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Silicone rubber strip heaters are versatile and adaptable heating elements used across many manufacturing and industrial applications. There are several types of silicone rubber heaters that buyers can choose from. The main difference is usually the shape, size, or special features.
Barrier-controlled heaters:
Barrier-controlled heaters are small, powerful silicone rubber heaters that heat surfaces up to 80°C. They are fitted with a built-in thermal barrier that protects internal components such as the thermocouple and wiring. The thermal barrier also allows the slide switch to control the heater's on-off function. These heaters are typically used in food warmers or vending machines.
Bulkhead-entry heaters:
Bulkhead-entry heaters are high-powered silicone rubber strip heaters that have holes in the bulkhead to allow wire passes through. They can heat surfaces between 90 and 175°C. The heaters are integrated with a thermocouple or other types of thermostats for better temperature control. Users can also customize the hole size according to specific needs. Generally, bulkhead-entry silicone rubber heaters are used in the chemical processing field, oil and gas, and other industrial applications.
Core-controlled heaters:
Core-controlled silicone rubber strip heaters have a precast thermocouple embedded in the heater. This device controls the core temperature of the heater. The core temperature can range between 80 and 200 °C or more, depending on the real requirements. Additionally, core-controlled silicone rubber heaters can be made in several different configurations to suit specific applications and preferences. Because of these features, core-controlled silicone heaters are widely used in plastics, packaging, and printing industries.
Silicone rubber pads with plugs:
This type of silicone rubber strip heater comes with different kinds of plugs. For example, buyers will find silicone rubber heaters with UK 3 pin plugs or US 2 pin plugs. Other options include a bare wire for user-installed plugs or an MPT fitting. Depending on the specific needs and requirements, customers can choose the one that has the ideal utility for them.
When looking for silicone strip heater specifications, it is essential to look at the main features to better understand how to use them safely. Different heaters have voltage ratings ranging from as low as 6V to up to 600V. They also have varied watt densities and maximum temperatures. Power outputs are more significant when measures are smaller. For instance, a one-inch heater would have a greater power output than a three-inch heater. The maximum temperature varies from heater to heater. Generally, they can reach up to 200 °C. Silicone heaters also have different sizes and shapes depending on the application they are meant to serve.
Silicone heaters come with different voltage ratings. For instance, a 12 volt silicone rubber heater strip is commonly used in the automotive industry. More specifically, it is used in car windshields to prevent fog from forming. Another common application is for preheating battery packs in electric vehicles. Because electric vehicles run on batteries, it's essential to ensure the battery is functioning properly. On cold temperatures, the silicone heater helps soften the viscosity of the liquid within the battery ensuring smooth circulation.
Materials used to make silicone heaters are soft and stretchable, making it easy to mold into different shapes and sizes. Furthermore, the material is able to carry heat evenly eliminating uneven spots that could cause damage.
Despite their longevity, silicone rubber heaters can be damaged or worn out. Here are some maintenance tips to help keep the heaters in good condition:
Silicone heating strips are useful in many industries. Here are some applications of silicone heater strips:
Food and Beverage
Silicone heaters are useful in maintaining food temperature. Heated plates with these strips can keep food warm on buffets. Beverage industries can use silicone rubber heaters to maintain the temperature of liquids in pipes and tanks. Moreover, heaters can assist with the quick melting of raw materials such as chocolate and butter.
Medical
Medical devices should always be at specific temperatures for precise readings. Therefore, silicone rubber heaters can assist in controlling the temperature of medical apparatus. Additionally, silicone heaters can be employed in diagnostic equipment and laboratory devices like sample incubation and carbon dioxide incubation.
Flexible Packaging
Packages made of unique flexible materials that must be constantly heated are ideal for silicone rubber heaters. These heaters are lightweight, low-profile, and compact. They can quickly heat the package without adding weight or bulk. Moreover, they can be used on both the inner and outer sides of the package. Additionally, silicone rubber heaters can be used in flow wraps, vertical form-fills, and rotatory and slant-down funnels.
Construction
In construction, silicone heaters can be used to increase the temperature of various building elements. For example, they can heat surfaces such as pipes and substrates. As a result, they can facilitate construction in cold weather. Besides, silicone rubber heaters can aid in maintaining the temperature of materials like adhesives, sealants, and coatings during application. They can also be used to prevent condensation on cold surfaces. This will enable the installation of warm air diffusers and the secure processing of electronic components.
Textiles and Nonwovens
Textile and nonwoven industries can use silicone heaters to dry and warm fibers. They can also be used to stabilize and bond membranes. Moreover, silicone heaters can be used in filter presses and fiber straws. Besides, the heaters can stabilize the temperature during processing in extrusion and mold.
Automotive
Automotive industries can use silicone rubber strip heaters for defrosting or demisting windows. Also, they can heat seats, steering wheels, and sun visors to increase comfort when driving. Besides, these heaters can be applied in underbody and engine bay components for de-icing, preventing heat loss, and keeping battery warm.
3D Printing
Silicone heaters are useful in 3D printing applications to keep the print bed and hotend at a stable temperature. These strips can heat quickly and evenly the print bed to reduce warping and adhesion issues and improve heating for fast preparation time.
When choosing silicone rubber strip heaters for commercial use, buyers need to look for the following features:
Wide range of options
More applications are possible with a wide selection of sizes, shapes, and power outputs. Different levels of versatility are provided by combinations of variable voltage, density, temperature, and thickness.
Fast heat-up times
Within an hour, many silicone heaters can reach maximum temperatures. Quick heat-up times mean less energy consumption and faster processing times.
Temperature ranges
The optimum performance of silicone rubber heaters occurs within specific temperature ranges. This can vary for each model from -60°C to +200°C or even higher.
Heating uniformity
Even heat distribution is crucial for effective performance. Heating elements are carefully arranged to minimize temperature differences to achieve uniform heat distribution across the entire surface area.
Safety features
Overheating, short circuits, and other electrical hazards can cause risks. Buyers need to look for silicone strip heater manufacturers that incorporate safety features like thermal cut-offs, fuses, or circuit breakers to prevent electrical hazards and overheating risks.
Custom designs
In terms of voltage, power, temperature, and size, custom solutions are available. To develop models that fulfill particular specifications, buyers can collaborate with engineers to discuss their unique needs.
Q: What are the benefits of using a silicone rubber heater strip?
A: The silicone rubber strip heater provides a high power density heating element for numerous applications. These heaters are lightweight and provide a flexible heating solution. They are resistant to moisture, chemicals, and harsh environments.
Q: Are silicone heaters safe?
A: Yes, silicone heaters are safe. They are designed to be safe with overheat protection, UV resistance, and chemical resistance. However, users need to follow the manufacturer's instructions for safe use.
Q: Can silicone heaters be cut to size?
A: No, it is not advisable to cut silicone heaters to size. Heating elements are manufactured to specific shapes and sizes. Cutting them to any desired shape may affect their performance and safety.
Q: Can silicone heaters be made in custom sizes and shapes?
A: Yes, one of the benefits of silicone heaters is that they can be made to custom shapes and sizes. Businesses can request silicone heaters with custom configurations for their applications.
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