Shop Tour · Miami Gardens, Florida
Take a Tour of MJM Manufacturing
Most of our customers know us by quotes, purchase orders and the boxes that show up on their dock. This is the other side: a walk through our 44,000 sq ft shop in Miami Gardens, following a part from your drawing to finished parts, and a look at what we are building next.
Mike Mijares, founder and CEO, and Alex Mijares, COO
Welcome
A Family Shop Since 1979
MJM started in 1979 in a two-car garage with 22 accounts. Forty-seven years later we are a second-generation, family-owned manufacturer with 80+ people and more than 650 active customers, many of whom have been with us for decades. Our founder, Mike Mijares, is still on the floor every day.
Plenty of our team members have 20 to 40 years with us. That experience is the real reason parts come out right the first time, and it is what you are paying for when you send us a drawing.
Stop 1
Quoting and Engineering
Every job starts here. Your STEP files and PDF drawings land with our estimating and engineering team, who read the print, check the model against it, and flag anything that could cost you money before it gets to the floor: a tolerance tighter than the process needs, a bend too close to a hole, a material that is hard to source. Most quotes go back in 24 to 48 hours.
Not sure what to send? Our article on what to send for an accurate sheet metal quote covers it.
Stop 2
Laser Cutting
Our Amada Ventis 3015 AJ 4 kW fiber laser
Once the program is written, the material goes to one of our five Amada lasers: a 4 kW Ventis fiber laser with Locus Beam Control, three 3 kW Ensis fiber lasers and an LC 2415 CO2, all on 5 x 10 ft beds. Three on-site nitrogen generators feed them gas at up to 99.9999% purity, which is why our edges come off clean and oxide-free. We cut mild steel to 1 in., stainless and aluminum to 5/8 in., and hold ±0.005 in.
More on the fleet: five Amada lasers and what we cut.
Stop 3
Punching and Forming
Amada AE 2610NT CNC turret punch
Flat parts with louvers, embosses or high hole counts go to our Amada AE 2610NT CNC turret punch, backed by a library of 794 standard and special tools you can browse on our tool library page. From there, parts move to the brake line: nine Amada press brakes, the largest 240 tons and 14 ft long, holding ±0.5° on angles. Three Knuth plate rollers handle cylinders and radii up to 7 ft wide.
The newest machines on the brake line are an Amada HRB 2204 and two Amada EG 4010 press brakes.
Amada HRB 2204 press brake
Two Amada EG 4010 press brakes
The press brake line
Stop 4
Welding
Our welding department runs nine IPG fiber laser welders, three of them with dual wire feed, plus TIG, MIG and three Sciaky spot welders. We weld to AWS D17.1 with Lockheed Martin approval, AWS D1.1, D1.2 and D9.1M, from thin stainless enclosures to structural frames.
The full rundown of processes, codes and equipment is on our new welding services page.
Stop 5
Deburring and Finishing
Next, parts run through our three Timesavers wet deburring machines so edges are safe to handle and ready for finish. Then come powder coat, paint, anodize and plating, so your parts arrive finished and ready to install, not as raw metal you have to chase around town.
Stop 6
Quality Control
Before anything ships it goes through our quality department. Our Amada Fabri-Vision runs automated optical inspection with 24 cameras, and the Keyence XM-5000 portable CMM and Keyence LM-X optical system measure parts in seconds, with printed reports archived to the job. First article inspection reports follow AS9102, and every shipment carries a Certificate of Conformance.
All of it runs under our ISO 9001:2015 and AS9100 Rev D quality system. We are ITAR registered with the U.S. Department of State.
Stop 7
Assembly and Hardware
Press-in hardware (nuts, studs and standoffs) goes in on four Haeger presses. From there, many jobs leave as complete assemblies: enclosures with hardware, hinges and gaskets installed, racks and chassis built to print, and kits packed to your bill of materials.
What’s Next
A Two-Story, 8,000 Sq Ft Addition
The new addition under construction, November 2026
Out back, construction is well underway on a two-story, 8,000 sq ft addition. It will house a new, state-of-the-art quality control room and a dedicated material handling area, and our shipping and receiving will move there from the main building.
That frees up floor space in the main shop for new equipment, and we are already adding a tube laser, a robotic welder and a larger machining department. More capacity means shorter lead times and more of your parts made under one roof.
See It in Person
We love showing customers around. Call (305) 620-2020 to set up a visit, Monday to Friday, 8:00am to 5:00pm. Or send us the next drawing on your desk; we will have a quote back in 24 to 48 hours.