125kVA Silent Trailer Diesel Generator for Outdoor Events & Temporary Commercial Power

Product Overview

WOPUSAI 125kVA silent trailer diesel generator set adopts heavy-duty four-wheel towable chassis matched with fully enclosed silent rainproof cabin, specially built for medium-power outdoor mobile scenarios with noise control requirements. The whole unit integrates traction mechanism, dual-stage damping system and sound-insulation weatherproof enclosure, supporting direct outdoor operation without additional shelter. It can be quickly towed to large construction sites, municipal emergency rescue areas, industrial temporary working zones and large-scale event sites, delivering stable low-noise power output continuously under complex field conditions such as rain, dust and uneven roads. It is widely used in engineering construction, emergency power support, large outdoor activities and industrial power rental industries.

• Power: 125kVA
• Certifications: CE, ISO, MA, CNAS
• Typical Applications: Large construction sites, municipal emergency rescue, large outdoor events, industrial rental, field mining operations

Product Showcase

This 125kVA silent trailer genset is equipped with a fully sealed integrated silent cabin. The enclosure adopts full penetration welding process with silent sealing structure, with optimized top gutter and embedded waterproof sealing strips around door frames, effectively blocking rainwater infiltration and dust intrusion while suppressing sound leakage. The heavy-duty four-wheel trailer chassis uses reinforced longitudinal load-bearing beam frame with balanced load distribution, adapting to rugged construction roads and long-distance highway transportation. It is fitted with standard traction connector, manual lifting support legs and heavy-duty mechanical braking system for stable parking and continuous operation. Large maintenance access doors are arranged on both sides of the cabin, facilitating daily inspection and component replacement without entering the cabin. Rainproof sealed control panel and output sockets are reserved on the side, ensuring safe operation in rainy days. The inner cavity is fully lined with multi-layer dense sound-absorbing materials, and a dual-stage vibration isolation system is installed between the unit and the chassis to reduce vibration noise during transportation and operation.

Key Specifications

Silent & Mobile Technology: Built for Outdoor Low-noise Mobility

WOPUSAI silent trailer genset adopts professional medium-power mobile silent technology, optimized for 125kVA outdoor frequent transfer and continuous operation scenarios.

1. Fully Sealed Silent Rainproof Cabin Structure

The silent enclosure adopts full welded waterproof structure with multi-layer acoustic design. The top inclined gutter guides rainwater to discharge quickly without accumulation. The door frames are embedded with high-elastic waterproof sound-insulating rubber strips to block rain, dust and sound leakage from gaps. The air inlet and outlet adopt silencing baffle design, reducing airflow noise while preventing rain splash into the cabin and maintaining smooth ventilation and heat dissipation.

2. Heavy-load Reinforced Four-wheel Chassis

The reinforced chassis adopts integral welded load-bearing longitudinal beam, equipped with four heavy-duty rubber tires and widened axle design. The balanced load axle system adapts to various unpaved roads and long-distance highway transportation. Standard traction interface matches common towing vehicles, realizing fast transfer between large work sites.

3. Dual-stage Damping & Vibration Isolation System

Multi-group heavy-duty shock absorbers are installed between the cabin and the trailer frame to filter road vibration during towing. A second layer of vibration isolators is arranged between the generator unit and the cabin base, reducing operation resonance and mechanical noise transmission. It protects internal components from vibration damage during long-distance transportation and maintains stable low-noise operation on uneven construction sites.

4. Weather-resistant Anti-corrosion Silent Finish

The whole cabin and chassis are treated with anti-rust primer and weather-resistant top coating, resisting corrosion from rain, mud and outdoor ultraviolet radiation. The chassis bottom is sprayed with anti-gravel protective layer, adapting to muddy and gravel road conditions for long service life.

🎯 Application Scenarios

• Large Construction Sites: Mobile low-noise power supply for medium and large construction and road engineering projects
• Municipal Emergency Rescue: Rapid deployment silent emergency power for flood, earthquake and field rescue operations
• Large Outdoor Events: Stable quiet power for large-scale exhibitions, sports events and outdoor performances
• Industrial Temporary Power: Mobile backup power for industrial plants, mining areas and field working sites
• Power Rental Business: Medium-power silent rental units for medium and long-term engineering projects

🌟Core Product Features

• Medium-power Silent Output: Multi-layer acoustic structure matched with vibration isolation design, effectively reducing operating noise and meeting environmental noise control standards of urban and industrial areas.
• Heavy-duty Four-wheel Chassis: Reinforced load-bearing frame with heavy-duty tires, adapting to various road conditions from highways to field construction sites.
• Dual-stage Stable Design: Chassis walking damping plus unit vibration isolation, ensuring stable equipment and low noise during transportation and operation.
• All-weather Adaptability: Fully sealed waterproof cabin with anti-corrosion coating, maintaining stable power supply in rainy, dusty and harsh outdoor environments.
• Convenient Outdoor Maintenance: Double-side large maintenance doors with waterproof design, easy for routine inspection, troubleshooting and component replacement in field environment.

🛠️ Customization Services

Wopusai Mechanical and Electrical provides professional silent trailer genset customization solutions:

• Structure Customization: Upgrade braking system, add hydraulic lifting support legs, expand chassis load capacity, adjust cabin size.
• Configuration Customization: Equip ATS automatic transfer switch, expand fuel tank capacity, add external output sockets, install remote monitoring module.
• Detail Customization: Custom cabin color, add warning indicator lights, brand logo spraying, adjust control panel position.

Customization Process: Demand Communication → Quotation → Production → Commissioning → Delivery. Professional team tracks the whole process to ensure customized quality.

📦 Packaging Standards

The whole genset is fixed on the trailer chassis with reinforced binding. The silent cabin and key components are wrapped with waterproof and scratch-proof protective film. The tires, traction parts and exposed structural parts are protected separately to avoid collision damage during long-distance transportation.

🚛 Loading and Shipping Guarantee

We cooperate with professional logistics providers to support whole-vehicle land and sea transportation, with full cargo insurance and real-time tracking. Complete customs declaration documents and export supporting documents are provided. Conventional trailer units can be delivered within 15–30 working days.

🏢 Wopusai Brand Brief Introduction

Founded in 2012 in Foshan, Wopusai Mechanical and Electrical Co., Ltd. has more than 20 years of professional experience in power equipment manufacturing. Our product portfolio covers 1kVA‑2000kVA, including silent type, trailer type and container type gensets, with CE, ISO, MA, CNAS authoritative certifications.

We focus on R&D and manufacturing of outdoor mobile silent power equipment. Our medium-power silent trailer series features reliable all-weather performance, flexible mobility and stable low-noise output. Each unit undergoes strict road vibration test and noise inspection before delivery. We provide one-stop mobile power solutions, 7×24-hour after-sales support and global sales service system.