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)
ANCDJ70DFHigh-efficiency energy-saving evaporative type3.000.75DN80DN501620*2310*3340
ANCDJ75DFHigh-efficiency energy-saving evaporative type3.001.10DN80DN501900*2500*3080
ANCDJ110DFHigh-efficiency energy-saving evaporative type3.001.50DN80*2DN65*21900*2670*3330
ANCDJ125DFHigh-efficiency energy-saving evaporative type4.001.50DN80*2DN65*21900*2670*3480
ANCDJ160DFHigh-efficiency energy-saving evaporative type3.001.50DN80*2DN65*21900*2670*3530

Refrigerant

R22

Compressor Type

Screw compressor (Bitzer)

Power Range

70P~160P

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
ANCDJ70DFHSN7461-70220/2661
ANCDJ75DFHSN7471-75250/3021
ANCDJ110DFHSN8561-110359/4331
ANCDJ125DFHSN8571-125410/4951
ANCDJ160DFHSN8591-160535/6461

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)
ANCDJ70DF59.5045.6074.0047.2090.5048.90109.3050.60
ANCDJ75DF64.5048.7050.6050.6052.6052.6054.7054.70
ANCDJ110DF92.2083.60115.3096.90142.2090.10173.4093.00
ANCDJ125DF109.6075.50135.5079.30165.1083.00198.8086.80
ANCDJ160DF137.70102.50170.50106.50208.10111.40250.80114.40

Max Running Current (A)

ModelMax Running Current (A)
ANCDJ70DF124
ANCDJ75DF144
ANCDJ110DF197
ANCDJ125DF216
ANCDJ160DF274

Unit Installation Parameters

ModelLiquid Pipe Diameter (mm)Suction Pipe Diameter (mm)Refrigerant Outlet (mm)Liquid Inlet Pipe Diameter (mm)Unit Dimensions (mm)
ANCDJ70DF357676422300*1500*1700
ANCDJ75DF357676422300*1500*1700
ANCDJ110DF4210876572400*1500*1700
ANCDJ125DF5410876572400*1500*1700
ANCDJ160DF5410876572400*1500*1700

Evaporating Temperature Range / Refrigerant

-35℃~-20℃(R22)

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