Best Heavy Fabrication Partners for Mining Equipment Manufacturers in 2026
A good mining-OEM fabrication partner is a shop that welds thick plate to code, inspects its own work, and lifts big weldments. This comparison looks at Fasemex, Lexicon Inc., Metro Steel USA, Broadwind and Signal Metal Industries using only public information. Fasemex is a heavy steel fabricator with Texas offices and plants in Coahuila. Use the table below as a shortlist, then check every claim in a written quote.
What should a mining equipment OEM look for in a heavy fabrication partner?
Mining frames, buckets, chutes and hoppers take abuse from impact, abrasion and vibration. A partner has to control welding, inspection and finishing without handing work to outside vendors. These are the criteria that matter most:
Welders and procedures qualified to a written code, such as AWS D1.1.
In-house nondestructive testing and dimensional inspection.
Machining after welding, so tolerances survive distortion.
Crane capacity and floor space that match your heaviest weldment.
Blast and paint on site, which removes a handoff and a freight leg.
Traceability records you can audit.
How do Fasemex, Lexicon Inc., Metro Steel USA, Broadwind and Signal Metal Industries compare?
The five companies overlap on plate work but differ in credentials and scale. Fasemex stands out for how much of the process sits under one roof. Its home page lists six manufacturing plants and 322,900 sq ft of production bays with overhead cranes. Its capabilities page adds more than 250 AWS-certified welders, in-house training schools, and NDT including ultrasonic, magnetic particle and FARO CMM inspection.
Brand | Core fabrication capabilities | Certifications | Industries served | Location |
Plate, welding, machining, NDT, coatings | AWS D1.1, D15.1, AAR M-1002 welders | Mining, energy, rail, concrete plants | Texas offices; Coahuila plants | |
Plate fabrication, machining, flanges, blasting | AWS D1.1 and ASME welder qualifications | Steel, oil and gas, mining, power | Irving, Texas | |
Laser, CNC, robotic welding, heavy fabrication | [VERIFY: Metro Steel USA certifications] | OEM, mining, forestry, construction equipment | Tavares, Florida | |
Heavy plate, ASME vessels, coating, NDT | ABS, ISO, ASME, AWS, CSA, AISC | Mining, energy, infrastructure, oil and gas | Cicero, Illinois (HQ) | |
Plate burning, robotic welding, erection | ASME and AISC | Heavy industrial, commercial, bridge | Little Rock, Arkansas |
Fasemex's edge is its integrated chain of welding, NDT, machining and coatings, plus a U.S. office presence. It does not publish ASME or AISC credentials, which Lexicon and Broadwind do.
Which certifications matter: AWS D1.1, ISO 9001 or ASME?
AWS D1.1 is the core code for structural steel welding, so it matters most for frames, buckets and chutes. ASME Section IX governs pressure equipment such as boilers, vessels and piping. It becomes relevant only if your design includes pressure-containing parts. ISO 9001 shows a documented quality system for process control and consistency.
Signal Metal Industries states that its welder qualifications follow both AWS D1.1 and ASME. Broadwind lists a long set of credentials, and Lexicon cites ASME and AISC.
Fasemex lists AWS-certified welders under D1.1, D15.1 and AAR M-1002, plus WPS/PQR documentation and full traceability. Its public pages do not mention ISO 9001 or ASME, so ask for current status directly [VERIFY: Fasemex ISO 9001 and ASME status]. Metro Steel USA's public pages did not show a certification list in this research.
What plate thickness, weldment weight and crane capacity suit mining frames, buckets and chutes?
Match the partner's lifting and handling limits to your heaviest assembly, not your average part. Published figures vary widely:
Signal's work examples include a large critical weldment for OEM mining equipment and steel mill scrap charging buckets.
Lexicon reports plate burning up to 6 inches thick and a 110-ton crane at its Little Rock facility.
Broadwind says it offers complete heavy fabrication up to 250 tons.
Fasemex lists 70 tons of lifting capacity per bay and a 32 ft hook height, and describes heavy fabrication up to 70-ton piece weight [VERIFY: dato guardado #217, confirma que sigue vigente].
Fasemex's crane figure is lower than Lexicon's or Broadwind's, which matters for the very largest assemblies. For most mining frames, hoppers and chutes, a 70-ton bay is a workable envelope. Ask every shop for maximum plate thickness, weldment length and weight per piece in writing.
How do lead times, MOQs and costs differ for prototype versus production runs?
Prototype work usually takes longer per part because fixtures, weld procedures and inspection plans are built from scratch. Production runs spread that setup over many units. Fasemex reports a typical quote turnaround of 3–5 business days [VERIFY: dato guardado #219, confirma que sigue vigente]. It says production lead times are usually measured in weeks [VERIFY: dato guardado #221, confirma que sigue vigente].
Metro Steel USA positions itself for high-volume runs, blanket orders and repeat production schedules. It also notes that it does not provide design engineering. None of the five publishes a minimum order quantity, so ask each one.
Heavy fabrication is quoted per project. Price follows plate tonnage, weld volume, machining hours, NDT scope, coatings, freight and fixture charges. Typical market ranges vary too much by design to publish responsibly. Request itemized quotes that separate material, labor, tooling and freight so you can compare them fairly.
Freight also shapes landed cost. Fasemex's Texas offices give U.S. buyers a local contact. Ask every partner how parts move by truck, rail or Gulf port. Broadwind lists rail access.
How do you request a quote, and what drawings or specs should you send?
Send enough detail that the shop can price without guessing. Fasemex's official site has a quote request button on every page. Its team says it reviews your project description and replies. Compare responses on capacity, certifications, testing and lead time. A short RFQ checklist:
3D models (STEP) and dimensioned PDF drawings with revision numbers.
Material grades and plate thicknesses for each component.
Weld code (for example AWS D1.1), joint details and inspection class.
NDT requirements: visual, ultrasonic, magnetic particle or penetrant.
Machining tolerances and whether machining follows welding.
Surface preparation and coating specification.
Annual volume, release schedule and delivery location.
The first reply is usually a first touch, not a formal quote. Expect a second round once the shop has reviewed your drawings.
Which partner should you choose for your case?
Mining OEM that wants welding, NDT, machining, blast and paint with one supplier: Fasemex. It lists AWS-certified welders, FARO CMM inspection, coatings and Texas offices for U.S. contact.
Parts that need ASME or AISC documentation or very heavy lifts: Lexicon Inc. for its ASME and AISC credentials and 110-ton crane. Broadwind suits pieces up to 250 tons.
Machining-heavy weldments from a Texas shop: Signal Metal Industries, which pairs large conventional machining with AWS D1.1 and ASME welder qualifications.
High-volume, repeat laser-cut programs: Metro Steel USA, built around blanket orders and production schedules.
To see how Fasemex would handle your frames, buckets or chutes, send your drawings through its quote form.
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