Cast Iron Expansion Shell Expansion Leaves For Mining Roof Support Systems

Cast Iron Expansion Shell Expansion Leaves For Mining Roof Support Systems

Product Details

Application

Expansion shell rock bolt anchors come in a wide variety of styles but the basic principle of operation is the same in all of these anchors. The components of a typical expansion shell anchor are a tapered cone with an internal thread and a pair of wedges held in place by a bail. The cone is screwed onto the threaded end of the bolt and the entire assembly is inserted into the hole that has been drilled to receive the rockbolt. The length of the hole should be at least 100 mm longer than the bolt otherwise the bail will be dislodged by being forced against the end of the hole. Once the assembly is in place, a sharp pull on the end of the bolt will seat the anchor. Tightening the bolt will force the cone further into the wedge thereby increasing the anchor force.

Work Shop

FAQ

Factory Introduction

Sunrise Foundry is a professional Metal Foundry, located in Ningbo. We have been producing Gray Iron,

Ductile Iron Castings and and any other precision castings for more than 25 years.

We are dedicated to meet different requirements of various customers across the world, products are mainly

involved Agricultural and Construction Machinery, Hydraulic, Mining industry, Municipal Products, some steel

and stainless steel castings for Pumps and Valves, Pipe Fittings, etc.

Please feel free to contact us if you have any requests.

Products We’ve Made

We divide our products into several categories. Gray Iron Casting, Ductile Iron Casting, Steel Casting, Stainless

Steel Casting for Scaffolding Accessories, Post Tension Anchorage, Automotive Part, Pump and Valve Body,

Pipe Fitting, Manhole Cover and Bollard, Ornamental Fence and Spear, Light Pole and Bench Casting, Railway Part.

Our Capability

We have updated our production line. Our production process include Resin Sand Molding Line, Shell Molding Line,

Wet Green Sand Casting and Lost Wax Investment Casting Production Process.

Quality Control

Quality Control is one of the most important process in production. We insist that 100% inspection before

shipment and ensure parts without any flaws when sending out.

We have complete quality inspection facilities including mechanical testing, chemical analysis, tensile strength,

hardness, spectrometer, ultrasonic testing, etc.

Certification