SAG Milling

Built for impact.

We have a SAG milling product range specifically designed for today’s high impact SAG milling environments. Our innovative manufacturing process results in products with high impact resistance and superior wear.

SAG Balls

The Molycop range of SAG grinding balls is prepared for impact.  Through an innovative manufacturing process we’ve produced a ball with greater impact resistance and reduced spalling compared to the standard SAG ball, ready to perform in the highest impact SAG milling environments.

PRODUCT SPECIFICATIONS

SIZE: SAG milling grinding media are available in sizes from 4.0” to 6.5” or 105 mm to 160 mm.

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

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

DENSITY: The theoretical apparent packing density of the balls in a ball charge is 282 lbs/cu-ft or 4,520 kg/m3.

SAG Balls
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