Hot nozzles

Hot nozzles are used in hot-channel forms at the ends of the systems.

Application
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  • Food industry
  • Footwear industry
  • Furniture industry
  • Packaging industry
  • Plastic industry (molds)
  • Automotive industry (injection molding machines, molds)

Characteristics
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  • Power: max. 25 W/cm2 (high power compared to a small area) *
  • Voltage: according to customer order*
  • Operating temp: 500oC*
  • Dimensions: according to the customer order*

 

*The values (parameters) are examples and do not constitute an offer within the meaning of art. 66 of the Civil Code. Each heater is designed individually.

Technology
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Advanced production technology and high quality materials allow to make special-purpose heaters. Their power and dimensions cannot be achieved in the standard production process.

Technological processes
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  • Cutting the pipe
  • Winding the resistance wire
  • Backfilling the heating element
  • Welding the bottom covering the pipe
  • Rolling
  • Forming the heater
  • Sealing
  • Current connections
  • Design
  • Making a winding core

 

General structure
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Hot nozzles are made of stainless steel AISI 304 and AISI 321 and beryllium bronze. Thanks to the applied production technology, they achieve high power in relation to the heating surface. The use of the highest quality materials ensures high precision and durability of the product. Subjecting the nozzles to appropriate technological processes guarantees a high operating temperature, and the additional use of a sensor allows to achieve a precisely defined temperature and protects the product against damage.

 

Characteristics of the elements:

Nickel-chromium resistance wire, properly compacted with high quality magnesium oxide;
Current outlet in the form of a copper conductor in a PFA coating or a nickel conductor in a fiberglass braid;
Possibility of installing a temperature sensor (type K thermocouple, type J thermocouple);
Cold zones (non-heated) depending on the diameter of the heater (min. 30 mm from the wiring side).

Advantages and Benefits
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  • Simple, compact design
  • Energy saving
  • Material saving
  • Balanced flow
  • No intensity in the molding
  • Good thermal insulation
  • Uniform temperature distribution
  • Quick start
  • No additional operations
  • Faster cycle
  • 100% integrity
  • Optimizing the heater load
  • Optimized mold surface temperature
  • Less need for mold cooling
  • Less maintenance needed
  • Fully assembled system
  • No thermal expansion

Possibility of regeneration of damaged nozzles
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We regenerate all types of hot nozzles.

Examples of types of hot nozzles

Current outputs
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– PTFE sheathed cables

– Fiberglass braided cables

– Wires in fiberglass sheath

– Wires in the pipe

– Steel braided cables

Temperature sensors
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Temperature sensor

In coil heaters it is possible to use a temperature sensor:

  • type J thermocouple  (up to 650°C)
  • type K thermocouple (up to 1000°C)