50Hz 32kW 40kVA SDEC Engine 4ZT3.2-G11 Diesel Generator set

50Hz 32kW 40kVA SDEC Engine 4ZT3.2-G11 Diesel Generator set
1. Product Overview
The 50Hz 32kW 40kVA SDEC Engine 4ZT3.2-G11 Diesel Generator set is a robust and reliable medium-power generating unit tailored for stable prime power operation and emergency standby power supply. Powered by authentic industrial-grade SDEC 4ZT3.2-G11 four-stroke water-cooled diesel engine, this 40kVA diesel generator delivers a rated prime power of 32kW and a maximum standby emergency power of 35.2kW/44kVA, perfectly matching medium-load power demands for commercial facilities, light industrial workshops and outdoor engineering projects. With a calibrated full-load fuel consumption of 10.6L/h, this SDEC diesel generator balances stable power output and operational economy, serving as a mainstream cost-effective power solution in the medium-power genset market.
Equipped with a high-performance brushless self-excited alternator, the unit adopts premium H-grade insulation material and standard IP23 dustproof and splash-proof protection grade, adapting to complex working environments including open-air construction sites, humid suburban areas and dusty factory workshops. Designed with standard 50Hz industrial frequency and 400V three-phase four-wire output, this 32kW prime power diesel generator fully complies with global civil and industrial power supply standards. The matched SDEC 4ZT3.2-G11 generator-dedicated engine features optimized direct injection combustion technology and wet liner cylinder structure, effectively avoiding common issues of traditional medium-power gensets such as unstable voltage frequency, insufficient continuous load capacity and high failure rate. It is widely used for off-grid continuous power generation, municipal power failure backup and industrial peak load compensation across various industries.
Every finished 4ZT3.2-G11 SDEC generator set undergoes strict factory full-load aging testing, voltage and frequency stability calibration, insulation resistance detection and fuel consumption verification before delivery. With standardized industrial assembly process, reinforced mechanical structure and excellent continuous operation performance, this industrial diesel genset has become a hot-selling model for medium-load power guarantee projects worldwide, favored by engineering contractors, factory owners and property management enterprises.
2.Technical Parameter
Parameter Category | Detailed Technical Specification |
Generator Set General Parameters | |
Rated Frequency | 50Hz |
Prime Power (kW/kVA) | 32kW / 40kVA |
Standby Power (kW/kVA) | 35.2kW / 44kVA |
Rated Voltage | 400V/230V, Three-phase Four-wire |
Power Factor | 0.8 Lagging |
Rated Speed | 1500RPM |
Full Load Fuel Consumption | 10.6L/H @ 100% Full Load |
Start Mode | 24V DC Electric Start |
Diesel Engine Parameters | |
Engine Brand | SDEC (Shanghai Diesel Engine) |
Engine Model | 4ZT3.2-G11 |
Engine Type | 4-Cylinder, In-line, 4-Stroke, Water-Cooled |
Total Displacement | 3.2L |
Cylinder Structure | Wet Liner Design |
Aspiration Mode | Naturally Aspirated |
Governor Type | Mechanical Governor |
Combustion System | Precision Direct Fuel Injection |
Emission Standard | Euro III Compliant |
Alternator Parameters | |
Excitation Type | Brushless, Self-excited |
Insulation Grade | H Grade |
Protection Grade | IP23 |
Voltage Regulation System | Automatic AVR Voltage Regulation |
Winding Material | 100% Pure Copper Winding |
Operational Performance Parameters | |
Voltage Stability Rate | ≤±1% |
Frequency Stability Rate | ≤±0.5% |
Working Ambient Temperature | -15℃ ~ +45℃ |
Optional Structure | Open Type / Silent Type / Mobile Trailer Type |
3. Core Product Features
This 50Hz 32kW 40kVA SDEC 4ZT3.2-G11 Diesel Generator set adopts SDEC Z-T series industrial-grade engine technology and high-efficiency brushless alternator matching design, upgrading the load capacity and operational stability of conventional medium-power gensets. With reliable power output, strong environmental adaptability and low maintenance cost, it solves the power supply instability problems of medium-load industrial and commercial scenarios, becoming a practical and durable medium-power diesel generation solution:
3.1 Industrial-grade 4ZT3.2-G11 Engine & Reliable Power Output
Powered by the dedicated SDEC 4ZT3.2-G11 generator engine independently developed for medium-power power generation working conditions, the unit adopts in-line four-cylinder four-stroke structure and precision direct injection combustion system. The optimized fuel supply and air intake matching design ensures sufficient power reserve and stable power release under long-term medium-load operation. With a calibrated full-load fuel consumption of 10.6L/h, it balances power performance and operational economy, avoiding excessive fuel waste caused by power mismatch of ordinary general-purpose engines. The wet liner cylinder structure enhances heat dissipation efficiency and continuous operation durability, adapting to long-hour uninterrupted power generation demands.
3.2 Brushless Self-excited Alternator & Maintenance-free Operation
This 40kVA diesel generator is equipped with a mature brushless self-excited alternator, completely abandoning the traditional brushed excitation structure. It eliminates carbon brush wear, friction spark interference and regular replacement maintenance work, greatly reducing daily operation failure rate and after-sales maintenance costs. The integral pure copper winding features low resistance, low heat generation and high conductivity, ensuring stable current transmission and long service life. The maintenance-free alternator design perfectly adapts to long-term unattended hot standby and continuous power generation scenarios, improving overall operational efficiency.
3.3 H-grade Super Insulation & IP23 Harsh Environment Resistance
The alternator adopts high-standard H-grade high-temperature resistant insulation materials, which has excellent anti-aging, heat-resistance and electrical breakdown resistance capabilities. It can maintain stable insulation performance under long-term full-load and high-temperature working conditions, effectively preventing insulation aging and equipment burnout. With standard IP23 professional protection grade, the whole machine can effectively block splashing rainwater, floating dust and external sundries, avoiding internal circuit short circuit and component damage. This reliable protection structure enables the genset to operate stably in open-air construction sites, factory workshops, humid suburban areas and other complex working environments.
3.4 Dual Power Mode & High-precision Power Quality
The genset supports dual power output modes to meet diverse medium-load power demands. The 32kW rated prime power supports 24-hour uninterrupted continuous power supply for conventional stable industrial and commercial loads, while the 35.2kW/44kVA emergency standby power can cope with instantaneous peak load surge and sudden municipal power outage emergencies. Built-in high-precision AVR automatic voltage regulation system precisely controls voltage fluctuation within ±1% and frequency deviation within ±0.5%, providing clean and stable power for precision production equipment, commercial electrical systems and monitoring devices without voltage surge or power jitter damage.
3.5 Compact Integrated Structure & Strong Adaptability
The whole machine adopts compact integrated layout design, with reasonable structural arrangement, small footprint and convenient installation and mobile transfer. The optimized engine shock absorption structure and integral silencer system effectively reduce operating vibration and running noise, complying with industrial and civil environmental protection noise standards. The unit supports open type, silent type and mobile trailer type customization, which can meet fixed indoor placement, outdoor open-air fixed operation and temporary mobile construction power supply demands, with extremely wide application flexibility.
4. Core Product Uses
As a high-performance medium-power diesel generation equipment, the 50Hz 32kW 40kVA SDEC 4ZT3.2-G11 Diesel Generator set mainly undertakes continuous medium-load prime power supply, emergency standby power backup and grid peak load regulation tasks, solving power shortage and sudden power outage risks in various industrial, commercial and engineering medium-load scenarios:
Long-term Continuous Prime Power Supply: This 32kW prime power diesel generator provides stable independent off-grid power generation for remote industrial zones, suburban facilities and field operation stations without municipal grid coverage, ensuring normal operation of medium-load production machinery and daily electrical equipment.
Sudden Power Outage Emergency Backup Power: The 44kVA high standby power can start quickly in response to municipal power failure, providing uninterrupted emergency power support for factory production lines, commercial building equipment, fire-fighting linkage systems and monitoring systems, avoiding production suspension and economic losses caused by sudden power cuts.
Grid Peak Load Compensation: For medium-sized factories and commercial parks with insufficient grid peak power capacity and unstable voltage, this SDEC diesel generator set can assist in power supplementation during peak power consumption periods, balancing grid load pressure and improving regional power supply stability.
Fixed Hot Standby Power Reserve: It serves as standard standby power configuration for medium-sized industrial workshops, commercial buildings and public institutions, maintaining long-term hot standby state to realize rapid response power supply in unexpected power failure emergencies.
Temporary Engineering Power Guarantee: Provides reliable medium-load temporary power support for outdoor infrastructure construction, water conservancy engineering, road renovation and field engineering projects, meeting the power consumption demands of medium-sized construction equipment and on-site living facilities.
5. Wide Application Scenarios
With stable medium-load power output, strong continuous operation ability and wide environmental adaptability, the 50Hz 32kW 40kVA SDEC 4ZT3.2-G11 Diesel Generator set covers industrial, commercial, public facility and engineering fields, being a mainstream cost-effective medium-power generation solution for medium-load power demand:
5.1 Medium-sized Industrial Workshop Power Supply
Widely used in small and medium-sized processing workshops, packaging factories, mechanical processing plants and light industrial production bases. The stable 32kW continuous power output fully meets daily medium-load production power demand, and the emergency standby power effectively copes with grid voltage fluctuation and sudden power failure, ensuring continuous and stable industrial production operation.
5.2 Commercial Building & Park Standby Power
Suitable for medium-sized office buildings, comprehensive commercial parks, logistics parks and community business centers. It acts as core emergency backup power to ensure the normal operation of elevators, central air conditioning, monitoring systems, emergency lighting and fire linkage equipment during municipal power outages, improving commercial operation stability and safety.
5.3 Outdoor Engineering & Field Construction Projects
Ideal for municipal infrastructure construction, water conservancy project maintenance, field exploration and remote temporary construction sites. The IP23 outdoor protection performance adapts to open-air harsh environments such as dust, wind and splash rain, and the optional mobile trailer structure facilitates rapid on-site deployment and transfer, providing stable off-grid medium-load power guarantee for temporary engineering operations.
5.4 Public Facility & Institutional Power Guarantee
Applicable for township comprehensive service centers, regional hospitals, suburban campus clusters and scenic area supporting facilities. The low-noise and stable operation will not interfere with public working and living environments, and the low-maintenance design perfectly adapts to long-term unattended standby operation of public infrastructure.
5.5 Monitoring & Auxiliary Equipment Backup Power
Perfect for regional monitoring stations, medium-sized communication base stations and industrial auxiliary power equipment. The high-precision stable power output effectively protects precision electronic devices and auxiliary production equipment from damage caused by voltage surge and current fluctuation, ensuring 24-hour uninterrupted operation of supporting systems.
6. Frequently Asked Questions (FAQ)
Q1: What is the difference between prime power and standby power of the 4ZT3.2-G11 40kVA diesel generator set?
Prime power (32kW/40kVA) is the rated continuous power that the genset can stably output for 24-hour long-term uninterrupted operation, designed for daily continuous off-grid power generation and regular medium-load operation. Standby power (35.2kW/44kVA) is emergency peak power, only used for short-time power compensation during sudden municipal power outages or instantaneous load surges, and cannot support long-term full-load continuous operation. For daily on-site use, it is recommended to control the operating load within 80% of the prime power to avoid long-term overload operation, which can effectively extend the service life of the SDEC 4ZT3.2-G11 generator set.
Q2: What are the core advantages of the SDEC 4ZT3.2-G11 engine compared with ordinary generator engines?
The SDEC 4ZT3.2-G11 is a professional generator-dedicated Z-T series industrial engine developed by Shanghai Diesel Engine, specially optimized for medium-power continuous power generation working conditions. Compared with ordinary general-purpose engines, it adopts wet liner cylinder structure and precision direct injection combustion system, with stronger heat dissipation capacity, more sufficient power reserve and more stable long-term load resistance. Matched with brushless pure copper alternator, the whole unit has lower operational loss and higher power generation efficiency. Its Euro III emission standard, mature industrial durability and low failure rate make it more suitable for long-term standby and frequent startup medium-load power generation scenarios.
Q3: What daily maintenance is required for the 50Hz 32kW 40kVA SDEC diesel generator set?
Benefiting from the advanced brushless self-excited alternator design and mature SDEC 4ZT3.2-G11 industrial engine structure, this genset has low daily maintenance pressure. Daily routine inspection only needs to check diesel fuel level, cooling water capacity and battery starting voltage to ensure normal standby state. Users need to regularly clean radiator dust and ventilation gaps to keep unobstructed heat dissipation. Replace engine oil, fuel filter and oil filter regularly according to cumulative operating hours. There is no need for frequent carbon brush replacement and mechanical debugging like traditional brushed generators, greatly saving daily operation and maintenance time and costs.

