A brief introduction of Eccentric Casing system:

1. When drilling starts,the reamer swings out and reams the pilot-hole wide enough

for the casing tube to slide down behind the drill bit assembly.

2. When the required depth is reached,rotation is reversed carefully.where upon the reamer

swings in,allowing the drill bit assembly to be pulled up through the casing.

3. Casing Tubes are to be left in the drill hole should be sealed at the bottom of the hole by means of cement grout or some other sealing agent.

4.Drilling continues to the desired depth in the bedrock using a conventional drilling.

Place of Origin:	Hunan China (Mainland)	Brand Name:	Great Wall	Model Number:	Eccentric casing system with 3 pieces
Material:	Carbide + Alloy Steel	Processing Type:	Forging	Machine type:	Drilling Equipment
MOQ	No MOQ	Use:	Ore mining,well drilling,quarrying,ect	Certification:	ISO9001:2008
Production capacity	3000 set/sets per Month	Packaging Detail:	Standard export carton,or as per request	Port	Chang Sha

Specification:

Features:

1. Efficient energy transfer.

2. Longer service life.

3. Faster drilling speed.

4. Optimization design for each part reduces the probability of accident..

﹡About Us:

1. Our factory has been specialized in manufacturing & exporting drilling tools and spare parts over 10 years.

2. We have advanced technology and equipment.

3. Our technician has more than 10 year's professional working experience.

4. Our products are exported throughout the world. Main market:Russia,USA,South Africa,Canada, Australia, Brazil, Uruguay, etc.

﹡Questions you may be interested in:

1.Payment:  T/T,Western Union,Paypal

2.Delivery time:  Based on your order qty, generally it takes 15-20 days for

production.only need 2 or 3 days if it's available in our stock.

3. Shipment:

Trail order: we suggest by DHL,express

Bulk order: we suggest by sea.

4.Quality control:  We have our experienced QC Dep.

They will perform stick inspection and tesing for every order before shipping out.

5.  About aftersale services

Our sales team and technical Dep. Will be available at any time.(Holidy excluded)