WOPUSAI 20kVA Water‑Cooled Single‑Cylinder Diesel Engine

WOPUSAI 20kVA water‑cooled single‑cylinder diesel engine WPS-QC-16.3, rated continuous power 16.3kW (20kVA) @1500r/min, specially designed for 50Hz generator set matching. It adopts vertical single‑cylinder four‑stroke water‑cooled direct‑injection structure, low fuel consumption, stable continuous running performance, electric starting configuration. Widely applied for assembling open‑type / silent‑type 20kVA diesel generator sets, also supports water pump and agricultural power equipment.

Product Overview

WOPUSAI WPS-QC-16.3 single‑cylinder water‑cooled diesel engine, professional genset‑dedicated power unit. Rated power 16.3kW(20kVA) at 1500rpm, perfectly matched for 50Hz generator sets. Water‑cooled cooling system ensures stable temperature under long‑time full‑load operation. Direct injection combustion realizes excellent fuel economy. Equipped with electric starter for easy starting. Compact outline, mature mechanical structure, convenient daily maintenance, ideal for standby power, farm and construction site power supply.

‑ Model: WPS-QC-16.3

‑ Rated Power: 16.3kW (20kVA)

‑ Rated Speed: 1500rpm

‑ Engine Type: Single‑cylinder, vertical, 4‑stroke, water‑cooled, direct injection 

‑ Bore × Stroke: 125×120 mm

‑ Starting Mode: Electric start

‑ Fuel: 0# Diesel oil 

‑ Application: 20kVA diesel generator set, water pump unit, agricultural machinery

Product Showcase

WOPUSAI WPS-QC-16.3 20kVA single‑cylinder water‑cooled diesel engine adopts heavy‑duty cast‑iron cylinder block and cylinder head. Water‑cooled circulation system effectively controls working temperature during long‑duration operation. Optimized direct‑injection combustion chamber keeps fuel consumption low. Standard electric starting motor for quick startup. Every unit passes bench running‑in and full‑load performance test before delivery. Standard SAE mounting interface, easy to couple with brushless alternators to complete 20kVA generator assembly.

Key Specifications

Core Advantages

1. Genset‑Dedicated Continuous Power Performance 16.3kW(20kVA) continuous output at 1500rpm, specially calibrated for 50Hz generator sets, stable performance under long‑time non‑stop load operation.
2. Water‑Cooled Stable Temperature Control Liquid cooling circulation system avoids overheating risk for long‑hour running, much better heat dissipation than air‑cooled engines, suitable for heavy‑duty continuous working conditions.
3. Low Fuel Consumption Direct‑Injection System Optimized direct‑injection combustion chamber, fuel consumption ≤246.2g/kW·h, reduces comprehensive operating cost.
4. Robust Cast‑Iron Mechanical Structure High‑strength cast‑iron block & head, anti‑wear internal components, strong shock resistance, long service life for frequent start‑stop scenarios.
5. Convenient Electric Start Factory‑fitted electric starting motor, easy one‑key start, no manual recoil pulling required, suitable for various site environments.
6. High Compatibility & Easy Assembly Standard installation dimension, perfectly match 20kVA alternators. Can be supplied as bare engine or complete generator set solution. Spare parts are widely available for low‑cost maintenance.

🎯 Application Scenarios

‑ 20kVA silent / open‑frame generator for home, shop and small factory emergency backup power ‑ Farm irrigation and drainage water pump power source ‑ Rural and remote area independent power supply ‑ Small construction site temporary power equipment ‑ Generator rental business, standby power projects

⚙️ Optional & Customization

‑ Matching radiator assembly ‑ Custom exhaust pipe & industrial silencer ‑ External air filter assembly ‑ Bare engine supply or WOPUSAI one‑stop complete 20kVA genset solution

Custom Workflow: Requirement Confirmation → Technical Proposal & Quotation → Production → Bench Test → Delivery.

📦 Packaging Standards

Export plywood case packaging: ‑ Internal foam shock‑absorbing protection. ‑ Comply with ISPM‑15 export requirement for sea & land transportation. ‑ Complete factory test report and related documents for customs clearance.

🚛 Shipping & Delivery

‑ Full cargo insurance, whole‑process logistics tracking. ‑ Strict fixing to avoid vibration damage in transit. ‑ Full set of customs‑declaration documents for cross‑border trade. ‑ Standard production lead‑time: 7‑15 working days.

🏢 Brand Introduction

WOPUSAI, located in Foshan, Guangdong, is a comprehensive manufacturer integrating R&D, production and sales of diesel generator complete units, alternators and supporting power engines. WOPUSAI product lineup covers small single‑cylinder air‑cooled & water‑cooled diesel engines to large industrial multi‑cylinder water‑cooled engines, matched with self‑produced brush‑type and brushless alternators. Product range includes portable open‑frame generators, silent canopy generators and large‑size container‑type power stations. All products pass strict bench test and load inspection before shipment. We provide one‑stop supporting solutions including control panels, mufflers, canopy housing and spare‑parts supply, delivering reliable products and professional after‑sales technical support for global partners.