High Strength Energy Absorbing Bolt (E-Bolt)-manufacture,factory,supplier from China

Functions:It  is an effective rock reinforcement system for underground roof support.  If there is rock mass deformation, the paddle part will be worked as  anchor points to bear the load and smooth section will absorb energy to  prevent rock fall.Features&Advantages:1.After fully grouted in the bore hole, the paddle part will work as anchor points.

Key FeaturesMade of hot rolled reinforcing bar which has rib deformationThe Solid Deformed Bar has a standard rolled thread at one endSuitable for using with either resin capsule or groutDiameter 16mm/18mm/20mm/24mm can be suppliedAvailable in black or hot dip galvanizedMechanical Properties-24mmPropertiesMinimumTypicalYield Strength500MPa245kN540MPa260kNTensile Strength630MPa308kN665MPa327kNElongation A%15%20%Mass Per Meter3.61kgsCross Sectional Area460m㎡Bar Core Diameter24.2mmMajor Bar Diameter27.2mRolled ThreadM24X3.0 PitchNut Breakout Torque140-175NmNotes: Tensile strength of thread e

Key FeaturesHigh ToughnessExtra High StrengthResin Anchored BoltProduct has been tested by SGS, WOLLONGONG UNIVERSITYMechanical Properties-22mmPropertiesMinimumTypicalYield Strength600MPa220kN650MPa240kNTensile Strength840MPa305kN920MPa340kNCalculated Sheat Strength240kN260kNElongation A%15%20%Charpy V-notch Impact27Joules Min Mass Per Meter2.98kgsCross Sectional Area370m㎡Bar Core Diameter21.7mmMajor Bar Diameter23.2mmRolled ThreadM24x3.0 PitchNut Breakout Torque130-170NmAccessoriesBearing plate,&nbs

Mesh Strap Key Features:1.High energy absorbing.2.Allows for movement without weakening the integral mesh strength.3.Pig tail cross wire design allows for multiple take upon bolts.4.Available in black or hot dip galvanized.

High Strength Anchor Cable Bolt FunctionsCompared with the common rock bolt,High Strength Anchor Cable Bolt could provide higher tensile strength,anti-shearing capacity and incomparable bending capacity, and could prevent the lateral movement of strata.High Strength Anchor Cable Bolt  Features&AdvantagesHigh Strength Anchor Cable BoltSingle strand or twin strand options availableFish hooks fitted to top of cables for retention prior to groutingResin can be used for instant anchoring,while grout for permanent support                 High Str

Key Features:1.High energy absorbing.2.Allows for movement without weakening the integral mesh strength.3.The longitudinal wire strand is able to slip under load conditions through the  cross wires to distribute load over several bolts.4.Pig tail cross wire design allows for multiple take upon bolts.5.Available in black or hot dip galvanized.            PropertiesTechnical SpecificantionLongitudinal Wire Diameter10mmCross Wire Diameter6mmNominal Length6000mmNorminal Width300mmWire Aperture75mmx150mmYield Strength of Wire400MPa MIN

Wire Mesh Strap Support Features:1.High energy absorbing.2.Pig tail cross wire design allows for multiple take upon bolts.3.Allows for movement without weakening the integral mesh strength.4.The longitudinal wire strand is able to slip under load conditions through the  cross wires to distribute load over several bolts.5.Available in black or hot dip galvanized.

SpecificationSandwich system is used for buffering and releasing the pressure of the rocks to protect the bolts from damaging and breaking. It could increase the elongation of the bolts.Especially match with cable bolts to form a high tensile strength,high elongation and high anti-shearing capacity support system.This system is also match with Full threadbar bolt,Grooved bolt,Sharp end bolt,Slot&wedge bolt and so on.Please contact us if more details.

Key Features:1. Manufactured from high strength full threadbar with a hot forged integral head on one end and the other end has expansion shell.2. Available in left hand or right hand thread.3. Provide the same tensile strength on the entire length.4. Expansion shell bolt with integral head, they are suitable for use in areas where roof is low or when long bolts tails are undesirable.5. Nominal diameter 16mm/18mm/20mm can be supplied.6.

Swellex PM12 Key FeaturesInstallation is rapid and effortlessNo resin or grout is necessaryRemains stable despite blasting vibrations and varying rock strengthsBoasts an extensive expansion range, ensuring even load distribution along the holeDelivers immediate structural supportTwo designs of Swellex PM12> Swellex PM12> New improved Bolt with non-return valve which limits "spring-back" giving increased pull-out resistance and keeps high strength expansion.Item DescriptionTube Thickness(mm)Inflated Bolt Dia(mm)Drill Hole Dia(mm)Minimum UTS(mm)Elongation%Mass/Meter27mm24135-3812

Key FeaturesQuick and easy to installNo resin or grout requiredNot affected by blasting vibrations and rock strengthWide expansion range and load distributed evenly over entire length of holeProvides immediate support                        Two designs of Upgrade Expansion Bolt Swellex Type> Upgrade Expansion Bolt Swellex Type> New improved Bolt with non-return valve which limits "spring-back" giving increased pull-out resistance and keeps high strength expansion.Item DescriptionTube Thickness(mm)Inflated Bolt Dia

Functions:Being used with plate, domed ball,anti-friction washer and nut, Paddle bolt can be an effective rock reinforcement system for underground rock support. Features&Advantages:1.Available in various of bar configuration.2.The paddle configuration in the end of the bolt can ensure the bolt will be in the middle of the bore hole. 3.The paddle configuration will improve resin mixing and consequently provide high bond strength.4. Used for permanent ground support.5.

Grooved Bolt Functions:Being used with plate, domed bolt,anti-friction washer and nut, Grooved Bolt can be an effective rock reinforcement system for underground rock support.Grooved Bolt Features&Advantages:1. Available in various of bar configuration.2. The grooved configuration at the end of the bolt ensures that the bolt is located in the middle of the bore hole.3. The grooved configuration will improve resin mixing and consequently provide high bond strength.4. Using a pin nut device, nut could help drive the bolt to mix the resin.5. Used for permanent ground support.6.

Friction Bolt-33-1200mm FunctionsFriction Bolt-33-1200mm is a frictional ground support system.When bolt is inserted into drilling hole with smaller diameter, the slot partially closes and bolt diameter is compressed, which creates radial forces on rock roof surface along the whole length and firmly holds the rock.Friction Bolt-33-1200mm Features&AdvantagesMade from high strength steel band  Independent supporting without plateEasy for installationImmediate frictional Support in axial and radialSimple design,cost savingAvailable in black,cold galvanizing or hot dip galvanizedFric

Friction Bolt Ground Control FunctionsFriction Bolt(Ground Control) is a frictional ground support system.When Friction Bolt(Ground Control) is inserted into drilling hole with smaller diameter, the slot partially closes and bolt diameter is compressed, which creates radical forces on rock roof surface along the whole length and firmly holds the rock. Friction Bolt Ground Control Features&AdvantagesMade from high-strength steel band  Immediate frictional Support in axial and radialIndependent support without platesEasy for installationSimple design, cost-savingAvailable in black,

Friction Bolt-47-1500mm FunctionsFriction Bolt-47-1500mm is a frictional ground support system.When friction bolt is inserted into drilling hole with smaller diameter, the slot partially closes and bolt diameter is compressed, which creates radial forces  on rock roof surface along the whole length and firmly holds the rock.Friction Bolt-47-1500mm Features&AdvantagesMade from high strength steel band  Immediate frictional Support in axial and radialIndependent supporting without plateEasy for installationSimple design,cost savingAvailable in black,cold galvanizing or hot dip galv

Friction Bolt -39-1800mm FunctionsFriction Bolt -39-1800mm is a frictional ground support system.When friction bolt is inserted into drilling hole with smaller diameter, the slot partially closes and bolt diameter is compressed, which creates radial forces  on rock roof surface along the whole length and firmly holds the rock.                             Friction Bolt -39-1800mm Features&AdvantagesMade from high strength steel band  Immediate frictional Support in axial and radialIndependent supporting wit

Friction Bolt-33-900mm FunctionsFriction bolt  is a frictional ground support system.When friction bolt is inserted into drilling hole with smaller diameter, the slot partially closes and bolt diameter is compressed, which creates radial forces on rock roof surface along the whole length and firmly holds the rock.                      Friction Bolt-33-900mm Features&AdvantagesMade from high strength steel band  Easy for installationImmediate frictional Support in axial and radialIndependent supporting without plateS

Friction Bolt -42-2100mm FunctionsFriction Bolt -42-2100mm is a frictional ground support system.When friction bolt is inserted into drilling hole with smaller diameter, the slot partially closes and bolt diameter is compressed, which creates radial forces  on rock roof surface along the whole length and firmly holds the rock.              Friction Bolt -42-2100mm Features&AdvantagesMade from high strength steel band  Immediate frictional Support in axial and radialIndependent supporting without plateEasy for installationSimple design,cost

Friction Bolt -42-2400mm FunctionsFriction Bolt -42-2400mm is a frictional ground support system.When friction bolt is inserted into drilling hole with smaller diameter, the slot partially closes and bolt diameter is compressed, which creates radial forces  on rock roof surface along the whole length and firmly holds the rock.                                   Friction Bolt -42-2400mm Features&AdvantagesMade from high strength steel band  Immediate frictional Support in axial and radialIndep

Friction Bolt-39-900mm FunctionsFriction Bolt-39-900mm is a frictional ground support system.When friction bolt is inserted into drilling hole with smaller diameter, the slot partially closes and bolt diameter is compressed, which creates radial forces  on rock roof surface along the whole length and firmly holds the rock.                                          Friction Bolt-39-900mm Features&AdvantagesMade from high strength steel band  Immediate frictional Support in

Friction Bolt -39-1200mm FunctionsFriction Bolt -39-1200mm is a frictional ground support system.When friction bolt is inserted into drilling hole with smaller diameter, the slot partially closes and bolt diameter is compressed, which creates radial forces  on rock roof surface along the whole length and firmly holds the rock.                                  Friction Bolt -39-1200mm Features&AdvantagesImmediate frictional Support in axial and radialMade from high strength steel band  I

Friction Rock Bolt FunctionsSplit Set is a frictional ground support system.When friction bolt is inserted into drilling hole with smaller diameter, the slot partially closes and bolt diameter is compressed, which creates radial forces  on rock roof surface along the whole length and firmly holds the rock. Friction Rock Bolt Features&AdvantagesMade from high-strength steel band  Immediate frictional Support in axial and radialIndependent support without plateEasy for installationSimple design, cost-savingAvailable in black, cold galvanizing, or hot dip galvanizedFriction Roc

42mm Friction bolt Functions42mm Friction bolt (Split sets) is a frictional ground support system.When 42mm Friction bolt is inserted into drilling hole with smaller diameter, the slot partially closes and bolt diameter is compressed, which creates radial forces on rock roof surface along the whole length and firmly holds the rock.Features&AdvantagesAvailable in black,cold galvanizing or hot dip galvanizedMade from high strength steel band  Independent supporting without plateEasy for installationSimple design,cost savingImmediate frictional Support in axial and radial