主要用于市政施工中窨井蓋的設(shè)置，開啟和維系工作。窨井蓋是鑄件，厚重且安裝封閉，由于冰霜和道路損壞需要更換和修理時，需要耗費很長的時間并且耗費很大的人力和物力來將其松動撬開，這給市政施工工作和交通管制增加了昂貴的成本。井蓋銑刨器的誕生和運用使得更換和修理窨井蓋工作變得輕松快速，節(jié)省人力物力，大大提高了工作效率節(jié)省了維修和管理成本。是一款理想的公路維修和市政管理工具。

It is mainly use in municipal construction project, used for cutting and repairing manhole cover. Until now, manhole castings that needed to be replaced or repaired due to frost damage, settlement or the results of extreme traffic, had to be cut loose by the use of tiresome and expensive labor. It took several hours to complete one single unit. The cost of equipment, labor and traffic control were extremely high. With HCN manhole cutter, the production on this type of repair work is increased significantly. Again, back injuries are reduced dramatically. It’s really an ideal tool for road maintenance and municipal construction project.