SERVICE AREAS: Lower Great Lakes, Ohio, Michigan, Indiana, Illinois, Pennsylvania and New York

Welding and Fabrication

For many years, Meldrum Mechanical Services has been providing timely support to industries such as rock quarries, steel mills, factories, and shipping docks. Our diverse experience allows us to handle just about any size job. Being a 24 hour service we offer what you need when you need it. Whether you are looking for shop fabrication, on site installation or customization.

  • MMS can custom build equipment or machinery to meet your specific needs and specifications.
  • Matching or reverse engineering obsolete equipment has been one of our favorite niches.
  • MMS Repairing, modifying and upgrading weak links in your process has always proved one of our more popular services.
  • If you simply want to supplement your maintenance or welding department our staff will serve as a compliment to yours.

CNC Machining

We not only machine products, we machine solutions. Our state of the art facility is equipped with some of the latest and greatest CNC machines. We take pride in providing quality workmanship. Large part machining can easily be accomplished with machine turning capabilities up to 12’ diameter and 40’ length. Milling capacities of 12’ length to 8’ height. 

  • MMS has been known for its large capacity turn capabilities.  We can build new to your specification or conduct resurfacing repairs such as metalizing.
  • MMS has had extensive experience with competitive journal repair and steel mill roll refurbishment.
  • Additionally, hard facing and grinding to provide extended service and longevity to your equipment.
  • In addition to large manual equipment we have a large CNC turning center capacity with unique software designed to chase worn and damaged threads.

Mobile Cranes

75 ton Mobilift

The ability to perform all functions under load combined with 90 degree steering makes our low profile mobile pick and carry machine perfect for machine installation.

Crane Service

We can provide equipment rental or onsite rigging service. We can custom fit our service to best suit your needs.

  • 175 Ton Truck Crane with OSHA Certified Manbaskets
  • Boom Trucks 30 Ton, 26 Ton, 12.5 Ton)
  • Forklift (38,000 lb Capacity)
  • Semi w/Lowboy & Flatbed
  • Enerpac Cylinder Sets up to 200 Ton Sets
  • Hydraulic Manlift
  • Various Hoist for in Plant Rigging
  • Heavy Equipment Rollers
  • 100ton capacity Hydraulic Truck Crane

Portable Machining

It is not always practical to bring large projects to the machine shop. But with our advanced line of portable machining and bore welding equipment we can bring the machine shop to you. 

  • MMS performs a wide range of portable machining services.
  • This includes but is not limited to earth moving equipment and all in plant processing equipment.
  • If equipment is timely or costly to remove let us quote machining it in place.

Portable Coordinate Measuring


Wire EDM

Wire EDM machining (Electrical Discharge Machining) is an electro thermal production process where a thin single strand metal wire, along with de-ionized water allows the wire to cut through metal by the use of heat from electrical sparks. Wire EDM’s are extremely accurate. Our Accutex 750 AL has a positioning accuracy of ±0.00012” and the ability to provide extremely fine finishes of 12 rms. 

Thermal Spray Process

Thermal spray coating involves the use of a torch to heat a material, in powder or wire form, to a molten or near-molten state, and the use of a gas to propel the material to the target substrate, creating a completely new surface. The coating material may be a single element, alloy or compound with unique physical properties that are, in most cases, achievable only through the thermal spray process.

Thermal spray coatings are a highly cost-effective and straight-forward method for adding superior properties and performance qualities to a given engineering surface. The variety of products and coatings that can be enhanced by thermal spray are virtually limitless. The coatings are usually metallic, ceramic, carbides, or a combination of these materials to meet a range of physical criteria.

As a family of related technologies, each thermal spray process brings distinct advantages. This provides a high degree of flexibility to meet a wide array of application and production requirements. These processes include:

  • Atmospheric Plasma Spray
  • Champro® Controlled Atmosphere Plasma Spray
  • HVOF (High Velocity Oxy-Fuel) Spray, using either gas or liquid as the combustion fuel
  • Combustion Powder Thermospray®
  • Combustion Wire Spray
  • Electric Arc Wire Spray


    The Combustion Wire Spray process employs a set of drive rolls powered by an air turbine or an electric motor to draw a metal alloy wire through the combustion spray gun. At the gun nozzle, fuel gas of acetylene, propane, hydrogen or MAPP is mixed with oxygen in precise volumetric proportions using a siphon plug and ignited to create a flame, which is then shaped at the gun’s air cap by compressed air. The metal wire is fed concentrically into the flame, melted and atomized by the compressed air, and the molten droplets are propelled towards a prepared surface where they solidify and bond to the substrate to form a coating.

    Combustion wire spray is a common choice for machine element repair and corrosion coatings. Either hard (higher melt temperature) or soft (lower melt temperature) wires can be used.

    Features of the Combustion Wire Spray Process

    • Applies a range of metallic alloys and pure metals for restoration, corrosion coatings and other purposes
    • Configurations from economical manual systems to fully automated  production systems are available
    • Can be portable for on-site coatings
    • High spray rates with low gas consumption
    • Coatings can be machined to final dimensions and finish
    • Masking of areas that should not be coated is possible
    • Coating of internal geometries is possible
    • Very simple to operate and maintain

    Marine Services


    Meldrum Mechanical Services, Inc. has established itself with highly skilled men with a long history of experience working in industrial repair.


    • Valves
    • Alignments
    • Winches
    • Conveyors
    • Main Blade Replacement
    • Thruster Repairs
    • Gearboxes
    • Cargo Holds
    • Side Tanks
    • Inter Bottom

    On the Water Repair is Also Available

     Industrial Service and Repair

    • MMS can provide a preventative maintenance plan tailored to your needs or supplement your current maintenance staff.
    • In addition, we provide 24 hour emergency service keeping with our trademark “We Keep Industry Running.” We have the diversity and resources that can get your plant running ASAP.
    • MMS prides itself with a diverse customer base an essential key to future success. In the market sectors of steel and stone we have extensive experience with manufacturing, modifying and repairing all phases of processing equipment (from the minerals in the ground to the finished product).
    • Our personnel are TWIC holders for shipboard port accesses and MSHA certified for Quarries and Mines.  We can come to you and we look forward to helping you in your times of need.

    Capacities/Line Card


    CNC Horizontal Mill        sizes  X = 42”, Y = 22”, Z = 16”

    Horizontal Mill                  sizes  X = 74”, Y = 78”, Z = 63”

    Horizontal Mill                  sizes  X = 65”, Y = 65”, Z = 60”

    Horizontal Mill                  sizes  X = 26”, Y = 36”, Z = 36”

    Vertical Mill                      sizes  X = 118”, Y = 24”, Z = 24”



    CNC Lathe                      Swing Over Bed 31.5”, Swing Over Crosslide

                                              20”, Distance Between Centers 120”

                                              12” Bore with Double Chuck

    Manual Lathe                   sizes  106” Dia. x 360” long

    Manual Lathe                   sizes  28” Dia. x 288” long

    Manual Lathe                   sizes  36” Dia. x 132” long

    Manual Lathe                   sizes  18” Dia. x 120” long

    Manual Lathe                   sizes  18” Dia. x 144” long

    Manual Lathe                   sizes  16” Dia. x 72” long

    Vertical Lathe                  sizes  72” Dia. x 36” long

    Vertical Lathe                  sizes  54” Dia. x 36” long


    O.D. Grinder                             sizes  18”Dia. x 120” long

    O.D. Grinder                             sizes  12”Dia. x 72” long

    Surface Recip. Grinder           sizes  12” x 24”

    Small I.D. Grinder

    Tool Post Grinders for Large Lathe


    Capacity up to 38,000 LBS


    • Flat Bed Trucks
    • Semi Truck with 40’ Trailer
    • 50 Ton Capacity Low Boy Trailer
    • Metalizing equipment
    • Babbit Pouring Equipment
    • Portable Boring, Milling and Turning equipment
    • 100 Ton Break Press
    • Radial Drill Presses
    • Vertical Band Saw
    • Horizontal Band Saw
    • Programmable Oxygen-Fuel Cutting       Capacity      8” plate x 96” x 220”
    • Programmable Plasma Cutting               Capacity      1/2 ” plate x 96” x 220”
    • Broaching and Key Seater machines
    • Large Cap Slotting Machine
    • Service Trucks with welding and burning capacity
    • Tool Trailers
    • Field Office Trailer
    • Mig Welding Machines
    • Stick Welding Machines
    • Portable Welders
    • Threading Machine
    • Horizontal Presses up to 400 Ton
    • Splice Rod/Lancing Equipment
    • Enerpac Hydraulic Units up to 200 Ton Cylinder Sets