Got Questions? We Have Answers.
Frequently Asked
Questions
Everything you need to know about working with MJM Manufacturing — from certifications and capabilities to quoting, ordering, and quality.
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Quality & Certifications
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Quoting & Orders
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Materials & Finishing
Section 01
Capabilities & Services
What does MJM Manufacturing do?
MJM Manufacturing is a full-service precision sheet metal fabrication and OEM manufacturing company located in Miami, Florida. We specialize in laser cutting, CNC turret punching, press brake forming, TIG welding, MIG welding, spot welding, CNC machining, milling, plating, silk screening, deburring, hardware insertion, and assembly — all under one roof in our 44,000 sq ft facility. As a turn-key manufacturer, we also coordinate powder coating, painting, and other finishing through trusted partners so your parts arrive complete and ready to use. We serve aerospace, defense, robotics, data center, OEM, and architectural industries across the United States.
Is MJM Manufacturing a one-stop shop?
Yes. MJM Manufacturing is a fully integrated turn-key manufacturer. Your project goes from blueprint to finished product under our management — we handle fabrication, welding, machining, assembly, and coordinate finishing services like powder coating and plating through vetted partners. You deal with one company, one point of contact, and one quality standard from start to finish. This eliminates the delays and quality risks of managing multiple vendors yourself.
Does MJM Manufacturing do aerospace work?
Yes. MJM Manufacturing has decades of experience in precision aerospace sheet metal fabrication. We have long-standing relationships with Boeing, Lockheed Martin, Northrop Grumman, BAE Systems, L3 Harris, Bell Textron, and Goodrich. Our facility is ITAR registered, ISO 9001 certified, and AS9100 certified — the quality standards required for aerospace and defense manufacturing. We produce components and assemblies for aerospace customers from prototype through full production.
Does MJM do prototypes or only production runs?
Both. MJM Manufacturing supports the full manufacturing lifecycle — from a single prototype part to medium and high-volume production runs. Many of our clients start with a prototype to validate a design, then transition to ongoing production with MJM. Our computerized quoting, scheduling, and tracking systems handle both efficiently. There is no minimum order quantity for a quote — contact us and we will review your project.
Does MJM Manufacturing offer powder coating?
Yes — as part of our turn-key service offering. MJM coordinates powder coating through trusted finishing partners, managing the process on your behalf so you don’t have to deal with a separate vendor. Your parts go out for powder coating and come back finished, inspected, and ready to ship to you. We also offer painting, plating, silk screening, part marking, and etching. Specify your finishing requirements when requesting a quote and we will confirm pricing and lead time.
What types of welding does MJM offer?
MJM Manufacturing offers TIG welding, MIG welding, and spot welding. Our certified welders handle structural assemblies, aerospace components, and production fabrication. TIG welding is used for precision aerospace and structural work requiring clean, high-quality welds. MIG welding is used for structural and higher-volume production fabrication. Spot welding is used for sheet metal assemblies requiring fast, consistent resistance welds.
Does MJM offer engineering and design assistance?
Yes. MJM Manufacturing has a highly qualified engineering department that can provide design for manufacturability (DFM) review and engineering support. If you have a drawing, we will review it for manufacturability and flag any issues before production begins. If you have a concept or rough sketch, our team can help develop it into a producible design. We work with standard CAD file formats and can accommodate a wide range of engineering documentation.
What industries does MJM Manufacturing serve?
MJM Manufacturing serves aerospace, defense, robotics, data centers, OEM manufacturing, and architectural industries across the United States. Our client list includes Fortune 500 companies, defense contractors, government programs, and commercial manufacturers. We have served customers from Miami and South Florida as well as nationally, with parts shipped across the country from our 44,000 sq ft Miami facility.
Section 02
Quality & Certifications
Is MJM Manufacturing ITAR registered?
Yes. MJM Manufacturing is ITAR registered (International Traffic in Arms Regulations). This registration is required for manufacturing companies working on defense and government programs involving controlled technology, components, and assemblies. Our ITAR registration means we can legally manufacture, handle, and ship controlled defense articles and technical data. If your project has ITAR requirements, MJM is fully qualified to support it.
Is MJM Manufacturing AS9100 certified?
Yes. MJM Manufacturing is AS9100 certified — the internationally recognized quality management standard for the aerospace and defense manufacturing industry. AS9100 certification demonstrates that our quality system meets the rigorous requirements of aerospace customers including traceability, risk management, process control, and continual improvement. This certification is one of the key reasons aerospace and defense companies trust MJM as a long-term supplier.
Is MJM Manufacturing ISO 9001 certified?
Yes. MJM Manufacturing is ISO 9001 certified. ISO 9001 is the globally recognized standard for quality management systems, covering customer focus, process approach, continual improvement, and evidence-based decision making. Our ISO 9001 certification combined with AS9100 and ITAR registration demonstrates a comprehensive, audited quality system that meets the demands of aerospace, defense, and industrial customers.
What quality certifications does MJM Manufacturing hold?
MJM Manufacturing holds 17 independent certifications. Key credentials include: AS9100 (aerospace quality management), ISO 9001 (quality management systems), ISO 9000, ITAR registration (defense and government compliance), MIL-I-45208A (military inspection system requirements), DBE (Disadvantaged Business Enterprise certification), certified minority-owned small business, SBA small business concern, SFMA (Sheet Fabrication and Manufacturing Association) membership, Green Business certification, and Dun & Bradstreet registration. Contact us for the complete list relevant to your project or program.
Is MJM Manufacturing DBE certified?
Yes. MJM Manufacturing is DBE (Disadvantaged Business Enterprise) certified. DBE certification is recognized by federal and state transportation and government agencies and is required for supplier participation in many government-funded projects and programs. Combined with our minority-owned small business certification, MJM qualifies for a wide range of supplier diversity, set-aside, and subcontracting requirements on government and commercial programs.
Is MJM a minority-owned or small business?
Yes. MJM Manufacturing is a certified Hispanic American owned small business, founded by Mike Mijares in 1979. We are recognized as a Small Business Concern by the SBA and hold DBE (Disadvantaged Business Enterprise) certification. These certifications qualify MJM for supplier diversity programs, government small business set-aside contracts, and subcontracting requirements with large prime contractors. If your procurement program has small business, minority-owned, or DBE supplier requirements, MJM qualifies.
What is MIL-I-45208A and does MJM comply?
MIL-I-45208A is a military standard for inspection system requirements. It covers the documentation, inspection procedures, and process controls required for manufacturing defense and government components. MJM Manufacturing maintains MIL-I-45208A compliance as part of our quality management system. This standard, combined with our AS9100 and ISO 9001 certifications, gives defense contractors and government programs the confidence they need when qualifying MJM as a supplier.
How does MJM Manufacturing handle nonconforming parts and warranty?
Upon delivery of completed parts, customers have 30 days to notify MJM Manufacturing of any parts that were not made to print or that have a quality issue. If a nonconformance is identified within that window, contact us immediately at sales@mjmmfg.com or (305) 620-2020. MJM will provide full inspection reports documenting the issue and work with you to rework or replace the nonconforming parts. Do not return parts without first contacting us — we will issue a Return Material Authorization (RMA) and guide you through the process.
Section 03
Quoting & Orders
How do I get a quote from MJM Manufacturing?
To request a quote, email your drawings, specifications, and project details directly to sales@mjmmfg.com. You can also use the Request a Quote form on our website or call us at (305) 620-2020. Please include your part drawings or CAD files, material requirements, quantity needed, and any special finishing or compliance requirements. Our engineering team reviews all quote requests and responds within 24 to 48 hours.
How fast does MJM turn around quotes?
MJM Manufacturing provides a 24 to 48 hour turnaround on quotes. Our computerized quoting system allows our engineering team to quickly analyze your drawings and specifications and return accurate pricing without unnecessary delays. We understand that engineering teams and procurement managers are working against real deadlines — we take quote response time seriously. For urgent requests, call us directly at (305) 620-2020.
What information does MJM need to process an order?
To process a purchase order, email your PO to sales@mjmmfg.com. Your purchase order should include your billing address, shipping address, part numbers with revision codes if applicable, quantity ordered, requested ship date, and any special finishing or compliance requirements. We will acknowledge your purchase order and confirm the delivery date within 24 hours of receipt. For first-time customers, we will request a credit application to establish your account before the first order ships.
Does MJM Manufacturing have minimum order quantities?
MJM Manufacturing supports prototypes, short runs, medium runs, and high-volume production. There is no strict minimum order quantity — we evaluate each project individually. Setup costs are factored into pricing, so smaller quantities may have a higher per-unit cost than large production runs, but we will quote any project. Contact us at sales@mjmmfg.com to discuss your specific volume requirements.
What are MJM Manufacturing’s payment terms?
For established customers, MJM Manufacturing’s payment terms are 1% 10 Net 30 — meaning you receive a 1% discount if payment is made within 10 days, with the full balance due within 30 days. For new customers, we require a credit application before terms are extended. We accept credit card payments for initial orders while credit is being established. Contact us at sales@mjmmfg.com to begin the credit application process.
Can MJM handle blanket purchase orders?
Yes. MJM Manufacturing works with blanket purchase orders for customers with ongoing or recurring production requirements. Blanket orders allow you to lock in pricing and capacity for annual requirements with scheduled release dates. We will work with you to establish safety stock quantities and lead time requirements so that releases are fulfilled promptly. Contact our sales team at sales@mjmmfg.com to discuss a blanket order arrangement for your program.
What is MJM Manufacturing’s return policy?
Customers have 30 days from delivery to notify MJM Manufacturing of any parts that were not made to print or have a quality issue. Contact us at sales@mjmmfg.com or (305) 620-2020 within that window. MJM will provide full inspection reports documenting the nonconformance and will rework or replace the affected parts. Do not return parts without first obtaining a Return Material Authorization (RMA) number from our team.
Section 04
Materials & Finishing
What materials does MJM Manufacturing work with?
MJM Manufacturing works with a wide range of metals and materials including stainless steel, galvanized steel, cold rolled steel (CRS), hot roll steel (HRS), aluminum, copper, brass, bronze, titanium, and beryllium copper. We also work with non-metallic materials including Lexan, G-10 epoxy board, Mylar, Formex, Delrin, nylon, plexiglass, phenolics, Teflon, expanded metals, perforated metals, and tin plated steel. If you have a specific material requirement not listed, contact us at sales@mjmmfg.com to discuss.
What finishing services does MJM offer?
As a turn-key manufacturer, MJM offers a complete range of finishing services. In-house we provide silk screening, part marking, etching, and plating. For powder coating, painting, and anodizing, we coordinate with trusted finishing partners on your behalf — you deal with MJM only, not a separate finishing vendor. Your parts are managed through our quality system from raw material to finished product. Specify your finishing requirements when requesting a quote at sales@mjmmfg.com.
Does MJM provide raw material or does the customer supply it?
MJM Manufacturing provides raw material for the vast majority of projects. We maintain stock of commonly used sheet metal materials and order custom-cut stock for specific jobs to minimize waste and optimize cost. If your project has special material traceability requirements — such as certified material test reports (MTRs) for aerospace or defense programs — let us know when requesting a quote and we will accommodate those requirements in our procurement process.
Does MJM do laser cutting or CNC punching — and how do you decide which?
MJM Manufacturing has both CNC fiber laser cutting and CNC turret punching capabilities in-house. The choice between laser cutting and CNC punching depends on the geometry of your part, the material, the volume, and the finishing requirements. Laser cutting is ideal for complex geometries and tight tolerances. CNC turret punching is often more cost-effective for high-volume runs with standard hole patterns. Our engineering team will recommend the optimal process for your specific part when quoting.
Where is MJM Manufacturing located and do you ship nationally?
MJM Manufacturing is located at 5205 NW 161 Street, Miami, FL 33014. Our 44,000 sq ft facility has been operating in Miami since 1979. While we are based in South Florida, we ship finished parts nationally and have served customers across the United States including aerospace and defense contractors in multiple states. Local customers are welcome to visit our facility by appointment. Contact us at (305) 620-2020 or sales@mjmmfg.com to arrange a visit or discuss shipping requirements for your project.
Still Have Questions?
Our engineering team is ready to answer your specific project questions. Email us at sales@mjmmfg.com or call (305) 620-2020 — we respond within 24 hours.
MJM Manufacturing, Inc. | AS9100 Certified | ISO 9001 Certified | ITAR Registered | DBE Certified | MIL-I-45208A | 17 Independent Certifications | Minority-Owned Small Business | 5205 NW 161 Street, Miami, FL 33014 | (305) 620-2020