Custom Manufacturing of Carbon Steel Mounting Bracket for the Railroad Industry

Mechanical Designs of Virginia was recently contracted by a railroad industry client to custom manufacture a mounting bracket that would be used within a transportation application. Based off a customer supplied print, we laser cut the part to measure precisely 30 inches in overall length and 15 inches in height. The unit possessed an overall plate thickness of .375 of an inch and weighed 80 pounds.

The mounting bracket possessed the following components: a left and right side frame measuring 14 inches long and 1.94 inches high, a leveling shim measuring 11.5 inches long and 1.5 inches wide, a gusset measuring 9.63 inches long and 3 inches wide, and a manifold block measuring 23.25 inches long, 4.5 inches wide, and 2 inches thick. All of these components were fully manufactured and welded together (using our MIG/TIG welders) in-house to meet exact client specified dimensions.

Constructed from durable carbon steel, we employed our CNC milling technology to skim cut any excess material, drill all holes, and tap all threads. We then formed two 90° bends, each containing a .375 of an inch bend radius. During production, we were able to uphold an overall precision tolerance of ±.005 of an inch, with a flatness tolerance of .0025 of an inch, and a perpendicularity tolerance of .015 of an inch. After all mount bracket components were fully manufactured and welded together, we then deburred the finished bracket, creating a smooth, 125 RMS finish, and painted the part using quick dry steel primer.

To ensure that this high-quality part met with precise customer requirements for design and functionality, Mechanical Designs of VA performed a series of product inspections using thread gauges, dial calipers, a height indicator gauge, and feeler gauges. Only after we were fully assured that we fulfilled all of our client’s exact specifications did we deliver this product to our customer.

Carbon Steel Mounting Bracket Specifications

Product Description

This custom Manufactured Mounting Bracket is used within a transportation application.

Capabilities Applied/Processes

CNC Milling

  • Skim Cut
  • Drilling
  • Tapping
    • 1/2-13 UNC-2B x4
    • 5/8-11 UNC-2B x4
    • 1-1/4 NPT x4

Laser Cutting

  • 90° x2
  • .375″ Radius


  • MIG
  • TIG


  • Time Saver
  • Grinding


  • Quick Dry Steel Primer
Equipment Used to Manufacture Part

CNC Vertical Mill

Press Brake
MIG/TIG Welders


Manifold Block
Left Side Frame
Right Side Frame

Leveling Shim

Overall Part Dimensions

Plate Thickness: .375″


Left & Right Side Frame:
Length: 14.00″
Height: 1.94″


Leveling Shim:
Length: 11.50″
Width: 1.500″


Length: 9.63″
Width: 3.00″

Manifold Block:
Length: 23.25″
Width: 4.50″
Thickness: 2.00″


Length: 30.00″
Height: 15.00″

Tightest Tolerances

Flatness of .0025″

Perpendicularity of .015″

Material Used

Carbon Steel

Max Material Finish

125 RMS

In Process Testing/Inspection Performed

Thread Gauges
Dial Calipers

Height Indicator Gauge
Feeler Gauges

Estimated Part Weight

80 lbs

Industry for Use


Standards Met

Customer supplied print, 2D CAD Drawing

Product Name

Mounting Bracket

Ready To Start Your Next Project

MDV prides itself on its exemplary customer service and producing your parts to your exact specifications and the high degree of quality you demand.