400kw Air Cooled Screw Chiller for Industrial Cooling

400kw Air Cooled Screw Chiller for Industrial Cooling 

Our 400 kW Air Cooled Screw Chiller is engineered to satisfy large‑scale industrial cooling demands. As an air‑cooled packaged solution, it integrates premium twin‑screw compressors, high‑efficiency V‑type finned condensers and robust shell‑and‑tube evaporators in one compact frame, requiring no cooling tower or additional circulating water system, which greatly reduces civil‑work and installation costs.

The chiller provides flexible capacity modulation from 25%‑100% to adapt to variable production loads, cutting unnecessary power consumption. The smart PLC control system supports local operation as well as remote monitoring, with comprehensive protections against overpressure, over‑current, low/high temperature and freezing to safeguard long‑term continuous operation. Built to withstand demanding workshop environments, this unit supplies steady chilled water for injection molding, extrusion, chemical processing, electroplating, electronics and many other manufacturing processes, delivering dependable thermal control and low total operation cost for industrial plants.

400kw Dual‑Compressor System Air Cooled Screw Chiller Advantage 

System Redundancy for Non‑stop Production Two independent compressors work separately. If one unit fails or needs maintenance, the other compressor can keep running to supply partial cooling capacity, avoiding full production shutdown and minimizing economic loss.

Better Energy‑saving Performance at Partial Loads Compressors can be switched on/off individually according to actual cooling demand. Under low‑load working conditions, only one compressor runs instead of running a single large compressor, effectively cutting power consumption and improving IPLV efficiency.

Lower Inrush Current, Less Impact on Power Grid Compressors start sequentially rather than starting full load at once. It reduces impact current, lowers requirements for factory power distribution and saves power‑grid upgrading cost.

Extended Compressor Service Life Load is shared by two compressors. Less frequent start‑stop cycles reduce mechanical wear, prolong compressor lifespan and lower long‑term maintenance cost.

Precise Step Capacity Control Multi‑step capacity adjustment (25%‑50%‑75%‑100%) matches variable process load, keeps chilled water temperature stable, ideal for plastics, chemical, electroplating and other precision industrial cooling processes.

Flexible On‑site Maintenance Technicians can service one compressor while the other remains operational. No need to fully shut down or drain the whole chiller system for repair work.

Air cooled screw chillers offer several advantages in industrial cooling applications:

No Cooling Tower Required, Easy Installation Built‑in air‑cooled condenser eliminates cooling tower, cooling water pump and related piping. Lower civil engineering cost, ideal for water‑shortage areas and sites with limited space. The unit can be installed outdoors directly.

Fully Packaged Plug‑and‑Play Unit Complete factory assembly and pre‑commissioning including compressors, condenser, evaporator and control panel. On‑site work only requires power and chilled‑water piping, greatly shortening installation & commissioning time.

Save Indoor Workshop Space Can be placed on rooftops or open outdoor areas, no need to occupy valuable production space inside the plant.

Robust Screw Compressor for 24/7 Continuous Operation Heavy‑duty screw compressor designed for non‑stop industrial production. For dual‑compressor models, multi‑step capacity control optimizes energy efficiency under partial‑load conditions.

Lower Routine Maintenance Work No cooling tower scaling, sludge or algae issues. Only regular cleaning of fin coils is needed, saving chemical treatment and tower maintenance cost.

Wide Ambient Working Range Stable operation under high ambient temperature, well suited for hot climate and harsh workshop environments.

Intelligent PLC Control with Full Safety Protections Integrated PLC controller with complete safety interlocks: high/low pressure anti‑freeze, over‑current & overload protection. Supports remote monitoring, auto fault alarm for easy operation.

Compressor features:

•New screw type compressor with 20%-30% higher in efficiency.

•Cooling capacity control available at four steps (100%-75%-50%-25%), three steps (100%-66%-33%) or no steps control system.

•High efficiency, low noise and vibration, easy to install.

•Environmental protection refrigerant R134a, R407c available.

Control operation system:

•SIEMENS PLC program control system, human-computer interface with big LED touch panel, running state displaying in multi-language, and self-diagnosis for easy operation and supervision.

•Extended industrial interface, convenient for being computer monitor via network.

Completely safety protection function:

•Multisafety protection by high and low pressure, compressor overheating, overloading, over temperature, flow switch, phase sequence, phase-missing, exhaust overheating and anti-freezing.

More Pictures about OUMAL Air Cooled Screw Chiller 

Air-Cooled Screw Chiller Products Information

Features:
1. The compressor adopts the international brand. The original imported international brand BITZER Germany (Bitzer) HANBELL China Taiwan (Hanbell), a new type of high-efficiency screw rotor compressor, the efficiency is 20%-30% higher than the general compressor.
2. High efficiency 5:6 patented asymmetric rotor tooth profile.
3. Capacity control can adopt four-stage (100%-75%-50%-25%) or three-stage (100%-66%-33%) and stepless control system.
4. The combined design of 11 bearings and a-type axial thrust balance drum greatly increases the bearing life by 2.5-3.5 times.
5. The use of high-efficiency silicon steel sheet special groove design, and equipped with internal and external omnidirectional design cooling channel, so that the compressor motor can play the highest efficiency under any load.
6. The unique built-in oil pressure system does not need an oil pump to ensure that the compressor maintains the best lubrication effect. The oil separator adopts a double-layer filter method, which has a good oil filtering effect and the heat exchanger can exert its maximum capacity.
7. High efficiency, low noise and low vibration.
8. A variety of refrigerants are available. In addition to R22 refrigerant, environmentally friendly refrigerants such as R134a and R407c can also be used.

Application range of air-cooled screw chiller:

Product Application of air cooled water chillers are used for controlled cooling temperature of products, mechanisms and factory machinery in a wide range . Plastics – injection moulding, PET, blow moulding, woven sack extrusion, sheet and profile...

Product Specification

Packing & Shipping

Packing for LCL transportation Bulk carge

Packing & Loading Full container transportation

FAQ

Q1: Could you help us to recommend the model for our project?

A1: Yes, we have engineer to check the details and make the scheme for you. Based on the following:

1)Cooling capacity;

2)chilled water inlet and outlet temperature

3)chilled water flow

4) Refrigerant;

5) Ambient temperature;

6)Voltage;

7) Be used for what industry?

8)Any other special requirements?

Q2: How to ensure your product with good quality?

A2: All our products with CE certificate. And use the well-know brand accessories, such as copeland, danfoss,Hanbell, Bitzer compressor Emerson expansion Valve, Siemens controller.

also can be customized. All OUMAL Chillers are factory tested under load conditions to ensure good quality and easy installation for users

Q3: What's the warranty?

A3: 15 months warranty for free if confirmed by both side damage in the quality reason.

Q4: Whats your payment term?

A4: We accept T/T, LC, Western Union, etc. Normally, 30% deposit for production, 70% balance before shipment.

Q5: Are you a manufacturer?

A5: Yes, we have more than 15 years in water chiller business. Also have patent on the water chiller appearance.

The control box design make the unit safety and stably.

Q6: How can i Place an order ?

A6: Click Below to fill the table or Call 0086 15112554736