Ningbo Jintian Copper (Group) Co., Ltd.
Ningbo Jintian Copper (Group) Co., Ltd.
  • Inner-grooved Tube:
  • Inner-grooved Tube:

Inner-grooved Tube

Jintian is one of the most reputable inner grooved copper tube manufacturers in China, known for producing high-quality products at competitive prices. With years of experience in the industry, Jintian company has established itself as a trusted supplier of inner grooved tubes to customers worldwide.

The Inner grooved copper tube produced by our company can be used in the heat exchanger industry of air conditioning and refrigeration systems, and the inner grooved copper tube is suitable for thin-walled, thin-diameter, new tooth shape and new product trends.

As a leading manufacturer of inner grooved tubes, Jintian specializes in producing premium quality copper pipes with a series of grooves or ridges on the inside surface, which help to increase the heat transfer efficiency of the system. Our products are made from the finest materials and are rigorously tested to ensure they meet the highest standards of excellence.


Inner Grooved Copper Tube Certifications
  • NSF
  • ASTM
  • TUV

Inner-grooved Tube Video


What Is Inner Grooved Tube

Inner grooved tubes are a type of copper tube that is commonly used in air conditioning and refrigeration systems. This grooved copper tube has a series of grooves or ridges on the inside surface, which help to increase the heat transfer efficiency of the system. This is achieved by increasing the surface area of the tube and enhancing the turbulence of the refrigerant flowing through it.

Inner grooved copper pipe is typically produced using a specialized manufacturing process, which involves the use of advanced machinery and equipment. The copper tube production process begins with the selection of high-quality copper raw materials, which are melted and cast into billets. These billets are then extruded into copper tube blanks, which are further processed into finished tubes.

During the copper tube manufacturing process, the inner grooves are formed using a precision rolling process. The tube blanks are fed through a series of rollers, which press grooves into the inside surface of the tube. This process is carefully controlled to ensure the grooves are uniform and precise.

The resulting the product has a higher heat transfer coefficient than traditional smooth copper tubes, making it ideal for use in air conditioning and refrigeration systems as the inner grooved copper tube in ac. This increased efficiency can result in significant energy savings and improved system performance.

As one of the established and professional wholesale copper tube suppliers, Jintian specializes in providing high-quality inner grooved copper tube to meet your specific needs.


Inner Grooved Copper Tube Performance Advantages

  • High dimensional accuracy

Inner grooved copper tube is manufactured with high precision, ensuring its dimensions is accurate and consistent. This makes them ideal for use in applications where precise measurements are critical.

  • High heat dissipation performance

 The inner grooves of copper tubes increase the surface area, allowing for better heat transfer. This makes internally grooved copper tubes ideal for use in heat exchangers, where efficient heat transfer is essential.

  • High cleanliness

Inner grooved copper tubes are manufactured using high-quality materials and advanced production techniques, ensuring they are free from impurities and contaminants. This makes them ideal for use in applications where cleanliness is essential, such as in the food and beverage industry.

  • Lightweight

Inner grooved copper tubes are lightweight compared to other materials, making them easy to transport and install. This makes them ideal for use in applications where weight is a concern, such as in aircraft and automotive industries.

Inner Grooved Copper Tube Application Fields

As one of copper tube types, internally grooved copper tubes are widely used in various applications where efficient heat transfer is critical. Some of the primary application fields for inner grooved copper tubes are:

  • Air Conditioner Condenser

Copper tube inner grooved is commonly used in air conditioner condensers due to its excellent heat transfer properties. The grooves on the inner surface of the tube increase the turbulence of the refrigerant flowing through it, which enhances the heat transfer coefficient and improves the efficiency of the system.

  • Air Conditioner Evaporator

Inner grooved tube is also used in air conditioner evaporators, where it helps to improve the efficiency of the heat transfer process by increasing the surface area of the tube and enhancing the turbulence of the fluid flowing through it. This results in improved cooling performance and energy efficiency of the air conditioning system.

  • Water Heater

Inner grooved copper tubes are used in water heaters to enhance the heat transfer efficiency and reduce energy consumption. The grooves on the inner surface of the tube increase the contact area between the heat transfer fluid and the tube wall, resulting in improved heat transfer performance and faster heating of the water.

  • Car Air Conditioner

Inner grooved copper tubes are also commonly used in car air conditioning systems, where they help to enhance the cooling performance and energy efficiency of the system. The grooves on the inner surface of the tube increase the surface area of the tube, improving the heat transfer efficiency and reducing the amount of energy required to cool the air inside the car.


  • Air Conditioner Condenser
    Air Conditioner Condenser
  • Air Conditioner Evaporator
    Air Conditioner Evaporator
  • Water Heater
    Water Heater
  • Car Air Conditioner
    Car Air Conditioner

Inner Grooved Copper Tube Specifications


SpecificationsUnit Weight


(g/m)

O.DI.DBottom Wall Thickness TWFin Groove Depth HFTotal Wall ThicknessApex AngleHelix AngleNumble of Tooth
∅5.00*0.20+0.15-18°3354.30.20,1535401340
∅7.0*0.22+0.10-16*4776.36220.10.32351665
∅7.0*0.23+0.12-17°47.57630230.120.35401765
∅7.00*0.25+0.10-15°5276300.250.135401565
∅7.00*0.25+0.18-18°5776.M0.250.1843401350
∅7.00*0.25+0.22-16°5876.060.250.220.47221654
∅7.00*0.27+0.15-18°6076.160.270.150.42531360
∅7.94*0.24+0.13-18°60.57.947.2240.1337331370
∅7.94*0.25+0.18-18°657.947.030.250.130.43401350
∅7.94*0.25+0.20-18°667.947.040.250.20.45401350
∅7.94*0.26+0.17-18°667.947080.260.1743401350
∅7.94*0.28+0.20-18°727.946.980.230,200.43401350
∅7.94*0.30+0.20-18°767.946.940.30.2504013SO
∅9.52*0.27+0.16-18°829.528.660.270.160.43301370
∅9.52*0.28+0.12-15°809.523720.280.120.4531565
∅9.52*0.28+0.15-18°839.528.660.280.150.43531360
∅9.52*0.28+0.15-25°889.528.660.280.150.43902565
∅9.52*0.28+0.20-18°859.528.560.230.20.43251355
∅9.52*0.28+0.20-18°889.528560.230.20.43401360
∅9.52*0.30+0.20-18°909.528.520.30.250301360
∅9.52*0.30+0.20-18°949.528.520.30.20.5531360
∅9.52*0.34+0.15-25°1049.528.540.340.150.49902565
∅9.52*0.40+0.25-18°1239.523220.40.250.65401360
∅12.00*0.36+0.25-18°1401210.780.360.250.61401870
∅12.70*0.35+0.25-18°1551Z/011.50.35250.6531370
∅12.70*0.40+0.25-18°17012.711.40.40.250.65531370
∅12.70*0.50+0.25-18°20112.711.20.50.250.75531375
∅12.75*0.36+0.21/0.25-20°15012.7511.530.360.250.61482070

Inner Grooved Copper Tube Production Process

The conventional production process:

Inner Grooved Copper Tube Production Process
  • 01
    Cathode
  • 02
    Melting & casting
  • 03
    Milling & Rolling
  • 04
    Combined cascade line
  • 05
    Block spinning
  • 06
    On-line annealing
  • 07
    Inner grooving
  • 08
    Level winding & eddy current inspection
  • 09
    Annealing
  • 10
    Transportation of finished products

Inner Grooved Copper Tube Executive Standard


Product performance standards: GB/T 17791-2007, ASTM B280, JIS H3300, AS/NZS 1571:1995, AS 1432, EN12735-2

Inner Grooved Copper Tube Production Equipments

  • Horizontal continuous casting furnace
    Horizontal continuous casting furnace
  • Face milling machine-copper tube
    Face milling machine-copper tube
  • Three-roll planetary mill
    Three-roll planetary mill
  • Internal thread forming machine
    Internal thread forming machine
  • Rewinding machine
    Rewinding machine
  • Smart warehouse
    Smart warehouse
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