Aftermarket Drum Manufacturing - Keystone will design and build longwall shearer, continuous miner, crusher/breaker and surface miner drums to meet any specification or need.

  • Increase production by improving the miner’s cutting efficiency
  • Significantly reduce vibration on the miner with the use of Keystone’s patented crawl angles
  • Increase bit life by using and maintaining effective attack angles
  • Eliminate the need for welding by using Keystone’s bolt on Wedge Lock Quick-Change System

Block and Tooling Systems

Wedge Lock Quick-Change System
Continuous Miner shown with standard spacing
Continuous Miner shown with T-Blocks at 1/3 standard spacing
  • Interchangeable blocks for different mining applications transform a standard spaced drum into a rock drum without the costly expense of changing drums
  • No tapered parts are welded to the drum providing a longer lasting block system. Industry standard taper systems wear and lose locking capability over time
  • Continuous Wrap Design—Keystone’s patented block to block welding technology insures superior strength in the most extreme mining environments
  • Easily change from a standard mining bit to a radial mining bit with interchangeable bit and block system
View Product Card

The Big Easy Quick-Change System - Mining
  • Easy bit holder removal—unscrew holder with standard tools, no hydraulic presses or special tools required
  • Keystone’s patented threaded system provides more clamping force than industry standard taper systems creating a system that is stronger and lasts longer
View Product Card

Industry Standard Block Systems - Keystone can supply most industry standard block systems

Underground Cutting and Grinding Attachments

Keysaw Mining - Underground Cutting and Grinding Attachment
  • Sawing
  • Grinding
  • Micro-Trenching
View Product Card
View all of Keystone’s Attachments

Wear Protection Products - Keystone offers a variety of wear protection products to minimize equipment downtime.

Wear Patch - An excellent solution to abrasive wear problems. Wear Patch comes in a variety of shapes and sizes and can be easily cut with a torch to fit irregular shaped areas. Wear Patch is easily installed on any flat metal wear surface using Mig wire. Wear Patches are through-hardened to 60-63 Rockwell C for superior wear life.

Wear Plates - Provides a simple solution for rectangular shaped high wearing pieces. Wear Plates are available multiple sizes and in thickness from .375" to 1.000". Wear Plates have customizable holes cast in place for bolt or weld washer installation. Wear plates can not be welded, but can be cut to size with a plasma cutter.