CONTRACT MANUFACTURING
Large and Heavy Machining
Laser Cutting
Plasma Cutting
Robotic Welding
Welding Services
METAL FABRICATIONS
Aluminum Fabrication
Large Metal Fabrication
Machine Frames
Metal Bending
Metal Forming
Stainless Steel Fabrication

State of the Art Equipment
Short Run thru Long Run
Kan-Ban Requirements
Veteran Owned Small Business
ISO Certificate

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MIG and TIG Welding Services, Contract Manufacturers
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Hover over image to pause gallery
or use arrows to manually scroll through.
Hand laid aluminum heliarc weld bead
welder / fitter checking mean diameter with
pi tape prior to tack welding stainless
steel cylinder
rolled and seam welded aluminum shrouds
semi automatic seam welder laying down
full penetration groove weld in 1/4" thick
aluminum 12' long
welded stainless steel flange on double
wall elliptical dished head vacuum chamber
helium leak checking one of four 10’ x 10’
sides of a stainless steel double wall
vacuum chamber
12' long semiautomatic seam welder shown
welding various stainless steel cylinders
various joints of large aluminum
tubular frame
before and after welding views of undersea
carbon steel clamp prior to galvanizing
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Click here for information on Welding
and Fabrication Capabilities and Markets |
Custom Aluminum, Stainless Steel Certified Welders
GMFCO is a leading New Hampshire metal fabricating company and the choice of large companies from broadcasting to food processing to construction, to name only a few.
Before your company decides who to contract for its next welding services project, we'd like for you to consider the following questions:
- How much time and money is your company willing to risk having a product not perform to its highest standards because of inferior welding?
- Given all the various welding applications available such as a mig welding and tig welding, do you know which welding technique is best suited to your product?
- What is the level of expertise required to provide superior welding services and is the welding services company capable of working on a variety of materials?
We have the answers for you!
With GMFCO our customers are guaranteed to receive the most innovative, qualified, and reliable welding services in the metal fabrication industry.
Since 1975, we have offered a wide range of welding services that has surpassed customer expectations which has set us apart from others in the industry.
GMFCO | Competitive Advantage
- Our AWS certified seam welders are capable of welding seams on parts up to 12' in length.
- Welders can mig weld or tig weld any shape that can be slipped over a mandrel
- We maintain an In-House Certified Welding Inspector to ensure quality throughout the welding -various welding process
GMFCO | Welding equipment
We believe that a welder is only as good as the equipment they use, and therefore, we invest our resources to ensure we have up-to-date welding technology so that our AWS certified welders can efficiently do their jobs, and produce a precise welds on all your parts.
We utilize the following welding equipment:
Jet-Line Seam Welding
One MIG, One TIG
Parts Up to 12 Feet Long; 1/32" to 3/8" Thick
Welding Process
SMAW, GTAW, GMAW, GMAW-P
Multiple Welding Stations from Small Bench to Floor Platens, 15 x 30 Feet
Meta-Lax Stress Relief System
Vibratory Stress Relieving of Weldments up to 40,000 lbs; Ideal for relieving thermally induced stresses; Data graph print out documents the results of each part - Unit is portable
From providing a mig welded aluminum lighthouse frame to a tig welded large aluminum elbow-our highly skilled welders' technical precision is flawless and is certain to exceed your expectations.
Allow us to demonstrate our expertise in providing you with results that deliver welding excellence with every project.
Welding Markets
- Architectural
- Commercial
- Communications
- Concrete Precast Molds
- Environmental Controls & Instruments
- Fabricated Metal Products
- Food Processing Equipment
- General Construction
- Hydro-Electric
- Industrial
- Marine
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- Power Transmission
- Power Generation
- Printing
- Pulp and Paper
- Semiconductor
- Utility
- Granular and Powder Bulk Material Handling Equipment
- Steel Service Centers
- Stainless Steel Service Centers
- Special Industry Machinery
- Architectural Design Firms
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- Sign Companies
- Machine Shops
- Paint Colorant Dispensing Equipment
- Paint Blending Equipment (shakers)
- Engineering Companies
- Awning Manufacturers
- Oil Exploration and Drilling
- Art
- Radio Wave Transmission
- Television Broadcasting
- And more…
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Welding Services
- Aluminum Fabrication
- Aluminum Seam Welding 12 ' long
- Aluminum Welding
- Robotic Aluminum welding
- Stainless Steel Fabrications
- Stainless Steel Seam Welding 12' long
- Stainless Steel Welding
- Robotic Stainless Steel welding
- Multiple AWS and ASME Stainless Steel weld certifications
- Metal Forming
- CNC Machining
- Large Component Machining
- Steel Laser Cutting 1" Thick Steel 6' x 12'
- Comprehensive Tooling Capabilities
- Flattening
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- Full CAD / CAM Capabilities
- Straightening
- Vibratory Stress Relief
- Value Engineering
- De-twisting
- Precision Inspection Equipment Manufacturers
- In-House Certified Welding Inspector
- GTAW, GMAW, FCAW, STUDW Welding Processes
- Multiple AWS and ASME Steel Weld Certification
- Welding
- Metal Shearing 1/2" Thick Steel 16'7" Long
- Metal Rolling
- Project Management
- And more…!
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Welding Capabilities
- Seam Welding up to 12' Long
- Cones and Open End Boxes
- Diameters as Small as 5" to as Large as 30"
- Flat Sheets to Cylinders
- Mig or Tig any Shape That Can Slip Over a Mandrel
- Robotic Welding
- Certified Welding Inspector
- GTAW, GMAW, FCAW, STUDW Welding Processes
- Multiple AWS and ASME Steel Weld Certification
- Full CAD / CAM Capabilities
- Project Management
- 5 Axis Precision Milling
 Call 603.889.2600 or email us to learn more about welding services today!
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