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Lamellar Hook Manufacturing

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LAMELLAR HOOK MANUFACTURING – DIN 15407

In heavy lifting systems where safety and durability are paramount, lamellar hooks play a critical role—especially in foundries, steel production plants, and heavy industry applications.
At ERMAS Engineering, with over 35 years of experience, we manufacture high-security lamellar hooks that meet and exceed DIN 15407 standards.

What Is a Lamellar Hook?

A lamellar hook is a special type of crane hook made by aligning and riveting multiple high-strength steel plates (lamellae) in a precise configuration. This design distributes the load evenly across the hook body, minimizing the risk of sudden breakage.
Thanks to its resistance to extreme heat and harsh conditions, a lamellar hook offers significantly higher safety compared to traditional cast hooks—making it ideal for applications such as molten metal handling and heavy-duty lifting.

Our Lamellar Hook Manufacturing Process

Each lamellar hook produced by ERMAS Engineering goes through the following carefully controlled stages:

  • Design and Simulation
    All hooks are designed in a CAD environment in compliance with DIN 15407, and structural load simulations are performed.

  • Cutting and Preparation
    Certified steel plates are precisely cut on CNC machines and shaped into lamella components.

  • Riveting and Assembly
    The lamellae are assembled using specialized riveting techniques, ensuring maximum structural integrity.

  • Heat Treatment
    Components undergo normalizing and tempering to enhance mechanical strength and durability.

  • Surface Protection
    Electrostatic painting or galvanizing is applied to protect the hooks against corrosion in demanding environments.

  • Quality Control
    All hooks are subjected to load testing, ultrasonic inspections, and certification procedures before delivery.

Why Choose ERMAS Engineering?

ERMAS is not just a manufacturer — we are a full-scope engineering partner.
From machining and welding to heat treatment and inspection, every stage of the lamellar hook production process is carried out in-house with maximum precision.
We provide tailor-made lifting solutions to match your project requirements, offering flexibility in design and production.

Applications

  • Foundry crane systems

  • Ladle handling and molten metal transport

  • Heavy-duty overhead cranes

  • High-temperature industrial lifting operations

Certified Safety for Heavy Loads

At ERMAS Engineering, we offer certified lamellar hook manufacturing in full compliance with DIN 15407. Our hooks are engineered for extreme loads, high temperatures, and critical lifting operations.

Contact us today for project-specific solutions and detailed technical information.