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Supermarket & Retail Kitchens

Two-Stage Screw Condensing Unit for Industrial Low-Temperature Refrigeration

  • Fresh
  • Durable
  • Customizable

A two-stage screw condensing unit uses staged compression within a single system to support demanding refrigeration and high-temperature heat-pump applications, with final configuration selected according to the required duty and operating conditions.

  • Low-Temperature Application Reference Down to -45°C for ultra-low-temperature freezing applications, subject to system design and rated conditions
  • High-Temperature Hot-Water Reference Hot-water production up to 90°C, subject to the specified heat-pump configuration and operating conditions
  • Two-Stage Compression in One Unit
  • Designed for Demanding Temperature Applications
  • Potential Efficiency Improvement
  • Integrated System Layout
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  • Flexible Installation
  • Chilled or Frozen Transport
  • Portable Design
  • Power Flexibility
Two-Stage Screw Condensing Unit for Industrial Low-Temperature Refrigeration Get a Quote
Overview

Two-Stage Screw Compression for Demanding Refrigeration Duties

A two-stage screw condensing unit divides the compression process into two stages within an integrated system. This arrangement is intended for applications where the pressure ratio and temperature lift make operating conditions more demanding than those of conventional refrigeration duties. The source page references ultra-low-temperature freezing down to -45°C and high-temperature hot-water production up to 90°C, as well as a potential efficiency improvement of up to 30% compared with traditional solutions.

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Containerized cold room being crane-lifted onto a concrete base at a distribution site

  • How Two-Stage Compression Works

    Refrigerant compression is divided between two stages rather than being completed in one step. The specific cycle arrangement, interstage conditions and control method should be confirmed in the selected unit’s engineering documentation.

  • For Ultra-Low-Temperature Freezing

    The source page cites freezing applications reaching -45°C. Confirm whether this value refers to the target process or evaporating temperature, and request the rated capacity at the project’s actual design conditions before selecting equipment.

  • For High-Temperature Heat-Pump Applications

    The page also references hot-water production up to 90°C. The achievable outlet-water temperature and heating capacity depend on the heat-pump configuration, source temperature, refrigerant and operating limits.

  • Energy Performance Depends on Operating Conditions

    The source page states that efficiency may improve by up to 30% compared with traditional solutions. For a fair project comparison, request the baseline system, measurement method, operating point and energy-performance data.

  • Integrated Equipment Layout

    An integrated two-stage unit may reduce the need for a more complex arrangement of separate equipment in some applications. Confirm dimensions, lifting points, maintenance access, piping routes and required auxiliary components before installation.

  • Application-Specific Engineering

    Industrial freezing, low-temperature processing and high-temperature heat-pump projects have different load profiles and operating requirements. Provide the design temperatures, required capacity, refrigerant, utility conditions and duty cycle for engineering review.

Specifications

Technical Specifications

Reference configuration for the two standard sizes. Dimensions, refrigeration capacity and electrical supply are confirmed for each project in the quotation drawing.

Item

Reference Stated on Source Page

Qualification / Confirmation Needed

Compression Method

Single-unit, two-stage screw compression

Confirm exact compressor model, cycle arrangement and control method for the selected unit.

Ultra-Low-Temperature Application

Down to -45°C for freezing applications

Confirm whether this is process temperature or evaporating temperature, and obtain rated capacity at that point.

High-Temperature Hot-Water Application

Hot-water production up to 90°C

Confirm heat-pump configuration, inlet/outlet water conditions, heating capacity and operating limits.

Efficiency Improvement

Up to 30% compared with traditional solutions

Confirm comparison baseline, measurement method, load profile and operating conditions; do not treat as a universal guarantee.

Service Life / Mechanical Stress

The source describes reduced mechanical and thermal stress as a design benefit

Request supporting design documentation and warranty/service terms if these claims are used commercially.

Dimensions, Power and Refrigerant

Not specified in a complete technical table on the page

Obtain the approved datasheet and drawing before quoting or publishing model-specific specifications.
Configurations

Configured Around
What You Store

Choose the temperature version first, then add the upgrades your site and product need. Every option is built and tested in the factory, not retrofitted on site.

  • 0 → +15 °C

    Chilled Storage

    Fruit, vegetables, flowers, dairy and beverages — humidity-friendly air distribution.

    01
  • −18 → −25 °C

    Frozen Storage

    Meat, seafood, ice cream and frozen food, with heated door frames and pressure relief.

    02
  • Down to −40 °C

    Blast Freezer

    High-capacity unit and airflow for fast pull-down of fresh product to core temperature.

    03
  • Chill + Freeze

    Dual-Zone Room

    An insulated partition splits a 40HQ into two rooms, each with its own refrigeration.

    04
For an Accurate Quotation, Please Provide:

Based on this information, the cold storage box and refrigeration configuration can be matched to the buyer’s vehicle and operating conditions.

  • Required internal or external box dimensions
  • Required storage temperature
  • Type of products to be transported
  • Vehicle type and cargo area dimensions
  • Required quantity
  • Available power supply
  • Daily operating time
  • Local ambient temperature
  • Required battery or solar configuration
Applications

Where It Works Best

The Portable Cold Storage Box for Tricycles, Vans & Pickup Trucks is suitable for transporting and storing temperature-sensitive products such as:

How We Deliver

From Inquiry to Cold Storage

  1. 01

    Requirement Review

    Product, target temperature, daily loading and site power supply.

  2. 02

    Design & Quotation

    Heat-load calculation, layout drawing and a configured quotation.

  3. 03

    Production & Testing

    Built in our factory and pull-down tested before it is released.

  4. 04

    Shipping & Documents

    Ships as a standard container with export and customs paperwork.

  5. 05

    Start-Up Support

    Remote commissioning guidance and long-term spare parts supply.

FAQ

Frequently Asked Questions

  • What is a two-stage screw condensing unit?

    It is a refrigeration or heat-pump unit that uses screw compression in two stages within an integrated system. The design is intended for applications with demanding operating conditions; exact performance depends on the selected configuration.

  • Can this type of unit support -45°C freezing applications?

    The source page references ultra-low-temperature freezing down to -45°C. Confirm what the temperature represents and request rated capacity and operating limits at the project’s design conditions.

  • Can it produce hot water at 90°C?

    The source page references hot-water production up to 90°C. The achievable water temperature and heating capacity must be verified for the specific heat-pump configuration and source conditions.

  • Does it guarantee 30% energy savings?

    No. The source page states an improvement of up to 30% compared with traditional solutions. Actual savings depend on the baseline, operating conditions, system design and measurement method.

  • What information is needed for selection?

    Provide the application, target temperatures, required cooling or heating capacity, refrigerant, ambient conditions, utility temperatures, electrical supply, operating schedule and installation constraints.

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