Mining and Tunneling Expansion Shell Anchor

Mining and Tunneling Expansion Shell Anchor geometry showing the internal and external forces Eq. (1) indicates that the friction angle for the interface between the cone and the inner leaf surface must be less than the friction angle for the interface between the outer shell and the rock by an amount greater than the taper angle of the cone and inner leaf interface. In many cases, this condition is unlikely to be achieved because anchors are manufactured from cast components with an inherent roughness; the friction angle associated with this less than smooth surface is then often increased following zinc coating.

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Product Description

Product Name	Mining and Tunneling Expansion Shell Anchor
Material	stainless steel, aluminum, steel, copper, brass etc
Color	per customized
Process	CNC machining, casting and assembly for expansion shell anchor
Application	forging parts,mining accessories, industrial, auto parts,etc
Tolerance	can reach to +/-0.01mm
Quality control	100% inspected
Surface	Zinc plating, Blacken, oil rusty etc

Production Process

Machining Workshop

We have full set line of machining facilities, various CNC equipment and Machining Center can meet customers’ requirements. After machining, the casting parts will be completed. Then, they will be inspected and packed for delivery and shipment.

Quality Control

Checking the raw material after they reach our factory------- Incoming quality control

Checking the details before the production line operated

Have full inspection and routing inspection during mass production---In process quality control

Checking the goods after they are finished---- Final quality control

Checking the goods after they are finished-----Outgoing quality control

Packing and Delivery

Packaging of Mining and Tunneling Expansion Shell Anchor can be customized based on customer requirements to meet the different needs, such as plastic bag, carton box, wooden case, crate, etc.