Cummins 4BTA Series 25kVA-63kVA Open Frame Diesel Generator for Small Business & Home Backup Power

Product Overview

The WOPUSAI Cummins 4BTA series 25kVA‑63kVA diesel generator set adopts genuine Cummins 4BTA series inline 4‑cylinder water‑cooled industrial diesel engine, matched with Foshan Stanford TFW brushless all‑copper synchronous alternator. This medium‑power open‑frame genset delivers stable prime power output for standby and continuous‑operation scenarios. With mature direct‑injection fuel system and optional turbocharged intercooled air intake structure, the unit achieves reliable performance and good fuel‑economy. The compact open‑frame structure reserves abundant modification space, suitable for small‑medium factories, commercial buildings, hospitals, construction sites and residential backup power supply.

Product Showcase

Complete open‑frame genset assembly, Cummins 4BTA series diesel engine unit, TFW brush‑less all‑copper alternator, industrial‑grade control cabinet, complete piping assembly and compact water cooling radiator.

Key Specifications

Core Advantages

1. Genuine Cummins 4BTA Reliable Industrial Powertrain The 4BTA 4‑cylinder engine is a globally proven mature power platform for generator applications. Multiple versions cover natural aspiration, turbocharging and turbo‑intercooled configurations to match 25‑63kVA power range. Sturdy mechanical structure guarantees stable performance under long‑time continuous running. Direct‑injection fuel system brings stable combustion and easy maintenance, with worldwide spare‑parts supply support.
2. Foshan Stanford TFW Brushless All‑Copper Alternator Brushless excitation eliminates carbon‑brush wear‑and‑tear failure points, lowering daily maintenance workload. 100% pure‑copper winding delivers outstanding heat dissipation and anti‑overload capacity. Built‑in AVR automatic voltage regulator stabilizes output voltage effectively, protecting office equipment, medical instruments and production devices. H‑class insulation and IP23 protection grade adapt to construction‑site dusty and humid working conditions.
3. Precise Electronic Speed Control System Electronic governor responds rapidly to load fluctuation, keeping stable rotating speed and output frequency. Optimized fuel injection reduces carbon‑deposit accumulation and extends service intervals. DC24V electric starting ensures reliable startup for different ambient temperature conditions.
4. Compact Base Assembly & Convenient Maintenance Layout Integrated welded base bears unit weight and absorbs vibration effectively. Oil filling ports, filter replacement positions and inspection points are rationally arranged for quick on‑site service. Every genset passes strict full‑load running‑in aging test before factory delivery to verify mechanical and electrical performance.
5. Flexible Customization For Diverse Application Needs Open‑frame layout reserves enough installation space for auxiliary accessories. It can be equipped with silent canopy, ATS automatic transfer cabinet, remote monitoring module and extended fuel tank, meeting various requirements of commercial, industrial and engineering projects.

🎯 Application Scenarios

‑ Small‑medium manufacturing factories, workshop standby power supply

‑ Commercial buildings, shopping malls, office building emergency backup power ‑ Small‑and‑medium hospital departments, clinic power backup 

‑ Construction sites, engineering field temporary power supply

‑ Residential communities, villas, remote area off‑grid power supply

⚙️ Optional & Customization

‑ Silent canopy / sound‑insulated enclosure

‑ ATS automatic transfer switch for auto‑start & mains‑failure auto‑switch

‑ Multi‑protection intelligent control cabinet, remote cloud monitoring module

‑ Large‑capacity extended fuel tank, cold‑region preheating device

📦 Packaging Standards

Export‑grade heavy‑duty iron frame packaging, anti‑rust coating for metal surfaces. Complete operation manual, spare‑parts kit are included inside the package.

🚛 Shipping & Delivery

Support full container and LCL transportation. Available for FOB, CIF and other international trade terms. Production lead‑time subject to order quantity, negotiable delivery schedule for bulk orders.

🏢 Brand Introduction

WOPUSAI Mechanical and Electrical WOPUSAI focuses on R&D, assembly and global supply of industrial diesel generator sets. We maintain long‑term strategic cooperation with Cummins, Shangchai Power, Yuchai and other well‑known engine manufacturers. Our product portfolio ranges from small portable gensets to large‑scale heavy‑duty industrial power equipment. Strict quality inspection runs through every production procedure. We provide worldwide customers with full‑set solutions covering model‑selection guidance, technical consultation and after‑sales support.

Introduction of Cummins Engine Cummins is a world‑renowned internal‑combustion engine manufacturer. The 4BTA series 3.9L engine enjoys global market recognition, featuring compact structure, high reliability and complete global spare‑parts service network. Widely used on generator sets and engineering machinery, it is a preferred power source for numerous medium‑power genset projects worldwide.