As domestic high-tech precision technology advances rapidly, the lifting industry has quietly grown alongside specialised technology fields. Cranes, with their steel-like arms, now incorporate high-precision automated intelligent manufacturing. Delivery of China's first cleanroom explosion-proof fully automatic crane gives industries such as electronics, pharmaceuticals and precision machinery a foundation for intelligent, environmentally friendly development.
The crane developed by the company is used by an enterprise in Jiangsu that mainly produces semiconductor-grade polysilicon. The workshop requires a dust-free design with air cleanliness class 4 (national standard class 7) — no more than 10,000 particles of 0.1 μm per square metre — and contains flammable and explosive gases, so the crane has explosion-proof rating dIICT4.
To meet process requirements, the crane can move reduction furnaces and silicon rod tools automatically along a set route between the reduction furnace platform, cleaning platform, transfer platform and rod removal tools, with precise positioning.
The machine uses wear-resistant and corrosion-resistant materials extensively, and a dust collection device effectively reduces particles generated by friction during operation, improving productivity and filling a gap in crane applications in China's semiconductor industry.
Developing this type of crane has earned us 16 invention patents, making us one of the few domestic companies qualified to produce cleanroom explosion-proof fully automatic cranes. It offers the following advanced technologies: highly sealed explosion-proof drive mechanisms and maintenance-free self-lubricating bearings; compact integration of motor, gearbox, brake and electrical monitoring; a main structure of high-strength alloy steel, with rotating, protective and connecting parts made of stainless steel.

Product features

• Cleanroom dust control High-pressure anti-static spraying and sealed structural welding give the machine non-stick, non-dusting properties. Iron and ash particles and lubricating oil that may arise unexpectedly during operation are removed automatically by permanent-magnet mechanisms, explosion-proof electric dust collectors and mechanical oil trays. This superior configuration also delivers an exceptionally quiet working environment.

• On top of cleanroom intelligence, explosion-proof protection adds a further highlight: every movement in any space is in an explosion-proof state, making crane operation more reliable.

• Fully automatic unmanned operation, anti-sway automatic precise positioning and automatic hooking and unhooking use electronic laser reading of bar-coded positioning to achieve accuracy below one millimetre, so any workstation in the working range can be precisely positioned. Human-centred functions include automatic fault alarms, automatic fault cause detection and component life alarms.

In recent years, while expanding production of single and double girder cranes, the company has increased R&D and production of container cranes, heavy-tonnage and long-span cranes, highly intelligent remote-monitoring cranes, all-terrain cranes and energy-saving environmentally friendly cranes. Aiming at special-purpose, lightweight, intelligent and high-end equipment, it is moving its product model from conventional lifting to new-generation lifting and from general cranes to special intelligent equipment.