---
title: Plastic Injection Molding
description: Several types of heaters are used in plastic injection molding to heat the molds and other components of the molding machine—all play critical roles.
image: https://marketing.backermarathon.com/hubfs/Imported_Blog_Media/blog-group-collage-injection-mold.jpg
---

[Skip to content](https://marketing.backermarathon.com/blog/www-backermarathon-com-plastic-injection-molding-oem#main-content)

- [Blog](https://marketing.backermarathon.com/blog/)
- [Distributor Locator](https://www.backermarathon.com/locator/)
- [Online Retailers](https://www.backermarathon.com/online-resellers/)
- [About Us](https://www.backermarathon.com/about_us/)
- [Contact Us](https://www.backermarathon.com/contact/)

# Backer Marathon

[Backer Marathon](https://www.backermarathon.com/)

Toggle navigation Menu 

[Phone - 1-830-775-1417](tel:1-830-775-1417)

[Backer Marathon](https://www.backermarathon.com/)

- Call Us Today [1-830-775-1417](tel:1-830-775-1417)
- [Customer Portal](https://www.backermarathon.com/account/login.cfm)

- [![Home](https://www.backermarathon.com/_img/icon-home.png)](https://www.backermarathon.com/)
- [Heaters](https://www.backermarathon.com/products/heaters) [Heaters](https://www.backermarathon.com/products/heaters) 
    - | - [View all Heaters](https://www.backermarathon.com/products/heaters) - [Cartridge Heaters](https://www.backermarathon.com/products/cartridge-heaters/) - [Band Heaters](https://www.backermarathon.com/products/band-heaters/) - [Coil Heaters](https://www.backermarathon.com/products/coil-heaters/) - [Strip Heaters](https://www.backermarathon.com/products/strip-heaters/) - [Flexible Heaters](https://www.backermarathon.com/products/flexible-heaters/) - [Nozzle Heaters](https://www.backermarathon.com/products/nozzle-heaters/) - [Air Heaters](https://www.backermarathon.com/products/air-heaters/) - [Flexible Tubular Heaters](https://www.backermarathon.com/products/hotset-flexible/) - [Box Heaters](https://www.backermarathon.com/products/box-heaters/) | Cartridge Heaters Backer Marathon Heater's offers several cartridge heater styles with options for applications up to 1600°F. Choose from one of our thousands of in stock cartridge heater models or let our engineers design a custom heater for your application. Cartridge Heaters Brochure Download Band Heaters When heating is required around a nozzle or a pipe, a band heater is the optimal solution for your heating needs. Our current band products are separated in two types: Mica Band Heaters and Starflex Band Heaters. Each type offers different temperature tolerances as well as flexibility and construction options. Band Heaters Brochure Download Coil Heaters When highly focused heat is required and a very low profile is imperative, coil heaters are the best cost-effective option. Coil heaters may be used to concentrate the heat on specific segments or the coil may be spread to equalize the temperature across the object to be heated. Coil Heaters Brochure Download Strip Heaters Backer Marathon strip heaters are manufactured to your custom specifications. Mica Strip heaters offer a low profile option for applications of up to 1200°F. Ceramic Strip heaters offer a rugged construction for application of up to 1200°F. They are direct bolt in replacements for popular brands. Strip Heaters Brochure Download Flexible Heaters Backer Marathon flexible heaters provide outstanding performance in applications up to 450°F under a variety of operating conditions. Properly applied silicone rubber heater life routinely exceeds 10 years. Silicone rubber has a high dielectric strength, is flame retardant, and non-toxic. Design versatility permits special heat profiles allowing zones of higher or lower heat concentration and their flexible construction makes them easy to install on a variety of surfaces. Flexible Heaters Brochure Download Nozzle Heaters Backer Marathon Nozzle Heater Standard Features include; oxidation resistant metal sheath, protective sleeving where leads exit the heater, stainless steel clamping strap with barrel nuts and 6-32 screw, 10" High temperature leads with our without SS braid covering. 1" to 3" diameters and 1" to 6" widths are available. Backer Marathon Nozzle Heaters are also available in low profile wedgelock construction. Nozzle Heaters Brochure Download Air Heaters Backer Marathon air heaters feature an open coil of high temperature resistance wire electrically isolated in a stainless steel sheath. Because the air being heated passes directly over the resistance wire, maximum heat transfer efficiency is achieved. Backer Marathon brand air heaters are used for heat staking, plastic welding, laminating, drying, heat sealing, and any other operation where air needs to be heated up 1000° F. Air Heaters Brochure Download Hotset Flexible Tubular Heater Elements Backer Marathon is a distributor for HotSet flexible tubular heaters. HotSet flexible tubular heaters make the heating of complex platens, shapes, and machines possible. Simplify your machine design while reducing maintenance time and cost by using HotSet flexible heaters. Hotset Flexible Tubular Heater Elements Brochure Download Box Heaters Backer Marathon carries Mica Box Heaters. Box Heaters Brochure Download |
      | --- | --- |
- [Thermocouples](https://www.backermarathon.com/products/thermocouples) [Thermocouples](https://www.backermarathon.com/products/thermocouples) 
    - | - [View all Thermocouples](https://www.backermarathon.com/products/thermocouples) - [Mineral Insulated Thermocouples](https://www.backermarathon.com/products/mineral-insulated-thermocouples/) - [General Purpose Thermocouples](https://www.backermarathon.com/products/general-purpose-thermocouples/) - [Thermocouple Extensions & Accessories](https://www.backermarathon.com/products/thermocouple-extensions-accessories/) | Mineral Insulated Thermocouples Mineral Insulated Thermocouples are manufactured at Backer Marathon to address your higher temperature requirements. We stock hundreds of different models and offer quick turnaround, usually 48 hours or less, on custom designed and manufactured units. Mineral Insulated Thermocouples Brochure Download General Purpose Thermocouples Backer Marathon delivers low cost industrial thermocouples and RTDs available in a variety of configurations an types. Types J, K, T, 2 wire, and 3 wire RTDs are standard. Other types are available. We have a large inventory of stock thermocouples for immediate delivery. General Purpose Thermocouples Brochure Download Thermocouple Extensions & Accessories Backer Marathon is pleased to present thermocouple accessories and extensions as part of our line of premium temperature sensors. Backer Marathon has hundreds of different models in stock ready for immediate delivery. Thermocouple Extensions & Accessories Brochure Download |
      | --- | --- |
- [Applications](https://www.backermarathon.com/applications/heaters-for-oems-in-the-plastics-packaging-industry.cfm) [Applications](https://www.backermarathon.com/applications/heaters-for-oems-in-the-plastics-packaging-industry.cfm) 
    - - [Heaters for OEMs in the Plastics Packaging Industry](https://www.backermarathon.com/applications/heaters-for-oems-in-the-plastics-packaging-industry.cfm)
- [Support Center](https://www.backermarathon.com/contact) [Support Center](https://www.backermarathon.com/contact) 
    - - [Distributor Locator](https://www.backermarathon.com/locator/)
          - [Contact](https://www.backermarathon.com/contact/)
          - [Documents](https://www.backermarathon.com/documents/)
          - [Engineering Calculator](https://www.backermarathon.com/engineering-calculator/)
          - [Options](https://www.backermarathon.com/options/)
          - [Join Our Team](https://www.backermarathon.com/application/)
- Search
  
  Search

 Dec 6, 2023 12:00:00 AM

[Melissa Lopez-Barnes](https://marketing.backermarathon.com/blog/author/melissa-lopez-barnes)

Share: [facebook-f icon](http://www.facebook.com/share.php?u=https://marketing.backermarathon.com/blog/www-backermarathon-com-plastic-injection-molding-oem) [linkedin-in icon](http://www.linkedin.com/shareArticle?mini=true&url=https://marketing.backermarathon.com/blog/www-backermarathon-com-plastic-injection-molding-oem) [Twitter icon](https://twitter.com/intent/tweet?url=https://marketing.backermarathon.com/blog/www-backermarathon-com-plastic-injection-molding-oem) [pinterest-p icon](http://pinterest.com/pin/create/link/?url=https://marketing.backermarathon.com/blog/www-backermarathon-com-plastic-injection-molding-oem) [envelope icon](mailto:?body=https://marketing.backermarathon.com/blog/www-backermarathon-com-plastic-injection-molding-oem)

# What Types of Heaters Are Used in Plastic Injection Molding?

![blog-group-collage-injection-mold.jpg](https://marketing.backermarathon.com/hubfs/Imported_Blog_Media/blog-group-collage-injection-mold.jpg)

## **Band, Cartridge, Coil, Strip, and Ceramic Heaters Help Heat Up OEM Applications**

In plastic injection molding, various types of heaters are used to heat the molds and other components of the molding machine. These heaters play a critical role in maintaining the proper temperature of the mold and the plastic material.

 

Today we’re discussing several of the common types of heaters used in plastic injection molding.

 

### **Band Heaters**

 

Band heaters are one of the most common types of heaters used in injection molding. They consist of a metal band or strip that wraps around the barrel of the injection molding machine. Band heaters are designed to provide uniform and consistent heating to the barrel, ensuring that the plastic material is properly melted and injected into the mold. The primary role of band heaters is to ensure uniform and consistent heating of the plastic resin within the barrel.

 

**Importance**: Proper barrel temperature is crucial for melting the plastic resin, allowing it to flow smoothly and fill the mold cavities accurately. Inconsistent heating can lead to defects in the molded parts.

 

### **Cartridge Heaters**

 

Cartridge heaters are small, cylindrical heating elements that are inserted into holes drilled into the mold. They are often used for heating the nozzles and sprue bushings, where the plastic material enters the mold. Cartridge heaters are known for their fast-heating response and precise temperature control. They are responsible for localized heating and maintaining precise temperatures in critical areas of the injection molding process.

 

**Importance**: Cartridge heaters offer rapid response and temperature control. They ensure that the plastic material remains at the correct temperature as it enters the mold, promoting uniform filling and reducing the risk of defects.

 

**Coil Heaters**: Coil heaters are compact and flexible heating elements that are often used in hot runner systems, where they are placed directly in the runner channels or nozzle tips. They can be bent to fit the shape of the mold, providing efficient and even heating to the individual cavities of the mold. Their role is to provide focused and efficient heating to maintain the desired temperature of the molten plastic.

 

**Importance**: In hot runner systems, coil heaters prevent premature solidification of the plastic material in the runner channels. This ensures that the plastic flows smoothly into the mold cavities, reducing the chance of defects like flow lines.

 

### **Mica Strip Heaters**

 

Strip heaters are flat, rectangular-shaped heating elements that are mounted to the mold or other components of the injection molding machine. They are commonly used for applications that require uniform heating across a larger surface area, such as the platens in the molding  machine.

 

**Importance**: Strip heaters are crucial for achieving consistent mold temperatures. They are often used to heat the platens that hold the mold halves together. Proper mold temperature control helps reduce warping, internal stress, and cycle time.

 

### **Ceramic Strip Heaters**

 

Ceramic heaters are known for their high-temperature capabilities and durability. They are often used in applications that require extremely high mold temperatures, such as in the production of certain types of plastics or specialized processes. They can be inserted into the mold to ensure the plastic material remains at an elevated temperature.

 

**Importance**: For specific applications, maintaining high mold temperatures is critical to the quality and performance of the molded parts. Ceramic heaters ensure that the mold remains at the desired temperature throughout the injection molding cycle.

 

**Efficient and Consistent Heat**

 

These heaters collectively contribute to the efficiency and consistency of the plastic injection molding process. They play a vital role in ensuring that the plastic material is properly melted, injected into the mold, and solidified to produce high-quality molded parts. The precise control they offer helps reduce defects and ensures the final products meet the desired specifications.

 

The choice of heater type depends on the specific requirements of the injection molding process, including the type of plastic being used, the desired mold temperature, and the design of the mold and machine. Proper temperature control is essential in achieving high-quality and consistent results in plastic injection molding.

 

## **Backer Marathon Heating Solutions**

 

### **Band Heaters**

 

When heating is required around a nozzle or a pipe, a band heater is the optimal solution for your heating needs. Our current band products are separated in two types: [mica band heaters](https://www.backermarathon.com/files/original/brochure-mica-band-heaters.pdf) and Starflex band heaters. Each type offers different temperature tolerances as well as flexibility and construction options.

 

Our band heaters are computer designed and manufactured to your specifications. Only the highest quality materials are used for optimal performance. Backer Marathon’s stock band heater inventory is constantly growing. We stock a wide variety of heaters right on the shelf that are available for same-day shipping.

 

**Band Heater Features:**

 

- High-temperature oxidation-resistant metal sheath
- Highest grade mica insulation provides excellent electrical insulation at high temperatures and is resistant to moisture
- Clamping band is low thermal expansion stainless-steel construction designed to maintain clamping pressure at elevated temperatures
- Nickel/chromium resistance wire evenly wound for uniform heat distribution and reliable accuracy
- Standard 10” fiberglass leadwires are UL rated and provide protection up to 850°F
- Approximately 1/8” thick

 

### **Starflex Band Heaters**

 

Backer Marathon Starflex is the most rugged, reliable band heater available. [Starflex band heaters](https://www.backermarathon.com/files/original/brochure-starflex-heaters-web.pdf) are the original aluminum body band and are still the industry standard. These heaters are manufactured by hydraulically pressing a high-temperature heating element into a precision-grooved aluminum channel. The heaters are clamped in place with low-expansion stainless-steel straps for intimate contact with the part. The aluminum channel offers low-mass and high-thermal conductivity for fast heat up. These same characteristics provide excellent cool down properties as well. Starflex bands are also available with water cooling, both as a cool-only band and a heat/cool band.

 

They are used on extruders, injection molding barrels, blown film dies, and other applications requiring rugged, long-life heaters. Heaters open completely, allowing easy installation and eliminating the need to remove other items from the barrel. You get the durability of a cast-in heater at a fraction of the cost. They are replaceable, unlike cast in heaters that require replacement of the whole heater.

 

**Starflex Band Heater Specifications:**

 

•   Maximum operating temperature: 650°F

 

•   Maximum voltage: 277 volts per half

 

•   Maximum amps: 30 amps

 

•   Wattage Tolerance: +5%, -10%

 

•   Maximum recommended watt density: 40 watts per square inch

 

•   Maximum diameter: 10 feet

 

We offer prompt service at competitive prices, a three-day expedited service on custom designs, and there is never a minimum order requirement.

 

### **Cartridge Heaters**

 

Backer Marathon is a leading manufacturer of American made [high-watt density cartridge heaters](https://www.backermarathon.com/files/original/brochure-cartridge-heaters.pdf). Our HotRod stainless-steel heaters are the industry standard and offer quality construction, superior heat transfer, and long-life heating solutions up to 1600°F—typically exceeding the performance and durability of others in the market.

 

Through refinements in the swaging process, specially designed cores, careful selection of magnesium oxide fill, nickel chromium resistance wire, stainless-steel tubing, and carefully controlled production processes, HotRods routinely outperform other cartridge heaters in difficult applications. They are available in a wide variety of diameters and configurations. In addition to our swaged heaters, we offer non-swaged heaters for applications up to 800°F, as well as square heaters for milled slot solutions.

 

Choose from our thousands of in-stock heaters for immediate delivery or let the engineers at Backer Marathon design a custom heater for your unique application. Standard manufacturing times are normally less than two weeks.

 

**Cartridge Heater Features:**

 

- High-temperature lead wires for temperatures up to 550°C
- High-impact ceramic cap retards contamination and is suitable for high-vibration applications
- Deep holes in cap prevent fraying of leads when bent
- Nickel/chromium-resistance wire for maximum heater life, evenly wound for even heat distribution
- High purity magnesium oxide fill selected for maximum dielectric strength and thermal conductivity; highly compacted for maximum heat transfer
- 304 stainless-steel sheath for oxidation resistance in a wide variety of environments; 316 stainless steel and Incoloy® are also available
- TIG-welded end disc to prevent contamination and moisture absorption
- HotRods are UL recognized, File #E202904; and RoHS compliant

 

If you have questions about OEM cartridge or replacement cartridge heaters, please [contact us](http://www.backermarathon.com/contact/).

 

### **Coil Heaters**

 

When highly focused heat is required, and a very low profile is imperative, [coil heaters](https://www.backermarathon.com/files/original/Coil%20Heater.pdf) are the best cost-effective option. Coil heaters may be used to concentrate the heat on specific segments, or the coil may be spread to equalize the temperature across the object to be heated. Heaters can normally be coiled and shipped in one working day.

 

**Standard Coil Heater Features Include:**

 

- Internal Type J and Type K thermocouples are available for precise temperature control
- .130 square cross section is standard
- Other lead arrangements are available
- Teflon power leads
- Stainless-steel braid with ground wire
- Stainless-steel sheath
- Nickel chromium resistance wire with highly compacted MgO fill
- Seal-welded end

 

Coil lengths are based on a closed coil. Coils can be stretched for distributed wattage and/or much longer coil lengths.

 

- Sizes are based on a 1.18” extension length
- All heaters are 240V
- All heaters have 36” leads with stainless-steel overbraid and a ground wire
- Heaters are available with and without thermocouple
- All heaters are .13” x .13” square cross section

 

### **Strip Heaters**

 

Backer Marathon strip heaters are manufactured to your custom specifications. [Mica strip heaters](https://www.backermarathon.com/files/original/brochure-mica-band-heaters.pdf) offer a low-profile option for applications of up to 1200°F. Our mica strip heaters are only .156” thick and ideal for plate heating applications. Backer Marathon strip heaters will operate up 900°F or to 1200°F with an optional stainless-steel sheath. This thin, low-mass construction provides fast heat up times.

 

**Mica Strip Heater Specifications:**

 

- Minimum length: 2.5” (consult sales department for maximum)
- Minimum width: 3/4”
- Standard thickness: .156”
- Fold Over: 1/4”
- Maximum sheath temperature: 900°F/482°C
- Mounting Slot: 9/32” x 3/8”
- Terminals: 10-24 x 5/8” post terminals; or 10” high-temperature fiberglass leads
- Recommended maximum wattage: 40 watts/square inch
- Voltage: 480 VAC maximum
- Installation: optimize heater performance by following [these heater installation guidelines](https://www.backermarathon.com/Mica_Heater_Installation_Guidelines)

 

Backer Marathon [ceramic strip heaters](https://www.backermarathon.com/files/original/brochure-ceramic-strip-heaters.pdf) (sometimes called channel strip heaters) are ideal for rugged, high-temperature performance applications. They are available with a contamination-resistant stainless-steel sheath (for temperatures up to 1200°F), with or without mounting tabs, and can be manufactured with post terminals or a variety of lead options. They are bolt-in replacements for many of the Chromalox, GE, Watlow, and other strip heaters.

 

**Ceramic Strip Heater Specifications:**

 

- Maximum temperature: 1200°F
- Maximum watt density: 75 W/linear inch. 120 if two sides in contact with heated part
- Maximum wattage: 120 Watts per inch of heated length; 75 if only one side is contacting the surface
- 1.5” wide, 5/16” or 3/8” thick, up to 72” long
- 5/16” x 1⁄2” mounting slots (center to center = overall length - 3/4)
- Maximum voltage: 300V standard, 480V special
- Maximum amperage (leads): 12 amps
- Maximum amperage (terminals): 20 amps
- Wattage tolerance: +5%, -10%
- Resistance tolerance: +10%, -5%

 

### **Helping OEMs Heat Up**

 

Backer Marathon is the industry leader in production speed and reliable, quality heaters for plastics and packaging, serving OEMs with durable, customized solutions for unique heating needs. Backer Marathon designs, manufactures, and stocks industrial-grade heating elements and temperature sensors.

 

Engineers have direct access to our trained technical experts who have been pioneers in this sector for decades. Our vast array of heaters serves diverse industries and applications—from food and beverage packaging to industrial platens used in compression molders.

 

We believe in hard work, creative engineering, and excellent customer service. Whether you need one piece or one thousand, Backer Marathon is committed to providing you with exactly what you need when you need it. As we innovate and lead the industry with unparalleled engineering and customer service, we look forward to helping you continue to grow with us. Let’s talk about your next project. [Contact us now](https://www.backermarathon.com/contact/) or call us today at 1 (830) 775-1417. We’re excited to collaborate with you. 

 

[Cartridge Heater](https://marketing.backermarathon.com/blog/tag/cartridge-heater), [Silicone Rubber](https://marketing.backermarathon.com/blog/tag/silicone-rubber), [View All](https://marketing.backermarathon.com/blog/tag/view-all)

## Related posts

[![](https://marketing.backermarathon.com/hs-fs/hubfs/mica-band-expandable.jpg?height=200&name=mica-band-expandable.jpg)](https://marketing.backermarathon.com/blog/role-of-injection-molding-equipment-in-plastics-and-rubber-processing?hsLang=en-us)

[Plastics Industry](https://marketing.backermarathon.com/blog/tag/plastics-industry), [ceramic band heater](https://marketing.backermarathon.com/blog/tag/ceramic-band-heater), [mica band heater](https://marketing.backermarathon.com/blog/tag/mica-band-heater), [rubber processing](https://marketing.backermarathon.com/blog/tag/rubber-processing)

## [Role of Injection Molding Equipment in Plastics and Rubber Processing](https://marketing.backermarathon.com/blog/role-of-injection-molding-equipment-in-plastics-and-rubber-processing?hsLang=en-us)

[Matt Brownson](https://marketing.backermarathon.com/blog/author/matt-brownson) 

 Feb 12, 2025 11:00:01 AM

The Role of Injection Molding Equipment in Plastics and Rubber Processing A Closer Look at Mica...

[Read more](https://marketing.backermarathon.com/blog/role-of-injection-molding-equipment-in-plastics-and-rubber-processing?hsLang=en-us)

[![](https://marketing.backermarathon.com/hs-fs/hubfs/Cartridge%20Heater_Backer%20Marathon_%20food-packaging-bottles.jpg?height=200&name=Cartridge%20Heater_Backer%20Marathon_%20food-packaging-bottles.jpg)](https://marketing.backermarathon.com/blog/we-know-cartridge-heaters?hsLang=en-us)

[Cartridge Heater](https://marketing.backermarathon.com/blog/tag/cartridge-heater), [Industrial heaters](https://marketing.backermarathon.com/blog/tag/industrial-heaters), [heating solutions](https://marketing.backermarathon.com/blog/tag/heating-solutions), [OEM partner](https://marketing.backermarathon.com/blog/tag/oem-partner), [electric heaters](https://marketing.backermarathon.com/blog/tag/electric-heaters), [Heater Applications](https://marketing.backermarathon.com/blog/tag/heater-applications), [Plastics Industry](https://marketing.backermarathon.com/blog/tag/plastics-industry)

## [We Know Cartridge Heaters](https://marketing.backermarathon.com/blog/we-know-cartridge-heaters?hsLang=en-us)

[Matt Brownson](https://marketing.backermarathon.com/blog/author/matt-brownson) 

 Dec 20, 2024 4:51:41 PM

We Know Cartridge Heaters And Now You Will Too! As an OEM in need of reliable heating solutions,...

[Read more](https://marketing.backermarathon.com/blog/we-know-cartridge-heaters?hsLang=en-us)

[![](https://marketing.backermarathon.com/hs-fs/hubfs/ceramic-band-heater.jpg?height=200&name=ceramic-band-heater.jpg)](https://marketing.backermarathon.com/blog/ceramic-band-heaters-for-cylinder-applications?hsLang=en-us)

[Industrial heaters](https://marketing.backermarathon.com/blog/tag/industrial-heaters), [ceramic band heater](https://marketing.backermarathon.com/blog/tag/ceramic-band-heater), [cylinder applications](https://marketing.backermarathon.com/blog/tag/cylinder-applications)

## [Ceramic Band Heaters for Cylinder Applications](https://marketing.backermarathon.com/blog/ceramic-band-heaters-for-cylinder-applications?hsLang=en-us)

[Matt Brownson](https://marketing.backermarathon.com/blog/author/matt-brownson) 

 Feb 5, 2025 1:59:02 PM

Ceramic Band Heaters for Cylinder Applications The Heat Behind the Precision When it comes to...

[Read more](https://marketing.backermarathon.com/blog/ceramic-band-heaters-for-cylinder-applications?hsLang=en-us)

#### Products

- [Cartridge Heaters](https://www.backermarathon.com/products/cartridge-heaters/)
- [Band Heaters](https://www.backermarathon.com/products/band-heaters/)
- [Coil Heaters](https://www.backermarathon.com/products/coil-heaters/)
- [Strip Heaters](https://www.backermarathon.com/products/strip-heaters/)

- [Flexible Heaters](https://www.backermarathon.com/products/flexible-heaters/)
- [Nozzle Heaters](https://www.backermarathon.com/products/nozzle-heaters/)
- [Air Heaters](https://www.backermarathon.com/products/air-heaters/)
- [Flexible Tubular Heaters](https://www.backermarathon.com/products/hotset-flexible/)
- [Box Heaters](https://www.backermarathon.com/products/box-heaters/)

#### Support / Site Tools

- [Distributor Locator](https://www.backermarathon.com/locator/)
- [Contact](https://www.backermarathon.com/contact/)
- [Documents](https://www.backermarathon.com/documents/)
- [Engineering Calculator](https://www.backermarathon.com/engineering-calculator/)

- [Options](https://www.backermarathon.com/options/)
- [Join Our Team](https://www.backermarathon.com/application/)
- [Careers](https://www.backermarathon.com/careers)

![Backer Marathon](https://www.backermarathon.com/_img/footer-logo.png)

---

© 2024 Backer Marathon Inc. All Rights Reserved.

![Inc. 5000](https://www.backermarathon.com/_img/logo-inc-5000.png)

Backer Marathon is a US-based heating elements and sensor manufacturer. We specialize in Cartridge Heaters, Band Heaters, Ceramic Heaters, Mica Heaters, Air Heaters, Tubular Heaters, and Thermocouples. We manufacture for OEM as well as stock replacements for popular brands.

```json
{
  "@context" : "https://schema.org",
  "@type" : "BlogPosting",
  "author" : {
    "@type" : "Person",
    "name" : "Melissa Lopez-Barnes",
    "url" : "https://marketing.backermarathon.com/blog/author/melissa-lopez-barnes"
  },
  "dateModified" : "2024-06-20T13:59:38.597Z",
  "datePublished" : "2023-12-06T05:00:00.000Z",
  "headline" : "Plastic Injection Molding",
  "image" : [ "https://marketing.backermarathon.com/hubfs/Imported_Blog_Media/blog-group-collage-injection-mold.jpg" ],
  "mainEntityOfPage" : {
    "@id" : "https://marketing.backermarathon.com/blog/www-backermarathon-com-plastic-injection-molding-oem",
    "@type" : "WebPage"
  },
  "publisher" : {
    "@type" : "Organization",
    "logo" : {
      "@type" : "ImageObject",
      "url" : "https://marketing.backermarathon.com/hubfs/bm-logo-400x100.jpg"
    },
    "name" : "Backer Marathon Inc."
  }
}
```