Our Capabilities

Dennen Steel provides a fully integrated manufacturing solution, from coil processing and precision stamping to advanced assembly, finishing, and supply chain optimization, backed by decades of experience and quality leadership. Dennen Steel has expanded its capabilities to support the growing demand for battery energy storage systems (BESS) and green energy infrastructure. We provide high-quality steel fabrication and structural solutions for energy storage facilities and renewable energy projects. 

Engineering

  • Design for Manufacturability Support
  • Product Design Support
  • Prototype Builds
  • VA/VE Support
  • In-House Toolroom
  • Packaging Development
  • In-House CMM

Stamping

  • Automatic Press Lines ranging from 275 to 600 tons, handling coils up to 72” wide
  • Progressive & Line dies
  • In-line leveling capable of shape correction
  • Clean line capable of handling Class A material
  • Robotic part transfer system
  • In-die tapping, studding, nutting and more
Value Added Assemblies

Assembly

  • Robotic MIG Welders
  • Resistance Welding Machines
  • Repack/ Kitting Cells
  • Part Vision Inspection Cell
Value Added Assemblies

Internal Slitting

  • Slitter available for in-house use to shorten supply chain reducing cost and time for our customers
  • 72” width capacity
  • 0.010” to 0.149” gauge range

Material & Coating Types

Blanking

  • Enameled Steel (Type 1 and 3)
  • Low Carbon (270 Mpa)
  • Coated Steel (Galvanized, Galvannealed, Aluminized)
  • HSLA (320-780 Mpa)
  • AHSS (590, 780, 980 Mpa)
  • Stainless Steel (300 & 400 series) – Polished, Vinyl Film 
  • Aluminum (3000, 4000, 5000, 6000 Series)
  • Dual Phase Steel (DP)

Stamping

  • Enameled Steel (Type 1 and 3)
  • Low Carbon (270 Mpa)
  • Coated Steel (Galvanized, Galvannealed, Aluminized)
  • HSLA (320 Mpa)
  • Stainless Steel (300 & 400 series) – Polished, Vinyl Film 
  • Aluminum (3000, 4000, 5000, 6000 Series)
  • Dual Phase Steel (DP)
  • Deep Draw Steel (DDS)

Coating

  • Zinc
  • Zinc Nickle
  • Magni
  • Phosphate

Painting

  • A-Coat
  • E-Coat
  • Powder Coat

Finishing

  • Deburr
  • Grinding
  • Part Washing

Green Initiatives

  • Battery energy storage system (BESS) structural steel.

  • Steel fabrication for renewable and green energy projectsFabrication supporting utility and industrial energy facilities

Assembly

  • Robotic MIG welding
  • Projection Welding
  • Tapping
  • Staking
  • Fastening/ Assembly
  • Vision Inspection
  • RePacking/ Sorting
  • Piercing
  • Caulking

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