We don’t have minimums, we deliver the best parts for your money, and meet your deadlines!

Every job is unique, and many require special considerations for materials, finishing, custom work, or urgent delivery – your commercial quote will be turned around by seasoned estimators who confirm all aspects of your job.

Amazing companies choose PROTOTEK for high-quality parts done fast!

Licenses, certifications
and real metal fabrication service

Expertise and quality are paramount. With more than three decades of experience in commercial metal fabrication, we’ve achieved a rich set of certifications and provide high-touch attention and service to every quote – and every job.

We engage with our customers to help them design better and more cost-effective parts before we start manufacturing. We want to be your one-stop shop for commercial metal fabrication. Most of our business is from returning customers, and to achieve that, we strive to hit our customer’s deadlines across all project types.

ITAR Badge Prototek

sam certified

Prototek FAB 40 2020 award

Better Business Bureau Prototek




D&B Number Prototek

AS9100 D Certified

Metal Fabrication Services – Working with PROTOTEK

Deep capabilities in commercial sheet metal and machining – design, metal fabrication, manufacturing, finishing, and even complex assemblies.

What do we do?

  • Sheet Metal Parts & Assemblies in 1-3 Days
  • CNC Milled and Turned Parts in 1-3 Days
  • Additive Manufactured Parts in 1 – 3 Days
  • Expedited Jobs

About our fast, flexible, personalized service:

  • ISO-9001:2015 Certified, ITAR Registered
  • Quotes within 24 Hours
  • Contact us about our expedited services

Our metal fabrication capabilities start below but they don’t stop there. Want to talk to someone about a job, upload a file for quote or call us now.


We accept these file types STP, PRT, IGS, DXF, STL, and more!




Why Prototek?


Prototek's In-house Capabilities

Sheet Metal

  • Manufacturing Design Assistance
  • Laser Cutting - Punching
  • Material Graining
  • Drilling - Countersinking - Tapping
  • Forming - Bending
  • Hardware Insertion
  • Mechanical Assembly
  • TIG, MIG, Spot Welding & Weld Grinding
  • Welded Assemblies & Frames


  • Up to 5-Axis Milling
  • Horizontal & Vertical Milling
  • 9-Axis Mill-Turn
  • Turning
  • CNC Routing
  • Surface Grinding
  • Lapping & Polishing
  • Welding / Post-Weld Machining
  • Heli-Coils / Hardware Inserts

Cutting & Engraving

  • Wire & Sinker EDM Cutting
  • Waterjet Cutting
  • CO2 Laser
  • Fiberoptic

Quality Assurance

  • Quality Engineering Assistance
  • CMM Inspection Services
  • First Article and AQL Inspections
  • Compliance and Document Control

Plastic & Composite Fabrication

  • Plastic Thermoforming - Bending
  • Annealing
  • Cryogenic Deflashing & Deburring
  • Plastic Welding
  • Thermal, Adhesive, & Mechanical Bonding
  • Vapor Polishing
  • Radiological Film-Cutting Services


  • Manufacturing Design Assistance
  • Tooling and Fixture Fabrication
  • Electro-Mechanical Services
  • Welded, Mechanical, & Small Parts Assembly
  • Wire Harnessing
  • Laser Cutting – Polymers & Metals
  • Insert Installation


  • Powder Coating
  • Painting
  • Chemical Agent Resistant Coating
  • Silk Screening
  • Laser Engraving
  • Chem Film
  • Anodizing
  • Black Oxide
  • Bead Blasting
  • Tumbling

Additive Manufacturing

  • Laser Sintering
  • Multi Jet Fusion
  • Stereolithography
  • Digital Light Processing
  • Fused Filament Fabrication
  • Material Jetting
  • Cast Urethane

Metal Fabrication Services We Support

Prototek offers metal fabrication services that can accommodate just about any project. We can alter the shape, size, complexity and other aspects of metal to create a one-of-a-kind, custom product using several metal fabrication processes and machines. Our metal fabrication services cater to a wide range of industries, including but not limited to aerospace, construction, automotive, HVAC, consumer products, robotics, electronics and the energy industry. The metal fabrication services we offer include the following:

  • Laser Cutting

    Laser cutting involves laser diodes diffused through optical fibers. Through this process, cuts can be made into the desired material.

  • Punching

    Punching is a metal fabrication procedure that produces a hole in a metal workpiece so that when a punch penetrates the punching die, a scrap slug gets retrieved from the metal workpiece.

  • Material Graining

    Material graining is the method of obtaining a consistent, clean finish on various metal surfaces.

  • Drilling, Countersinking and Tapping

    Drilling creates higher-quality holes that can be used in thicker materials. Thread-tapping and countersinking are frequently done after that. Thread tapping creates threads inside the drilled hole, allowing for the eventual creation of a bolted link. Countersinking a drilled hole removes the sharp edge and creates a bevel as well as a recess (deep bevel) for a blind bolt head.

  • Forming

    While cutting removes material from a sheet of metal, forming reconfigures it into the required shape. Furthermore, forming includes operations like bending, which can get done by hand or using equipment like press brakes.

  • Hardware Insertion

    To have hardware parts placed precisely, securely and quickly, hardware insertion is a necessary metal fabrication service. Hardware insertion uses existing holes generated by high-precision tools such as a laser cutter or a waterjet cutter, which improves fastener placement accuracy.

  • Mechanical Assembly

    Our mechanical assembly covers a wide range of component assembly and integration methods, from simple mechanical assemblies of produced sheet metal parts to specialized electro-mechanical assemblies with many materials to cater to custom metal fabrication needs.

  • TIG, MIG, Spot Welding and Weld Grinding

    Tungsten Inert Gas (TIG) welding is a type of welding that uses a non-consumable tungsten electrode to generate the welding arc. On stainless steel parts, lean gauge mild steel and non-ferrous metals, TIG welding is commonly employed.

    Conversely, MIG welding is an arc welding process in which a constant feed of solid wire electrodes gets fed at a steady rate through a welding gun and into the welding pool. MIG welding can get applied to various materials, including mild steel, stainless steel and aluminum.

    Spot Welding, on the other hand, links two or more metal sheets by adding pressure and heat to the weld zone using an electric current.

  • Welded Assemblies and Frames

    Our metal fabrication services integrate machined parts, formed parts and welding procedures to construct assemblies and frames using advanced production equipment and capabilities.

Assembly Services Supported

As an established metal fabricator, we support a wide array of assembly services to accommodate custom metal fabrication requirements. Here are the common assembly services we offer:

  • Manufacturing Design Assistance

    Before tackling your custom metal fabrication job, we assess several factors, including the product’s purpose, requisite product strength, quantity requirements, industry standards, necessary material quality and other pertinent variables. We want to make sure your design ensures the product we produce for you will be of the highest quality possible.

  • Tooling and Fixture Fabrication

    A part is only as good as the tooling and fixturing that fabricates it. That’s why we use some of the best tooling and machines around. We have substantial sheet metal model-making experience and know what tools and machines are right for which jobs.

  • Welded, Mechanical & Small Parts Assembly

    We often use mechanical components (such as bolts or rivets) or welding (such as spot welding or arc welding) to assemble custom-fabricated pieces into subassemblies and chassis. We can also handle small parts assembly leveraging several different metal fabrication processes.

  • Wire Harnessing

    Wire harnessing in electrical devices and equipment is crucial to delivering electric signals and electrical power through wires and cables. If your metal fabrication project required wire harnessing, we have the expertise and services to get your job done.

  • Laser Cutting – Polymers & Metals

    We offer laser cutting for both polymer and metal materials. Polymers and metals are suitable for laser processing because they respond particularly well in the ultraviolet portion of the light spectrum, making them ideal for laser micromachining multi-layered materials. Laser micromachining is based on the material’s photodecomposition. This basis results in a clean, non-contact process with no heat-affected zones or material degradation.

  • Insert Installation

    We can add threaded metal inserts into parts to create threads for screws and bolts. This helps us tackle more complex metal fabrication projects.

Metal Fabrication Materials Supported

Here are the materials we support with our metal fabrication services:

Metal Fabrication Material Grade / Alloy Max. Sheet 
Material Thickness 
(in) Heat Treatable Tensile Strength (Ultimate, PSI) Fatigue Strength (PSI) Hardness (Brinell) Machinability (AISI Rating)
Metal Fabrication Material Grade / Alloy Max. Sheet 
Material Thickness 
(in) Heat Treatable Tensile Strength (Ultimate, PSI) Fatigue Strength (PSI) Hardness (Brinell) Machinability (AISI Rating)
Aluminum 1100-0 0.190 No 13000 5000 23 360%
Aluminum 1100-H14 0.190 No 18000 7200 32 360%
Aluminum 2024-0 0.125 Yes 27000 13000 47 360%
Aluminum 2024-T3 0.190 Yes 63800 20000 120 360%
Aluminum 2024-T81 0.090 Yes 70300 19000 128 360%
Aluminum 3002-0 0.125 No N/A N/A N/A 360%
Aluminum 3003-0 0.800 No 16000 7300 28 360%
Aluminum 3003-H14 0.190 No 23000 8700 42 360%
Aluminum 3003-H22 0.250 No 20000 10000 37 360%
Aluminum 5005-H14 0.130 No 24000 9900 48 360%
Aluminum 5005-H34 0.130 No 23000 11000 43 360%
Aluminum 5052-H32 0.220 No 34000 17000 60 360%
Aluminum 5052-H34 0.125 No 37000 18000 68 360%
Aluminum 5083-H116 0.190 No 47000 23000 83 360%
Aluminum 5086-H116 0.190 No 44000 22000 81 360%
Aluminum 6061-0 0.190 Yes 19000 8800 33 360%
Aluminum 6061-T4 0.190 Yes 33000 14000 63 360%
Aluminum 6061-T6 0.190 Yes 45000 14000 93 360%
Aluminum 7075-0 0.190 Yes 35000 18000 59 360%
Aluminum 7075-T6 0.190 Yes 83000 23000 150 360%
Copper C11000 0.140 No 25000-29000 11000-17000 82-92 60%
Stainless Steel 301 0.125 Yes 85000-210000 31000-88000 190-440 N/A
Stainless Steel 304 0.250 Yes 84000-170000 30000-63000 170-360 40%
Stainless Steel 304L 0.250 Yes 78000-170000 25000-62000 160-350 40%
Stainless Steel 316 0.250 Yes 76000-170000 30000-63000 160-360 36%
Stainless Steel 316L 0.250 Yes 77000-170000 25000-65000 170-350 36%
Titanium 6AL-4V 0.125 Yes 131000 74000 334 22%
Titanium 6AL-4V ELI 0.125 Yes 125000 20300 326 22%
Titanium 3Al 2.5 0.171 No 89900 24700 256 N/A

Metal fabrication services can be used to create a vast array of parts and projects. To learn more about our metal fabrication services, contact us today.

Prototek's Locations

215 Devcon Dr.
San Jose, CA 95112

Sac EDM a Prototek Company
11341 Sunrise Park Dr.
Rancho Cordova, CA 95742

Midwest Prototyping a Prototek Company
1100 W 120th Ave #100
Westminster, CO 80234

900 Cheyenne Ave.
Grafton, WI 53024

Midwest Prototyping a Prototek Company
10949 Blackhawk Dr
Blue Mounds, WI 53517

Prototype Solutions Group a Prototek Company
1621 Indianhead Drive
Menomonie, WI 54751

205 Pine St.
Contoocook, NH 03229

244 Burnham Intervale Rd.
Contoocook, NH 03229

ProtoCAM A Prototek Company
6620 Grant Way
Allentown, PA 18106

Prototek Trending Topics

Sheet Metal

CNC Machining

Additive Manufacturing

Frequently Asked Questions

Are you a broker or a manufacturer?

We are a full service sheet metal and machining manufacturer with four U.S. production facilities across the nation allowing us to deliver your high-quality parts FAST.

Does PROTOTEK manufacture in higher-volume quantities?

We focus on prototypes to low-volume production and can do larger runs. All our parts, from one – to 100 – to 1,000+ are always delivered with production-quality finish.

What are your payment terms?

PROTOTEK offers Net 30 payment terms for established customers with good credit.

What file formats are required or suggested for requesting a quote?

We accept .STP, .DWG, .IGS, .PDF, Parasolid files, and more.

What if I need help with my part design?

Our estimators are on hand to discuss your specific job needs. Our expert team can help you move your project smoothly through the design process and on to delivery.

If I do not have a CAD model, can you quote/fabricate my parts?

Yes, we can work directly from your drawings. Additional engineering charge (NRC) may apply depending on complexity.

How do I submit my NDA and other document requests?

Submit your NDA, Approved Vendor and other document requests to your sales rep or estimator.

How long is a quote valid?

Our quotes stand firm for 7 days from the date of issue.

How fast can I get my order?

Lead time for standard orders is 10 business days. Expediting options are available, including emergency service – down to as fast as 1-2 business days, depending on complexity of work and materials.