Microchannel Condensers

  • MICROCHANNEL CONDENSERS

    Aluminium microchannel condensers with advanced design, superior performance, and excellent corrosion resistance

    Microchannel heat exchanger

INNOVATIVE HEAT TRANSFER TECHNOLOGY

Our range of microchannel condensers comprises models with horizontally- or vertically-oriented multiport tubes, in single or multiple pass design, suitable for use with various refrigerants. In addition to a wide span of dimensions, the customer may choose from various combinations of multiport tubes, fin types and fin pitches, connections, mountings, and protective coatings.

The patented innovation of microchannel condensers incorporates vertical microchannel tubes to enhance condenser operation, avoid oil return issues, and ensure predictable coil performance. Unlike microchannel coils with horizontal tubes, the lower header serves as a mini-receiver to reduce critical refrigerant charge issues and provide easier system charging. An integral baffle assures proper coil operation and liquid refrigerant return.

Compared to finned tube condenser designs, our microchannel condensers are a robust design with major technical benefits. With proven field experience, we offer many competitive advantages for OEM equipment and new applications.

Equipment designs incorporating advanced microchannel condensers span a wide range of systems designs, including air-cooled chillers, heat pumps, condensers, and rooftop systems.

  • Efficient condensate drainage and advanced frost management
  • Up to 50% higher capacity compared to conventional microchannel evaporator designs, enabled by a multi-pass flow arrangement
  • Intermediate gas/liquid phase separation
  • Hydrophilic coating to accelerate condensate removal

PRECISION ENGINEERING MEETS SUPERIOR CRAFTSMANSHIP

Precision engineering and expert craftsmanship define every microchannel coil we produce. From initial design to final assembly, each component is developed with performance, reliability, and application-specific needs in mind. Our approach combines advanced technology, flexible design capabilities, and rigorous quality standards to deliver coils that consistently outperform.

  • Every Kaltra coil is designed and built to meet the most demanding industry standards
  • Engineered to integrate seamlessly into OEM systems and retrofit applications
  • Extensive range of microchannel tube profiles, fin pitches, and headers for precise, application-specific coil design
  • Not limited by standardized geometries, Kaltra’s component library enables performance optimization, application flexibility, and space-efficient solutions
  • Automated manufacturing processes guarantee consistent quality and dimensional precision across every production batch
  • In-house R&D, advanced manufacturing lines, and experienced team ensure each product exceeds performance expectations
  • We combine cutting-edge simulation, custom tooling, and material science to achieve unmatched quality

WORLD-CLASS PRODUCTION AND QUALITY CONTROL

Kaltra’s commitment to excellence is built into every stage of coil production. With stringent quality control, advanced manufacturing technologies, and global field-proven reliability, we ensure each coil meets the highest standards for durability, precision, and performance.

  • Brazing precision with advanced CAB furnace technology: Precision-controlled brazing ensures strong, uniform joints
  • Dimensional and leak testing of every item: Every coil is tested for precise dimensions and leak-free performance
  • Smart traceability system: Complete traceability from raw materials to final delivery
  • Lowest warranty claim rate in the industry: Industry-leading reliability with a failure rate lower than 0.075%
  • >99% on-time delivery accuracy backed by intelligent logistics system
  • 10-year extended warranty options
  • Trusted globally with more than 8 million coils installed (2024)
Selection software

SELECTION SOFTWARE

MCHE selection software includes condenser, evaporator, heat pump, and water coils, making it a complete selection and calculation tool for refrigeration professionals.

The software provides selections and ratings for microchannel heat exchangers which enables the user to select the best-suited product based on several deciding parameters such as heat exchanger application, cooling capacity, refrigerant, evaporation and condensation temperatures, airflow and air temperature and other critical variables in refrigeration systems.

PRODUCT SPECIFICATIONS

Max width [mm]

50 … 6000

Max height [mm]

50 … 2000

Tube width [mm]

12/16/20/25/32/36

Manifold diameter [mm]

16/20/25/30/32/38/42/50

Fin types

FLAT/LOUVERED

Fin pitches [FPI]

10/16/18/19/21/23/24/BY REQUEST

Design pressure [bar]

32/45

Refrigerants

HFC/HFO/NATURAL

Protective coatings

E-COATING/TCP-COATING/HYDROPHILIC

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