Fittings for Tunnel Segments
- Commodity name： Fittings for Tunnel Segments
- Description
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Tunnel Segment Bolt Types
Usually tunnel segment bolts are divided into 6 types, namely: hexagonal head arc segment bolts, non-standard segment bolts, double-ended straight segment bolts, double-ended arc segment bolts, hexagonal flange face circle Arc thread segment bolts, hexagon head arc thread segment bolts. In addition, the segment connecting bolts can also be classified according to the stress. There are usually 3 grades, namely: 5.8 machine (material is Q235), 6.8 (material is 45#), 8.8 (material is 40Cr) ), in which the surface treatment is galvanized.
Arc Hex Head Joint Bolt
Arc Hex Head Joint Bolt Round Thread
Arc Stud Joint Bolt
The tunnel segment bolts can assemble several segments together. Some of the segments have a certain arc, and some are straight. The connection and fastening between segments depends on the action of segment connection bolts. The application range of segment connection bolts It is widely used in building segment connection, shallow buried longitudinal segment bolt, Subway Line shield, Subway Line segment connection, tunnel segment connection and other projects.
Dimension Arc Length mm Tensile Strength Surface Treatment M25～M39 480～880 4.6、4.8、5.6、5.8、8.8 Dacromet, Hot dip Galvanized Dimension Arc Length mm Tensile Strength Surface Treatment M25～M48 480～880 4.6、4.8、5.6、5.8、8.8 Dacromet, Hot dip Galvanized 
Our Services
For standard railway parts, we manufacture and deliver fast.
For customized parts, we could take measurements on your samples and make drawings, manufacture all railway and some construction fasteners as below:
Rail Elastic Clip and Rail Clamp, High Tensile Bolt with Nut and Washer, Rail Base Plate, Tie plate, Rail Chair, Rail Fish Plate, Fish Bolt with Nut and Washer, Rail Shoulder, Rail Screw and Spike, Rail Insulator, Rail Plastic Dowel, Aluminum Vortok Sprial, Rubber and EVA Pad, Rail Crane Rail and Light Rail, Steel Sleeper, Auto Bolt, Fundation bolt/Segment Bolt, Huck Bolt and Other spare parts.
Company Information
Kunshan Alex Railway Fastening Co., Ltd manufactures nearly all kinds of railway fasteners and various standard rail car components. As one of the leading railway fasteners manufacturer in China, we are ISO 9001:2015 certificated, with our skilled workers, sufficient processing capacity and professional service, our products have been widely exported to North America, South America, Japan, Korea, Germany, Spain, Italy, Belgium, Poland, Kazakhstan, Pakistan, Australia, India, Indonesia, Srilanka, Mongunia and South Africa etc.
Except some standard railway fasteners, which can be provided in very short time, all products can be customized according to customers' drawings and samples. Our main products are as follows:
1. Railroad spike/Screw spike/Coach screw/Drive screw/Sleeper Screw, Track spike/Cut spike/Dog spike/Lock spike/,etc.
2. Rail clip/ Tension clamp/ E clip/ PR clip/ SKL clip/ elastic clip/ Deenik clip/Russia clip
3. Track bolt/ T bolt / Rail bolt/ Clamp bolt/ Inserted bolt/ Clip bolt/ Fish bolt/ Square bolt/ Rod bolt /Rail joint bolt
4. Swivel Bolts/ U bolts/ J bolts/ Anchor bolts/ Foundation bolts/ Stud bolts/ Rod bolts/ Curved segment bolts/ Tunnel bolts
5. Rail chair/ Tie plate/ Base plate / Rail plate/ Rail fixing base
6. Fish plate / Joint bar / Rail joint/ Splice Bar
7. Clamp plate/ Rail spring clamp/ Anchor plate/ Steel clip/ Nabla clip/ RN clip
8. Rail Shoulder/ Rail sleeper Inserts/ Rail Anchors for rail sleepers
9. Rail insulator/ Rail plastic dowel / Guide plate/ Nylon insert/ Aluminum Vortok Sprial
10. Rail Pads/ Sole plate/ Sole pad
We want to assist customers to maintain a competitive advantage in the construction and maintenance of railways, to improve customer service efficiency.
Key words:
Tunnel and port dock crane rail fasteners
We are a professional manufacturer of railway and train bogie accessories, providing various railway custrction and maintenance parts, train bogie & brake system parts, and tunnle & crane rail customized parts.
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