Company Profile
WENZHOU DMG MACHINERY Co., Ltd
WENZHOU DMG MACHINERY Co., Ltd mainly manufacture and export chiller,cooling tower and air compressor.Our factory have advanced assembly,production line and testing equipment.Supporting to develop,design and manufacture refrigeration equipment and screw air compressor that comply with the regulation of ISO9001 quality system,CE standard.
·Professional team
50+ Senior engineer effectively control all aspects of the product.
·7x24 hours delivery
7x24 hours delivery capacity,is the best partner for enterprise globalization.
Product Description
Screw Series Water-cooled Chiller Product Introduction
Core Advantages
The Screw Series central cooling water system mainframe adopts imported semi-closed double screw compressors. It is compatible with various refrigerants such as R22, R407, and R134a. The high-efficiency horizontal shell-and-tube condenser and evaporator hold the "BR1" level national pressure vessel manufacturing license, ensuring efficient heat transfer and easy maintenance.
Technical Features
- Compressor Performance:
- Semi-hermetic double screw design with long bearing life for stable long-term operation.
- Dual energy adjustment mechanism for flexible adjustment according to needs, achieving high energy efficiency.
- Heat Exchange System:
- Condenser and evaporator comply with national standards, delivering excellent heat exchange performance and convenient maintenance.
- Intelligent Control System:
- Advanced microcomputer controller with high-speed embedded microprocessor, outperforming similar single-chip products.
- Self-diagnostic hardware components for automatic fault elimination.
- Support for hardware and program expansion, with strong controller scalability.
- Data Storage & Display:
- Industrial-grade storage module (512KB program storage + 128KB power-off retention dual storage area) ensures secure and lossless data storage.
- Touch screen with unique protection system, lifespan exceeding 10 years.
- Real-time display of temperature at each point, set temperature, and 1-hour/24-hour temperature curves.
- Convenient Operation Functions:
- Fault query and statistics: Analyze causes by fault serial number, frequency, and time for improvement.
- Remote on/off control: Supports single timing, weekly timing (up to 3 times daily).
- Multi-language online switching for international applications.
Detailed Photos

Product Parameters
Item & Description |
Water Cooled Chiller |
Model |
MG-300WS |
Cooling capacity |
1093kw, 940000kcal/h |
Input power |
230kw |
Power supply |
380v/50hz/3ph |
Refrigerant |
Type |
R407c |
Type of control |
Capillary tubes |
Compressor |
Type |
Semi-tight screw type |
Qty |
1/2 |
Evaporator |
Model |
Internal-screw shell and tube |
Flow of refrigerated water (m³/h) |
188 |
Pressure loss (kpa) |
67 |
Water pipe interface (pt) |
6'' |
Condenser |
Model |
External thread shell and tube |
Protector |
High and low pressure, overload, anti-phase, compressor over temperature, fusible plug, automatic temperature switch protection, etc. |
External Dimension |
L (mm) |
4100 |
W(mm) |
1600 |
W(mm) |
2260 |
Set Weight |
kg |
5050 |
Running Weight |
kg |
5490 |
Running Niose |
dB(A) |
84 |
Packaging & Shipping
Package&Shipping
·Before shipping, we always test the machines for eight hours to make sure they work normally, no matter if they've been tested before.
·Solid and reliable wooden package to protect your goods.
·Feel free to contact us to get additional help if need.
Sales Service
Pre-sale service:
1.Professional sales and technical service team to provide comprehensive consultation and communication services;
2.Chiller selection by professional engineers after negotiation;
3.Recommend appropriate solutions.
After-sale service:
(1)Service during warranty period
1.After you purchased our equipment,the free remote guidance of installation and necessary technical drawing can be provided;
2.12 months guarantee is our standard warranty time for all products,within warranty time,any problem caused by the defects of the chiller itself,we'll provide free service until the problem be solved;
3.If parts breakdown,provide free replacement of parts.
(2)Service beyond warranty period
1.Tracking maintenance;
2.Provide chiller spare parts with cost price;
3.Chiller maintenance charge cost only;
4.All chiller model spare parts,special reserves support;
5.Customer's information are permanently archived,regular track and re-tracking services.
FAQ
1. What makes you different with others?
1) Our Excellent Service
For a quick, no hassle quote just send email to us
We promise to reply with a price within 24 hours - sometimes even within the hour.
2).Our quick manufacturing time
For Normal orders, we will promise to produce within 15-20 working days.
We can ensure the delivery time according to the formal contract
2. May I know the status of my order?
Yes .We will send you information and photos at different production stage of your order. You will get the latest information in time.
3.Can I use our own brand logo on the products?
Yes. We provide OEM/ODM service to our customers. Our professional engineers having rich experience in heat pump design and manufacture. Just tell us your ideas or provide the drawing, we can help you to carry out your ideas.
4.What is your terms of delivery?
We accept FOB, CFR, CIF, EXW etc. You can choose the one which is the most convenient or cost effective for you.
5. What is your payment terms?
1) T/T 40% deposit, T/T balance 60% paid before shipment;
2) T/T 40% deposit, balance 60% paid through irrevocable L/C at sight;
3) Other payment terms are negotiable.
6. What about warranty?
12 Months after B/L date. Any failure occurred within the period due to our responsibility, we'll supply you the spare parts for free, also permanent technical support and consultation all life long for the machines.
More Products
Click this link to our home page and look over other products:
https://dmgmachines.en.made-in-china.com/