Hard rock mining

BEST-IN-CLASS SOLUTIONS.

Minova is a leading manufacturer of products used in underground hard rock mines. Our solutions support safe and optimal ore recovery, support with cavity and void filling, ground control, provisions for managing water ingress and air control. All of which would threaten the safety and viability of an operation and its personnel. We have helped customers for more than 17 years. Download and read about our partnership with Round Oak Minerals and how we helped their Bentley Underground Mine maximise the recovery of stopes. We were able to redesign their stopes to extract the rib pillars and mine the entire sill pillar.

Ore Recovery Optimisation

Many hard rock mines have sterilised rich ore left behind in vertical and horizontal pillars. With the placement of backfill adjacent to these resources, our solutions support safe and optimal ore recovery operations .

Ore Recovery Optimisation applications
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Ground Control

Ground Control is fundamental to the integrity and safety of underground mining operations.

Ground Control applications
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Ground Control

Ground Control is fundamental to the integrity and safety of underground mining operations.

Ground Control applications
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Ground Control

Ground Control is fundamental to the integrity and safety of underground mining operations.

Ground Control applications
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Ground Control

Ground Control is fundamental to the integrity and safety of underground mining operations.

Ground Control applications
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Water control

Water ingress into an underground mine can represent a major risk if not recognised and rectified.

Water control applications
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Gas & Ventilation Control

Adequate ventilation is a necessity to maintain air quantity and safety.

Gas & Ventilation Control applications
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Gas & Ventilation Control

Adequate ventilation is a necessity to maintain air quantity and safety.

Gas & Ventilation Control applications
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Cavity & Backfilling

Increasing pressure from mining activity and variable geotechnical conditions can cause fractured ground, which if not supported, may lead to incidents of rock fall or roof collapse.

Cavity & Backfilling applications
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Cavity & Backfilling

Increasing pressure from mining activity and variable geotechnical conditions can cause fractured ground, which if not supported, may lead to incidents of rock fall or roof collapse.

Cavity & Backfilling applications
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Cavity & Backfilling

Increasing pressure from mining activity and variable geotechnical conditions can cause fractured ground, which if not supported, may lead to incidents of rock fall or roof collapse.

Cavity & Backfilling applications
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Ore Recovery Optimisation

Artificial rockfill pillars

Since 2001, Minova have invested technology and resources into developing the correct methodology and perfect product to form an artificial rockfill pillar.

Product title
FB200

Low viscosity, high yield grout used for rockfill consolidation and ventilation seals. Supplied as a ready to use free flowing blended cementitious powder that only requires the addition of water in a suitable placing machine. 

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Product title
TEKSEAL™

High yield, long life foaming grout primarily used for ventilation applications and cavity filling. Supplied as a ready to use free flowing blended cementitious powder that forms cement foam on mixing with water in a purpose designed placer.

Uses include explosion resistant ventilation seals, recovery of longwall face falls, backfilling behind steel sets, recovery of falls, rib stabilisation and general void filling.

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Ground Control

Anchoring

Steel and glass fibre reinforced polymer bolting products and accessories to stabilise even the most stressed ground.

Product title
FRICTION (STRATA) BOLTS

Friction bolts have been used internationally in mining for decades and are considered the simplest form of ground support available in metal mining. Compression of the high tensile steel "C" shape into a hole diameter smaller than the tube generates a load transfer from the steel to the rock. A steel ring is fixed to the collar end of the tube that will retain a plate on the installed tube to establish compressive force against rock.

Available in either black or hot dip galvanised. Variety of diameters (34 mm, 40 mm and 47 mm) and various lengths from 600 mm to 3,000 mm

Used in the development and production headings for immediate support with quick and easy installation.

 

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Product title
SOLID (SECURA) BOLTS

The Secura Bolt is a solid reinforcing bar for use in strata environments of underground mines. Design includes a unique paddle system to improve resin mixing and resin film shredding. Consistent and efficient mixing of resin capsule components provide higher bond strength in large diameter boreholes  

The solid reinforcing bar is threaded at one end with a high strength R thread profile, including a modified rope thread with large root and small crest areas. A torque nut is attached at this end. Available in various lengths and can be supplied black or hot dip galvanised.

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Surface control

Surface support coverage providing increased safety.

Product title
MESH

Mesh provides surface support coverage to loose rock between installed rock bolts in underground mining excavations. Multiple configurations of mesh is available including numerous sheet sizes, apertures, wire diameters and black or galvanised wire.

Ausro straps are yielding straps which allow the straps to yield under load conditions allowing better load distribution between bolts. Ausro straps are used in unstable ground conditions where seismic activity is present, to improve surface support and ensure better connection between the surface support and bolts.

We are a distributor for ASW mine mesh and supplies including welded mesh and AUSRO straps. 

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Product title
FRICTION (STRATA) BOLTS

Friction bolts have been used internationally in mining for decades and are considered the simplest form of ground support available in metal mining. Compression of the high tensile steel "C" shape into a hole diameter smaller than the tube generates a load transfer from the steel to the rock. A steel ring is fixed to the collar end of the tube that will retain a plate on the installed tube to establish compressive force against rock.

Available in either black or hot dip galvanised. Variety of diameters (34 mm, 40 mm and 47 mm) and various lengths from 600 mm to 3,000 mm

Used in the development and production headings for immediate support with quick and easy installation.

 

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Product title
STEEL & MESH ACCESSORIES

In addition to a complete range of steel and chemical components, we can provide an extensive and complimentary range of accessories for steel strata support requirements.

Our range of accessories include:
• Strata Straps
• Mechanical Anchors
• Mine Nuts
• Couplings
• Pull Collars

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Chemical injection

Injection chemicals used for stabilising, sealing and consolidating the ground.

Product title
BEVEDOL® / BEVADAN®

Bevedol® / Bevedan® is a two component, foaming polyurethane (PUR) injection system used to consolidate highly convergent strata. The system consists of a resin (Bevedol®) and a catalyst (Bevedan®) which is delivered into the strata via a pump unit and injection gun. The two components mix in the gun, which initiates the reaction of the product. The low viscosity mixture penetrates the smallest fissures, hardens and ensures the consolidation and sealing of the area submitted to treatment.

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Product title
CARBOFILL®

Carbofill® is a two component phenolic foam resin used for filling cavities. Component A is an aqueous phenolic resins containing a suspension of solid carbonates as a blowing agent and Component B is a blend of various acids which affect the foaming process and the curing reaction.

The final product is a lightweight material with a yellow to pink colour. Ideal for filling of cavities in underground roadways and longwalls and the stabilisation and prevention of gas accumulation, stabilisation of debris and forming temporary plug seals.

 

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Product title
CARBOMINE®

Carbomine® is a two component resin injection system used to consolidate fractured strata and prevent the ingress of water. Carbomine Part A is an alkaline phenolic resin with additives, which reacts with Carbomine Part B to a tough hard resin. Carbomine Part B is a modified ester component. Free of CFC's and halogen this fast reacting, alkaline phenolic resin system is ideal for solidification of large loosened, dry or slightly moist strata zones. 

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Sprayed coatings & membranes

Sprayed coatings and membranes provide additional ground support and waterproofing solutions.

Product title
RAPPASS®

Rappass offers high performance, abrasion resistance and rapid strength. Rappass C, a special concrete mix requires the addition of water to produce a flowing concrete consistency. Rappass GD is a specially blended cement that is applied by dry shotcrete processes. Uses include lining ore passes, outfalls, spill ways, draw points, crushers and chutes.

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Product title
SPRAYPLAST

Supplied as a pre-packaged coarse dry powder in 20kg bags. Sprayed with the addition of water using dry shotcrete process. Sprayplast can also be used for scat control and ventilation control.

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Product title
TEKFLEX®

Cement based spray material designed with excellent flexibility, high tensile strength and excellent adhesion qualities. Tekflex powder is added to Tekflex liquid through a specially designed pump system for a continuous mixing and spraying operation.

Used to permanently stabilise the integrity of rock structures while accommodating the stresses associated with strata movement and providing a barrier to moisture degradation. Tekflex was developed for specific use as an alternative to the use of steel mesh for scat control in underground mining excavations.

 

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Grouting

Resin capsules and cementitious grouts stabilise rock and provide support when you need it most.

Product title
FB400

High strength, thixotropic anchoring grout. Ready to use, free-flowing, blended cementitious powder that only requires the addition of water in a high shear mixer, to produce a highly thixotropic grout. Product variant available with enhanced corrosion protection (FB400C).

 

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Product title
CARBOTHIX®

Two component grouting resin for cable bolt anchoring and self drilling bolts. An instantly thickening, fast curing, two component silicate resin for high strength bonding of solid bolts and cable anchors. The final mixture thickens very quickly to form a tough, interpenetrating non porous elastic silicate. This minimises leakage from the bolt hole, displacing drilling water helping ensure full encapsulation.

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Water control

Chemical injection

Injectable products and systems used for water control in the mining environment.

Product title
BEVEDOL® / BEVADAN®

Bevedol® / Bevedan® is a two component, foaming polyurethane (PUR) injection system used to consolidate highly convergent strata. The system consists of a resin (Bevedol®) and a catalyst (Bevedan®) which is delivered into the strata via a pump unit and injection gun. The two components mix in the gun, which initiates the reaction of the product. The low viscosity mixture penetrates the smallest fissures, hardens and ensures the consolidation and sealing of the area submitted to treatment.

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Product title
TEKFLEX®

Cement based spray material designed with excellent flexibility, high tensile strength and excellent adhesion qualities. Tekflex powder is added to Tekflex liquid through a specially designed pump system for a continuous mixing and spraying operation.

Used to permanently stabilise the integrity of rock structures while accommodating the stresses associated with strata movement and providing a barrier to moisture degradation. Tekflex was developed for specific use as an alternative to the use of steel mesh for scat control in underground mining excavations.

 

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Sprayed coatings & membranes

Sprayed coatings and membranes help control water underground.

Product title
RAPPASS®

Rappass offers high performance, abrasion resistance and rapid strength. Rappass C, a special concrete mix requires the addition of water to produce a flowing concrete consistency. Rappass GD is a specially blended cement that is applied by dry shotcrete processes. Uses include lining ore passes, outfalls, spill ways, draw points, crushers and chutes.

Explore Product
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Product title
SPRAYPLAST

Supplied as a pre-packaged coarse dry powder in 20kg bags. Sprayed with the addition of water using dry shotcrete process. Sprayplast can also be used for scat control and ventilation control.

Explore Product
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Product title
TEKFLEX®

Cement based spray material designed with excellent flexibility, high tensile strength and excellent adhesion qualities. Tekflex powder is added to Tekflex liquid through a specially designed pump system for a continuous mixing and spraying operation.

Used to permanently stabilise the integrity of rock structures while accommodating the stresses associated with strata movement and providing a barrier to moisture degradation. Tekflex was developed for specific use as an alternative to the use of steel mesh for scat control in underground mining excavations.

 

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Gas & Ventilation Control

Sprayed coatings & membranes

Products that provide excellent stoppings and sealing solutions.

Product title
RAPPASS®

Rappass offers high performance, abrasion resistance and rapid strength. Rappass C, a special concrete mix requires the addition of water to produce a flowing concrete consistency. Rappass GD is a specially blended cement that is applied by dry shotcrete processes. Uses include lining ore passes, outfalls, spill ways, draw points, crushers and chutes.

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Product title
SPRAYPLAST

Supplied as a pre-packaged coarse dry powder in 20kg bags. Sprayed with the addition of water using dry shotcrete process. Sprayplast can also be used for scat control and ventilation control.

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Ventilation seals & barriers

Our seals and barrier systems include proven explosion proof performance of plugs, seals and stoppings.

Product title
FB200

Low viscosity, high yield grout used for rockfill consolidation and ventilation seals. Supplied as a ready to use free flowing blended cementitious powder that only requires the addition of water in a suitable placing machine. 

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Product title
TEKSEAL™

High yield, long life foaming grout primarily used for ventilation applications and cavity filling. Supplied as a ready to use free flowing blended cementitious powder that forms cement foam on mixing with water in a purpose designed placer.

Uses include explosion resistant ventilation seals, recovery of longwall face falls, backfilling behind steel sets, recovery of falls, rib stabilisation and general void filling.

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Product title
SPRAYPLAST

Supplied as a pre-packaged coarse dry powder in 20kg bags. Sprayed with the addition of water using dry shotcrete process. Sprayplast can also be used for scat control and ventilation control.

Explore Product
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Grouting

High volume, pumpable grouts used to improve gas and ventilation control.

Product title
CARBOFILL®

Carbofill® is a two component phenolic foam resin used for filling cavities. Component A is an aqueous phenolic resins containing a suspension of solid carbonates as a blowing agent and Component B is a blend of various acids which affect the foaming process and the curing reaction.

The final product is a lightweight material with a yellow to pink colour. Ideal for filling of cavities in underground roadways and longwalls and the stabilisation and prevention of gas accumulation, stabilisation of debris and forming temporary plug seals.

 

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Ventilation Control Devices

Largest range of tested explosion rated ventilation control devices.

Product title
STEEL FABRICATIONS

For more than 20 years we have engineered, designed, supplied and installed steel ventilation control devices (VCD's).

Our steel VCD products and service solutions are customised to suit our customer’s site specific requirements and engineered to conform with the requirements of underground coal mine legislation. Our focus is to continually offer VCD product designs which are safe to handle and improve installation times. All VCD’s are equipped with convenient and rated lifting points, allowing easier and safety handling during installation.

To ensure the longevity of our products, all steel structures are sand blasted and coated with a high build acrylic resin applied directly to the bare steel as a combined primer and topcoat. Two-coat epoxy paints and galvanizing can be also provided on request.

We supply overcasts, machine doors (vehicle doors), man-doors, coffin seals, access hatches for seals, air-locks and consumables. We also provide 2, 5, 20 and 50 psi rated steel VCDs including consumables cast into stoppings, goaf seals and formwork systems (Tecmesh and Meshblock).

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Product title
AIR FLOW REGULATORS

To help ensure clean air in underground mines we offer a range of solutions that include automatic airflow regulators, secondary air control and plastic regulator drop boards.

In 2005 we developed a revolutionary new automatic airflow regulator, Blastflow®, for Hard Rock mines that can be retrofitted to existing regulator sites. Secondary fans can be combined with automated Blastflow regulators to allow the mine to control where and when air is placed. Ventilation on Demand (VOD) allows an underground mine's ventilation circuit to be electronically controlled delivering airflow efficiency, reduced electricity and rapid access to production areas.

To control air flow at stope accesses and draw points, ore passes and the general direction of ventilation throughout mine areas we offer ventilation blinds (QBC). Designed to suit specific size openings and can be relocated for re-use.

To control air quantities in an underground mine circuit we offer environmentally friendly, recycled plastic drop-boards.

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Cavity & Backfilling

Cavity filling

Providing special resins and grouts for cavity and void filling in the mining sector.

Product title
FB200

Low viscosity, high yield grout used for rockfill consolidation and ventilation seals. Supplied as a ready to use free flowing blended cementitious powder that only requires the addition of water in a suitable placing machine. 

Explore Product
arrow arrow
Product title
TEKSEAL™

High yield, long life foaming grout primarily used for ventilation applications and cavity filling. Supplied as a ready to use free flowing blended cementitious powder that forms cement foam on mixing with water in a purpose designed placer.

Uses include explosion resistant ventilation seals, recovery of longwall face falls, backfilling behind steel sets, recovery of falls, rib stabilisation and general void filling.

Explore Product
arrow arrow
Product title
CARBOFILL®

Carbofill® is a two component phenolic foam resin used for filling cavities. Component A is an aqueous phenolic resins containing a suspension of solid carbonates as a blowing agent and Component B is a blend of various acids which affect the foaming process and the curing reaction.

The final product is a lightweight material with a yellow to pink colour. Ideal for filling of cavities in underground roadways and longwalls and the stabilisation and prevention of gas accumulation, stabilisation of debris and forming temporary plug seals.

 

Explore Product
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