.000"
H7 minimum 0.373"0.497"0.621"0.746"0.994"
B (inches) 0.276 + 1%L0.394 + 1%L0.591 + 1%L0.591 + 1%L0.787 + 1%L
L (inches)
Minimum 75100200
Maximum 1.2001.500
F (inches)
Standard 9.843
Custom-made
Milimeter
D Ø Diameter (mm) 10 12.5 16 20 25
Diameter nominal H7 minimum 9.8512.3515.8519.8524.85
B (mm) 7 + 1%L10 + 1%L15 + 1%L15 + 1%L20 + 1%L
L (inches)
Minimum 75100200
Maximum 1.2001.500
F (inches)
Standard 250
Custom-made

T7

Inches
D Ø Diameter (inches) 3/8" 1/2" 5/8" 3/4" 1"
Diameter nominal 0.375"0.500"0.625"0.750"1.000"
H7 minimum 0.373"0.497"0.621"0.746"0.994"
B (inches) 0.276 + 1%L0.394 + 1%L0.591 + 1%L0.591 + 1%L0.787 + 1%L
C (inches) 0.7870.7871.0081.0081.299
E (inches) 0.0390.0590.0590.0590.059
G (inches) 1.0631.0631.2991.2991.614
H (inches) 0.1260.1260.1650.1650.205
L (inches)
Minimum 2.9533.9377.874
Maximum 47.24459.055
F (inches)
Standard 9.843
Custom-made
Milimeter
D Ø Diameter (mm) 10 12.5 16 20 25
Diameter nominal H7 minimum 9.8512.3515.8519.8524.85
B (mm) 7 + 1%L10 + 1%L15 + 1%L15 + 1%L20 + 1%L
C (mm) 202025.625.633
E (mm) 11.51.51.51.5
G (mm) 2727333341
H (mm) 3.23.24.24.25.2
L (mm)
Minimum 75100200
Maximum 1.2001.500
F (mm)
Standard 250
Custom-made

MORE TECHNICAL FEATURES

T7B

Inches
D Ø Diameter (inches) 3/8" 1/2" 5/8" 3/4"
Diameter nominal 0.375"0.500"0.625"0.750"
H7 minimum 0.3730.4970.6210.746
B (inches) 0.276 + 1%L0.394 + 1%L0.591 + 1%L0.591 + 1%L
C (inches) 0.3540.3940.4330.512
E (inches) 0.0790.0590.0790.079
G (inches) 0.1770.1970.2170.256
H (inches) 0.7480.8861.0631.299
I (inches) 0.3740.3940.4720.709
L (inches)
Minimum 2.9533.937
Maximum 47.24459.055
F (inches)
Standard 9.843
Custom-made
Milimeter
D Ø Diameter (mm) 10 12.5 16 20
Diameter nominal H7 minimum 9.8512.3515.8519.85
B (mm) 7 + 1%L10 + 1%L15 + 1%L15 + 1%L20 + 1%L
C (mm) 9101113
Ø D (mm) 4.25.25.26.2
E (mm) 21.522
G (mm) 4.555.56.5
H (mm) 1922.52733
L (mm)
Minimum 75100
Maximum 1.2001.500
F (mm)
Standard 250
Custom-made

T8

Inches
D Ø Diameter (inches) 3/8" 1/2" 5/8" 3/4"
Diameter nominal 0.375"0.500"0.625"0.750"
H7 minimum 0.3730.4970.6210.746
B (inches) E + 1%LE + 1%LE + 1%LE + 1%L
C (inches) 0.1570.1570.1570.157
E (inches) 0.4720.4720.5510.551
G (inches) 1/4"3/8"1/2"3/4"
H (inches) 0.6690.7480.9451.063
L (inches)
Minimum 2.9533.937
Maximum 47.24459.055
F (inches)
Standard 9.843
Custom-made
Milimeter
D Ø Diameter (mm) 10 12.5 16 20
Diameter nominal H7 minimum 9.8512.3515.8519.85
B (mm) E + 1%LE + 1%LE + 1%LE + 1%LE + 1%L
C (mm) 4444
E (mm) 12121414
G (mm) M14M16M20M26
H (mm) 17192427
L (mm)
Minimum 75100
Maximum 1.2001.500
F (mm)
Standard 250
Custom-made

T9

Inches
D Ø Diameter (inches) 3/8" 1/2" 5/8" 3/4" 1"
Diameter nominal 0.375"0.500"0.625"0.750"1.000"
H7 minimum 0.3730.4970.6210.7460.994"
B (inches) 0.197 + 1%L0.276 + 1%L0.394 + 1%L0.591 + 1%L0.591 + 1%L
C (inches) 0.4720.5910.7090.787
Ø E Tube (inches) 0.3940.4840.5630.7090.787
E (inches) 0.4720.4720.5510.551
G (inches) 1/4"3/8"1/2"3/4"
H (inches) 0.6690.7480.9451.063
L (inches)
Minimum 2.9533.937
Maximum 47.24459.055
F (inches)
Standard 9.843
Custom-made
Milimeter
D Ø Diameter (mm) 10 12.5 16 20
Diameter nominal H7 minimum 9.8512.3515.8519.85
B (mm) E + 1%LE + 1%LE + 1%LE + 1%LE + 1%L
C (mm) 4444
E (mm) 12121414
G (mm) M14M16M20M26
H (mm) 17192427
L (mm)
Minimum 75100
Maximum 1.2001.500
F (mm)
Standard 250
Custom-made

T9B

Inches
D Ø Diameter (inches) 3/8" 1/2" 5/8" 3/4" 1"
Diameter nominal 0.375"0.500"0.625"0.750"1.000"
H7 minimum 0.3730.4970.6210.7460.994
B (inches) 0.197 + 1%L0.276 + 1%L0.394 + 1%L0.591 + 1%L0.591 + 1%L
C (inches) 0.4720.5910.7090.9841.181
Ø E Tube (inches) 0.3940.4840.5630.7090.787
E (inches) 0.4720.4720.5510.551
L (inches)
Minimum 2.9533.9377.874
Maximum 47.24459.055
F (inches)
Standard 9.843
Custom-made
Milimeter
D Ø Diameter (mm) 10 12.5 16 20
Diameter nominal H7 minimum 9.8512.3515.8519.85
B (mm) E + 1%LE + 1%LE + 1%LE + 1%LE + 1%L
C (mm) 4444
Ø D (inches) 1012.314.31820
L (mm)
Minimum 75100200
Maximum 1.2001.500
F (mm)
Standard 250
Custom-made

LEADS AND PROTECTIONS

We have all features you may require for underwater applications, vibration, high temperatures, special food grade, corrosive environment, moisture etc.

FiberGlass Lead (Ref. P.Cv)

Pure nickel lead, sheated with fiberglass, coated with silicone, resistant to heat. Standard lead.

Fluoropolymer Lead (PFA) (Ref. P.Tf.)

Ideal for watertightness and cleanliness of the cable. It does not resist high temperatures.

Braided Metal (Ref. P.Tm.)

For places with high friction and constant flexibility. Stainless steel.

Nickel Rod (Ref. P.Vn.)

Rigid pure nickel rods where moving the position of the Rigid pure nickel rods where moving the position of the movements. They are coated with insolated materials.

Fiberglass Sleeve (Ref. P.Fv.)

Protects against high temperatures, moderate friction. Ideal for twined conduction cable.

3 Core Silicone Tube (Ref. P.Cs.)

Ideal for long lenghts. Does resist high temperatures. Copper core.

Steatite (Ref. Pst.)

Ideal for high temperatures. Interior pure nickel wire. Not recommended for to knocks nor excessive vibrations.

Flexible Silicone Lead (Ref. P.Sf.)

Ideal for excessuve movement, vibration and moderate temperature.

Silicone Sleeve (Ref. P.Fs.)

Ideal for moisture enviroment with moderate friction. Protects the interior of fiberglass lead.

Nickel Tube (Ref. P.Tv.)

Protects against knocks and spillage of viscous products, relative mobility.

TERMOCOUPLES, THE BEST COMPLEMENT

The cartridge heater can be made with a built in sensor, at any position of the heater as customer request. The advantages of incorporating sensors are countless, for example long life durability, localized temperature accuracy, energy saving, where you cannot accommodate a conventional sensor due to room problems.See thermocouples

QUALITY OF MATERIALS

The Expandable Heaters are manufactured with an internal compacting system of all its components in order to increase their lifetime. The Nickel/Chrome 80/20 conductor wire is introduced into the cavities of a ceramic core which focuses the suitable separation in order to obtain a better isolation. Fully coated with magnesium oxide of high purity grain sized controlled to ensure the complete cartridge Expan filed. Later a compacting process and surface rectification until calibrated the desired size. Finally, a rigorous quality control that guarantees the best performance of the cartridge.

ADVANTAGES OVER OTHER TYPES OF CARTRIDGE HEATERS

Expan cartridge heaters Common cartridge heaters
Longer life
Faster and easier extraction
More length without bending
More hole tolerance
Heated ends
Heats along the complete length
Compressed version.
Flexible leads from inside
Built in Thermocouple
Has more and thicker wire
Interested in our Expan Maxiwatt? Let us help you get more information! Complete the form below and we will contact you as soon as possible.

Our technical team and designers will help you find the cartridge that best suits your needs.

WE MANUFACTURE YOUR CUSTOM-MADE CARTRIDGE HEATER IN 24H

Our technical team and designers will help you find the best Cartridge to suit your needs.

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