Innovative Technology-leading Solar Pump Manufacturer

Water For Life With Solar Power
Home / All / NEWS ON DIFFUL PUMP / DIFFUL solar water well pump Differences | Stainless Steel Impeller Pump, High-Speed Pump, Precisely Empowering Special Scenarios

DIFFUL solar water well pump Differences | Stainless Steel Impeller Pump, High-Speed Pump, Precisely Empowering Special Scenarios

Jan 29,2026
 In the previous news article, we detailed the two major categories of DIFFUL solar water well pumps that are suited for conventional scenarios—screw pumps (high adaptability, low maintenance) and plastic impeller pumps (high cost-effectiveness, large flow)—helping users solve selection challenges for regular irrigation and standard water supply situations. Today, we focus on the remaining two core categories—stainless steel impeller pumps and high-speed pumps—and break down their key advantages and suitable scenarios for special requirements such as complex water quality, high lift, and deep wells, assisting users in selecting the right pump efficiently according to their needs.

As a solar water pump manufacturer, DIFFUL has always adhered to a product development philosophy of 'scenario adaptability and precise empowerment.' All four categories of solar water well pumps are equipped with high-performance MPPT controllers, which can flexibly adapt to different sunlight conditions and ensure stable operation with low energy consumption. Among them, stainless steel impeller pumps emphasize high quality and durability, while high-speed pumps focus on high power and efficiency. Together, they precisely cover the water supply needs of special scenarios, complete the product matrix, and provide reliable water supply solutions across various industries.

1. Solar Stainless Steel Impeller Pump: 304 Stainless Steel for Durability and High Quality

The DIFFUL solar stainless steel impeller pump is positioned around high quality and durability. Its core feature lies in the impeller, which is made of 304 stainless steel, paired with a rotor and pump shaft also made of 304 stainless steel. This material offers outstanding strength, ensuring the product’s excellent durability and high-quality characteristics. 304 stainless steel has strong resistance to corrosion, acids and alkalis, and wear, so it will not rust even after long-term immersion in water. This effectively extends the product's lifespan and significantly reduces maintenance frequency. It is suitable for liquids with slight corrosiveness and for water of poor quality or with high mineral content. Compared to plastic impeller pumps, it has a clear durability advantage and a longer service life, making it especially suitable for prolonged outdoor use in harsh environments, showcasing the strength of a high-quality product.

Relying on 304 stainless steel impellers and an integrated high-quality structural design, this type of product also features low power consumption, low voltage, and high lift. For some models, the maximum lift can reach up to 300 meters, requiring fewer solar panels and batteries, making installation costs reasonable while balancing high quality and cost-effectiveness. The products are equipped with high-performance MPPT controllers that automatically adjust operating status according to sunlight intensity, maximizing the use of solar energy and improving operational efficiency. Some AC/DC dual-use models feature full-power automatic hybrid compensation functionality, allowing the minimum solar power to drop as low as 1W, suitable for various conditions with poor sunlight. The water outlet, connection fittings, and oil cylinder mostly use stainless steel or copper materials, complementing the 304 stainless steel impellers and further enhancing corrosion and wear resistance. Coupled with Japanese NSK bearings, the operational reliability is higher, fully highlighting the core advantages of high quality and durability.
2.Solar High-Speed Pump: 6000 RPM high speed, compact size with strong power, ideal for high-lift deep wells

The core of DIFFUL solar high-speed pump highlights five core features - maximum speed of 6000 rpm, small size, strong power, high solar energy utilization, energy saving, high performance and high adaptation as the core positioning, and accurately adapt to high-demand deep well scenarios. The product adopts a permanent magnet DC brushless synchronous motor, with a 304 stainless steel rotor shaft, which effectively avoids the risk of shaft fracture, and at the same time, with the advantage of high-speed operation of up to 6000 rpm, the power output is strong, which can quickly pump water from deep wells to the ground, greatly shorten the pumping cycle, and efficiently meet the demand for high-head water. The upper end adopts two deep groove ball bearings, and the lower end adopts two angular contact bearings, which can withstand large radial and axial forces, ensuring operational stability in high-speed operation. In addition, the motor is 15%-20% more efficient than traditional pumps, with significant energy-saving and energy consumption effects, and is equipped with a high-performance MPPT controller to further improve solar energy utilization, maximize the conversion of solar energy resources, achieve low-consumption and efficient operation, and effectively save energy costs.

Another outstanding feature of this type of product is its small size, compact overall structure, and smaller footprint than traditional deep well pumps, which can greatly save the space and cost of pump installation in the well, and adapt to various deep wells, boreholes and other narrow installation scenarios. At the same time, it is extremely adaptable, with a maximum head of 473 meters and a maximum flow rate of 49 cubic meters per hour, which can not only meet the moderate water supply needs of small applications, but also adapt to large-scale industrial processes, water treatment plants and other large-flow, high-head water use scenarios, and can be widely used in domestic water, agricultural irrigation, animal husbandry and industrial auxiliary water supply and other fields, especially suitable for the extraction and use of groundwater sources such as deep wells, boreholes, and reservoirs. In addition, the controller equipped with the product is waterproof to IP65, with MPPT function, which can display the working status of power, voltage, current, speed and other working conditions in real time, support automatic power on and off, and have soft start and a variety of protection functions, which can effectively protect the pump motor, extend the service life, and can support solar DC power supply, adapt to remote areas without grid coverage, further broaden the application scenarios, and highlight its core advantages of small size, strong power, energy saving and high efficiency in an all-round way.

The differentiated design of the four main types of DIFFUL solar water well pumps is primarily aimed at precisely matching the water needs of different users and scenarios. Whether for conventional irrigation or deep well high-lift pumping, users can find suitable solutions within the DIFFUL product range. All products are developed around the core requirements of 'low consumption, high efficiency, durability, and convenience,' combined with high-performance MPPT controllers to maximize the advantages of solar energy. Additionally, dedicated maintenance tutorial videos are provided to offer users comprehensive support.

DIFFUL is an innovative and technology-leading manufacturer of solar pumps, specializing in DC solar pumps, AC/DC hybrid solar pumps, and shielded motor solar pumps. Since our establishment in 1989, we have maintained a 100% focus on this industry, with hundreds of thousands of our pumps in use worldwide. Our commitment to quality is evident through the use of high-precision and fully automatic processing machines, advanced assembly lines, and testing equipment to enhance efficiency and ensure top-notch products. Furthermore, we have established our own controller production and research and development workshop, guaranteeing that every step of the production process is meticulously controlled. We are actively seeking distributors and offering support for OEM partnerships. If there are any further discussions or details that need to be addressed, please feel free to contact us. We appreciate your attention and trust.

E-mail:sales08@diffulpump.com

Tel/WhatsApp:+86 15058288607

4inch 2hp solar water pump Stainless steel impeller price DC brushless motor solar submersible pump
Dc solar pump Stainless steel impeller solar bore pump for garden watering and irrigation, Large head and large flow.
4/6inch 1500W DC solar submersible pump with Stainless steel impeller for irrigation price
6" DC solar well pump Stainless steel impeller for garden, farm, fountain and livestock. Ex-factory price, high quality.
4 inch AC/DC hybrid solar submersible pump with S/S impeller High lift, high quality solar pump factory direct sales
AC/DC brushless solar submersible pump with S/S impeller High lift for deep wells. Cost-effective solar pump.
DIFFUL high speed deep well pump | The maximum speed is 6000 rpm | solar water pump for irrigation | Recruit dealers and Support OEM
6000 rpm high-speed deep well pump Rated head: 8m3/h High head, the maximum rated head is 260m

Difful is an innovative technology-leading solar pump manufactory for DC solar water pumps, AC/DC hybrid solar pumps, and shielded motor solar pumps.

Since our founding in 1989, we have been 100% focused on this area, and we have hundreds of thousands of pumps in use worldwide. We have high-precision and fully automatic processing machines, advanced assembling lines and testing machines to improve the quality and efficiency.

Get energy from sunlight, move water from nature and serve life.

----This has always been the vision of Difful.

What Sets Us Apart

8000m2

Factory
Area

200,000pcs

Annual
output

100+

Countries

50000+

Customer Recognition

Please Send Your Message To Us

Click Join to create maximum profits for you

Water For Life With Solar Power

We are not just a manufacturer of solar water pumps, we focus on your business and help you achieve your long-term goals.

  • Catalog Of Hot-selling Models
  • Free Marketing Guidance
  • Free Selection Guidance
  • Free Customized Service Plan

2 years warranty, quick response to any quality problems within 24 hours. If your team needs professional training, please contact us for online training.

Need a solar pump for your own use?

If you would like product information or pricing for a pump system that is for your own usethen please click here.

Want to become a Difful Reseller?

Difful only sells products via a professional partner network.You can read more about our partner program requirements and benefits on the partner ADVANTAGE page.