Air-Cooled screw chiller Unit

The Lynxcool's Air-Cooled screw chiller Unit is engineered for applications where indirect cooling is essential. By utilizing brine (salt solution or glycol mixture) as a secondary refrigerant, the system ensures stable, safe, and efficient low-temperature cooling, even in complex industrial environments.

This solution is ideal for:

Long-distance cooling distribution

Multi-point process cooling

Applications requiring thermal storage or buffer tanks

Situations where direct refrigerant evaporation is not suitable

With temperature ranges extending well below 0°C, it is widely deployed across industrial, commercial, and specialized refrigeration scenarios.

Two Configurations for Different Needs

1. Semi-Hermetic screw chiller

Built around internationally recognized RefComp twin-screw compressors, this series offers:

Key Advantages:

● Stable and continuous operation

● High energy efficiency

● Compact, factory-integrated design

● Easy installation and maintenance

Standard Configuration Includes:

● Semi-hermetic screw compressor

● High-efficiency oil separator

● Shell and tube evaporator (DX or flooded)

● Water-cooled condenser

● Expansion valve (electronic or thermostatic)

● Dry filter and complete piping system

Typical Applications:

● Chemical and fine chemical production

● Pharmaceutical processing (GMP environments)

● Food processing and cold storage

● Aquaculture and seafood processing

● Commercial refrigeration systems

2. Open-Type screw chiller

Powered by SRM open-type screw compressors, this series is designed for heavy-duty industrial applications.

Key Advantages:

● Flexible motor configuration (belt or coupling drive)

● Easier maintenance and overhaul

● Suitable for large-capacity systems

● Adaptable for future upgrades

Condenser Options:

● Water-cooled (high efficiency)

● Evaporative condenser (water-saving solution)

Typical Applications:

● Petrochemical & oil refining

● Large-scale industrial refrigeration

● Ice rinks & snowmaking systems

● Pharmaceutical and biochemical industries

● Ultra-low temperature cold storage

Technical parameters of Semi-Hermetic screw chiller

Core Product Features & Technical Advantages

① Industrial-Grade Intelligent Control Center

The screw chiller Unit features an industrial-grade intelligent control system with integrated protection modules and a smart alarm system. It enables fully automated operation, including real-time monitoring, automatic start/stop, load-based capacity adjustment, and rapid response to abnormal conditions.

Multi-level protection safeguards against high discharge pressure, low suction pressure, high temperature, low oil pressure, motor overload, and phase imbalance — reducing downtime and extending service life.

② High-Efficiency Enhanced Heat Transfer Tubes

All heat exchangers use high-efficiency enhanced tubes designed to increase turbulence and surface area for superior heat transfer.

This allows the chiller to deliver full cooling capacity with a more compact design and lower refrigerant charge.

Individual tubes can be replaced independently, reducing maintenance downtime and service costs.

③ Optimized Condenser Design for Superior Heat Rejection

The condenser features an optimized refrigerant distribution system to ensure uniform flow across the entire surface.

This maximizes heat transfer efficiency, reduces condensing pressure, and improves overall system COP — especially under high temperatures and part-load conditions.

④ Optimized Suction Gas Return Line for Reliable Oil Return

The optimized suction line design ensures reliable oil return to the compressor under all operating conditions, including part-load operation.

This prevents oil accumulation, maintains proper lubrication, and reduces the risk of compressor wear and failure.

⑤ Multi-Stage High-Efficiency Oil Separation System

The Lynxcool screw chiller is equipped with a multi-stage oil separation system that achieves very high oil separation efficiency from the compressor discharge gas. By minimizing the quantity of lubricating oil that carries over into the refrigeration system, the multi-stage oil separator protects the heat exchangers from oil fouling — a significant cause of heat transfer performance degradation in refrigeration systems — and ensures that the compressor maintains an adequate oil charge for reliable lubrication throughout continuous operation. The result is improved heat exchanger efficiency, higher system COP, and reduced maintenance intervention related to oil management.

⑥ User-Friendly Interface with One-Touch Operation

The intuitive interface clearly displays system parameters, operating status, alarms, and maintenance reminders.

One-touch operation simplifies startup and shutdown, reducing errors and enabling easy use without specialized training, while advanced settings and diagnostics remain accessible for professionals.

⑦ Precise Control Logic for Safe & Efficient Operation

The screw chiller Unit employs advanced control algorithms to optimize compressor capacity and system operation in real time. This ensures precise temperature control, high energy efficiency, and stable performance under various loads and operating conditions.

⑧ Extensive Optional Configuration for Broader Applications

A wide range of optional configurations are available to meet different project needs, including frequency converters, heat recovery systems, corrosion-resistant materials, extended temperature ranges, redundant compressors, and remote monitoring. Easily adaptable to various industrial applications.

Key Technical Specifications

Why Choose Lynxcool?

1. Proven Engineering Experience

With hundreds of global cold storage and refrigeration projects, Lynxcool possesses extensive practical experience, going beyond mere theoretical knowledge.

2. Full Lifecycle Service Capability

From system design → manufacturing → installation → after-sales service, we provide complete turnkey solutions.

3. Reliable Product Performance

Low failure rate

Stable operation in harsh environments

Long service life

4. Global Service Network

15 international service centers ensure rapid response and technical support worldwide.

5. Trusted by Global Brands

Lynxcool's screw chiller Unit is widely used by leading companies in the following industries:

Food and Beverage

Cold Chain Logistics

Pharmaceutical Manufacturing

The screw chiller Unit is more than just a cooling system — it is a complete industrial refrigeration solution designed for reliability, efficiency, and scalability.

If you are seeking a professional screw chiller manufacturer, a reliable brine chiller supplier, or a custom industrial refrigeration partner, Lynxcool provides the expertise, products, and global support to ensure your project’s success.