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About Us
Penny Grow has established itself as the go-to source for breaking technology services in wholesale and retail banking, capital markets, and insurance.
Established in 1999 & Pioneers in hard chrome surface treatments, developed infrastructure and skill base towards various type of plating surfaces including helical one, Today SunIndia is one of the leading reliable companies to trust for Chrome surface applications.
When it comes to the science of best range of industrial immersion heaters, SunIndia present smart, sturdy and sustainable heating solutions with vide range of tubular heater, immersion heater & coil heater of unmatchable experience and expertise for applications in Industries across the spectrum. We manufacture wide range of quality Heating elements for Plastic & Other Allied Industries.
|| We have a spacious factory essential for the production unit situated in Greater Noida, Uttar Pradesh India from where we manufacture and supply a large range of Immersion heaters.
We are a vertically integrated manufacturing and service company where starting from Design and Engineering of products to manufacturing of industrial components, assembly, testing and final finishing and packaging is done within our manufacturing facilities. This helps us in providing our customers with Top Quality, Competitively Priced Products delivered On Time to the customers. With sound technical expertise, large resource pool & experience manpower our company continues to maintain & exceed standards in terms of quality, customer satisfaction and timely delivery that are demanded by the process industries that we serve from so many years. A team of technically sound & dedicated engineers supported by well build infrastructure, we are committed to perform continual important role in polymer, plastic, injection molding and other critical manufacturing sectors that demands quality product and after sales services.
General purpose industrial heater, customized immersion heater, mica & ceramic band heaters, immersion, art ridge, chemical, water, air, casted heater, tubular, finned air heaters, cartridge heaters, immersion heaters, bobbins immersion heaters, alkaline, porcelain heaters, strip finned heaters, heating elements, thermocouple, ceramic band heaters, mica band heaters, oil heaters, air heater, Heat Tracing Cables and Thermocouple Cables. We are constantly exploring ways to improve our products together with maintaining “Quality and Customer Satisfaction” that is our prime objective. Recently, Sunindia also took over the manufacturing and technology rights of Alliance Heaters which was into developing and supply of heaters since 2007 having a large base of satisfied customers.
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Our Leadership Team

Mr. Sunil Kumar
Business Head
Products & Services

Hard Chrome Plating Service
Product Detail

Hard Chrome Plating Service
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Immersion Heaters
Product Detail
Immersion Heaters
Immersion heaters are a fast and efficient way of heating up various liquid solutions in processing equipment, large tanks and containers in many industries. Heating up liquids using direct heat transfer allows for the liquid medium to quickly reach the desired temperature using electric heaters. This application is commonly used in chemical processes, large petrochemical containers as well as large water containers that require fast heat up time. With minimal maintenance requirements, immersion heaters are an excellent solution to rapid heating in almost any industrial environment.
Flanged immersion heaters are high capacity electrical heating units made for tanks or pressurized vessels. They consist of multiple tubular heaters formed into hairpin and welded or brazed to flanges. The heating elements could be made of copper, stainless steel or Incoloy sheath. Variety of flange materials and shapes can be made available as per customer’s request. Various types of electrical protection housing, thermocouples and high limit switches can be incorporated.
Flanged immersion heaters can be used in different applications. In order to meet the heating requirements of a specific application and have a safe operation in the environment within which a heater operates several factors should be taken into consideration in the design of flanged immersion heaters.
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Finned Tubular Heaters
Product Detail

Finned Tubular Heaters
Finned tubular heater are the most common type of heating elements used for heating air and other gases. The fins along the tubular length assist in even heat dissipation. All elements have mild steel fins copper brazed to the tubular heating element sheath unless otherwise specified.
Duct heaters use fin tubular elements within its design to help reduce the watt density. It also allows for more consistent air flow streams within the duct and increases the life longevity of the elements.
In applications where tubular heaters are exposed to forced convection, placing fins around tubular heaters increases their surface area and thus improves their heat transferring capacity. Finned tubular heaters, compared to regular tubular heaters, run at lower surface temperatures for the same watt densities when placed in identical air streams.
Despite their advantages, finned tubular heaters are not recommended for applications where outlet air temperatures exceed 600°F.
The physical characteristics of a finned tubular heater play a major role in the effectiveness of its heat transfer.
Threaded fittings, if required, are the standard mounting attachments supplied with finned tubular heaters. These fittings are brazed or crimped onto the heaters. For special applications, finned tubular heaters can be made with mounting brackets that have special designs.
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Porcelain Heaters
Product Detail




Porcelain Heaters
Manufactured from high temperature bearing insulators, Porcelain Heaters offered are used in various industries. The Antique Porcelain Heater contains elements that are exposed partially in air for better transmission of heat. Porcelain Heater is extensively used in ovens, tanks where draining cannot be done to change the heaters. The Porcelain Heaters offered by us are known for their high precision, performance and durability. Porcelain Heater is constructed using several refractory ceramic blocks assembled together to the required length. The Nichrome wire heating element is inserted into the ceramic blocks, with a terminal block at one end.
This assembly is then inserted into a pre-assembled special protection tube, when used in liquid immersion and gas application. However, porcelain heaters can also be used in direct air-heating application without the protection tube.
FEATURES:
- Offers a large area to heat liquids or semi-solid materials like wax, fats, oil and bitumen
- Suitable for indirect heating of gases and liquids, where it is inserted into a pocket or protection tube in the process tank, wherein, it can be repaired or replaced without draining the process tank
- Wide range of lengths, voltages and power is available to meet customers’ specific requirement
ADVANTAGES:
- Simple and low-cost installation
- Ease of maintenance and repair
- Energy efficient as 100% of heat generated is within the solution
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Flexible Tubular Heaters
Product Detail

Flexible Tubular Heaters
The Flexible Tubular Heaters is latest innovation for Heating Manifolds in the most efficient manner. Easiest handling, simple assembly, improved thermal performance and the simple storage are some of the crucial advantages of the Flexible Tubular Heaters over the Traditional Manifold Tubular Heating Elements. Flexible Tubular Heaters eliminates costly downtime associated with waiting for a custom bent tubular heater. Flexible Tubular Heater is your best choice for immediate, durable, high performance replacement heaters.
The Flexible Tubular heaters compress into the groove and provide excellent heat transfer. Straight lengths available Ex-Stock eliminate costly downtime associated with waiting for custom bent tubular heaters. Engineered with a robust design incorporating greater thermal mass, our Flexible Tubular Heater is user-formable with a flexible solid casing that stays in the groove, yet is easy to install.
FEATURES:
- Easy installation with a uniform finish
- Can be formed by hand
- Stored in a straight condition to save storage space
- No special installation tools required
- Ground Breaking Technology ensures industry leading heat transfer
- Up to 75% sheath contact with Round and Square section heaters when recommended groove geometry is followed
- Rapid heat-up times
- Minimal temperature difference between heater sheath and heated tool
- 3-dimensional groove geometry possible
- Industry’s smallest bending radius
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Mini Coil Heaters
Product Detail

Mini Coil Heaters
Mini Coil Heater is manufactured in Two Standard Round Diameters of 1.5mm and 1.8mm. The Mini Coil Heater is swaged and compacted to these diameters and fitted into special clamps to tighten over circular parts for heating purposes.
Mini Coil Heater is manufactured in Two Standard Round Diameters of 1.5mm and 1.8mm. The Mini Coil Heater is swaged and compacted to these diameters and fitted into special clamps to tighten over circular parts for heating purposes. Sheath material available is Chrome Nickel Steel. The Flat diameter of 1.3 mm x 2.3 mm can also be made which is tightly coiled on a heat-conducting precision tube and encapsulated and thermally insulated by an outer lathing part.
The Mini Coil Heater clamping style is designed to save hours of downtime in moulds. The Mini Coil Heater is equipped with a special cover for easy fitment over circular parts.
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Ceramic Band Heaters
Product Detail


Ceramic Band Heaters
Ceramic Band Heaters were developed to meet industrial requirements for high-temperature long-lasting heaters. They are ideally suited to comply with today’s new resins, which call for ever-increasing process temperatures.
An additional advantage of the Ceramic Band Heaters is that they transfer heat through conduction and radiation. This makes their tightness on barrels less critical; thus they are less prone to thermal expansion problems.
Theoretically, there are no restrictions on the diameter that ceramic band heaters can attain; however, because these heaters utilize ceramic tiles that are available only in specific lengths, the width of these heaters falls within a certain incremental range of sizes.
Advantages:
- Built-in insulation minimizes the unwanted changes in temperature along the barrel
- Heat transfers through radiation, conduction, and convection, so a perfect fit is not required compared to other band heaters.
- Heat transfers are not affected by irregular surfaces or a loose fit
- Because they operate at higher watt densities, they can be used in wider increments
- The number of bands used can be reduced with simplified wiring
- The heater is safer with the cooler external surface – over other band heaters
- The flexible design allows easy installation and removal
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Ceramic Die Heaters
Product Detail

Ceramic Die Heaters
Ceramic Die Heaters are manufactured in two half’s & provided with spring loaded clamping system to provide an excellent grip of the heater mounted vertically. Heaters are provided with inside cover to protect against frequent dismantling of dies.
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Energy Saving Band Heaters
Product Detail
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Energy Saving Band Heaters
Energy Saving Ceramic Band Heaters are Specifically designed and engineered to meet the ever increasing demand for energy conservation and to improve operation efficiency capable of generating higher temperature essential to process today’s high temperature resins.
Energy Conservation is achieved by using 1″ thick Ceramic fiber insulating blanket on the outer surface increasing the overall outer diameter by 2″(Minimum Length Required is 4″). Reducing power consumption upto 30% because of low thermal conductivity of the ceramic fiber insulation, the external surface temperature of the insulation plus ceramic band heater is approximately 80°C while running the inside surface temperature at 300°C
FEATURES:
- Saving Energy Up to 30%
- Reduce Wattage of Heater
- More Uniform Heating
- Less Downtime increases Productivity
- Reduced Preheating time of Machine
- Heater cost is recover in shorter time
- Cool working atmosphere for operator
- Overall Outer diameter increases by 2″ (50 mm)
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High Density Cartridge Heaters
Product Detail

High Density Cartridge Heaters
High Density Cartridge Heater can be considered “Component Heaters” that are used to heat up many different applications. Primarily used in moulds, dies & sealing bars, this Cartridge Heating Element fit snug inside a cavity and helps heat solids by reaching high temperatures. High Density Cartridge Heater has the versatility of being able to carry thermocouple inside to help control temperatures of the heater more accurately. Various diameters allow for the Cartridge Heating Element to be used in any cavity and can be custom designed with any cold section. Lead wires extend from the end to your controls.
High Density Cartridge Heater distinguishes itself by its high compression and therefore especially efficient heat emission. That’s why such Cartridge Heating Element is produced with a ground surface for a H7 fit.
The construction of High Density Cartridge Heater positions a nickel-chrome resistance wire precision wound around a magnesium oxide core. It is inserted into a Stainless or Incoloy tube locating the resistance wire close to the sheath. The core is centrally positioned within the tube and filled with magnesium oxide powder. Nickel pins pass through the centre of the core making contact with the resistance wire at both ends. The whole assembly is highly compacted by a swaging operation and thus ensuring excellent heat transfer to the external sheath.
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Sealed Mica Nozzle Heaters
Product Detail

Sealed Mica Nozzle Heaters
Sealed Mica Nozzle Heaters are hermetically sealed for liquid plastic during the manufacturing process. The connection between the heating element and the leads is protected by a special fitting made of 1 mm thick brass or stainless steel, without welding which allows a high mechanical strength in the most delicate area of the heater.
During manufacturing, the Sealed Mica Nozzle Heaters are submitted to extremely high pressure that ensures high insulation, excellent thermal exchange, lack of internal voids, perfectly smooth contact area for an optimum and uniform heat transfer to every part of the nozzle.
The Sealed Mica Nozzle Heaters are available in either Brass or Stainless Steel versions, depending on the application. It is recommended to use stainless steel nozzles where the molding or extrusion of PVC is involved as stainless steel will withstand the corrosive fumes far better.
The Sealed Mica Nozzle Heaters are a rugged product that resists very well to wearing and shocks. The inner profile is perfectly round, providing a perfect coupling with the nozzle. Size of the connecting cap is minimal, giving extremely limited overall dimensions. Power connection is performed by a Standard metal braided cable with Length of 1000 mm.
A thin layer of the “high” thermal conductive MI material is used to electrically insulate the element wire from the inside diameter of the heater sheath.
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Coil Type Nozzle Heaters
Product Detail




Coil Type Nozzle Heaters
Coil Type Nozzle Heaters are capable of performance under the most adverse conditions. Highly recommended for processing high-temperature resins to eliminate premature failures due to burn out/ process material leakage.
Heat transfer is based on conduction as well as on radiation principle, which not only improves the thermal efficiency but easy to assemble on nozzles as no pressure on heating surface is essential. Even unskilled operator can fit the heater with no risk of failure of the heater.
Coil Type Nozzle Heaters are specially designed to prevent the failures of heaters against the leakage and contamination of plastic material at nozzle position. This heater can meet the higher temperature requirement prior to molding at the nozzle position.
Stainless Steel Sheath Tubular Heating Elements in Round / Flat Sections are used as Heat Source. Low thermal expansion steel covers with suitable Mounting Brackets houses these Tubular Heating Elements.
The Coil Type Nozzle Heaters are typically used to Heat up the Nozzles of Injection Molding Machines.
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Mica Band Heater
Product Detail


Mica Band Heater
Mica Band heaters are efficient and economical solutions to the heating requirements of many applications. Mica Band heaters can attain a maximum sheath temperature of 900°F, but with different electrical termination styles, clamping mechanisms, and ability to accommodate holes and cutouts, mica band heaters are successfully used in many applications, but are mostly sought for in the plastics industry.
The Mica Band Heaters made by Anupam utilizes different types of Top Grade Mica. The thickness of each mica layer is carefully selected in order to balance between the insulating characteristics of mica and the ease of heat transfer from the heating core to the machine barrel.
The resistance wire ribbon used in the mica band heater is not restricted to the capabilities of Nichrome wire. Different alloys are considered for different applications. The internal winding is carefully designed to ensure uniform heat distribution throughout the band heater. To maximize the surface-to-surface contact, our mica band heaters are carefully rounded and formed to optimize the grip on a machine barrel. The external metallic protective sheath of Anupam’s Mica band heaters is made of a special alloy, which expands less than the barrel when heated. This difference in thermal expansion makes the heater grip the barrel firmly once it is energized. This improves heat transfer which extends the life of the mica band heater.
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Aluminum Cast Band Heater
Product Detail

Aluminum Cast Band Heater
The liquid cooling function of the Cast Band Heater is of primary importance in maintaining the proper temperature of the barrel in the extrusion process. Extrusion machines differ from injection molding machines in that they often require heating and cooling. Cooling is required on extruder barrels to offset heat generated by frictional shear as the screw pump pushes plastic melt through the barrel and die head.
The Cast Band type comes with Water Cooling system & without Water cooling system. The Cast Band Heaters uses aluminum, an excellent heat conductor, to deliver a very uniform heat pattern on the barrel.
All Aluminum Cast Band Heaters are customized. The Tubular Heating element is embedded in the Aluminum Cast Band Heater & machining is to be done to get the required size.
High Thermal Conductivity provides uniform temperature. The main application of these heaters is in the Extruders.
ADVANTAGES:
- Gravity moulding ensures an excellent material homogeneity and thus a perfect heat transfer
- Constant surface temperature is achieved through appropriate forming
- As this is indirect heating, the heating resistance is protected. The solid or fluid to be heated is not in contact with the resistance
- High protection against corrosion
- The end-to-end control of the design and production chain allows us to deliver a product which suits your process perfectly
- Resistance in severe industrial surroundings (impacts, vibration)
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