HONGTAI pancake coil copper tube is a soft annealed copper tube supplied in compact coil form, widely used in HVAC, refrigeration, and air conditioning installation. The coil structure allows easy transportation, bending, and installation, making it ideal for refrigerant piping and air conditioning line sets. They are manufactured according to ASTM B280, EN 12735, and JIS H3300 standards, Hongtai pancake copper coils ensure excellent pressure resistance, corrosion resistance, and long service life in refrigeration systems.
1 Soft Annealed Copper for Easy Installation
The pancake coil copper tubes from HONGTAI COPPER are fully annealed to ensure excellent flexibility, making each pancake copper tube easy to bend and install in HVAC and refrigeration systems.
2 High Purity Copper Material
HONGTAI pancake coil copper tube is manufactured with high purity copper material to ensure excellent thermal conductivity and corrosion resistance.
3 International Standards Compliance
Available according to multiple international standards:
ASTM B280
EN 12735
AS 1571
JIS H3300
4 Strict Quality Inspection
Each pancake coil copper tube undergoes:
Eddy current testing
Surface inspection
Dimension testing
As leading China copper tube manufacturers, HONGTAI Copper supplies premium pancake coils trusted by global copper pipe wholesale suppliers for HVAC systems.
We supply standard & custom pancake coil copper tube with complete outer diameter and wall thickness specifications for refrigeration, HVAC and heat exchange systems.
Dimension of Pancake Coil Copper Tube | |||||||||||||||||||
| O.D. Inches | O.D. (mm) | W.T. (mm) | |||||||||||||||||
| 0.4 | 0.45 | 0.5 | 0.55 | 0.6 | 0.65 | 0.7 | 0.75 | 0.8 | 0.85 | 0.9 | 0.95 | 1.00 | 1.10 | 1.15 | 1.20 | 1.25 | 1.50 | ||
| 1/8" | 3.18 | O | O | O | O | O | O | O | O | - | - | - | - | - | - | - | - | - | - |
| 3/16" | 4.76 | - | O | O | O | O | O | O | O | O | O | - | - | - | - | - | - | - | - |
| 1/4" | 6.35 | O | O | O | O | O | O | O | O | O | O | O | O | O | - | - | - | - | - |
| 5/16" | 7.94 | - | O | O | O | O | O | O | O | O | O | O | O | O | O | - | - | - | - |
| 3/8" | 9.52 | - | - | O | O | O | O | O | O | O | O | O | O | O | O | O | - | - | - |
| 1/2" | 12.7 | - | - | O | O | O | O | O | O | O | O | O | O | O | O | O | O | O | O |
| 5/8" | 15.88 | - | - | - | - | O | O | O | O | O | O | O | O | O | O | O | O | O | O |
| 3/4" | 19.05 | - | - | - | - | - | - | O | O | O | O | O | O | O | O | O | O | O | O |
| 7/8" | 22.22 | - | - | - | - | - | - | - | - | - | - | O | O | O | O | O | O | O | O |
1.Fit rubber end plugs on pipe ports to isolate air and prevent oxidation and blackening of the copper tube inner wall.
2.Each pancake copper coil is wrapped with heat-shrinkable film externally to protect the surface against dust, moisture and scratches.
3.Put the wrapped copper pancake coil into corrugated cartons. Protective corner guards are arranged at four corners of the carton to cushion collision and extrusion.
4.Avoid violent impact, heavy compression and sharp scratches during handling and transportation. Store in dry and ventilated places to prevent rain and dampness.
5.Limit stacking height to avoid overload and deformation of the bottom cartons.
Residential & commercial air conditioning
Refrigeration: refrigerators, freezers
Heat pump water heaters & solar thermal systems
HVAC heat exchange equipment
On-site air conditioning installation and maintenance
To help customers select the most suitable copper coil for their specific scenarios, we have sorted out the core differences and applicable scenarios between Pancake Coil and LWC Coil as follows:
Pancake Coil
Pancake coils feature a compact, flat coiled structure with lightweight and portable advantages. They are specially optimized for on-site installation, after-sales maintenance and small-batch usage scenarios. The small and flexible coil design makes carrying and on-site handling extremely convenient, with no cumbersome transportation and storage problems. It is the ideal choice for on-site copper tube for AC connection projects, household and commercial air conditioning renovation, equipment maintenance and sporadic small-order demands, perfectly matching the flexible operation needs of engineering teams, maintenance merchants and small-batch purchasers.
LWC Coil
Large Wide Coils adopt a large-diameter integrated coiled design with continuous and uninterrupted pipe length, which is highly compatible with factory automated continuous production lines. Suited for mass and standardized manufacturing scenarios, the LWC copper coil is mainly applied in the formal production and assembly of heat exchangers, refrigeration equipment, HVAC integral units and other mechanical and electrical equipment. It can effectively improve factory production efficiency, reduce pipe connection losses, and meet the stable supply demand of long-term, large-quantity bulk procurement for manufacturers.
Quick Selection Rule
- Choose Pancake Coil: For on-site installation & maintenance, air conditioner connecting pipe projects, small-batch orders, and scenarios requiring portable transportation and flexible construction.
- Choose LWC Coil: For factory continuous assembly production, heat exchanger & refrigeration equipment manufacturing, and long-term large-batch purchasing demands.
20+ years pancake copper tube manufacturing experience
Continuous casting and rolling production line
Yearly production capacity: 100000 tons
Exported to 30+ countries
Every pancake copper coil undergoes strict quality inspection:
Eddy current flaw detection
Chemical composition testing
Mechanical property testing
Pressure resistance testing
Each pancake copper coil sealed with plastic caps
Packed in export cartons
Coil length: 15m / 30m / custom
No. Rubber end plugs prevent air ingress and stop inner tube oxidation and blackening during transit and storage. They can be removed easily without residue, causing no impact on subsequent welding with copper welding rods, flaring and piping connection.
Yes. Each coil is wrapped with heat-shrinkable film for dust, moisture and scratch resistance. Carton four-corner protectors effectively buffer collision and extrusion, fully adapting to long-distance sea shipping and overseas storage.
No. Adopting precision winding technology, our pancake coils feature uniform forming and stable structure. The inner tube wall is smooth without creases or deformation, ensuring smooth refrigerant flow and reliable heat exchange performance.
Yes. Pancake coils have good ductility and flexibility. They can be bent freely on-site to adapt to complex piping layouts, perfectly suitable for narrow installation spaces and irregular construction scenarios.
