About Lin Sing
Lin Sing has manufactured ductwork and fittings for the Hong Kong market from its Huizhou plant since 1997. Over three decades, 361 Hong Kong projects have been built with Lin Sing product — public housing, schools and hospitals through to railway stations, airport facilities and shopping centres.
Production is concentrated on a single site: fibre laser cutting, forming, flange assembly, inspection and packing all happen on one line. That arrangement is what lets us take non-standard sizes and hold to a delivery date.
Corporate structure
StructureLin Sing operates through two entities, covering Hong Kong commercial activity and Mainland manufacturing respectively.
Lin Sing Asia Limited
Contracting entity — Hong Kong sales, quotations and contracts
852-2130 9197 · 852-6819 7352
Lin Sing Asia Air Conditioning Equipment (Huizhou) Co., Ltd.
Manufacturing plant
Jinxing Management District, Tongqiao Town, Huicheng District, Huizhou, Guangdong, China
0752-3796832 · 0752-3796030
Plant & equipment
PlantEight principal machines cover every step from flat-sheet cutting to finished seam closing.
Fibre laser cutting machine
Levelling & beading machine
Spiral duct forming machine
Rollformer
Manual folding machine
Hydraulic press brake
Flange forming machine
Automatic Pittsburgh seam closer
Production process
ProcessEleven steps from order intake to despatch, with two inspection gates.
- 01Order intake
- 02Order review
- 03Production preparationSchedulingMaterial preparation
- 04CNC cutting
- 05Fabrication
- 06In-process inspectionQC
- 07Assembly
- 08FinishingInsulationPainting
- 09Final inspectionQC
- 10Packing
- 11Despatch