Precision cooling,
built for what matters.
From data centers and laboratories to industrial plants and wine cellars — Hailos designs, manufactures and supports precision air conditioning and chiller systems that keep critical environments exactly where they need to be.
Installed & running
Six product lines.
One standard of precision.
A complete range of environmental control equipment — engineered, built and serviced by one team, so performance stays consistent from the first drawing to the last maintenance visit.
Precision Air Conditioner
Room-level and in-row units with high-precision temperature and humidity control for data centers and telecom rooms. S & L series, including R410A models.
Laboratory-Specific AC
Intelligent constant temperature and humidity systems for research facilities, clean rooms and equipment cooling where stability is non-negotiable.
Air-Cooled Chiller
High-efficiency screw and modular chillers with intelligent control and easy maintenance, covering roughly 112–480 kW of cooling capacity.
Water-Cooled Chiller
Large-capacity water-cooled screw chillers for industrial processes and high-density facilities, from 161 kW up to 1,288 kW class machines.
Wine Cellar Precision AC
W series constant temperature and humidity units that protect collections with quiet, stable and continuous climate control.
Special Industrial AC
Purification and integrated units, heat recovery machines, fresh air systems and custom-built environmental control for demanding sites.
Flagship systems, proven specifications.
Selected models from the current Hailos range — from an in-row precision unit to a 600 kW+ water-cooled screw chiller for mission-critical applications.
S41 Precision Air Conditioner
Room-level precision cooling with top supply configuration, built for continuous duty in data centers and equipment rooms.
L60 In-Row Air Conditioner
Close-coupled cooling placed directly in the rack row, shortening the air path and improving efficiency in high-density installations.
HLS-550WD Water-Cooled Chiller
Dual semi-hermetic screw compressors with staged capacity control, factory-tested for reliable 24/7 operation in demanding environments.
Specifications are taken from published Hailos product information; final values are confirmed per project configuration.
Built in-house, installed on site
A manufacturer you can hold accountable.
Zhengzhou Hailos Refrigeration Equipment Co., Ltd. is a professional air conditioning company integrating design, manufacturing, sales and after-sales service — with a complete portfolio of computer room and precision cooling equipment.
Full-cycle capability
R&D, design, production, sales and after-sales service under one roof. One team owns the result from specification to commissioning.
Depth of range
Room and precision air conditioners, purification and wine cellar units, screw, centrifugal and piston chillers, heat recovery machines and fresh air systems.
Quality built in
A dedicated quality control discipline, intelligent control systems, remote monitoring and factory-tested units designed for 24/7 uninterrupted operation.
Service that reaches you
Sales and service agencies across Beijing, Shanghai, Jiangxi, Shandong, Xinjiang, Fujian, Zhejiang, Henan, Sichuan and beyond — for fast, warm, high-quality support.
Configured around the site, not the catalogue.
Every critical environment is different. Hailos works from the actual load, layout and control requirements to deliver a system that fits — including custom design, installation and operation support.
Customized Precision Air Conditioning Solution
A high-tech research institute urgently needed a stable, precise environment. Hailos engineered a tailored precision cooling solution around its operating conditions.
Read the case
Precision Air Conditioning Installation
Product: Precision Air Conditioning Unit · Type: Air-cooled · Application: Data Center. A complete installation delivered for a mission-critical room.
Read the caseTrusted by the people who run critical facilities.
Long-term relationships are built on units that simply keep working — and on a team that answers when it matters.
“The units have held temperature rock-steady since commissioning. The engineering support during design and installation was exactly what a critical facility needs.”
“We needed tight humidity control for our labs and a supplier who could genuinely customise. Hailos delivered both, on schedule.”
“From the first technical discussion to after-sales service, the team has been responsive and precise. That is why we keep coming back.”
What is new at Hailos.
High-Capacity Water-Cooled Screw Chiller HLS-550WD
608 kW of cooling with four-stage capacity control and precise 5–25 °C temperature management for data centers, manufacturing and high-density environments.
Read articleNew Generation of Precision Air Conditioners
High-precision temperature and humidity control, energy-saving design and redundant architecture supporting 24/7 uninterrupted operation with remote monitoring.
Read articleNew Cooling Equipment for High-Precision Environments
In-row units, constant temperature & humidity systems, HLS-series chillers and customized environmental control for data centers, labs, wine cellars and clean rooms.
Read articleLet's build the right cooling system for your facility.
Tell us about the space, the load and the conditions you need to hold. Our engineers will help you specify the right unit — from a single precision air conditioner to a complete chiller plant.