Ball & Rod Milling

The Hardest Performance.

Designed for maximum abrasion resistance using high carbon content and high hardness levels, the Molycop Ball Milling range is manufactured all over the globe, delivering outstanding performance.

Forged Balls

Molycop manufactures grinding balls to exacting internal specifications at its grinding media production facility across the globe. Balls for use in mineral processing ball milling operations are designed for maximum abrasion resistance using high carbon content and high hardness levels.

PRODUCT SPECIFICATIONS

SIZE Molycop manufactures forged grinding balls for use in ball milling and regrind applications in nominal sizes from 1.0” to 4.0” in diameter.

CHEMISTRY An individual chemical profile has been developed for each diameter ball to correspond with the requirements for heat treatment. Specific alloy additions are included to produce optimum physical properties. The chemistry of the balls is controlled through a close collaboration with our bar suppliers and robust internal quality systems.

HARDNESS Surface and cross-sectional hardness of the balls depends on the microstructure of the steel which is altered using carefully selected heat treatment variables specifically designed for each particular alloy.

SUPPLY Long established strategic relationships with local and foreign raw material suppliers allow us to ensure all balls supplied to our customers are made from the highest quality products and meet strict Moly-Cop specifications. This combined with our global manufacturing network gives our customers the confidence in the quality of the product that only Moly-Cop is able to assure.

Forged Balls
Cast Balls

Molycop manufactures grinding balls to exacting internal specifications at its grinding media production facility across the globe. Balls for use in mineral processing ball milling operations are designed for maximum abrasion resistance using high carbon content and high hardness levels.

PRODUCT SPECIFICATIONS

SIZE: Molycop supplies cast high chrome grinding balls for use in ball milling and regrind applications in nominal sizes from 15 mm to 90 mm in diameter.

CHEMISTRY:  An individual chemical profile has been developed for each diameter ball to correspond with the requirements for heat treatment. Specific alloy additions are included to produce optimum physical properties. The chrome level requirements of the ball can be tailored to customer requirements.

HARDNESS:  Surface and cross-sectional hardness of the balls depends on the microstructure of the steel which is altered using carefully selected heat treatment variables specifically designed for each particular alloy.

Cast Balls
High Carbon

With a wear performance up to 25% longer than the standard High Carbon Grinding Rod, the HTR50 has outstanding resilience and a hardness profile that has a high surface hardness and lower hardness core, we’ve developed a series of world-class grinding rods that’ll reduce mill consumption significantly.

PRODUCT SPECIFICATIONS

SIZE:  Available in standard sizes from 1” to 4” or cut to specific requirements.

CHEMISTRY:  The chemistry of the rods is controlled via a robust internal quality system with our bar supplies to optimize physical properties.

HARDNESS:  Although not treated to high hardness levels, special thermal processing is employed to ensure soundness and resistance to premature breakage.

STANDARDS:  Grinding Rods are produced with a straightness tolerance of 6mm in any 1.5m of length or 4mm per meter run in accordance with various country standards.

PACKAGING OPTIONS:  Grinding Rods can be cut to any length up to 6.4m and are supplied in strapped bundles with bundle weights or rod counts to suit individual customer requirements.  The product can be transported in bulk by open top trucks, or in containers (dependent on the length of product required).

High Carbon
Heat Treated (HTR50)

Featuring wear performance 25% longer than the standard rod, outstanding resilience and a hardness profile that has a high surface hardness and lower hardness core, we’ve developed a series of world-class grinding rods that’ll reduce mill consumption significantly.

PRODUCT SPECIFICATIONS

SIZE:  Available in standard sizes from 1” to 4” or cut to specific requirements.

CHEMISTRY:  The chemistry of the rods is controlled via a robust internal quality system with our bar supplies to optimize physical properties.

HARDNESS:  Hardness of the rods is altered using carefully selected heat treatment variables specifically designed for each particular alloy.

STANDARDS:  Heat Treated Grinding Rods are produced with a straightness tolerance of 6mm in any 1.5m of length or 4mm per meter run in accordance with various country standards.

PACKAGING OPTIONS:  Molycop HTR50 Grinding Rods can be cut to any length up to 6.4m and are supplied in strapped bundles with bundle weights or rod counts to suit individual customer requirements.  The product can be transported in bulk by open top trucks, or in containers (dependent on the length of product required).

Heat Treated (HTR50)
MILL LINER BOLT

Molycop manufacturers a range of mill liner bolts and specialised fasteners for the mining industry.  Built strong from carbon alloy and stainless steel, we customize our bolts to satisfy customer requirements.  Our machining, heat treatment and technical capabilities complement the forge operation to deliver technical products of the highest integrity.

All head shapes, lengths, and diameters of forged products are catered for and customised for any requirement.  Specific design, tension, and optimal head seating are critical components to reduce mill shut down risk.

Our product line includes: Oval head liner bolts, Square head liner bolts, Hex head liner bolts and Tee head liner bolts

MILL LINER BOLT
EASY RELEASE BOLT

The Easy Release Liner Bolt is manufactured under patent.  This unique product is designed to reduce removal time through the mechanical requirement of pushing thread through worn liners.

This product also reduces the risk of damage to the outer shell due to design.  Another unique feature of the Easy Release Liner Bolt is the ability to reuse the bolt.  The nut is the only consistent consumable.

Technical components of the Easy Release Liner Bolt are consistent with Mill Liner bolt range.

EASY RELEASE BOLT
EASY OUT BOLT

Our patented Easy-Out Bolts are designed to reduce the potential for personal injury, damage to equipment and shorten liner change-out times.

These Easy-Out Bolts design consists of a standard liner bolt which has been modified to be used in conjunction with a specially designed moil fitted to any standard hydraulic or pneumatic hammers.  Both the Easy-Out Bolts and moil are custom manufactured and supplied by Molycop to suit specific customer requirements.

After removing the nut, the moil is inserted into the bolt end.  Without the need to remove recessed or seal washers the bolt can be driven out of the liner and completely clear of the mill shell in one movement.  Recent trials at a large copper concentrator have shown that bolt removal time was halved by using Easy-Out Bolts.  The positive location between the moil, or drift, and the bolt eliminates the risk of mill damage due to misalignment of hydraulic hammer moils or sledgehammer damage around bolt holes.  The use of Easy-Out Bolts also improves safety by removing the need for a man between the hammer and the mill.

EASY OUT BOLT