Open-type Two-stage Screw Refrigeration Compressor Unit

A leading China manufacturer, Lynxcool offers the Open-type Two-stage Screw Refrigeration Compressor Unit designed for industrial ultra-low temperature applications. Combining precision-forged steel rotors, advanced interstage cooling, and independent Vi capacity regulation, this unit delivers reliable performance down to -65℃.

Built with high-grade ductile iron casings, high-precision bearings, and integrated oil management, it provides long-lasting durability, minimal maintenance, and superior energy efficiency – ideal for IQF tunnels, pharmaceutical freeze-drying, marine deep-freezing, and specialized cold storage.

Why Choose This Two-Stage Screw Compressor Unit?

1. Achieve Stable -65℃ Performance with Optimized Two-Stage Compression

The low-pressure (LP) booster and high-pressure (HP) stage operate in series, enabling extreme compression ratios while maintaining low discharge temperatures. This design ensures stable operation even at evaporating temperatures as low as -65℃, maximizing the Coefficient of Performance (COP) for deep-freezing applications.

2. "i" Profile Rotors – Precision-Engineered to Reduce Your Energy Bills

Both LP and HP stages feature advanced 5+7 lobe rotors that enhance gas displacement while minimizing internal leakage. Precision-forged steel construction and micron-level accuracy machining deliver optimal performance, lower power consumption, and minimal wear under continuous heavy-duty cycles.

3. Built-in Interstage Cooling – Extends Compressor Lifespan

An integrated interstage cooler (plate or shell-and-tube design) efficiently reduces gas temperature discharged from the LP stage. This prevents excessive thermal stress on the high-pressure stage, extending equipment lifespan and improving overall cycle efficiency.

4. Smart Controls for 10–100% Load Matching – Pay Only for the Power You Use

Independent Vi adjustment and stepless capacity regulation for both stages allow precise load matching. The unit adapts efficiently to fluctuating demands without compromising performance – significantly reducing energy consumption during partial load conditions.

5. Advanced Oil Management – Less Maintenance, More Uptime

A fully integrated oil management system with high-efficiency separators minimizes oil carry-over while maintaining optimal rotor cooling. This reduces maintenance frequency and ensures consistent operation, even under extreme cooling conditions.

6. Built to Last – 100,000-Hour Design Life

Constructed with high-grade ductile iron casings and high-precision rolling bearings, the Open-type Two-stage Screw Refrigeration Compressor Unit is engineered for a service life exceeding 100,000 hours. Robust construction supports heavy-duty industrial usage while minimizing downtime.

Technical Specifications

For detailed specifications including cooling capacity at various conditions, please download the full technical datasheet below.

* Capacity data for reference only. Actual performance depends on operating conditions.

Applications – Where This Unit Excels

From Design to Commissioning – We Support Your Project

Lynxcool offers end-to-end support for the Open-type Two-stage Screw Refrigeration Compressor Unit. We don't just sell equipment – we deliver complete, reliable refrigeration solutions.

Manufacturing Excellence

As a direct manufacturer based in Qingdao, China, Lynxcool maintains strict quality control at every stage – from raw material inspection to final testing. Our ISO-certified facilities and experienced engineering team ensure each unit meets global standards before shipment.