As a Tier-1 off-grid solar inverter manufacturer and factory in China, Hemao delivers heavy-duty power solutions engineered for industrial, commercial, and residential standalone solar systems. We provide comprehensive wholesale supply with flexible customization services available, including adjustable voltage parameters, localized grid frequency matching, and bespoke enclosure branding. All units are built in our ISO-certified facility to ensure stable pure sine wave output and high-efficiency thermal management under extreme environmental conditions.
-
![5KW Off Grid Solar Inverter]()
5KW Off Grid Solar Inverter· 93.5% peak efficiency with low standby power loss.. · Pure sine wave output with THD <3% for inductive loads.. · Parallel scalability up to 6 units for 30KW microgrids.. · Built-in 100A MPPT -
![12KW Off Grid Solar Inverter]()
12KW Off Grid Solar Inverter· 12,000W rated power with pure sine wave AC output. · Up to 99% conversion efficiency via silicon carbide parts. · Dual MPPT (120VDC–1,000VDC) for shaded environment stability. · 48VDC battery -
![Off Grid 10KW Solar Inverter]()
Off Grid 10KW Solar Inverter· Pure sine wave output with 98.4% max conversion efficiency.. · Dual MPPT trackers, max PV input voltage up to 500VDC.. · Parallel support up to 6 units for 60KW system expansion.. · BMS -
![8KW Off Grid Inverter]()
8KW Off Grid Inverter· 98.4% Peak Efficiency: Minimizes thermal loss during DC-AC conversion.. · Dual 120A MPPT: Maximum PV input voltage up to 500VDC for string optimization.. · 6-Unit Parallel Support: Scalable -
![3KW Off Grid Solar Inverter]()
3KW Off Grid Solar Inverter· 93% peak efficiency with minimized standby power consumption.. · Pure sine wave output with THD <3% for inductive loads.. · Built-in 80A MPPT charge controller up to 400VDC input voltage.. · -
![12KW Off Grid Solar Inverters]()
12KW Off Grid Solar Inverters· 12KW Rated Power: High-density output for industrial & residential loads.. · Parallel Ready: Supports up to 6 units for 72KW total capacity.. · 98.4% Peak Efficiency: Optimized power conversion
Technical Specifications & Buying Guide
Selecting the right commercial off-grid inverter requires precise matching of peak surge capacities and battery chemistry compatibility. The matrix below outlines our core off-grid inverter series engineered for global industrial and wholesale procurement.
|
Inverter Series / Model |
Rated Power Range |
Output Waveform |
Battery Voltage Options |
Peak Efficiency |
Minimum Order Quantity (MOQ) |
Customization Options |
|
HM-LFS Series (Low Frequency) |
1kW - 12kW |
Pure Sine Wave |
12V / 24V / 48V DC |
≥92% |
10 Units |
Custom Transformer & Enclosure |
|
HM-HFS Series (High Frequency) |
1.5kW - 6kW |
Pure Sine Wave |
24V / 48V DC |
≥94% |
20 Units |
Custom LCD Interface & Protocol |
|
HM-IND Series (Three-Phase) |
10kW - 100kW |
Pure Sine Wave |
96V / 192V / 384V DC |
≥95% |
2 Units |
Parallel Clustering & Custom Input |
Tailored Customization Services for Global Infrastructure
1. Advanced Parallel Clustering for Industrial Scaling
For projects with high-capacity loads, our technical team can provide bespoke parallelization modifications. We customize the control mainboards to support up to 6 units running in parallel on a single or three-phase system. This configuration utilizes a dynamic master-slave synchronization algorithm, ensuring balanced load sharing and preventing single-point system failures in remote telecommunication towers or off-grid mining sites.
2. Multi-Battery Chemistry Integration & Firmware Matching
Modern off-grid setups are moving beyond standard lead-acid batteries. Our R&D department offers customized firmware flashing to integrate seamlessly with specific Lithium Iron Phosphate ($LiFePO_4$), Lithium Titanate (LTO), and custom BMS (Battery Management System) protocols via RS485, CAN, or Modbus communication. This ensures precise state-of-charge (SoC) tracking and optimized charging profiles.
Why Partner with Hemao as Your Off-Grid Inverter Supplier?
Rigorous QC Standards & Testing Infrastructure
Every off-grid inverter manufactured in our factory must clear a 4-step quality control pipeline before packaging. This includes automated optical inspection (AOI) for PCB component alignment, full-load, high-temperature burn-in testing for 48 hours at $45^\circ\text{C}$, dielectric withstand-voltage testing, and transient-response performance analysis.
Certified Production: Our factory operates under ISO 9001:2015 and ISO 14001 management standards.
International Compliance: Products carry authentic CE, RoHS, IEC 62109, and TUV certifications required for smooth customs clearance and local grid compliance.
Scalable Output Capacity: With 4 automated assembly lines, our factory maintains a monthly production capacity of over 15,000 units, guaranteeing stable lead times for bulk wholesale orders.
FAQ
Q: What is the primary operational difference between your low-frequency and high-frequency off-grid inverters for industrial bidding?
A: Low-frequency inverters (HM-LFS series) utilize a robust copper transformer, allowing them to handle massive peak surge currents up to 300% of their rated capacity for 5 seconds. This makes them ideal for heavy inductive loads like air conditioners, water pumps, and industrial motors. High-frequency inverters (HM-HFS series) utilize smaller electronic circuits, offering a more compact footprint, lower weight, and higher peak efficiency at a lower cost, making them ideal for residential setups and electronic loads.
Q: Do your off-grid inverters support custom output voltage and frequency configurations for specific regional markets?
A: Yes. As a direct manufacturer, we offer hardware and firmware customization to match local grid and appliance requirements globally. We can factory-configure the AC output to 110V, 120V, 220V, 230V, or 240V, and set the frequency precisely to either 50Hz or 60Hz during the manufacturing stage.
Q: What custom OEM options are available for wholesale orders, and what are the minimum order thresholds?
A: Our basic OEM services include custom exterior chassis colors, silk-screened brand logos, and tailored packaging designs, starting at an MOQ of 50 units. For advanced customization services available—such as specific communication protocols, altered input voltage windows, or specialized IP65 outdoor enclosures—the project undergoes engineering review, typically requiring an MOQ of 100 units.
Optimize Your Supply Chain with Factory-Direct Pricing
Looking to secure a reliable off-grid solar inverter supplier for your distribution network or upcoming commercial project? Contact our engineering team today to receive complete technical datasheets, factory compliance certifications, and a tier-structured wholesale price list.
Email: huangxy@xmcnitg.com
Response Time: Technical quotation provided within 12 business hours.
As one of the most professional off grid inverter manufacturers and suppliers in China, we have world-leading production equipment and strong manufacturing capabilities. We warmly welcome you to buy cheap off grid inverter from our factory.
