Steel Formwork for Wind Turbine Towers

Scope of Application

1. Onshore wind power projects: Suitable for circular and octagonal concrete foundations of various wind turbines, prefabrication of concrete hybrid towers in low-wind-speed zones, applicable to mountainous, plain and Gobi wind farms.
2. Offshore and tidal flat wind power: Used for wind turbine bearing platforms in coastal salt fog environments and offshore concrete tower components; custom heavy anti-corrosion formwork is available upon request.
3. Prefabricated component factories: Mass production of prefabricated arc segments for assembled hybrid towers and standard sectional concrete tower segments.
4. Wind farm expansion & renovation projects: Matching formwork for newly added wind turbine foundations and heightening concrete towers in upgraded old wind farms.
5. Wind-solar energy storage integrated projects: Casting wind turbine bases and auxiliary concrete structures for booster stations.

Structural & Technical Advantages

1. Standard Structural Composition

1. Forming face panels: Made of thickened national standard steel plates with integrated CNC bent arcs. Smooth inner walls enable easy demoulding without concrete adhesion.
2. Dual-layer reinforcement system: Backsides are reinforced by circumferential channel steel and vertical flat steel ribs. Double reinforcement is applied to high-stress areas such as arc corners and bottoms for strong anti-bulging performance.
3. Modular splicing structure: Standard separate arc segments fitted with flange connecting lugs on sides, matched with sealing rubber strips, tension hoops and fastening bolts. Tight joints eliminate slurry leakage.
4. Precision pre-drilled holes: Pre-reserved anchor bolt positioning holes, vibrator mounting seats and lifting lugs are all factory-drilled to avoid secondary on-site processing.
5. Multi-layer anti-corrosion treatment: Blasted for rust removal and coated with epoxy anti-rust paint; high-end versions adopt hot-dip galvanization to adapt to harsh construction environments including coastal areas and high-wind sand regions.

2. Core Technical Advantages

1. Ultra-high forming precision: CNC machining controls dimensional tolerance within ±2mm, ensuring qualified verticality of cast foundations and meeting high-precision installation standards for wind turbines.
2. High bearing capacity with no deformation: Optimized through professional mechanical structural calculation to resist lateral pressure from mass high-grade concrete, preventing mould bulging or displacement during pouring.
3. Integral arc forming without step offsets: Entire panels are bent as a single piece without on-site arc splicing gaps, delivering smooth concrete tower surfaces with fair-faced finish and no repair work needed.
4. Sealed anti-leakage design: Rubber sealing strips installed at flange joints solve common construction defects such as slurry leakage, honeycombing and pitting on large-area wind power foundations.
5. Wide working condition adaptability: Special models for foundations and prefabricated towers are available. Customizable inner diameter, height and wall thickness to fit circular and polygonal wind turbine bases.
6. Lightweight disassembly & transportation: Split into modular segments with controllable single-piece weight, transportable by cranes or manual labour, ideal for narrow foundation pits in mountainous areas.

Comprehensive Functional Features

1. Integral shaping pouring: Forms complete annular wind turbine foundations or arc tower segments in one pour, simultaneously forming base slabs and side walls to eliminate secondary shaping and plastering.
2. High-precision positioning: Standard pre-reserved anchor bolt holes ensure accurate placement of wind turbine foundation bolts and error-free unit hoisting and installation.
3. Extensible long-distance assembly: Standard arc segments can be freely combined to accommodate extra-large wind power foundations and multi-section tower assembly production.
4. Integrated embedded part matching: Water-stop steel plates, temperature measuring tubes, ladder embedded parts can be fixed synchronously without shifting during pouring, simplifying waterproofing and embedding procedures.
5. Reusable cyclic turnover: Wear-resistant and impact-resistant steel structure allows 30–50 turnover cycles, movable and reusable across different wind farms and construction lots to cut overall procurement costs.
6. Zero on-site processing: All bending, welding, drilling and anti-corrosion work are finished in the factory. On-site operations only involve assembly and fastening, eliminating hot cutting and welding for improved construction safety.
7. Suitable for mass prefabrication: Moulds dedicated to precast factories can be equipped with attached vibrators for standardized mass production of concrete tower segments to boost output capacity.

Product Overview & Comprehensive Advantages

Product Overview

Comprehensive Product Advantages

1. Superior quality: Thickened high-strength steel plus dual-layer reinforcement deliver standard arc shapes and precise dimensions, drastically reducing rework and rectification costs for wind power foundations and enabling one-time project acceptance.
2. Improved construction efficiency: Fast modular assembly speeds up form erection and stripping by 40%, cuts manual labour for foundation pit construction and shortens overall wind farm construction schedules.
3. Cost-effective economics: Far higher turnover cycles than wooden formwork and thin simple steel formwork. Long-term reuse across multiple projects amortizes purchasing costs, with no extra expenditure on concrete repair materials and labour.
4. Robust durability: Multi-layer anti-corrosion coatings provide resistance against wind sand, salt fog and low temperatures, resisting rust and deformation under long-term outdoor use in complex mountain and coastal conditions.
5. Flexible customization: Compatible with wind turbines of all power ratings with unlimited foundation sizes. Custom special-shaped and extra-large-diameter wind power formwork can be produced per design institute drawings to fit all new-type concrete hybrid tower projects.
6. Eco-friendly & safe: Steel is 100% recyclable with no wood waste generated. No on-site cutting or hot welding reduces safety hazards such as foundation pit collapse and fire risks, complying with green construction requirements for new energy industries.