44,000 Sq Ft · Miami, Florida · Made in USA Since 1979

Precision Sheet Metal Fabrication Services

AS9100 certified. ITAR registered. DBE certified. 47 years of precision fabrication. Every process in-house under one roof — from laser cutting and forming to welding, machining, and finishing.

What We Do

Fabrication Services

Every process performed in-house at our Miami facility. No subcontracting your critical work to unknown shops — one team, one quality system, one point of accountability.

Laser Cutting

5 Amada fiber laser systems — Ventis 3015 AJ (4kW) and 3× Ensis 3015 AJ (3kW) plus Amada LC 2415 A III CO2. Tolerance ±0.005″. Cuts steel to 1″, aluminum and stainless to 0.625″, copper and brass to 0.375″. Nitrogen assist for oxide-free edges.

Aerospace · Defense · Robotics · OEM · See Laser Cutting →

CNC Turret Punching

Amada AE 2610NT CNC turret punch press. Up to 0.250″ steel and aluminum. Punching, perforating, louvering, embossing, lancing, blanking, and knockouts. Cost-effective for high-volume runs with repeating hole patterns. Handles steel, aluminum, stainless, galvanneal, titanium, polycarbonate, and non-metallic materials.

OEM · Data Centers · Enclosures · All Industries

Forming & Bending

9 Amada forming machines — HRB 2204 (240 ton, 14′), 6× RG 80 (80 ton CNC), 2× EG 4010 (servo-electric). Bend angle ±0.5°, flange length ±0.010″. 3 Knuth plate rollers (3′, 4′, 7′) for cylindrical and curved components. Offline CNC programming with 3D simulation before first part.

All Industries · Up to 14 Foot Parts

Welding

9× IPG 2kW fiber laser welders. 3× Sciaky spot welders (75/100/200 KVA). Certified TIG (GTAW) and MIG (GMAW) welding. AWS D1.1, D1.2, D9.1M, and D17.1 certified. Lockheed Martin aerospace welding program approval. Lloyd’s Register LR 33932. WPS and PQR documentation available.

Aerospace · Defense · Robotics · Structural · All Industries

CNC Machining & Milling

Mazak BCN 530 C CNC machining center. Milling, drilling, tapping, boring, reaming. Standard tolerance ±0.005″. Secondary machining on fabricated assemblies for critical features. Johnson 95-ton stamping press. FlexArm tapping (up to 3/8″ and 1″ hydraulic). Amada HFA 250W band saw.

Aerospace · Defense · OEM · All Industries

Hardware Insertion & Assembly

4 Haeger hardware insertion presses and Auto-Sert automated insertion machine. PEM fasteners, standoffs, cage nuts, studs, hinges, and custom hardware installed accurately across production runs. Hardware insertion force verified with Com-Ten DFM5000 digital force meter. Minor assemblies and hardware kitting.

Kiosks · Electronics · Transportation · All Industries

Finishing & Surface Treatment

Turn-key finishing coordinated through trusted partners — powder coating, painting, anodizing, plating. In-house: silk screening, laser part marking (2 systems), laser etching, sand blasting, deburring (3× Timesavers Lynx, AEM deburrer, 4 tumblers). All finishing managed within our quality system.

All Industries · Brand-Matched Colors

Inspection & Quality

Amada Fabri-Vision automated optical inspection. Keyence LM-X Series non-contact optical measurement. Keyence XM-5000 handheld CMM. Com-Ten DFM5000 force meter. AS9100 certified QMS. First article inspection (FAI) reports, in-process records, material certifications (MTRs), and dimensional reports available.

Aerospace · Defense · Medical · All Programs

Engineering & DFM Review

Highly qualified engineering department reviews all drawings for design for manufacturability (DFM) before production begins. We identify bend radius issues, hole proximity problems, and tolerance concerns before the first prototype is cut — saving time and cost. 3× Flash Forge 3D printers for prototype tooling and fixtures. 24–48 hour quote turnaround.

All Industries · Prototype Through Production

What We Work With

Materials

MJM Manufacturing works with metals and non-metallic materials across a broad range of gauges and alloys. For material-specific laser cutting details, see our Materials hub →. If your material is not listed, contact us at sales@mjmmfg.com to confirm capability.

Material	Common Alloys / Grades	Typical Applications
Aluminum	5052-H32, 6061-T6, 3003, 5083	Aerospace, marine, lighting, enclosures, dock boxes
Stainless Steel	304, 316	Marine, food service, medical, outdoor enclosures
Cold Rolled Steel (CRS)	ASTM A1008	Enclosures, kiosks, cabinets, OEM equipment
Hot Rolled Steel (HRS)	ASTM A36	Structural components, heavy frames, energy equipment
Galvanized Steel	G60, G90	Outdoor enclosures, structural, HVAC
Galvanneal	A40, A60	Painted enclosures, automotive, appliance
Copper	C110, C101	RF shielding, electrical, decorative lighting
Brass	C260, C360	Decorative, marine fittings, electrical components
Titanium	Grade 2, Grade 5	Aerospace, defense, medical
Beryllium Copper	C17200	Aerospace, electronics, springs
Tin Plated Steel	ETP	Food contact, corrosion resistance
Polycarbonate / Lexan	General purpose, UV stabilized	Panels, covers, windows, kiosk components
G-10 / FR4 Epoxy Board	Grade G-10	Electronics, aerospace insulation
Delrin / Nylon	Acetal, Nylon 6/6	Bushings, spacers, wear parts
Expanded & Perforated Metals	Steel, aluminum, stainless	Ventilation, filtration, architectural panels
Mylar / Formex / Phenolics / Teflon	Various	Specialty electronics and aerospace applications

Who We Serve

Industries

Aerospace
ITAR · AS9100 · AWS D17.1
Defense
ITAR · CAGE 0YLX1 · MIL-I-45208A
Robotics
Enclosures · Prototype to Production
OEM Manufacturing
Turn-Key · Full Production Support

Data Centers
Rack Enclosures · Infrastructure
Medical Device
AS9100 · CMM Inspection · FAI
Transportation
DBE Certified · Transit OEM
Marine
Dock Boxes · Marine OEM

Lighting
Architectural · Theatrical · OEM
Kiosks
ATMs · Transit · EV Charging
Telecommunications
Enclosures · RF Shielding · Telecom OEM
Energy & Power
Solar · EV · Switchgear · DBE

47+

Years in Business

80+

Expert Employees

44K

Sq Ft Facility

Laser Systems

Certifications

90K+

Projects Completed

Ready to Start Your Project?

Email drawings to sales@mjmmfg.com for a quote within 24–48 hours. Call (305) 620-2020 for urgent inquiries.

REQUEST A QUOTE
WHY MJM?

Explore More

Laser Cutting →

5 Amada fiber laser systems

Materials →

All metals and alloys

Industries →

All sectors we serve

Certifications →

AS9100, ITAR, ISO 9001

Richard Havass

2026-05-31

As a customer, I have been working with MJM Manufacturing for approximately 35 years. The expertise of Mike Mijares and his team at MJM is top notch. Whenever I have a new part design, I typically review the design of the part with MJM to ensure that I am using the most cost-efficient manufacturing process to produce the parts as economically as possible. There was a part that we had made years ago using a progressive die to emboss a curved channel into a sheet metal part. The cost of the progressive die for this part was $55K. The redesign of the part from MJM consisted of $1200 in tooling to make the new part profile. Parts came out great and saved tens of thousands in tooling. Lastly, whether MJM produces a prototype or a production run, the appearance of the part is pristine, no tool marks or scratches on any part. In the 35 years that I have worked with Mike and his team, I have found them to be one big family. Mike’s love for his business is refreshing! You rarely see a person that is so charged to get up for work every day! Richard Havass Mechanical Engineering Manager JCI-Sensormatic

Sulen Ojeda Fuentes

2025-01-09

Esta fábrica está llena de muy buenos profesionales son una gran familia trabajadores de años con muy buena experiencia .lo recomiendo porque son un gran equipo. Y realizan muy buen trabajo.

Emilio Lopez

2020-02-02

For over two years, MJM has provided our business with high quality sheet metal parts, and they also suggested improvements to part designs to help us reduce costs and improve assembly processes. They also keep their technology and machines up-to-date, so the new capabilities translate to new options for our customers.