Large-Scale Transformer Tank Spray Paint Booth Project

Fully Enclosed Airless Spray Booth for Extra-Large Transformer Tanks-Dated Sep 21th,2026

A leading industrial contracting group in the Middle East approached us to design and manufacture a fully enclosed, high-performance spray paint booth for coating extra-large transformer tanks. The project required handling workpieces up to 9.8 meters in length with internal and external surface coating, demanding a robust, explosion-proof solution tailored to the client's specific facility.

The Challenge

The client presented several technical challenges that required innovative engineering solutions:

· Ultra-large workpiece dimensions (9.8m length) requiring a spacious booth interior for safe maneuvering and coating access.

· Heavy load capacity (35-ton workpieces) necessitating reinforced floor design and heavy-duty handling systems.

· Both internal and external surfaces require coating, demanding flexible access solutions and optimal airflow management.

· Oil-based paint application requiring full explosion-proof compliance (ATEX/IECEx equivalent) for all electrical components.

· Regional power specification (380V/60Hz) differing from standard manufacturing practices.

CoatTech's Solution

We engineered a comprehensive, fully integrated spray paint booth system addressing every technical requirement while exceeding safety and performance expectations.

Booth Configuration

Key Design Features

· Optimized booth dimensions (14m x 7.5m x 6m) providing ample working space while fitting comfortably within the available 18x12x10m site.

· Heavy-duty electric track trolley system designed for 35+ ton loads, ensuring smooth and precise workpiece positioning.

· Full explosion-proof design including ATEX-compliant exhaust fans, LED lighting fixtures, and electrical interlocks.

· Advanced air supply and exhaust system with multi-stage filtration for optimal paint atomization and worker safety.

· Reinforced concrete foundation design with high load-bearing capacity to safely support heavy workpieces and track system.

· Internal coating access solutions including removable platforms and adjustable nozzle positioning.

Deliverables & Documentation

The project scope included comprehensive documentation and engineering deliverables:

· Preliminary General Arrangement (GA) drawings showing full booth layout and integration with existing facility.

· Complete air supply and exhaust system design with filtration specifications and airflow calculations.

· Civil foundation requirements including load calculations, soil bearing capacity recommendations, and reinforcement details.

· Detailed budget quotation with itemized equipment breakdown for client approval and procurement planning.

Project Outcome

The proposed solution successfully addresses all client requirements within budget constraints. The fully enclosed airless spray booth design ensures safe, efficient, and high-quality coating of ultra-large transformer tanks while maintaining full compliance with regional safety and electrical standards. The modular design approach also allows for future expansion or modification as the client's production needs evolve.

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