What Determines Cartridge Heater Prices?

Cartridge heaters are efficient heating elements used for heating liquids, tanks, or metal blocks. Commonly known as “immersion heaters,” these units are customizable in size and compatible with 220V systems. But a frequently asked question arises: Why do cartridge heater prices vary so much? This article outlines the technical and commercial factors that influence pricing.

What Is a Cartridge Heater?

A cartridge heater consists of a resistive coil inside a stainless steel tube, insulated with magnesium oxide. It includes connection terminals or heat-resistant cables. 220V versions are standard, but 110V and 380V models are also available.

Common Applications

• Water and oil heating systems
• Industrial tanks and boilers
• Chemical fluid heating
• Food processing lines
• Localized surface heating
• Plastic processing equipment

Factors Affecting Cartridge Heater Pricing

1. Wattage

Heating power ranges from 500W to 6000W. Higher wattage requires longer heating coils and more materials, thus increasing the price.

2. Dimensions

Length and diameter vary based on application. For example, a 12mm x 500mm heater costs more due to additional materials and labor.

3. Cable Type and Length

Standard cables include silicone and fiberglass. For demanding conditions, PTFE, armored, or shielded cables may be required, increasing costs.

4. Mounting Options

Heaters can come in immersion type or with threaded/flanged mounts. Flanged models require advanced fabrication, impacting price.

5. Material Grade

304 and 316 stainless steels are common. 316L or nickel alloy versions are pricier due to enhanced chemical and heat resistance.

6. Voltage and Phase

220V heaters are ideal for single-phase systems. 380V three-phase options involve more complex wiring and design.

7. Order Quantity

Bulk orders reduce unit price. Single custom heaters cost more due to setup and manual production requirements.

Why Are 220V Cartridge Heaters Preferred?

Standard in many countries, 220V heaters require no additional converters and are easily integrated into existing systems. Mass production reduces unit cost and lead time.

Are Cartridge and Immersion Heaters the Same?

Generally yes. Immersion heater is a type of cartridge heater used in liquid heating. Application-specific materials are required depending on the fluid type.

Average Price Ranges

• 500W – 1000W: 5 – 10 EUR
• 1500W – 3000W: 10 – 25 EUR
• 3500W – 6000W (custom): 30 EUR and up

Note: Prices vary by supplier, materials, and order volume.

Cartridge heater pricing depends on various factors including power, material, dimensions, cable type, and order volume. Accurately identifying your heating needs and providing detailed specifications to the manufacturer is key to obtaining the right heater at the best value.