I.Core answer
Huaquan’s on-board generator sets are designed to be compact and miniaturized, with significant size differences among units of different power levels. Taking the commonly seen 100-150kW on-board units as an example, the typical size range is as follows:
| vlast | Unit model | length | width | height | Applicable vehicle models |
| 120kW | Diesel vehicle-mounted generator set | 2.4m | 0.87m | 1.47m | Medium-sized trucks, oilfield special vehicles |
| 150kW | Gas/diesel vehicle | 2.5-2.54m | 1.4-1.44m | 1.6m | Large trucks, construction vehicles |
| 100kW | mobile trailer type | 2.0m | 1.3m | 2.0m | Trailer towing (including rainproof shed) |
Huaquan Power reminds you that on-board generator sets are usually installed on the vehicle chassis. In addition to the dimensions of the generator set itself, it is also necessary to reserve maintenance access (0.6-0.8m), heat dissipation and ventilation space, i rad upravljačke ploče space. It is recommended to confirm the vehicle chassis dimensions and modification plan with Huaquan technical personnel when selecting the model.
II.Detailed dimensions of on-board generator sets of various power levels
- 120kW vehicle-mounted generator set (the most compact)
This is one of the smallest on-board units from Huaquan Power, specifically designed for space-constrained scenarios such as oil fields and special vehicles.
| parameter | numerical value |
| Unit model | Huaquan 120kW vehicle-mounted Dizel generatorski set |
| Length × Width × Height | 2.4m × 0.87m × 1.47m |
| engine configuration | Volvo 6-cylinder engine, rated power 151kW |
| Technical Features | Electronically controlled high-pressure common rail system, meeting China III emission standards, and shock absorption system design |
| generator | Huaquan copper brushless motor, equipped with digital AVR, auxiliary winding capable of 3 times the rated current for 20 sekundi |
| Protective treatment | Three-proofing treatment: anti-mildew, anti-corrosion, anti-salt spray |
| base | One-time bending rigid base with oil tank, featuring ultra-long standby time |
Scenariji primjene: oilfield drilling, field exploration, and special vehicle modification. This unit is compact overall and customized for installation on vehicles. It boasts compact size and excellent quality and performance.
- 150kW on-board generator set (mainstream model)
150kW is the main power range for on-board units, and both diesel and gas versions have mature solutions.
Universal size for diesel/gasoline:
| parameter | numerical value |
| Unit model | Huaquan 150kW vehicle-mounted generator set |
| Length × Width × Height | 2.5-2.54m × 1.4-1.44m × 1.6m |
| engine configuration | 6-cylinder engine, DT electronic speed regulation |
| Frequency/Voltage | 50Hz / 380V |
| sustav upravljanja | Four protections (nizak pritisak ulja, high water temperature, preopterećenje, prekostrujni) |
| sustav hlađenja | Extra-large radiator water tank |
Features of 150kW gas-powered vehicle-mounted unit:
- Adopting a V-type 6-cylinder gas engine
- Hebei Xingtai Automobile Manufacturing Factory has ordered 5 units for use in automobiles
- Open-frame design, facilitating vehicle integration and installation
- 100kW mobile trailer-type generator set (compact type)
This unit is a prime example of miniaturized design, ideal for applications requiring trailer towing.
| parameter | numerical value |
| Unit model | Huaquan 100kW mobile trailer-type generator set |
| Length × Width × Height | 2.0m × 1.3m × 2.0m |
| structural characteristics | The entire machine is compact in structure, setting a paradigm for miniaturization |
| mobilnost | It can be towed by a motor vehicle and moves at a high speed of 80km/h |
| Applicable scenarios | Construction site, hitno spašavanje, field work, temporary power supply |
Advantages of Huaquan Power: The 100kW mobile trailer-type generator set adopts a compact design, which allows it to travel at high speeds on the highway without any need to slow down, making it a typical example of a small-sized unit.
- 100kW mobile trailer rainproof shed (including protective structure)
The height of the mobile trailer unit with a rainproof canopy will increase:
| parameter | numerical value |
| Unit model | Huaquan 100kW mobile trailer rainproof shed type |
| Length × Width × Height | 2.5m × 1.5m × 2.3m |
| engine | In-line six-cylinder turbocharged engine with direct fuel injection in the cylinder |
| Fuel tank capacity | 200L large capacity, sufficient for 10 hours of work |
| zaštita | The rainproof shed, after special treatment, is corrosion-resistant and has a long service life |
III. Overview Table of Vehicle-Mounted Unit Dimensions for Different Power Ranges
| vlast | type | Length (m) | Width (m) | Height (m) | Installation recommendations | izvor |
| 120kW | Diesel vehicle | 2.4 | 0.87 | 1.47 | The minimum width requirement for the chassis is ≥0.9m | |
| 150kW | Gasoline/diesel vehicle | 2.5-2.54 | 1.4-1.44 | 1.6 | The chassis width is required to be ≥1.5m | |
| 100kW | mobile trailer type | 2.0 | 1.3 | 2.0 | Including trailer chassis, towable type | |
| 100kW | Trailer + rainproof shed | 2.5 | 1.5 | 2.3 | Including rainproof shed, requiring traction |
IV.Suggestions for on-board installation space planning
- Space required for the unit body
| unit power | Body size (L×W×H) | Minimum bearing area of chassis | Installation method |
| 120kW | 2.4×0.87×1.47m | About 2.1m² | Base bolt fixation |
| 150kW | 2.5×1.4×1.6m | About 3.5m² | Base bolt fixation + vibration reduction |
- Additional space that must be reserved
In addition to the unit itself, the following space must be considered during installation:
| Space type | requirement | explanation |
| maintenance passage | Reserve 0.6-0.8m around the unit | Facilitate daily inspection, filter replacement, and oil/fluid addition |
| Heat dissipation and ventilation | The distance between the radiator and the compartment wall is ≥150mm | Prevent hot air backflow to ensure efficient heat dissipation |
| Upravljačka ploča | Reserve 0.5m in front of the panel | Easy to operate and view instruments |
| exhaust pipe | Reserve according to the actual layout | It needs to be vented outside the vehicle to avoid exhaust gas accumulation |
| storage battery | “According to the selection, make reservations.” | Huaquan comes standard with a Camel-30℃ maintenance-free battery |
- Key points of ventilation and heat dissipation design
Huaquan Power’s special reminder: When installing an on-board generator set, ventilation and heat dissipation are two crucial issues that require utmost attention:
- The air intake and exhaust vents should be arranged reasonably to avoid hot air backflow
- The air inlet can be set in the low-temperature area, and the air outlet can be set in the high-temperature area, allowing air convection to form
- The radiator should be placed as close as possible to the air outlet to prevent the circulation of hot air
- If there is no air duct, the distance between the radiator and the air outlet should be controlled within 150 millimeters
- Reference for selection of trailer chassis
For mobile trailer-type units, the requirements for the trailer chassis of Huaquan Power are as follows:
| parameter | requirement |
| Minimum ground clearance | 220mm |
| Trailer form | Dual-axle eight-wheel type, with steering wheel for steering |
| tire | 2-8 pieces (based on load capacity) |
| Bearing surface size | Approximately 1300×4500mm (including the unit + rainproof shed) |
| load-bearing capacity | ≤6 tons |
| Parking brake | Hand brake, reliable braking on a 15° slope |
V.Selection Suggestions
- Select the unit according to the vehicle model
| Vehicle model/space condition | Recommended crew | explanation |
| Medium-sized truck (width ≤ 2.2m) | 120kW vehicle-mounted (0.87m wide) | Compact size, leaving space on both sides of the chassis |
| Large trucks/construction vehicles (width ≥ 2.5m) | 150kW vehicle-mounted (1.4m wide) | Mainstream choice, ample power |
| No fixed vehicle/need to move | 100kW mobile trailer type | Drag and go, flexible deployment |
| It needs to be rainproof outdoors | 100kW trailer + rainproof shed | For all-weather use, with a height of 2.3m |
- Solutions to address insufficient space
If the chassis space of the vehicle is limited, Huaquan Power can provide the following solutions:
- Kompaktan dizajn: Na primjer, a 120kW unit has a width of only 0.87m
- Open-frame structure: Reduce the space occupied by peripheral structures
- Customized modification: Optimize the layout of the unit according to the chassis size
📌 Summary: Quick Reference for Space Requirements of Huaquan On-board Generator Sets
| vlast | Length × Width × Height | Minimum chassis width requirement | Typical Applications |
| 120kW | 2.4×0.87×1.47m | ≥0.9m | Oilfield special vehicles, medium-sized trucks |
| 150kW | 2.5×1.4×1.6m | ≥1.5m | Large trucks, construction vehicles, and automobile manufacturing plants |
| 100kW mobile trailer | 2.0×1.3×2.0m | traction | Mobile emergency rescue and emergency power supply |
Core advantages of Huaquan Power:
- Compact size: The 120kW unit has a width of only 0.87 metara, making it suitable for vehicular scenarios where space is limited
- Complete power range: mainstream power range of 100-150 kW, with diesel and gas dual fuel options
- Professional design: shock absorption system, three-proofing treatment, oversized radiator, and other specialized configurations for vehicles
- Mobility convenience: The mobile trailer can be towed at a high speed of 80km/h
If you need a customized installation plan for your vehicle model, please contact Huaquan Power’s customer service. Huaquan’s technical staff can conduct an on-site inspection and provide professional installation advice.
