Success Case: Hubei Heavy Equipment Supports Daikin Heavy Industries in Offshore Wind Power Equipment Localization

Strong Alliance to Build the "Chinese Core" of Offshore Wind Power

As a global leader in wind power equipment manufacturing, Daikin Heavy Industries imposes extremely strict requirements on equipment scale, precision and stability. Leveraging its profound technical expertise, Hubei Heavy Equipment supplied an extra-heavy plate bending forming system (Model: EZ2XW11SY-YT-260X4200mm), fully empowering the production of offshore wind power "major national key equipment".

Facing Challenges: The "Hardcore" Demand for 10MW+ Class Flanges

• Large specifications: Diameter ranges from 6 to 16 meters, with thickness far exceeding conventional standards;

• High strength: Mostly made of high-strength alloy steels such as 60CrMnMo, which are highly difficult to cold-bend form;

• Strict precision: Flange roundness and straight edge length directly affect tower welding quality and service life.

Traditional plate bending equipment suffers from difficulties in pre-bending, excessively long straight edges and low efficiency, relying heavily on imports.

Solution: Full-Hydraulic Numerically Controlled Three-Roll Plate Bending Forming System

1. Super Strong Specifications

• Maximum plate bending thickness of 260mm and upper roll pressing force of 5200 tons, enabling one-time cold-bend forming of high-strength steel plates;

• Work rolls made of 60CrMnMo, featuring wear and fatigue resistance for harsh working conditions.

2. Variable Center Distance Technology

• Stepless adjustment of lower roll center distance (1350mm-2350mm);

• Small center distance for small-diameter thin-walled cylinders; large center distance for enhanced thick-plate rounding capacity, achieving multi-purpose operation with one machine.

3. One-Pass Forming Process

4. Precise Straight Edge Control

• Upper roll with four-drive confluence transmission, delivering a maximum torque of 4,050,000 Nm;

• Hydraulic instant braking system for precise plate end positioning, minimizing residual straight edges.

5. Improved Support System

Customer Value

• 30%+ production capacity increase: One-pass forming reduces auxiliary time;

• Quality assurance: High-precision control lowers rejection rates and ensures accurate weld butt joints;

• Cost savings: Significant procurement cost advantages and 30% reduction in foundation construction costs.

Industry Significance: Promoting Autonomization of the Entire Offshore Wind Power Equipment Industry Chain

• Breaking the monopoly: Localization of 10MW-class wind power flange forming equipment, ending import dependence;

• Ensuring safety: Independent control of core technologies enhances industrial chain resilience;

• Supporting dual carbon goals: Providing core equipment for the large-scale development of offshore wind power.