Capabilities
Custom Precision Machining & CNC Manufacturing Solutions
At Grant Manufacturing Services, we deliver high-volume precision machining to meet the demanding needs of heavy equipment fabrication, industrial manufacturing, and critical infrastructure projects. Our production facilities house over 40 advanced machining centers, including:
- CNC Machining
- High-Speed Milling
- Horizontal Boring
- Gantry Bridge Machining
- 5-Axis CNC Machining
With comprehensive in-house capabilities, we work faster, meet tight tolerances, and eliminate the need for outsourcing — delivering greater efficiency, precision, and cost savings to our clients.


CNC Machining Services
Our CNC milling machines are designed for high-volume precision parts production, capable of handling small, complex components as well as large, heavy-duty items.
We specialize in manufacturing:
- Structural beams
- Chassis components
- Engine blocks
- Weldments and bases for bridges, generators, and heavy equipment
Key Capabilities:
- Extra-large CNC milling beds up to 195″ x 47.2″
- Multi-angle machining and 5-axis simultaneous contouring
- Precision boring and milling of long and oversized workpieces
- Tight tolerance machining for critical structural and mechanical parts
Materials We Machine:
- Specialized Industrial Materials
- Carbon Steel
- Stainless Steel
- High-Strength Alloys
- Aluminum
Automatic Turning, Milling, and Drilling
Our turning, milling, and drilling services are designed to meet the stringent quality requirements of industries such as:
- Industrial Equipment Manufacturing
- Oil & Gas Equipment
- Agricultural Machinery
- Construction Equipment
- Power Generation Facilities
Every part we produce undergoes rigorous inspection to ensure it meets or exceeds industry standards for strength, durability, and performance.


PVF Distribution and
Machining Integration
We proudly serve PVF (Pipe, Valve, and Fitting) distributors by offering a complete line of steel pipe, fittings, flanges, valves, tubing, and round bar — backed by vertically integrated manufacturing solutions for custom machining, cutting, welding, and assembly.
Fabrication and Assembly Services
Our fabrication services include precision welding, laser and plasma cutting, and full component assembly, allowing us to provide turnkey manufacturing solutions that streamline your supply chain.
We specialize in custom fabrication of:
- Engineered components for heavy industries
- Structural weldments
- Frames and chassis


OEM Replacement Parts
Grant Manufacturing also provides OEM-quality replacement parts for specialized industries. Whether you need custom bushings for marine equipment or engineered flanges for oil and gas operations, we deliver precision-machined parts that meet original specifications — or improve upon them.
Let’s Build What’s Next—Together.
Partner with Grant Manufacturing for precision machining, custom fabrication, and dependable service built on 70+ years of industrial expertise.
Contact us today at 832-964-3642 to request a quote or schedule a consultation with our team.