Mobile Tube Expander Machine for Heat Exchanger Coils

I. Equipment Application

This equipment is a dedicated tube-expanding machine for air conditioning heat exchanger coils. Its core purpose is to complete the tube-expanding process for copper pipes in air conditioning heat exchanger coils. In the air conditioning heat exchanger production process, the tube-expanding process is a crucial step in ensuring the heat exchanger's sealing performance and heat exchange efficiency. Through precise tube-expanding operations, the copper tube ends or designated sections can be accurately expanded in diameter, ensuring a tight fit and stable assembly between the copper tubes and the heat exchanger tube sheet, end caps, and other components. This effectively prevents problems such as refrigerant leakage and uneven heat exchange during operation. This equipment is widely applicable to the processing of heat exchanger coils for various air conditioning products, including residential split air conditioners, central air conditioners, and commercial cabinet air conditioners. It is one of the core supporting equipment for the large-scale production of air conditioning heat exchangers.

 

 

II. Core Technical Parameters

 

- Compatible Copper Tube Diameter: Φ7-Φ25mm: This parameter covers the commonly used copper tube specifications for mainstream air conditioning heat exchanger coils. Whether it's the small-diameter copper tubes (e.g., Φ7mm, Φ9.52mm) for small residential air conditioner heat exchangers or the large-diameter copper tubes (e.g., Φ19mm, Φ25mm) for commercial central air conditioning heat exchangers, precise adaptation is achieved.

 

- Tube Expansion Length: Customized to Demand (Based on Buyer Needs): To accommodate the structural differences in coils of different air conditioning heat exchanger models, the equipment supports personalized customization of the expansion length. Through an intelligent control system and adjustable mechanical limit structure, the expansion length can be precisely controlled from a few millimeters at the end to long sections of tens of centimeters, perfectly matching the assembly requirements of different heat exchanger specifications. This ensures a high degree of consistency between the expansion process and product design parameters, guaranteeing consistency in mass production.

 

- Tube Expansion Speed: 5-11 meters/minute: The equipment adopts a high-efficiency power transmission system and optimized expansion mechanism design to achieve high-speed and stable tube expansion operations.

 

III. Equipment Design

 

To adapt to the production capacity needs, workshop conditions, and product specifications of different air conditioning manufacturers, the equipment adopts a modular, multi-station design concept, offering four models: single-tube, double-tube, four-tube, and six-tube, achieving a precise match between production capacity and cost:

 

- Single-tube model: Utilizing a single-station, single-channel design, it features a compact structure and small footprint (requiring only 2-3㎡ of operating space), and is simple and easy to operate.

 

- Double-tube model: Employing a dual-station parallel operation design, it can simultaneously complete the expansion of two copper tubes, nearly doubling the production capacity compared to the single-tube model. The equipment balances production efficiency and site compatibility, making it suitable for medium-batch air conditioning heat exchanger manufacturers, such as small-to-medium-sized production lines for household air conditioners. It is a cost-effective choice balancing production capacity, cost, and space.

 

- Four-tube model: Equipped with a four-station synchronous operation system and an automated feeding and positioning mechanism, it can achieve simultaneous and precise expansion of four tubes. Production efficiency is significantly improved, making it suitable for large-scale standardized production scenarios.

 

- Six-tube model: Featuring a six-station integrated design, equipped with a high-efficiency intelligent control system and a high-precision synchronous drive mechanism, it can achieve simultaneous tube expansion operations for six tubes. This model offers significant capacity advantages, with a single-shift capacity approximately six times that of the single-tube model.