Structural Plate Manufacturing custom steel MOUNTING PLATES Custom Steel Plate
Adding Value to Steel Plate Since 1971
Precision Grinding, Inc. Logo 
1-888-WE-GRIND   (1-888-934-7463)

Structural Plate

Machine Bases
Mounting Plate
Sole Plates

Steel Angles

Plate Inventory

Hot Roll HRS
A514 T1

Machine Bases

Compressor Base
Generator Base
Motor Base
Pump Base

Compression Pad
Generator Pad
Motor Pad
Pump Pad

Steel Foundations

Motor Foundation
Pump Foundation

Lifter Plates

Steel Lift Plate
Lifting Pads

Steel Frames

Compressor Frame
Generator Frame
Motor Frame
Pump Frame

Sole Plates for:

Gas Compressors
Diesel Generators
Power Generators
Electric Motors


Structural Steel Mounting Plates

Precision Grinding manufactures flat, parallel, and square mounting plates for most structural applications. Many of these plates fall into the category of machine support plates, including machine bases, machine beds, floor plates, and sole plates. Machine plates normally have precision machined holes and cut-outs for aligned bolting directly to the supported machine. These steel base plates are usually Blanchard ground to 0.005 - 0.010" tolerances for parallelism and thickness. With large capacity Horizontal/Vertical CNC Machining Centers, our Machining Department  provides precision machining to 31" x 78" x 122" up to 22,000 lbs. for these types of large machine plates. Our G&L Bar Mills can handle much larger work pieces. Machine bases generally range from 2" thick to 8" thick in sizes as large as the base dimensions of the machine. Serving as a One-Stop-Shop, we provide plate cutting services, grinding services, and machining services to manufacture heavy steel plate and parts to as large as 5,000 lbs - 20,000 lbs and to thicknesses over 14" thick.

3 x 40 ft Plate Cutting tables and LargePlate Inventory Precision Surface Grinding & Blanchard Grinding CNC Machining Steel Parts Large & Small Base Plates or Sole Plates or Generator Pads
Plasma & Flame Cutting Blanchard & Surface Grinding CNC Machining Steel Parts Inspecting Generator Pads

Building Construction Plates

A second category of mounting plates include bridge and general building construction plates, such as gussets, bearing plates, leveling plates, and column plates. These steel parts generally provide support for steel structures that may be bolted, riveted or welded together. Neither overhead crane end plates nor steel building column bases, as examples, need to be precision ground. Often times, the design engineers call for minimum specifications to include cut and deburred plates that are left un-ground, aka Plate Cut Material Only orders. Bridge and supporting plates must meet more rigid standards than general building construction demands. Often times, A516 pressure vessel plate or A572-50 may be specified for bridge steel, instead of A36 or 1020HR, and more often then not, these plates may be Blanchard ground.

Machine tables, machine bases, ground table tops, steel platforms, pedestal mounts, steel skids, or otherwise taller mounts are essentially mounting plates welded atop a hollow steel tubing H-type frame or a foundation built upon I-Beams or steel side frames or some other fabrication. With the flexibility to meet most structural engineering and steel processing needs, Precision Grinding provides a One-Stop Shop approach for Cutting, Grinding, CNC Machining, Milling, and Fabricating complete all shapes and sizes of structural mounting plates.

Ground and Machined Steel Parts

From the simplest of flame-cut and deburred plates to plates machined with a few clean holes to complex machine bases requiring hundreds of precision machined holes, grooves, cut-outs, and bevels, our machine shop and grinding department work together to provide precision machining along with close tolerance Blanchard and surface grinding in order to meet your rigid specifications.

Large ASTM A36 Inventory

We maintain a large inventory of A36 steel plate from 1/4" - 8" thick, while we support custom steel plate orders up to 24" thick. Additionally, we stock A572, A514, A516, 1020, 1045, and 4140 from 1/4" to 4" thick.

Please, allow us the opportunity to quote your next order for Custom Steel parts.

888-934-7463 toll free
205-942-2491 direct