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More than 1000?
If you are looking for cartridge heaters above 1000 , we suggest the Durawatt cartridge heaters from Maxiwatt.
Are you looking for a cartridge longer than 1500 mm?
Si busca resistencias de cartucho de más de 1500 mm, le sugerimos las resistencias de cartucho Mediwatt de Maxiwatt
More than 300 units?
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Available in 72hrs | CUSTOM CARTRIDGE| Diameter | Lenght | Volts (V) | Watts (W) | T.Manufacturing | Price ($) | Price($) 3 units | Price($) 6 units | Price($) 12 units |
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| Diameter | Lenght | Volts (V) | Watts (W) | T.Manufacturing | Price ($) | Price($) 6 units | Price($) 12 units | Price($) 26 units |
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| Diameter | Lenght | Volts (V) | Watts (W) | T.Manufacturing | Price ($) | Price($) 12 units | Price($) 26 units | Price($) 51 units |
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| Diameter | Lenght | Volts (V) | Watts (W) | T.Manufacturing | Price ($) | Price($) 26 units | Price($) 51 units | Price($) 101 units |
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| Diameter | Lenght | Volts (V) | Watts (W) | T.Manufacturing | Price ($) | Price($) 51 units | Price($) 101 units |
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| Diameter | Lenght | Volts (V) | Watts (W) | T.Manufacturing | Price ($) | Price($) 101 units |
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| Diameter | Lenght | Volts (V) | Watts (W) | T.Manufacturing | Price ($) |
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By using Expan Maxiwatt cartridge heaters, you can operate your process with less downtime, higher efficiency, faster production times and more uniform heating.
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.
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.
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.
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.
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.
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
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 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 toleranceThe 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.
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.
It is observed cold spots at the end of the connections. This does not uniformly heated mould or application.
It is observed various cold areas, especially in the center of the heater from 250mm.
Intermediate sizes can be made in diameter and length, voltage, watt distribution, cold zones, special attachments, exits, etc.
| 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
| 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%L | 0.394 + 1%L | 0.591 + 1%L | 0.591 + 1%L | 0.787 + 1%L |
| L (inches) | |||||
| Minimum | 75 | 100 | 200 | ||
| Maximum | 1.200 | 1.500 | |||
| F (inches) | |||||
| Standard | 9.843 | ||||
| Custom-made | ∞ | ||||
| D Ø Diameter (mm) | 10 | 12.5 | 16 | 20 | 25 |
| Diameter nominal H7 minimum | 9.85 | 12.35 | 15.85 | 19.85 | 24.85 |
| B (mm) | 7 + 1%L | 10 + 1%L | 15 + 1%L | 15 + 1%L | 20 + 1%L |
| L (inches) | |||||
| Minimum | 75 | 100 | 200 | ||
| Maximum | 1.200 | 1.500 | |||
| F (inches) | |||||
| Standard | 250 | ||||
| Custom-made | ∞ | ||||
| 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%L | 0.394 + 1%L | 0.591 + 1%L | 0.591 + 1%L | 0.787 + 1%L |
| C (inches) | 0.787 | 0.787 | 1.008 | 1.008 | 1.299 |
| E (inches) | 0.039 | 0.059 | 0.059 | 0.059 | 0.059 |
| G (inches) | 1.063 | 1.063 | 1.299 | 1.299 | 1.614 |
| H (inches) | 0.126 | 0.126 | 0.165 | 0.165 | 0.205 |
| L (inches) | |||||
| Minimum | 2.953 | 3.937 | 7.874 | ||
| Maximum | 47.244 | 59.055 | |||
| F (inches) | |||||
| Standard | 9.843 | ||||
| Custom-made | ∞ | ||||
| D Ø Diameter (mm) | 10 | 12.5 | 16 | 20 | 25 |
| Diameter nominal H7 minimum | 9.85 | 12.35 | 15.85 | 19.85 | 24.85 |
| B (mm) | 7 + 1%L | 10 + 1%L | 15 + 1%L | 15 + 1%L | 20 + 1%L |
| C (mm) | 20 | 20 | 25.6 | 25.6 | 33 |
| E (mm) | 1 | 1.5 | 1.5 | 1.5 | 1.5 |
| G (mm) | 27 | 27 | 33 | 33 | 41 |
| H (mm) | 3.2 | 3.2 | 4.2 | 4.2 | 5.2 |
| L (mm) | |||||
| Minimum | 75 | 100 | 200 | ||
| Maximum | 1.200 | 1.500 | |||
| F (mm) | |||||
| Standard | 250 | ||||
| Custom-made | ∞ | ||||
| D Ø Diameter (inches) | 3/8" | 1/2" | 5/8" | 3/4" |
| Diameter nominal | 0.375" | 0.500" | 0.625" | 0.750" |
| H7 minimum | 0.373 | 0.497 | 0.621 | 0.746 |
| B (inches) | 0.276 + 1%L | 0.394 + 1%L | 0.591 + 1%L | 0.591 + 1%L |
| C (inches) | 0.354 | 0.394 | 0.433 | 0.512 |
| E (inches) | 0.079 | 0.059 | 0.079 | 0.079 |
| G (inches) | 0.177 | 0.197 | 0.217 | 0.256 |
| H (inches) | 0.748 | 0.886 | 1.063 | 1.299 |
| I (inches) | 0.374 | 0.394 | 0.472 | 0.709 |
| L (inches) | ||||
| Minimum | 2.953 | 3.937 | ||
| Maximum | 47.244 | 59.055 | ||
| F (inches) | ||||
| Standard | 9.843 | |||
| Custom-made | ∞ | |||
| D Ø Diameter (mm) | 10 | 12.5 | 16 | 20 | |
| Diameter nominal H7 minimum | 9.85 | 12.35 | 15.85 | 19.85 | |
| B (mm) | 7 + 1%L | 10 + 1%L | 15 + 1%L | 15 + 1%L | 20 + 1%L |
| C (mm) | 9 | 10 | 11 | 13 | |
| Ø D (mm) | 4.2 | 5.2 | 5.2 | 6.2 | |
| E (mm) | 2 | 1.5 | 2 | 2 | |
| G (mm) | 4.5 | 5 | 5.5 | 6.5 | |
| H (mm) | 19 | 22.5 | 27 | 33 | |
| L (mm) | |||||
| Minimum | 75 | 100 | |||
| Maximum | 1.200 | 1.500 | |||
| F (mm) | |||||
| Standard | 250 | ||||
| Custom-made | ∞ | ||||
| D Ø Diameter (inches) | 3/8" | 1/2" | 5/8" | 3/4" |
| Diameter nominal | 0.375" | 0.500" | 0.625" | 0.750" |
| H7 minimum | 0.373 | 0.497 | 0.621 | 0.746 |
| B (inches) | E + 1%L | E + 1%L | E + 1%L | E + 1%L |
| C (inches) | 0.157 | 0.157 | 0.157 | 0.157 |
| E (inches) | 0.472 | 0.472 | 0.551 | 0.551 |
| G (inches) | 1/4" | 3/8" | 1/2" | 3/4" |
| H (inches) | 0.669 | 0.748 | 0.945 | 1.063 |
| L (inches) | ||||
| Minimum | 2.953 | 3.937 | ||
| Maximum | 47.244 | 59.055 | ||
| F (inches) | ||||
| Standard | 9.843 | |||
| Custom-made | ∞ | |||
| D Ø Diameter (mm) | 10 | 12.5 | 16 | 20 | |
| Diameter nominal H7 minimum | 9.85 | 12.35 | 15.85 | 19.85 | |
| B (mm) | E + 1%L | E + 1%L | E + 1%L | E + 1%L | E + 1%L |
| C (mm) | 4 | 4 | 4 | 4 | |
| E (mm) | 12 | 12 | 14 | 14 | |
| G (mm) | M14 | M16 | M20 | M26 | |
| H (mm) | 17 | 19 | 24 | 27 | |
| L (mm) | |||||
| Minimum | 75 | 100 | |||
| Maximum | 1.200 | 1.500 | |||
| F (mm) | |||||
| Standard | 250 | ||||
| Custom-made | ∞ | ||||
| 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) | 0.197 + 1%L | 0.276 + 1%L | 0.394 + 1%L | 0.591 + 1%L | 0.591 + 1%L |
| C (inches) | 0.472 | 0.591 | 0.709 | 0.787 | |
| Ø E Tube (inches) | 0.394 | 0.484 | 0.563 | 0.709 | 0.787 |
| E (inches) | 0.472 | 0.472 | 0.551 | 0.551 | |
| G (inches) | 1/4" | 3/8" | 1/2" | 3/4" | |
| H (inches) | 0.669 | 0.748 | 0.945 | 1.063 | |
| L (inches) | |||||
| Minimum | 2.953 | 3.937 | |||
| Maximum | 47.244 | 59.055 | |||
| F (inches) | |||||
| Standard | 9.843 | ||||
| Custom-made | ∞ | ||||
| D Ø Diameter (mm) | 10 | 12.5 | 16 | 20 | |
| Diameter nominal H7 minimum | 9.85 | 12.35 | 15.85 | 19.85 | |
| B (mm) | E + 1%L | E + 1%L | E + 1%L | E + 1%L | E + 1%L |
| C (mm) | 4 | 4 | 4 | 4 | |
| E (mm) | 12 | 12 | 14 | 14 | |
| G (mm) | M14 | M16 | M20 | M26 | |
| H (mm) | 17 | 19 | 24 | 27 | |
| L (mm) | |||||
| Minimum | 75 | 100 | |||
| Maximum | 1.200 | 1.500 | |||
| F (mm) | |||||
| Standard | 250 | ||||
| Custom-made | ∞ | ||||
| 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) | 0.197 + 1%L | 0.276 + 1%L | 0.394 + 1%L | 0.591 + 1%L | 0.591 + 1%L |
| C (inches) | 0.472 | 0.591 | 0.709 | 0.984 | 1.181 |
| Ø E Tube (inches) | 0.394 | 0.484 | 0.563 | 0.709 | 0.787 |
| E (inches) | 0.472 | 0.472 | 0.551 | 0.551 | |
| L (inches) | |||||
| Minimum | 2.953 | 3.937 | 7.874 | ||
| Maximum | 47.244 | 59.055 | |||
| F (inches) | |||||
| Standard | 9.843 | ||||
| Custom-made | ∞ | ||||
| D Ø Diameter (mm) | 10 | 12.5 | 16 | 20 | |
| Diameter nominal H7 minimum | 9.85 | 12.35 | 15.85 | 19.85 | |
| B (mm) | E + 1%L | E + 1%L | E + 1%L | E + 1%L | E + 1%L |
| C (mm) | 4 | 4 | 4 | 4 | |
| Ø D (inches) | 10 | 12.3 | 14.3 | 18 | 20 |
| L (mm) | |||||
| Minimum | 75 | 100 | 200 | ||
| Maximum | 1.200 | 1.500 | |||
| F (mm) | |||||
| Standard | 250 | ||||
| Custom-made | ∞ | ||||
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.
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
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.
| 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 |
Our technical team and designers will help you find the cartridge that best suits your needs.
The Flexiwatt® cartridge heater simplifies installation, saves production time and costs, and increases heat transfer efficiency.
The Flexiwatt by Maxiwatt is a tubular heating element with excellent thermal properties, which can freely be bent. The handling is easy depending on the application. Can be bent in all three dimensions.
Maxiwatt offers the Flexiwatt® direct from stock, in numerousdiameters and cross sections.
For the user, the Flexiwatt®provides great advantages in warehousing. If necessary, the tubular heater can be bent easily and quickly into the required form. Take advantage of the flexibility of our Flexiwatt ® for your own operations.
All our heaters comply with standars and each heater must undergo an individual test.
The outer sheath adapts to any curvature and presses itself evenly against the surface of the groove. This guarantees optimal heat transfer ever when under extreme mechanical stress.
Discover why choose our Flexiwatt® of Maxiwatt as opposed to a common cartridge heater.
Easy installation: ensuring a uniform finish in each application.
Unrivaled manual flexibility: Flexiwatt® adapts to any shape with ease, without the need for special tools. Directs heat exactly where you need it, overcoming the limitations of rigid cartridge heaters.
3-Dimensional groove geometry customize your design for optimal thermal efficiency. Maximum contact, up to 75% contact surface with Flexiwatt heaters.® rounds, following the recommended slot geometry.
More accurate curves: with the smallest bending radius on the market, Flexiwatt® fits into tight spaces without sacrificing performance.
Uniform temperature: minimizes variations between the heater jacket and the part, ensuring consistent results. Leaders in thermal efficiency, our technology ensures heat transfer unrivaled in the industry.
Efficient storage: Flexiwatt® is easily stored in an upright position, maximizing available space.
Energy savings: Reduces energy costs by reducing the thermal mass of the tool. Fast heat-up, reduced heat-up times for more efficient production.
Our Flexiwatt® of Maxiwatt allows you to expand a wide range of varieties for your specific needs.
Unheated folding zones: maximiza la eficiencia adaptando las áreas calefactadas según tus necesidades.
Voltage flexibility: from 12V to 250V, Flexiwatt® adapts to a wide range of connection requirements.
Longitud adaptable: customizes each installation with individual lengths, optimizing thermal performance.
Adjustable power: adjusts the heating power to your exact specifications, ensuring precise results.
Versatile connections: individualized connection options for seamless integration into your system, maximizing energy efficiency.
For more than 50 years, our goal has been to offer our customers the best cartridge heaters. The highest technological standards are used in their manufacture.
| Sheath material | Stainless steel |
| Min. Inner radius of curvature | 10 mm |
| Tolerance in watts | ± 10% |
| Lenght tolerance | ± 5% |
| Heating element sheath temperature | 230 V |
| High voltage test | <1000 V AC |
| Insulation resistance | >≥ 5 MΩ at 500V DC |
| Leakage current | < 0.5 mA at 253 V AC |
*tested at ambient temperature
Stainless steel armor (Ref. P.S.Sa.)
Protects against shocks and spillage of viscous products, relative mobility. The maximum in protection for abrasive
Fiberglass sleeve (Ref. P.Fv)
Protect against high temperatures, moderate friction. Ideal for twined conduction cable.
Vinkel Tube (Ref. P.Tv)
Protects against shocks and spillage of viscous products, relative mobility
Silicone Sleeve (Ref. P.Fs)
Ideal for moisture environment with moderate friction. Protects the interior of fiberglass lead.
Braided Metal (Ref. P.Tm)
For places with high friction and constant flexibility. Stainless steel.
Base Ending (Ref. “T1”)
Cartridge with a heat-resistant ceramic paste which seals the entry.
Chip Ending (Ref. “T3”)
Cartridge with a steatite ceramic piece. Ready for a quick change of wires.
Steatite Ending (Ref. “T2”)
Cartridge with one steatite ceramic piece which just out. More consistency to the cable entry.
Ending 90º (Ref. “T9”)
Fully watertight with our Ending T1W and PTFE leads. This ending can be used in any hostile situation.
Our technical team and designers will help you find the cartridge that best suits your needs.
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