GREY IRON ENGINEERING
HEAVY MACHINERY & CIVIL PLANT

Excavators, cranes, and fleet support for civil and infrastructure projects.

VIEW MACHINERY FLEET DISPATCH INQUIRY
[ ENGINEERING & WORKSHOP ]

Heavy Civil & Mechanical Engineering

Fleet mobilization, rigging, and component overhaul from our Houston yard.

Fleet deployment
[ CAPABILITY 01 ]
48-Hour Rapid Dispatch Available

Fleet deployment

Heavy haul and site dispatch
Heavy lift and rigging
[ CAPABILITY 02 ]
Up to 500-Ton Rigged Lift Capacity

Heavy lift and rigging

Lift plans and crane logistics
Earthmoving and grading
[ CAPABILITY 03 ]
3.4M+ Cu. Yds. Moved Annually

Earthmoving and grading

Excavation, trenching, and machine guidance
Hydraulic repair
[ CAPABILITY 04 ]
10,000 PSI Test Bench Validation

Hydraulic repair

Component rebuilds and testing
Engine and powertrain overhaul
[ CAPABILITY 05 ]
Zero-Hour OEM Performance Specs

Engine and powertrain overhaul

Diesel engines and transmissions
Maintenance and field service
[ CAPABILITY 06 ]
99.2% Fleet Availability Rate

Maintenance and field service

Mobile service and preventive maintenance
[ CENTRAL MECHANICAL YARD, HOUSTON, TX ]

Houston Overhaul Facility

Our Houston facility handles engine, hydraulic, and powertrain work, with dynamometer cells and test benches up to 10,000 PSI.

10,000 PSI
Hydrostatic Flow Bench
99.2%
Fleet Availability Rate
TOUR OVERHAUL FACILITY
Grey Iron Engineering Central Mechanical Facility
YARD 4 OVERHAUL BAYS • 50-TON OVERHEAD HOISTS
Certified Heavy Equipment Mechanics and Rigging Engineers
CERTIFIED MECHANICAL TECHNICIANS & RIGGERS
[ MANAGEMENT & FLEET DIRECTORS ]

Management & Engineering Staff

Operations, fleet scheduling, and field engineering.

David Vance, P.E.
22+ YEARS HEAVY MACHINERY OVERSIGHT
[ CHIEF MECHANICAL ENGINEER ]

David Vance, P.E.

Managing Director & Chief Mechanical Engineer

With more than 22 years directing heavy machinery deployment, open-pit earthworks, and specialized hydraulic engineering programs across North America, David Vance oversees Grey Iron Engineering. His focus centers on rapid equipment mobilization, rigorous preventive maintenance, and zero lost-time jobsite safety.

Sarah Sterling, P.E.
PE LICENSED PROFESSIONAL ENGINEER
[ FLEET OPERATIONS & RIGGING ]

Sarah Sterling, P.E.

Vice President of Fleet Operations & Heavy Rigging

Manages high-capacity mobile crane deployments, lift planning, and 24/7 mobile field service across regional projects. Licensed P.E. with focus on ground-bearing studies and critical picks.