China 47Mm Friction Bolt,Split Set Bolt supplier & manufacturer, offer low price, high quality Mining Bolt,Split Set Rock Bolts, etc.
Split set bolt is also called "Split Set Stabilizer". It was successfully developed by American Professor Scott in the early 1970s. It was used as a patented product by Ingersoll Rand for mining support. In the early 1980s, the Beijing Institute of Well Construction conducted exploratory tests on slotted pipe anchors in the laboratory and achieved good results. Later, it was gradually promoted and applied in the coal system.
Split set bolt is a underground mining support product. It has simple installation process and convenient use. It has strong anchoring force and tensile strength in underground mining and shotcrete support. It has Large force, strong expansion force.
Split set bolt has good supporting effect. Bolt support conforms to modern rock mechanics and surrounding rock control theory in terms of support principles, and belongs to active support. After the bolt is installed, the stability of the surrounding rock can be mobilized and utilized, and the bearing capacity of the surrounding rock can be fully utilized, and controls the deformation of the surrounding rock of the roadway effectively.so split set bolt can protect the stability of the surrounding rock of the roadway and improve the maintenance of the roadway.
Split set bolt has simple installation and labor saving. It uses fewer supporting materials and lighter weight than other bolts. When tunneling, the transportation volume of supporting materials is reduced, and the labor intensity is greatly reduced, which is conducive to improving the efficiency of tunneling.
47Mm Friction Bolt,Rock Anchor Bolts,Rock Bolt Sizes,Friction Rock Stabilizer ANTO MINING EQUIPMENT CO.,LTD , https://www.antobolts.com
Surface Support Buoys
General surface support buoys are extensively used in single point mooring (SPM) system. The three main types are cylindrical buoys, chain-through buoys and pick-up buoys.
Construction of General Surface Support Buoys
Evergreen Maritime general surface support buoys are manufactured with high quality closed-cell PE/EVA resilient foam, encapsulated with self-coloured tough polyurethane elastomer skin.
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A. Laminated closed cell resilient foam core, unsinkable design
General surface support buoys are made with highest quality closed-cel PE/EVA foam. This resilient foam make the buoys self fendering with high impact absorption capacity. Even the skin was punctured, it also is unsinkable without absorbing water. With our unique laminating process, each foam core is integrity. The foam core cannot be ruptured after long time service.
B. Tough nylon filament reinforced polyurethane skin
General surface support buoys' skin is constructed of polyurethane elastomer which is reinforced with nylon filament. The polyurethane skin is unique elastomer specifically for offshore applications. It is high resistance to abrasion, fatigue and ultra violet degradation and is significantly more durable.
C. Steel work and end assembly
Through central steel tube with longitudinal gussets and external load distribution flanges at each end, epoxy coated or hot-dipped galvanized, are encased in a closed-cell urethane foam central body. Optional bail eye, clevis eye, swivel, chain locking plate, single locking pin end fitting are available.
 
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Model NO.: D1x1.55M
Foam Core: EVA Foam
Skin: Polyurethane Skin
Type: Foam Buoys and Fender
Marine Parts: Foam Buoys and Fender
Usage: Lr, ABS, Protection
Certification: BV, ISO9001, CCS
Color: Color
Trademark: Evergreen Maritime
Transport Package: Wooden Packing
Specification: CCS
Origin: China
HS Code: 39269090