Mineral processing


Consistent and dependable mineral processing equipment is a key to crushing your mining business goals and L&H provides complete solutions that maximize the processing side of your mine operation. Our expert teams repair, rebuild, and customize components and assemblies to transform every make and model of equipment used for crushing, grinding, conveying, and screening.

Improving Operations

Sure, you can keep shutting down to patch repair that cone crusher, jaw crusher, ball mill, or other downstream piece of equipment, or you can let L&H Industrial transform your mineral processing equipment to substantially reduce downtime, improve safety, increase production, and lower your cost of ownership. Our engineering and technical field support teams have industry-leading knowledge of mineral processing operations and equipment – we don’t just fix machines, we make them work better for your goals in your unique environment.

Rebuilding Better

Our expert design, engineering, manufacturing, and field service teams leverage 60 years of experience transforming mining crushing and screening equipment in operations with the toughest conditions around the world. With L&H enhancements you’ll be back in operation with a machine that works more efficiently and with improved safety so you can get back to the business of crushing, screening, and loading out.

L&H Innovations

With superior design, engineering, and manufacturing capabilities and a flexible, practical partnership approach, we offer industry-leading solutions that transform mineral processing equipment in mines around the world and are backed by 24/7 responsive field service.

Direct REplacements

We apply our vast experience servicing operations of every size to even the most straightforward mining equipment field repairs and maintenance, from the crusher head and bowl to mill gears and pinions. Our premium replacement parts increase safety and minimize downtime so you can focus on your business goals.

Custom Solutions

As one of only two companies in North America with a Höfler Rapid 6000 6-meter gear grinder, we can produce AGMA 12 quality or better gears, pinions, and pinion shafts. Our cone crusher tramp release system paired with our OPS IQ monitoring and controls system improves safety and radically reduces maintenance and downtime.



Crusher Rebuilds

Superior results with on-site repair for primary, secondary, and tertiary crushers,  in-house component repair, lubrication, hydraulic controls, and new components for legacy crushers.

Apron Feeder Shaft Assembly

Eliminates ring feder on sprocket housings and the need to remove motors and bearings if plates get damaged while protecting against timing misalignments.


In-house AGMA 12 and up 6M diameter gears provide lead, profile, spacing, and bending resistance with less pitting, quieter, cooler operation, and longer gear life.

Gearbox Rebuilds

For most makes, models, and sizes from seals and bearings to full gear trains with vibration analysis, thermography, and precise reporting to deliver the right results.


100% of L&H premium components meet, or more often exceed, OEM performance, quality, and safety standards.

Ready for increased productivity?

Components & Assemblies We Enhance


· Cone crushers

· Gyratory crushers

· Roll crushers

· Jaw crushers

· Hammer mills

· Vertical shaft impactors

· Shaft rotary shear shredder

Crusher Components & assemblies

· Main shaft

· Eccentric

· Countershaft

· Mainframe

· Bowl

· Adjustment ring


· Tramp release system for Symons®

· Super duty lock posts for Symons

· Super duty ram cylinders for Symons

· Hydraulic clamping and adjustment conversion

· Kits for Symons

· Rotating feed distributors

· Lube systems

· Cooling systems

· HPU’s (Hydraulic Power Units)

mills & kilns

· Gears and pinions

· Gearboxes

· Mill shell

· Bearing pedestals and sole plates

· Feed and discharge head

· Trommel frames


· Thickeners

· Agitators

· Aerators

· Clarifiers

Feed & Support equipment

· Apron feeders

· Screens

· Conveyors

· Stackers

· Hydraulic hammers

· Head/tail pulley

· Sprockets

· Bearings

· Tripper car bogie wheel assemblies

· Wheels

Brands We Make Even Better

Field Services We Offer

· New installation or repair
· Inspections and maintenance
· Teardowns and relocations
· Failure analysis and troubleshooting
· Planned upgrades
· Machine customizations


MINING solutions






heavy mobile equipment


Have A Big

We’re ready for anything.

No problem is too big or too small. Our expert engineers, manufacturers, and field service technicians love a good challenge and routinely solve complex issues for operations globally.