Main material | (1) Copper tube (Inner smooth or inner grooved): O.D7/7.94/9.52, wall thickness: t=0.33--0.35 (2) Bare or hydrophilic Al foil: t= 0.1--0.15; (3) Side plate: zinc electroplating Al plate: t= 0.8--3.0 | Structure | 1P-5P home air-conditioner, Centre air-conditioner | Key process | Tube bending, Punching the fins, Tube expanding, Degreasing and drying, Welding and assemble, Leakage test, Drying, Bending, Inspection, Package | Technical Ability | Specification | Holes distance | Fin type | Expansion ability | Φ7 | 21*12.7 as shape | Flat fin, slit fin, Door fin | 4R * 56 holes * 2500L(max) Fin pitch: 1.1 -- 2.2 mm | Φ9.52 | 25*21.65 25 equilateral triangle shape | Flat fin, Slit fin, V wave fin | 6R * 48 HOLES * 2500L (max) Fin pitch: 1.2 -- 2.5 mm | Φ7.94 | 22*19.05 25 equilateral triangle shape | Flat fin, V wave fin, Door fin | 4R * 36 HOLES * 1200L(max) Fin pitch: 1.2 2.5mm |
| Performance | Can satisfy the capillary requirements | Performance | 3.6 million sets per year (12000 sets per day) |
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