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Project Introduction: Compressor Terminal Welding Machine

Aug 29,2026

Air‑conditioner and refrigerator compressors are the core power assemblies of refrigeration equipment. As key sealing and conductive components, terminals are responsible for circuit conduction and power connection. Conventional welding processes feature unstable heat input and mediocre welding uniformity, which easily cause cold joints, pores, welding leakage, uneven electrical conduction and other faults, further resulting in equipment overheating, refrigerant leakage and abnormal operation.

The Haifei Compressor Terminal Welding Machine is specially developed for welding terminals of air‑conditioner and refrigerator compressors. It can firmly weld power connection terminals onto compressor housings, ensuring excellent electrical conductivity and good sealing performance of joints. It is core production equipment that guarantees safe and stable operation of refrigeration equipment.

I Customer Background and Pain Points

One customer focuses on processing and producing accessories such as compressor terminals for air‑conditioners and refrigerators, as well as sealed conductive terminals. Its products are compatible with various refrigeration compressors.

Pain points of the original welding process:

1.Heat input of conventional equipment is hard to control. Weld penetration varies greatly. Defects such as pores and incomplete fusion easily occur inside welds. After long‑time equipment operation, refrigerant leakage and unstable pressure relief may happen.

2.Conventional welding delivers unstable forming effect with heavy oxidation on welding spots. The compactness of conductive contact surfaces is mediocre, which easily leads to excessive resistance, high temperature rise and poor contact, disturbing circuit operation.

3.Manual clamping and positioning have limited accuracy. Welding positions tend to deviate. Quality varies greatly among batches, and finished‑product compatibility is unsatisfactory.

4.Welding deformation from traditional processes is difficult to control, giving rise to terminal offset and housing deformation.

5.Process parameters cannot be solidified; production data cannot be stored or traced.

II Customer Requirements

1.Adapt to sealed‑welding operations for compressor terminals, optimize weld compactness, mitigate cold‑joint and pore defects, improve sealing performance and reduce refrigerant leakage.

2.Optimize welding heat‑input process, stabilize welding effect, flatten conductive contact surfaces, maintain stable electrification and controllable temperature rise, adapting to long‑term equipment operating conditions.

3.Smoothly control welding deformation, improve terminal offset and housing‑deformation problems, and enhance assembly accuracy of finished parts.

4.Stabilize welding forming quality, unify welding‑spot strength, sealing performance and conductive parameters.

5.Support parameter storage and switching for multi‑specification products; process data shall be storable and traceable.

III Custom‑Developed Solutions

Targeting customer requirements, the dedicated R&D team repeatedly tuned and optimized schemes considering welding difficulties of compressor terminals to make sure deliverables fit customer demands. Details are as follows:

1.Process verification: Conduct multiple groups of welding‑process tests for compressor terminals of different specifications, plate thicknesses and structures.

2.Equipment selection: Adopt the Compressor Terminal Welding Machine. It outputs smooth welding energy with concentrated and even heat input. Welds are full and dense with few pores and favorable sealing performance. Conductive contact surfaces fit evenly to stabilize conductive performance and lower operating temperature rise. It adapts to continuous‑operation conditions of compressors, effectively reducing workpiece deformation and oxidation and keeping terminals in correct positions.

3.Structural design: The complete machine runs smoothly with reliable positioning, suitable for long‑term continuous operation. Exclusive profiling positioning tooling is customized to stabilize workpiece clamping benchmarks and reduce positioning offset and uneven gaps.

4.Core Advantages

Good sealing: favorable air‑tightness, leakage‑proof.

Stable conduction: low temperature rise, smooth operation.

Consistent quality: low deformation, good consistency.

IV Delivery, After‑Sales Service and Customer Feedback

Pre‑acceptance and equipment inspection were carried out. Through continuous trial operation, stable welding pass rate was achieved. After commissioning, all original welding‑related production pain points of the customer were fully solved. Timely, professional and thoughtful after‑sales service won positive comments from the customer.

V Haifei’s Mission of Meeting Customized Customer Demands

Haifei adheres to the philosophy of “Creating Value for Customers”. Everything starts from customer requirements. What are your specific welding requirements? Do you need automation, integration or complete production‑line solutions? Please tell us, and Haifei will carry out targeted equipment R&D and customization for you.