China PU sandwich panel

  • >=1 Square Meters
Polyurethane Sandwich Panels
Lead Time:
Quantity(Square Meters) 1 - 100 >100
Est. Time(days) 3 Negotiable
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Quick Details
1 Year
After-sale Service:
Online technical support, Onsite Installation, Onsite Inspection, Free spare parts, Return and Replacement, NONE
Project Solution Capability:
graphic design, 3D model design, total solution for projects, Cross Categories Consolidation, Others
Workshop, Cold Storage
Design Style:
Place of Origin:
Shandong, China
Brand Name:
Panel Material:
50/75/100/150/ 200mm
Surface material:
304 Stainless Steel or color steel
Highly fire Resistant
Easy installation
Supply Ability
Supply Ability:
1000000 Square Meter/Square Meters per Year
Packaging & Delivery
Packaging Details
Picture Example:
Lead Time :
Quantity(Square Meters) 1 - 100 >100
Est. Time(days) 3 To be negotiated
Video Description
Detailed Images

Heating Insulation:

Cold Room space is the place for the storage and preservation of agricultural products, it is normally used to maintain the stability of low temperature environment which usually called heating insulation. The heating insulation includes three parts:Panels, Door , Floor Insulation. Good heating insulation structure can maximize to keep that the cold which is created by condensing units inside the cold room space, in turn, it can maximize to keep the heat outside of the cold room space. This is mainly different part between the cold room and general rooms.



1.Cold Storage Room using 100% polyurethane panel;

2.Panels’ thicknesses are different according to the temperature in the Cold storage room; 

(50mm,75mm,100mm,150mm,200mm etc.)

3.Sides materials: Color steel plate, Stainless steel plate;

4.Specification(Thickness): 50mm, 75mm, 100mm, 120mm, 150mm, 175mm, 200mm;

5.Splicing: The convex groove form,Eccentric hook lock box, Sealing material sealing gap; 

6.Size: Width 960mm/1160mm; Any long less than 1200mm;

7.Advantages of the panels:

(1).Good Thermal insulation properties, Thermal coefficient is less than 0.024w/m.k. Obturator rate can get to 90%. Ensure the property of the plates. Can largely reduce the cost of Heating and electromechanical.

(2).Fire performance

 The plates fire proof property can meet B grade.difficult to burn in the air, from the fire self-extinguishing

(3).Sound insulation performance

 Sound insulation coefficient bigger than 27dB. Effectively reduce the noise impact, can meet building diversified needs

(4).Sealing property

 The plates can prevent moisture and rain from entering,at the same time ensure the heating insulation property.

(5).High strength


 Strong stiffness and bearing capacity to meet building physical properties and compression requirements.




Cold Room Door is one of the key parts of whole refrigeration unit system. Bad cold room doors can destroy a refrigeration system because of the bad  Sealing.Our Cold Room Doors are complete in specifications, outstanding in performance and beautiful in appearance, and reliably in quality. The technical level of our electric doors is leading among similar products.

Cold Room Doors are shaped by foaming at one time through high-pressure injection of PU. PU is of dense tissue, evenly filled, without foam contracting and bulging, making door flat and artistic.


Sealing strips: The tightness of refrigeration storage doors mainly depending on the strips.


1.Sides: according to customers;

2.Materials: polyurethane foaming;

3.Types: sliding doors or swing doors;

4.Motivations: manual doors or electric doors;

5.Doors’ thicknesses are different according to the temperature in the air blast freezer

Advantages of Doors:

(1).Hardware components used for doors are pressed through mechanical process, with high precision. They can ensure doors opened easily and freely.

(2).Anti-freezing devices: Electric heating anti-freezing devices are fixed around the door to effectively prevent doors and door frames from bonding and freezing. 

(3).Out-of-danger devices: When someone is locked in the storage carelessly, just turn the out-of-danger handle and pull the door opener device to open the door and escape danger smoothly without destroying the door lock.

(4).Electric driving devices: With specific switching device, when power is off, the driving device is separated automatically to allow easy manual operation. With photoelectric contactless switch, the storage door will stop automatically when it runs almost to terminal (with certain distance left) ,against impact. Gear racks or chains are used for driving, allowing longer service life. With PLC or IC control, the electric control system runs smoothly and steadily ,easy maintenance.

(5).Air curtain: Large air-pressure centrifugal fan is used to effectively reduce the loss of cool air in the refrigeration storage.


Floor Insulation:

Refrigeration System:

Refrigeration system mainly includes cold storage unit, which is the core of the cold storage to ensure that the cold storage room cold source supply. The control device is the brain of the cold storage, which directs the cooling system to ensure the cooling supply.

Generally cold room works with the refrigerator to use the liquid whose gasification temperature is very low (ammonia or freon) as a refrigerant, and when it is taken into the low pressure and mechanical control conditions, its evaporation will absorb the heating inside the cold room to achieve the refrigeration purpose.

The most popular refrigeration unit are mainly composed of the compressor, condenser, valve and evaporator and other components.

The compressor units what we use are imported from Germany. The air chiller and evaporator are researched and made by our company, in these way, we can make it with high quality control, production duration control and cost saving .Solenoid valve, thermal expansion valve, sight glass are famous Danfoss brand and other parts Such as copper ball valves, filters, welding valves,  are freon international, domestic well-known brands.


Company Information



Shandong Huayu Machinery Equipment Co., Ltd

          Shandong Aonaer Refrigeration Science And Technology Co.,Ltd

 We have two manufature factories ,Shandong Aonaer Refrigeration Science and Technology Co.Ltd &.Shandong Huayu Machinery Equipment Co.,Ltd.Tt's a national high technology enterprise specializing in the development,,installation & debugging and international trading of industry refrigeration equipments and meat processing equipments .Our company was established in 2007,has more than 300 staffs,covering Knife sterilizer5,000 square meters.

Our mainly products are as follow:

Pedal bridge.Industry Refrigeration

Air cooler,evaporative condenser,single freezing equipmentcondensing unit,PU cold room panel and cold room door,Pedal bridg etc.

2.Food factory Equipments

Aotomatic meat processing conveyor,thawing room ,boot washer,air shower,stainless steel worktable,stainless steel rack,Knife sterilizer,turnoverbox washer,changing room facilities, and other slaughterhouse equipments.

3.Thawing room for frozen meat.

Our market covers food,meat,aquatic products,fruit and vegetable,medicine,logistics,deucation and chemical industry.We can provide food processing company and cold-chain logistics enterprises with one-stop service.Including cold room project design,product manufacture and engineering construction service.Our production positioning as the overall high-end cold storage brand. Through years of growth and development.the company has matured technology and stable quality of product manufacturing becoming a professional & efficient management team.As the same time it has established a good reputation and image in the industry and the market.The products are distributed in dozens of countries and regions such as the United State,Austrilia,Russian,Ethiopia Indonesia,Malaysia.Philippines,CambodiaA,Vietnam,Uzbekistan ,Mongolia etc.

Welcome to visit our company

We look forward to coperation with you !

 Add:#333 Ankang Road High-teck Development Zone Binzhou City shandong Province China.



Good Quality:

All of our products comply with international quality standards and are greatly appreciated in a 

variety of different markets throughout the world. Our well-equipped facilities and excellent quality control throughout all stages of production make us to guarantee total satisfaction of the customers. Besides, we have passed ISO 900:2008, CE, HALAL certification.

Good Oversea Service:

As a result of our high quality products and oversea customer service with a strong engineers and 

technician team, we have gained a global sales network reaching America, France, Australia, Egypt, Cambodia, Vietnam and 20 other countries and regions.