Keystone is the premier drum
and block system manufacturer for milling machines. Keystone manufactures
replacement drums for all makes and models of milling machines and has
the large selection of block systems available to meet any need. Let
Keystone's 30 years of experience in asphalt milling work for you.
Manufacturing - Keystone will design and build any OEM
milling drum to meet any specification or specific need.
Standard Milling - Keystone manufactures a large
variety of standard milling drums to meet any need or budget. Keystone's
Lock System is the most durable Quick-Change system on the market.
The Wedge Lock System is designed to last the life of the milling machines
with no costly "rebuilds" required.
Micro Milling and Fine Milling - Keystone can design
and manufacture to meet any micro milling or fine milling specification.
Keystone offers a large variety of block systems including the Wedge
Lock System which is the only Quick-Change system to give contractors
the ability to standard mill and micro mill with the same drum.
Micro Milling and Fine Milling
Flat Tooth Milling - Keystone developed Flat Tooth
Technology for when any spacing, including micro milling, is too large.
The Flat Tooth System cuts 100% of the asphalt’s surface and is
ideal for bump grinding, line and coatings removal.
Rumble Strip Grinding- Keystone manufactures replacement
drums for all makes and models of rumble strip machines.
Custom Lacing - For anything that may fall in between.
Please contact Keystone direct to discuss your specific need.
and Tooling Systems
Wedge Lock Quick-Change System
Interchangeable blocks for different cutting applications
transform a standard milling drum into a micro-mill drum,
simply change the holders to achieve a 7.5mm/.3”
and even a 5mm/.2” surface pattern
Replaceable blocks are positioned on the wear side of
the flighting which protects the flighting against wear
No threaded parts are welded to the drum providing a
longer lasting drum
Continuous wrap design provides superior strength
Wedge Lock Systems with over 18,000 hours are still
in use today
Industry Standard Blocks
- Keystone can supply most industry standard block systems
and Concrete Grinding Attachments
Flatliner - Asphalt Bump Grinder
and IRI Improvement
Maintenance Work/Bump Grinding
Ride Quality/IRI Improvement
Pavement Marking Removal
Skid steer attachment designed to
smooth pavement roughness by shaving high spots and other irregularities
in a cost effective manner. The Flatliner uses Flat Tooth Technology,
a machined and precise holder system to insure a smooth and uniform
surface, setting a new industry standard.
Precise Depth Control
Variable Cutting Widths: 2" to 49"
100% Surface Coverage
Precisely levels bumps and other irregularities, acts as
a profilograph and bump grinder in one
Sales and Service - Keystone has a large selection of
gearboxes in stock for all milling machines. Please call Keystone direct
to discuss your gearbox options. 317-271-6192
Pad and Conveyor Belt Sales - Keystone has a large selection
of track pads and conveyor belts for all milling machines. Please call
Keystone direct to discuss your track pad and conveyor belt options.
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 in 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
cannot be welded, but can be cut to size with a plasma cutter.