Expansion Shell Anchor Rock Bolt

Supreme Machinery is one of the Expansion Shell Anchor Rock Bolt manufacturers and suppliers in China. The price is favorable and the quality is good. We strive to provide customers with satisfactory products and services through our own efforts. If you have questions about product use and functions, you can contact us 24 hours a day. We get in touch.

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Product Description

Supreme Machinery is one of the Expansion Shell Anchor Rock Bolt manufacturers and suppliers in China. Expansion Shell Anchor Bolt acting as an accessory on rock bolt, it is screwed on the rock bolt, then inserted into drilling hole.the rotate the rock bolt until the shell can not be expanded,and the rock bolt tightly fixed in the drilling hole.

Expansion shell is comprised with 2 pcs shells, 1 pc spring,1 pc tapered nut,and connect band.

We manufacture it with hot forging,Punching, Turniung,tapping threads production processes.

Product Name	Rock Bolt, Expansion Shell, Expansion Shell Anchor
Type (Size)	32mm, 35mm, 38mm, 42mm, 48mm
Material	Cast Iron
Finish	Sand Blasting
weight	0.3-0.6KG 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 Mechanical Rock Bolt can be customized based on customer requirements to meet the different needs, such as plastic bag, carton box, wooden case, crate, etc.