Refrigeration Units

Air-cooled units built with German Bitzer low-temperature semi-hermetic screw compressors for duties from -35°C to -20°C; single, dual and triple parallel configurations with economizers, oil separators and oil coolers for stable performance.

Key Features

  • German Bitzer low-temperature screw compressor: high efficiency, long life, low vibration and low noise
  • Fully configured unit with world-renowned refrigeration components and control elements for high reliability
  • Multiple safety protections including reverse rotation, overheating, overload, discharge temperature, low oil level and high/low pressure
  • Equipped with an economizer to significantly boost low-temperature cooling capacity
  • 50–100% multi-stage capacity control that adapts to load changes and effectively cuts energy use

Applications

  • Meat freezing
  • Seafood quick freezing
  • Industrial freezing
  • Low-temperature warehousing
  • Ice-making industry
  • Quick-freeze processing
  • Logistics cold chain

Product Overview

Medium/low-temperature screw units built with German Bitzer low-temperature semi-hermetic screw compressors, widely used in low-temperature rooms, blast freezers, ice-making equipment and freezing processing; evaporating temperature -35°C to -20°C using R22.

Model Naming

Model numbers begin with ANC, e.g. ANCDJ25DF: ANC is the brand identifier, DJ denotes a low-temperature single screw unit, 25 indicates horsepower, D denotes low temperature, and F denotes air-cooled condensing (S for water-cooled); dual parallel series include 2BL and triple parallel series 3BL.

Unit Configuration

Low-temperature screw compressor, oil separator, oil cooler, oil circuit components, condenser (water-cooled units only), liquid receiver, liquid-line filter, sight glass, economizer assembly, suction filter, pressure protectors, pressure gauges and control box (PLC + touchscreen).

Product Features

German Bitzer low-temperature screw compressor with high efficiency, long life, low vibration and low noise;

Fully configured with world-renowned refrigeration components and control elements for high reliability;

Multiple safety protections including reverse rotation, overheating, overload, discharge temperature, low oil level and high/low pressure ensure reliable operation;

Equipped with an economizer to significantly boost cooling capacity in low-temperature duty;

Multi-stage capacity control (50–100%) adapts to load changes and effectively reduces energy use.

Applications

Meat freezing, seafood quick freezing, industrial freezing, low-temperature warehousing, ice-making, quick-freeze processing and logistics cold chains.

Full Technical Specifications

See the technical specification table below (compressor parameters, cooling capacity and power matrix, installation parameters and condenser parameters).

Technical Specifications

Voltage

380V/50Hz/3Phase

Condenser Parameters

ModelTypeFan Power (kW)Pump Power (kW)Gas Inlet (mm)Liquid Outlet (mm)Overall Dimensions (mm)
ANCDJ25DFHigh-efficiency energy-saving evaporative type1.100.75DN80DN501350*1800*2880
ANCDJ30DFHigh-efficiency energy-saving evaporative type1.100.75DN80DN501350*1800*2880
ANCDJ40DFHigh-efficiency energy-saving evaporative type2.200.75DN80DN501350*2300*3080
ANCDJ50DFHigh-efficiency energy-saving evaporative type2.200.75DN80DN501350*2310*3080
ANCDJ60DFHigh-efficiency energy-saving evaporative type2.200.75DN80DN501350*2310*3080

Refrigerant

R22

Compressor Type

Screw compressor (Bitzer)

Power Range

25P~60P

Electric Control System

PLC HMI

Capacity Control

50%~100%

Suitable Room Temperature

-35℃~-20℃

Compressor Parameters

ModelCompressor ModelDisplacement per Unit 50/60Hz (m³/h)Compressor Quantity
ANCDJ25DFHSN5353-25100/1211
ANCDJ30DFHSN5363-30118/1421
ANCDJ40DFHSN6451-40140/1681
ANCDJ50DFHSN6461-50165/1981
ANCDJ60DFHSN7451-60192/2321

Cooling Capacity & Power

Model-35°C Capacity (kW)-35°C Power (kW)-30°C Capacity (kW)-30°C Power (kW)-25°C Capacity (kW)-25°C Power (kW)-20°C Capacity (kW)-20°C Power (kW)
ANCDJ25DF27.0021.3033.6022.2041.2023.1049.8524.00
ANCDJ30DF31.7024.5039.4025.6048.2026.7058.1027.80
ANCDJ40DF36.3528.6045.3029.7055.5030.8067.0031.90
ANCDJ50DF43.3032.1053.8033.5065.7034.9079.2036.30
ANCDJ60DF51.9041.2065.1042.7080.2044.3097.4046.00

Max Running Current (A)

ModelMax Running Current (A)
ANCDJ25DF52
ANCDJ30DF58
ANCDJ40DF65
ANCDJ50DF79
ANCDJ60DF98

Unit Installation Parameters

ModelLiquid Pipe Diameter (mm)Suction Pipe Diameter (mm)Refrigerant Outlet (mm)Liquid Inlet Pipe Diameter (mm)Unit Dimensions (mm)
ANCDJ25DF285442352300*1500*1700
ANCDJ30DF285442352300*1500*1700
ANCDJ40DF285442352300*1500*1700
ANCDJ50DF357654352300*1500*1700
ANCDJ60DF357676422300*1500*1700

Evaporating Temperature Range / Refrigerant

-35℃~-20℃(R22)

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