Sandvik DD211L is a low type single arm electric hydraulic driving trolley, roadway in roof height is only 1.7 meters within the excavation work.

The sturdy universal drill arm has the best cross sectional shape and large coverage, and can be turned over 360 degrees and automatically flat, so that the trolley can be rapidly and easily cross cut. The large arm can also drive Shimen laterally, and the hose is specially designed to be protected to the greatest extent at a lower position.

The special V - type layout provides a good driver view and body balance, plus a strong four wheel drive articulated chassis, which ensures that the trolley can travel fast and safely even in very low roadways.

High performance rock drilling system has good drilling equipment economy and equipment reliability while achieving high efficiency drilling. The comfortable operating environment and various automatic functions enable the operator to concentrate on safe, rapid and accurate drilling operations.

Hubei three Ning Mining Co. Ltd. operates one phosphate rock, orebody features a flat structure, in March 2016 the introduction of a Taishan Sandvik DD211L driving car, with drilling system with high performance and safety features practical, flexible and lightweight DD211L driving trolley in the roadway 3.5 meters high in the challenge to help Hubei three thin ore body mining, mining Ning Ltd. is located in the Yichang river water to meet the challenging needs of phosphate rock.

"In order to improve the utilization ratio,

The exploitation of thin ore bodies has always been a difficult problem for us.

The low type trolley aims at thin ore body and mining rock drilling,

The efficiency is very high and the practicability is very strong."

- Li Yong, deputy general manager of Hubei three Ning Mining Co., Ltd.

"What we are using now in the mine is..."

The strip mining backfilling method,

According to the variation of our present seam,

Some seams are getting thinner and thinner,

Accordingly, the equipment requirements will be more and more low,

DD211L is more suitable for our current production."

- Bian Fenglei, Captain Hubei three Ning mining limited water river rock mechanized mining team

First, it reduces the security risk,

Second is to reduce the labor intensity of personnel,

Third is to improve the efficiency of the operation."

- Bian Fenglei, Captain Hubei three Ning mining limited water river rock mechanized mining team

"More flexible in the underground, the fast drilling trolley,

For us, the hours of work are short,

Relative breaks take longer."

Zhang Zhaochen, Hubei three Ning mining limited water river phosphate mechanized mining team operator

The speed of rock drilling is greatly improved,

Each hole is about 40 seconds to 1 minutes,

This efficiency is very high."

- Li Yong, deputy general manager of Hubei three Ning Mining Co., Ltd.

"DD211L's efficiency is equivalent to the efficiency of 36 traditional workers."."

- Li Yong, deputy general manager of Hubei three Ning Mining Co., Ltd.

"In the product range belongs to the low type trolley,

A vein suitable for thin beds and gentle slopes.

DD211L walking is diesel, and work is electric.

Diesel is more convenient when you walk,

Electricity during work.

One is to reduce underground pollution,

The work efficiency is higher, and the cost is lower."

Guo Dehai, Sandvik mining and rock Technical Sales Manager