Kohler 120kVA Open Frame Trailer Generator for Large Infrastructure & Tunnel Projects

Product Overview

WOPUSAI 120kVA open-frame trailer diesel generator set is equipped with original Kohler power core, matched with dual-axle four-wheel heavy-duty open frame chassis, specially built for outdoor mobile power scenarios with high reliability requirements. The unit integrates heavy traction assembly, multi-stage damping base and anti-rust open rack, featuring stable power output and strong environmental adaptability, and can be put into operation directly outdoors without additional installation. It can be towed to large construction sites, industrial standby stations, municipal key facilities and high-end rental projects, delivering continuous stable power in complex field environments such as heavy dust, gravel roads and uneven construction sites. Widely used in high-end engineering rental, industrial backup, municipal emergency rescue and large-scale event power supply scenarios.

• Power: 120kVA
• Certifications: CE, ISO, MA, CNAS
• Typical Applications: High-end engineering rental, industrial backup, municipal key facilities, large outdoor events, data center standby

Product Showcase

This 120kVA four-wheel open-frame genset carries an original Kohler power unit with integral welded heavy-duty steel open frame. The frame is made of thickened carbon steel channel steel through full penetration welding, with high load-bearing strength, and the surface is treated with overall rust removal and rust-proof primer to resist outdoor rust and dust erosion. The fully open layout eliminates the heat accumulation limitation of enclosed cabins, with the Kohler power unit fully exposed, making daily inspection, fault diagnosis and component replacement more direct and efficient without cabinet disassembly. The dual-axle four-wheel trailer chassis adopts thickened integral load-bearing beam frame with balanced axle load design, adapting to rough construction roads, gravel surfaces and long-distance highway transportation. It is fitted with heavy-duty traction coupling, multi-point manual support legs and enhanced mechanical braking system to ensure stable stationary operation. The control panel and output terminals are centrally arranged on the side of the frame with basic splash protection for convenient field operation. The unit base is equipped with multi-point heavy-duty vibration damping devices to reduce vibration transmission during towing and continuous operation.

Key Specifications

Open Frame & Mobile Technology: Built for High-reliability Outdoor Mobile Power

WOPUSAI four-wheel open-frame trailer genset adopts Kohler-matched open mobile power technology, optimized for 120kVA frequent relocation and long continuous operation scenarios.

1. Kohler-matched Open Frame Heat Dissipation Structure

The open rack adopts fully welded channel steel structure, with layout optimized for the operating thermal characteristics of Kohler power units. It relies on natural convection for efficient heat dissipation, eliminating heat retention of enclosed cabins and adapting to long-hour continuous operation in high-temperature field environments. The open layout allows full visibility of all components, making daily inspection and fault troubleshooting more efficient without cabinet dismantling.

2. Dual-axle Four-wheel Heavy Load Chassis

The chassis adopts dual-axle four-wheel layout with balanced load distribution, equipped with heavy-duty off-road tires and widened axle design. The structure steadily bears the full weight of the unit and adapts to gravel, muddy construction roads and long-distance highway hauling. Standard heavy-duty traction connector matches various towing vehicles, supporting fast relocation between large working zones.

3. Multi-stage Damping & Vibration Isolation System

Multiple sets of heavy-duty shock absorbers are installed between the generator unit and trailer frame, filtering road vibration during towing and reducing operational resonance. The damping points are optimized according to the vibration characteristics of Kohler power units, protecting internal precision components from vibration damage and maintaining stable operation on uneven pavement and construction sites.

4. Overall Rust-proof Protection Treatment

The entire frame and chassis are subject to rust removal treatment and then coated with rust-proof primer, resisting corrosion caused by rain, mud, industrial dust and outdoor ultraviolet radiation. The chassis bottom is sprayed with anti-gravel protective layer, adapting to muddy and gravel road conditions for extended service life.

🎯 Application Scenarios

• High-end Engineering Rental: Premium mobile power for medium and long-term construction projects with high standards
• Industrial Critical Backup: Emergency standby mobile power for factories and key equipment in industrial parks
• Municipal Key Facilities: Emergency power supply for municipal flood control, disaster rescue and core public facilities
• Large-scale Events: Stable mobile power for large outdoor sports events, exhibitions and performances
• Data Center Standby: Emergency backup mobile power for data centers and communication base stations

🌟Core Product Features

• Original Kohler Power Core: Equipped with genuine Kohler power unit, featuring stable operation, strong overload capacity and excellent fuel economy, meeting high-reliability power supply demands.
• Open-frame Efficient Heat Dissipation: Fully open frame structure with natural convection cooling, no heat build-up, suitable for long-time continuous heavy-load operation in field environments.
• Four-wheel Heavy-duty Passability: Reinforced load-bearing frame with heavy-duty off-road tires, adapting to various complex road conditions from highways to construction sites.
• Convenient Open Maintenance: Open layout with full component visibility, more efficient daily inspection and fault handling, no cabinet disassembly required.
• Sturdy & Durable Rust Protection: Thickened steel welded frame + overall rust-proof primer treatment, strong load-bearing capacity, wind and rain resistant, long service life in outdoor environments.

🛠️ Customization Services

Wopusai Mechanical and Electrical provides professional four-wheel open-frame Kohler genset customization solutions:

• Structure Customization: Upgrade braking system, switch to hydraulic support legs, add optional rain canopy, adjust frame load capacity.
• Configuration Customization: Equip ATS automatic transfer switch, expand integrated fuel tank, add multiple external output sockets, install remote monitoring module.
• Detail Customization: Custom frame color, add warning indicator lights, brand logo spraying, adjust control panel layout.

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

📦 Packaging Standards

The whole genset is firmly fixed on the trailer chassis with heavy-duty binding straps. Key precision components are wrapped with waterproof and scratch-proof protective film. Tires, traction assembly and exposed structural parts are separately protected to avoid collision damage during long-distance sea and land 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.

🏢 Kohler Brand Brief Introduction

Kohler was founded in 1873 in the United States, as a world-renowned brand focusing on power systems and engine manufacturing. It is committed to the R&D, production and sales of high-performance diesel engines, generator sets and supporting power equipment. With strict quality control, mature industrial technology and excellent operational reliability, Kohler power products are widely used in industrial manufacturing, commercial buildings, data centers, municipal engineering and high-end engineering rental fields worldwide. Relying on a sound global after-sales service network, Kohler provides long-term stable operation guarantee and professional technical support for all kinds of power equipment.