China Custom Two Three Four Stage Air Cooled Condensing Unit with Semi-Hermetic Reciprocating Piston Compressor Unit with high quality

Product Description

Reciprocating Compressor Feature

The unique design of the CHINAMFG compressor* s piston and piston ring reduces the sound level effectively;

Depending on the conditions, the condenser operation mode can be switched between low noise and high efficiency with the variable speed motor.

With our Chinese and Japanese engineers hardworking in design, testing, and debugging during the last several decades, the angle and fixed position of each bend pipe has achieved the perfect accuracy, and the components selected can match each other exactly. Moreover, standardization, the inherent strength of the classic quality of CHINAMFG units, enables the perfect designs to be reproduced continuously.

A resin piston ring imported from Japan can reduce vibration and stress with patented technology;
For each unit, the vibration from multiple points units has been tested. With standardization, the design that can get the best test result i applied in each unit.

Based on standardization, there are various optional accessories according to national market conditions.
Furthermore, selecting optional accessories for the central unit can be customer-oriented, such as adding a condenser fan control system, removing the PLC controller, and selecting a vibration damper.

The machining center in which all the machines are imported from Japan ensures the high quality of CHINAMFG semi-hermetic piston compressors;
Unit protection devices are completely equipped.

The unit is equipped with an I0T intelligent module as standard;
On display, unit operating parameters are reported dynamical ly and fault codes are reported when alarming;
The mobile APP can view the unit running status, running history data, and alarm records (new products in 2019).

Capacity comparison of semi-enclosed reciprocating compressors ( CHINAMFG / Bizer )

HP Panasonic HP Bizer
Model Gas Displacement Cooling Capacity Cylinders Model Gas Displacement Cooling Capacity Cylinders
m³/h RT Qty. m³/h RT Qty.
5HP C-LN37M9A 19.9 2.43 2 5HP 4FES-5 21.78 2.66 4
7.5HP C-LN55M9A 30.7 3.74 2 7.5HP 4DES-7 32.39 3.95 4
10HP C-LN75M91 47.6 5.81 4 10HP 4VE-10 41.92 5.11 4
15HP C-LN113M91 63.4 7.73 4 15HP 4PE-15 58.53 7.14 4
20HP C-LN150M91 88.7 10.82 4 20HP 4NE-20 67.89 8.28 4
25HP 4HE-25 88.83 10.83 4
35HP C-LN250M91 152.1 18.55 6 6HE-28 133.4 16.27 6
30HP 4GE-30 101.98 12.44 4
6GE-34 153.0  18.65 6
40HP C-LN300M91 181.8 22.18 6 40HP 6GE-40 183.0  18.65 6
6FE-44 183.0  22.31 6
50HP 6FE-50 183.0  22.31 6

Panasonic/Sanyo Reciprocating Compressor Refrigeration Capacity Table

Serial Number
Specification MODEL NO Evaporation temperature(°C)
-40 -30 -20 -15 -10 -5
Piston compressors 5HP C-LN37M9A 1,932  3,809  6,571  7,594  9,437  11,507 
7.5HP C-LN55M9A 3,280  6,130  9,265  11,507  14,571  16,986 
10HP C-LN75M91 3,960  8,030  13,080  16,680  20,380  25,880 
15HP C-LN113M91 5,250  11,550  18,500  23,390  29,400  35,430 
20HP C-LN150M91 9,200  17,700  27,660  34,570  42,700  50,380 
35HP C-LN250M91 14,990  28,840  45,065  56,323  69,750  82,815 
40HP C-LN300M91 17,920  34,460  53,853  67,306  83,135  98,964 

Bingshan Group was founded in 1930(Investment by CHINAMFG & Chinese government); there are 43 enterprises, which include 1 public company, 9 subsidiary enterprises (domestically funded enterprises), and 32 Sino-foreign joint ventures. CHINAMFG Group has total assets of 9.5 billion RMB and 12000 contracted employees.  China’s largest manufacturing base of refrigeration and air-conditioning equipment, agricultural deep processing equipment base, and 1 of the main bases of China’s petrochemical general machinery equipment.


HangZhou CHINAMFG Engineering & Trading Co., Ltd. (Hereafter referred to as BSET) is a jointly funded professional trading company by HangZhou CHINAMFG Group Co., Ltd and HangZhou Refrigeration Co., Ltd. in 1988. Concentrating on consulting, design, and sales. 

BSET provides quality products to different application fields including fruit and vegetable, meat and poultry, seafood, beverage etc processing and freezing & refrigerating fifield etc. 

BSET has undertaken hundreds of turnkey projects in Asia, Africa, America etc. more than 60 countries and regions, as well as offer customized energy optimization and sustainable cold chain solutions. 


Main Application

Heating Ventilation Central Air Conditioning

Industrial Refrigeration

Food Refrigeration

Trading & Service



Main Products

Screw Compressor Unit Series

Piston Compressor Unit Series

LiBr Absorption Chiller Series

Condenser and Cooling Tower Series

Evaporator Series

Quick Freezer Series

Commercial VRF Series, Air Handling Unit Series, Terminal Equipment Series




Q1.What is our main product?

A1: Our company is a professional trading company funded by HangZhou Refrigeration Co., Ltd. in 1988. Concentrate on consulting, design, sales, installation, commissioning, and maintenance of the refrigeration equipment.


Q2.When can I get the price?

A2:We usually offer the quotation within 2-3 work days for equipment and 5-10 work days for the system after receiving your inquiry. For urgent offer, please contact with us for special.  


Q3.What is the Trade Term?

A3: We accept Ex-work factory, FOB HangZhou, CNF or CIF, as your requirement. 


Q4.How long is our Production leading time?

A4: It depends on the type of equipment.

For cold storage equipment, the lead time is 60-80 days after receiving the down payment or Letter of credit.

For Spiral Freezer, Tunnel Freezer, the lead time is 80-90 days after receiving down payment or Letter of credit.

For the flake ice making unit and plate freezer, the lead time is 45 days after receiving down payment or letter of credit.


Q5.What is the Payment term?

A5: By 100% T/T before shipment or By L/C at sight.


Q6. During shipping, if there is damage to products, how do you get a replacement?

A6: Firstly, we should investigate the reason cause the damage. At the same time, we will claim for the insurance by ourselves or assist the buyer.

Secondly, we will send the replacement to the buyer. The responsible person for the above damage will take charge of the cost of the replacement.


Q7. What are your terms of packing?

A7: Packing: export-worthy package suitable for container transportation.


Q8. Do you test all your goods before delivery?

A8: Yes, we have 100% test before delivery.


Q9: How do you make our business long-term and good relationship?

A9: HangZhou Refrigeration Co., Ltd was established on 1930. In past 88 years, we have set up our famous brand “Bingshan” not only in domestic market but also overseas market. How to make this brand life so long time?  Good quality and reliable service create good reputation among the customers. Many customers keep adopting our system in past 20days extension of the business. Win-win business is our main task for the long-term cooperation.


Q10: Are you a factory or a trading company?

A10: We are the only door to overseas market for HangZhou Refrigeration Co., Ltd. We have our own design team, installation team and after-sales team. We are professional engineering & trading company. We have set up branch office in Philippines, Malaysia, Thailand, Burma, Cambodia, Singapore, Bangladesh, Pakistan, Russian, Uzbekistan, Brazil, Argentina etc.


Q11: Where is your factory located?

A11: Our factory is located in HangZhou, ZheJiang  province.  


Q12: What is your warranty?

A12: Warranty: 12months after commercial running or 18months from the date of shipment, subject to the earlier expiry.


Q13: Can you arrange 30 party pre-shipment inspection

A13: Pre-shipment inspection: Supplier’s pre-shipment inspection is Final; pre-shipment inspection by third Party on buyers cost.


Q14:Can we do our OEM logo?
A14:Yes, for the products with drawing supplied by you, we of course apply your logo


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After-sales Service: 12 Months
Warranty: 12 Months
Lubrication Style: Oil-free
Cooling System: Air Cooling
Cylinder Arrangement: Balanced Opposed Arrangement
Cylinder Position: Angular


air compressor

Can air compressors be used for shipbuilding and maritime applications?

Air compressors are widely used in shipbuilding and maritime applications for a variety of tasks and operations. The maritime industry relies on compressed air for numerous essential functions. Here’s an overview of how air compressors are employed in shipbuilding and maritime applications:

1. Pneumatic Tools and Equipment:

Air compressors are extensively used to power pneumatic tools and equipment in shipbuilding and maritime operations. Pneumatic tools such as impact wrenches, drills, grinders, sanders, and chipping hammers require compressed air to function. The versatility and power provided by compressed air make it an ideal energy source for heavy-duty tasks, maintenance, and construction activities in shipyards and onboard vessels.

2. Painting and Surface Preparation:

Air compressors play a crucial role in painting and surface preparation during shipbuilding and maintenance. Compressed air is used to power air spray guns, sandblasting equipment, and other surface preparation tools. Compressed air provides the force necessary for efficient and uniform application of paints, coatings, and protective finishes, ensuring the durability and aesthetics of ship surfaces.

3. Pneumatic Actuation and Controls:

Air compressors are employed in pneumatic actuation and control systems onboard ships. Compressed air is used to operate pneumatic valves, actuators, and control devices that regulate the flow of fluids, control propulsion systems, and manage various shipboard processes. Pneumatic control systems offer reliability and safety advantages in maritime applications.

4. Air Start Systems:

In large marine engines, air compressors are used in air start systems. Compressed air is utilized to initiate the combustion process in the engine cylinders. The compressed air is injected into the cylinders to turn the engine’s crankshaft, enabling the ignition of fuel and starting the engine. Air start systems are commonly found in ship propulsion systems and power generation plants onboard vessels.

5. Pneumatic Conveying and Material Handling:

In shipbuilding and maritime operations, compressed air is used for pneumatic conveying and material handling. Compressed air is utilized to transport bulk materials, such as cement, sand, and grain, through pipelines or hoses. Pneumatic conveying systems enable efficient and controlled transfer of materials, facilitating construction, cargo loading, and unloading processes.

6. Air Conditioning and Ventilation:

Air compressors are involved in air conditioning and ventilation systems onboard ships. Compressed air powers air conditioning units, ventilation fans, and blowers, ensuring proper air circulation, cooling, and temperature control in various ship compartments, cabins, and machinery spaces. Compressed air-driven systems contribute to the comfort, safety, and operational efficiency of maritime environments.

These are just a few examples of how air compressors are utilized in shipbuilding and maritime applications. Compressed air’s versatility, reliability, and convenience make it an indispensable energy source for various tasks and systems in the maritime industry.

air compressor

How are air compressors utilized in pneumatic tools?

Air compressors play a crucial role in powering and operating pneumatic tools. Here’s a detailed explanation of how air compressors are utilized in pneumatic tools:

Power Source:

Pneumatic tools rely on compressed air as their power source. The air compressor generates and stores compressed air, which is then delivered to the pneumatic tool through a hose or piping system. The compressed air provides the force necessary for the tool to perform various tasks.

Air Pressure Regulation:

Air compressors are equipped with pressure regulation systems to control the output pressure of the compressed air. Different pneumatic tools require different air pressure levels to operate optimally. The air compressor’s pressure regulator allows users to adjust the output pressure according to the specific requirements of the pneumatic tool being used.

Air Volume and Flow:

Air compressors provide a continuous supply of compressed air, ensuring a consistent air volume and flow rate for pneumatic tools. The air volume is typically measured in cubic feet per minute (CFM) and determines the tool’s performance capabilities. Higher CFM ratings indicate that the pneumatic tool can deliver more power and operate at a faster rate.

Tool Actuation:

Pneumatic tools utilize compressed air to actuate their mechanical components. For example, an air-powered impact wrench uses compressed air to drive the tool’s internal hammer mechanism, generating high torque for fastening or loosening bolts and nuts. Similarly, air-powered drills, sanders, nail guns, and spray guns rely on compressed air to power their respective operations.


One of the significant advantages of pneumatic tools is their versatility, and air compressors enable this flexibility. A single air compressor can power a wide range of pneumatic tools, eliminating the need for separate power sources for each tool. This makes pneumatic tools a popular choice in various industries, such as automotive, construction, manufacturing, and woodworking.


Air compressors come in different sizes and configurations, offering varying degrees of portability. Smaller portable air compressors are commonly used in applications where mobility is essential, such as construction sites or remote locations. The portability of air compressors allows pneumatic tools to be used in various work environments without the constraints of being tethered to a fixed power source.

Overall, air compressors are integral to the functionality and operation of pneumatic tools. They provide the necessary power, air pressure regulation, and continuous airflow required for pneumatic tools to perform a wide range of tasks efficiently and effectively.

air compressor

How do oil-lubricated and oil-free air compressors differ?

Oil-lubricated and oil-free air compressors differ in terms of their lubrication systems and the presence of oil in their operation. Here are the key differences:

Oil-Lubricated Air Compressors:

1. Lubrication: Oil-lubricated air compressors use oil for lubricating the moving parts, such as pistons, cylinders, and bearings. The oil forms a protective film that reduces friction and wear, enhancing the compressor’s efficiency and lifespan.

2. Performance: Oil-lubricated compressors are known for their smooth and quiet operation. The oil lubrication helps reduce noise levels and vibration, resulting in a more comfortable working environment.

3. Maintenance: These compressors require regular oil changes and maintenance to ensure the proper functioning of the lubrication system. The oil filter may need replacement, and the oil level should be regularly checked and topped up.

4. Applications: Oil-lubricated compressors are commonly used in applications that demand high air quality and continuous operation, such as industrial settings, workshops, and manufacturing facilities.

Oil-Free Air Compressors:

1. Lubrication: Oil-free air compressors do not use oil for lubrication. Instead, they utilize alternative materials, such as specialized coatings, self-lubricating materials, or water-based lubricants, to reduce friction and wear.

2. Performance: Oil-free compressors generally have a higher airflow capacity, making them suitable for applications where a large volume of compressed air is required. However, they may produce slightly more noise and vibration compared to oil-lubricated compressors.

3. Maintenance: Oil-free compressors typically require less maintenance compared to oil-lubricated ones. They do not need regular oil changes or oil filter replacements. However, it is still important to perform routine maintenance tasks such as air filter cleaning or replacement.

4. Applications: Oil-free compressors are commonly used in applications where air quality is crucial, such as medical and dental facilities, laboratories, electronics manufacturing, and painting applications. They are also favored for portable and consumer-grade compressors.

When selecting between oil-lubricated and oil-free air compressors, consider the specific requirements of your application, including air quality, noise levels, maintenance needs, and expected usage. It’s important to follow the manufacturer’s recommendations for maintenance and lubrication to ensure the optimal performance and longevity of the air compressor.

China Custom Two Three Four Stage Air Cooled Condensing Unit with Semi-Hermetic Reciprocating Piston Compressor Unit   with high qualityChina Custom Two Three Four Stage Air Cooled Condensing Unit with Semi-Hermetic Reciprocating Piston Compressor Unit   with high quality
editor by CX 2024-04-03