Expansion Shell Rock Bolt Rock Support Bolt Mechanical Rock Support Bolt

Description

Expansion shell bolts are a common style of area ground support. A point anchor bolt is a metal bar between 20 mm – 25 mm in diameter, and between 1 m – 4 m long There is an expansion shell at the end of the bolt which is inserted into the hole. As the bolt is tightened by the installation drill the expansion shell expands and the bolt tightens holding the rock together. Mechanical bolts are considered temporary support

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Related Products

Expansion shell, rock bolt, bearing plate, washer, mechanical bolt, coupling bolt.

Our Advantages

1. Our factory has been making mining and building accessories for more than 25 years.

2. We are manufacturer. Direct communication with our engineer.

3. We can forging and casting parts as per your drawing and technical requirements.

4. Quality certificate: SGS ISO9001, TS16949, CE.

5. All of our parts are 100% inspection.

6. The price is very reasonable with superior quality.

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