High-Volume Silo Fabrication

Industry Application 🔋 Lithium-Ion EPCC Plant
Scale / Quantity 📦 100 Storage Silo Sets
Value Engineering đź’Ą Transition to Laser Welding

Optimizing Efficiency for Lithium Battery Material Factories

Openex Metal Fab was recently commissioned by a premier EPCC (Engineering, Procurement, Construction, and Commissioning) contractor to custom-fabricate the internal storage and process silos for a cutting-edge Lithium Battery Materials Smart Factory.

Constructed entirely from 304 Stainless Steel (ranging from 2mm to 20mm thick) to ensure zero material contamination, this staggering order consisting of 100 complete units challenged our logistics, engineering creativity, and production workflows. We initiated full-scope manufacturing—routing raw plate through leveling, fiber laser cutting, precision CNC rolling and press braking, down to surface treatment and highly specialized export packaging.

The Welding Challenge: TIG vs. Automated Laser Welding

Proactive Value Engineering: The initial engineering blueprints strictly required all silos to be fused using standard Argon Arc (TIG) welding. Understanding that manually TIG welding 100 sets would drive up time-on-floor and manual labor costs immensely, the Openex engineering division proactively suggested an alternative path.

During prototyping, we deliberately built two exact models for the client side-by-side: one fabricated strictly to drawing via TIG, and one built using our Automated Fiber Laser Welding cells.

During the rigorous prototype inspection phases conducted by the client’s Quality & Engineering staff, both test specimens were deeply analyzed. Not only did the dimensional accuracies perfectly pass, but the Laser Welded model heavily outperformed standard TIG regarding weld-seam aesthetics and minimizing hazardous Heat Affected Zone (HAZ) warping on the thinner 2mm steel walls.

The Result? The client completely abandoned the original TIG requirement. We fully shifted the 100-batch production sequence over to our automated laser welding process—slashing turnaround capacity rates and generating a vast manufacturing cost savings transferred directly to the client.

Client QA Audit & Batch Delivery Photos

Showcasing the multi-layered on-site verification testing, semi-finished cylinder alignments, and final pre-dispatch rows executed perfectly to specs.

Engineering staff verifying prototype
Client Engineer Dimension Audits
Verifying steel rolled silo cylinder
Precision 304SS Rolled Cylinders
Flawless inner silo laser welds
Checking Smooth Inner Seam Profiles
Inspecting dome structures
Evaluating Process Cover Mountings
100 pieces scaled batch manufacturing
Batch Production Queue Scaling
Silo components ready for weld sequence
Laser-Cut Machined Assembly Hardware

Manufacturing F.A.Q. Smart Factories

Why was laser welding preferred over TIG (Argon) for these silos? â–Ľ

Fiber laser welding produces extremely concentrated, narrow heat generation parameters. This heavily minimizes the Heat-Affected Zone (HAZ), reducing part distortion and thermal-twisting—especially on thinner 304SS components (like 2mm thicknesses). Laser welding provides unmatched visual finish and dramatically faster production speed profiles across high volumes compared to manual Tungsten arcs.

Can Openex accommodate varied thickness stainless sheets in one batch? â–Ľ

Absolutely. This specific Lithium plant blueprint spanned component wall requirements spanning continuously from 2mm light sheet-metal gauges up into rigid 20mm 304L stainless plates requiring diverse CNC routing, multi-staged laser profile cuts, and complex transitions seamlessly executed in our 180-acre manufacturing hall.

Does Openex provide secondary assembly finishing operations like Painting or Shipping prep? â–Ľ

Yes. Delivering single, comprehensive sourcing is an Openex guarantee. Every item generated through machining/welding seamlessly transitioned down into finishing—including passivated industrial surface preparations, spray-coating application protections, down through structured timber custom-packaging intended precisely to protect delicate flanges securely across transportation boundaries.