Ten Chinese inverter generator manufacturers for retail, rental and distribution buyers, with the method disclosed, BEAR listed as our own brand, and the per-model facts to request.
In this guide9 sections
Inverter generators are the segment where Chinese manufacturers compete most directly with the retail brands you already know, because many of those brands buy from the companies below. This page lists nine mainland Chinese manufacturers that state inverter generator production on their own websites, explains how they were chosen, and gives the per-model facts that make inverter quotations comparable: output basis, harmonic distortion conditions, parallel capability, noise measurement and certificates by market. BEAR publishes this page and appears at number three under the same criteria; that interest is stated so you can weigh it.
If you are choosing one unit rather than a supplier, start with the inverter generator buying guide and the portable inverter generator selection guide. This page is about whom to write to and what to ask.
How this list was compiled
- Inclusion. The company's own website describes manufacturing of gasoline inverter generators (open-frame or enclosed, including dual-fuel variants) in mainland China and sells to export markets.
- Order. Entries are ordered by inverter range breadth and by fit for an importer's first programme: published model ranges, own engine and alternator supply where stated, and workable quantities. Size alone does not move a company up.
- Sources. Every third-party statement comes from that company's own website, read on 7 November 2026. Ranges, founding years and capacities are the companies' claims; BEAR has not audited them.
- Interest. BEAR is the generator brand of Fuan Hehuoxiong Electromechanical Co., Ltd., which publishes this site. The BEAR entry uses only facts published on this site.
Quick comparison: nine inverter generator manufacturers
| # | Manufacturer | Base | Inverter range stated on its own site | Best for | Ask them for |
|---|---|---|---|---|---|
| 1 | Senci Mechanical & Electrical Co., Ltd. | Chongqing | SC1400i to SC2500i-class series and larger on its inverter page | high-volume programmes on in-house engines and alternators | THD test conditions per model |
| 2 | Xingyue Group (Zhejiang Xingyue Industry Co., Ltd.) | Yongkang, Zhejiang | 0.7 to 7 kVA | buyers who want the engine, alternator and inverter module from one maker | parallel kit and module warranty terms |
| 3 | BEAR (our brand) | Fu'an, Fujian | from a 2.8 kW rated model to a 4.2 kW rated model on the product pages, plus multi-fuel silent configurations | small first orders, configurable models, EAC declarations on listed models | written quotation fixing output basis, voltage, frequency, documents, MOQ and lead time |
| 4 | Chongqing RATO Technology Co., Ltd. | Jiangjin, Chongqing | silent inverter R, HP and R6 series; open-frame inverter R and R3 series | enclosed and open-frame inverter ranges at group volume | model list with rated and maximum output |
| 5 | Taizhou Bison Machinery Co., Ltd. | Taizhou, Zhejiang | 1,000 to 6,000 W, including parallel-ready and LPG models | private-label ranges with fast artwork and colour changes | OEM scope and certificate numbers per model |
| 6 | United Power Equipment Co., Ltd. | Fuzhou, Fujian | IG1000 to IG8000E; open-frame inverter models at 5,800 to 7,500 W | dealers who also buy gasoline, diesel and dual-fuel sets from one plant | which engines are own-made |
| 7 | Taizhou Qinglong Machinery & Electric Co., Ltd. with Taizhou Northstar Technology Co., Ltd. (shared contact details) | Taizhou, Zhejiang | inverter specialist (QL3000IS and related models); portable inverter generators alongside garden machinery | European and North American retail and supermarket programmes | noise and THD test reports per model; which company signs the contract |
| 8 | Chongqing DK Power Machinery Co., Ltd. | Hechuan, Chongqing | enclosed inverter DK1200i to DK5500i | enclosed inverter sets with US and EU certificate statements | certificate scope per model |
| 9 | Chongqing Dajiang Power Equipment Co., Ltd. (DUCAR) | Chongqing | gasoline inverter and frame inverter categories | buyers who want a second plant outside China (Vietnam) | which plant builds your order |
The "best for" column is an editorial judgement from the companies' published ranges, not a test result.
The nine manufacturers
1. Senci Mechanical & Electrical Co., Ltd. — Chongqing
Senci's company profile states a 1990 founding, a Shanghai Stock Exchange listing since late 2019 under code 603109, in-house alternators and small engines, an annual capacity "exceeding 3 million" small alternators and motors and 2.2 million complete products, and customers in more than 100 countries. Its inverter generator page lists series from the SC1400i upward.
Best for: high-volume inverter programmes where in-house engine and alternator supply matters. Ask for: the THD test conditions and the parallel kit for each model.
2. Xingyue Group — Yongkang, Zhejiang
Xingyue's about page describes a group established in 1989 with headquarters in Yongkang, 23 subsidiaries and 4,600 staff, and presents itself as one of the earlier inverter generator makers, with a self-designed engine, alternator and inverter module and a range from 0.7 kVA to 7 kVA.
Best for: buyers who want the engine, alternator and inverter module designed by one maker. Ask for: the inverter module warranty terms and the parallel kit per model.
3. BEAR (our brand) — Fu'an, Fujian
BEAR is the generator brand of Fuan Hehuoxiong Electromechanical Co., Ltd., based in Fu'an, Fujian. The gasoline inverter generators on this site run from a 2.8 kW rated model (the H-X-3000-A, 3.1 kW maximum) through the 3.5 kW H4500IE to the 4.2 kW rated H-X-5500, and the multi-fuel silent inverter configurations are quoted per inquiry. Every catalogue product can be configured to order.
Best for: importers and distributors who want small first orders (a confirmed in-stock model ships from one unit), a configurable catalogue rather than a fixed SKU list, sample units and factory visits by appointment, and one inquiry contact. For buyers in the Eurasian Economic Union, EAC declarations of conformity exist for the diesel and gasoline models named in those declarations, not for every model on this site; copies are available on request. Ask for: the written quotation that fixes the output basis, voltage, frequency, documents, the minimum quantity for production orders and the lead time for your market. Prices are quoted per inquiry and are not published.
4. Chongqing RATO Technology Co., Ltd. — Jiangjin, Chongqing
Rato's company profile describes a group established in 2007 covering gasoline and diesel power, generators and outdoor power equipment, and its about page gives a 430,000 m² site in Jiangjin, an annual output of 4.5 million units across all products and sales to more than 80 countries. Its silent inverter generator page lists R, HP and R6 series alongside open-frame inverter R and R3 series.
Best for: enclosed and open-frame inverter ranges at group volume. Ask for: the model list with rated and maximum output and the engine fitted to each.
5. Taizhou Bison Machinery Co., Ltd. — Taizhou, Zhejiang
Bison's profile and history pages give a 2014 founding with registration in 2015 and a location in Taizhou near Ningbo port; the two pages publish different headcount, floor-area and export-country figures, so none of those figures is repeated here. Its inverter generator page covers 1,000 to 6,000 W, including a parallel-ready 5,000 W model and an LPG inverter model.
Best for: private-label ranges where artwork, colour and nameplate changes need to move quickly. Ask for: the OEM scope in writing and certificate numbers per model.
6. United Power Equipment Co., Ltd. — Fuzhou, Fujian
United Power's about page states a 2003 founding in Fuzhou, and its inverter generator page lists models from the IG1000 to the IG8000E, including IG4500 models at 3,500 to 3,800 W and open-frame inverter models at 5,800 to 7,500 W, next to gasoline, diesel, dual-fuel and welder generators.
Best for: dealers who want inverter, gasoline, diesel and dual-fuel sets from one plant. Ask for: a statement of which engines are own-made and the certificate numbers per model.
7. Taizhou Qinglong Machinery & Electric Co., Ltd. with Taizhou Northstar Technology Co., Ltd. — Taizhou, Zhejiang
Qinglong's home page describes a company founded in 2008 in Jiaojiang District that manufactures inverter generators as its main product, names Europe and North America as its main markets, and lists the QL3000IS and related models with parallel capability. Northstar's home page states a 2008 founding, a 52,000 m² factory in Taizhou Bay New District, a 300-member development team, exports to more than 60 countries and supply to large European supermarkets, with portable inverter generators, lawn mowers and pool robots as main products. The two sites publish the same telephone number and e-mail domain, so treat them as one group and ask which company signs the contract and issues the documents.
Best for: European and North American retail and supermarket programmes that want an inverter specialist. Ask for: noise and THD test reports per model with the measurement conditions, and the contracting entity.
8. Chongqing DK Power Machinery Co., Ltd. — Hechuan, Chongqing
DK Power's home page describes a 70,000 m² site in Caojie Industrial Park, Hechuan, 400 employees and seven assembly lines, with gasoline engines, gasoline and diesel generator sets and enclosed inverter models from the DK1200i to the DK5500i, and lists EPA, CARB, CE and GS among its certificate statements.
Best for: enclosed inverter sets for buyers who need US and EU certificate statements on the model list. Ask for: the certificate scope per model and the engine fitted to each.
9. Chongqing Dajiang Power Equipment Co., Ltd. (DUCAR) — Chongqing
Ducar's home page describes a company founded in 2004 as a subsidiary of the listed Zongshen Power, with more than 2,900 employees, R&D centres in Fuzhou, Ningbo and Chongqing, and manufacturing bases in Chongqing and Vietnam, with gasoline inverter generators and frame inverter generators among its product categories.
Best for: buyers who want a second manufacturing base outside China. Ask for: which plant will build your order and the certificate numbers that apply to it.
What to check on any inverter unit before you compare quotations
Inverter units from different makers look alike on a data sheet. The housing itself tells you how the unit is labelled, serviced and transported, so ask every shortlisted supplier for photographs of the same ten points, or inspect them on a sample.
| # | Point on the housing | What to confirm with the maker |
|---|---|---|
| 1 | Carry handle | lifting points and the dry weight on the data sheet |
| 2 | Fuel cap | tank capacity and the fuel grade the engine is set for |
| 3 | Fuel label | tank volume and ethanol limit printed in your market's language |
| 4 | Warning label block | which safety pictograms and languages are standard, and which are OEM options |
| 5 | Upper louvres | cooling-air intake side, so the unit is not boxed in on that side |
| 6 | Service cover | access to the spark plug, air filter and oil fill without tools |
| 7 | Notice sticker | battery and storage notices that the manual repeats |
| 8 | Lower louvres | cooling-air path and the clearance the manual requires |
| 9 | Folding feet | stand design and the stability on uneven ground |
| 10 | Wheel kit | whether wheels are standard or an option, and the carton size with and without them |
Noise figures: ask for the test side and distance
Most makers quote noise in dB(A) at seven metres. The number is only comparable when the maker also states the side the microphone faced, the load at the time and whether an enclosure was fitted. The exhaust and cooling-air discharge usually sit on one end, which is why the same unit can give two figures several decibels apart.
What to request per model from any maker on this list
- Output basis. Rated and maximum output in watts at your voltage and frequency, and whether the maximum figure is a starting surge or a continuous short-time rating.
- Harmonic distortion. Total harmonic distortion with the load condition it was measured at; the THD specification request guide gives the wording.
- Parallel capability. Whether a parallel kit exists for the model, what it adds, and whether two units of different ratings can be paired; see the parallel kit guide.
- DC and USB outputs. Voltage and current of each outlet, so your packaging and manual match the unit.
- Run time. Hours at the stated load with the tank capacity named.
- Certificates by market. Certificate numbers whose model codes match the nameplate for EPA or CARB, CE, UKCA or EAC as your market requires; follow the certificate-to-nameplate match guide and the import compliance guide.
- OEM scope. Colour, nameplate, carton and manual language changes in writing, with the quantities they require, as in the OEM and private-label checklist and the MOQ and quotation guide.
Other lists in this series
- Top 10 generator manufacturers in China covers all segments and the method behind the series.
- Top portable gasoline generator manufacturers in China covers open-frame gasoline sets, often from the same makers.
- Top diesel generator manufacturers in China covers air-cooled and industrial diesel sets.
- Generator manufacturers in Fu'an looks at the Fujian cluster where BEAR is based.
Frequently asked questions
Why are the big retail inverter brands not on this list?
Because the list covers mainland Chinese manufacturers that state production on their own websites. Several retail brands source from the companies above; ask your supplier which plant builds the model you are quoted.
Do inverter makers also build open-frame gasoline generators?
Most of the companies above do, and the portable gasoline list in this series covers that segment. The two segments share engines and plants, but the inverter module, the enclosure and the test regime differ.
How does BEAR handle small inverter orders?
A confirmed in-stock model ships from one unit; production and custom orders are quoted with their own minimum quantity and lead time. Factory visits can be arranged by appointment, and the inquiry contact is Miya.
Next step
Shortlist two or three makers, send each the per-model requests above for the same two or three models, and compare the written returns before you discuss price. To start with BEAR, send the model or output class, destination market, quantity and target date and you will receive a written quotation that fixes the output basis, voltage, frequency, documents, MOQ and lead time.
