The motors that we use are AC low voltage motors which means that they do not work with brushes at all. The only wearable parts on the motors are the bearings and mechanical seals like normal AC motors.

We suggest our customer to insure the goods, to avoid any loss in transportation

Shipped in 5-15 days after payment, and urgent order please check with our sales and who will offer a good delivery time for you according to your urgent request by express shipping.

Firstly, we do quality test during every process. And we use production instruction cards, when one process finished , the work will be signed on the production instruction cards.Secondly, we will collect all comments on our products from customers in time. And try our best to improving quality all the time.

Yes, our MPPT controller supports modifying the speed, if you need you can send me a video on how to modify the speed of the solar water pump,

It is possible to run the pump directly off of a battery bank. You will need to make sure that the voltage of the battery bank falls within the input range of the controller.

The easiest way to determine this is to add 1.3 times on top of the pump wattage for minimum requirements and recommended would be 1.4 times. I.e. a 500w pump requires minimum 650w and recommended 700w to operate.

Centrifugal water pumps use centrifugal force to pressurize and move water from the inlet to the outlet. A rotating set of vanes (called an 'impeller') is spun by the pump shaft. As water is forced through the impeller, rotational energy is transferred from the impeller to the water, which gains velocity and pressure through the centrifugal force applied and is flung from the impeller. The volute (a spiral-shaped case) funnels the now-pressurized water to the outlet. Image below shows clockwise rotation as viewed from the motor mound.

Ningbo Guanghan Solar Pump Industry is a factory specialized in manufacturing solar submersible pumps and solar surface pumps. The head office was established in 1989 in Daxi Town, Wenling City, the hometown of water pumps in China, and a branch factory was established in Jiangshan Town, Ningbo City in 2019. It is located near the highway intersection, very close to Ningbo Port and Shanghai Port, and the transportation is very convenient.

A permanent magnet synchronous motor (PMSM) uses permanent magnets embedded in the steel rotor to create a constant magnetic field. The stator carries windings connected to an AC supply to produce a rotating magnetic field. At synchronous speed the rotor poles lock to the rotating magnetic field. Permanent magnet synchronous motors are similar to brushless DC motors.

Because of the constant magnetic field in the rotor these cannot use induction windings for starting. These motors require a variable-frequency power source to start.

The main difference between a permanent magnet synchronous motor and an asynchronous motor is the rotor. Some studies seem to indicate that NdFeB permanent magnet synchronous motors are around 2 percent more efficient than the highest-efficiency (IE3) asynchronous motors—using the same stator laminations and similar variable-frequency speed controllers.

Permanent magnet motors have been used as gearless elevator motors since 2000.

Ningbo Guanghan Solar Pump Industry is a factory specialized in manufacturing solar submersible pumps and solar surface pumps. The head office was established in 1989 in Daxi Town, Wenling City, the hometown of water pumps in China, and a branch factory was established in Jiangshan Town, Ningbo City in 2019. It is located near the highway intersection, very close to Ningbo Port and Shanghai Port, and the transportation is very convenient.

We ship samples by international express such as FEDEX, UPS, DHL, TNT, EMS, etc.

We can produce 400-500pcs dc solar water pumps a day, which can be a good guarantee that we will deliver within the stipulated time.

Own our own solar pump factory, no more mark up and resale price.Aim at long-term cooperation, always offer our best price and best solution to you.

The DC pump can directly use the DC power generated by the solar panel to run the water pump. Reduce the power loss in the conversion process. Therefore, the DC pump is more efficient and requires fewer solar panels. The DC pump also does not require an inverter to convert the direct current generated by the solar panel into alternating current. Reduced costs.

Yes, the controllers come standard with a speed adjustment dial whereby you can reduce the speed of the motor if needed.

Currently affected by COVID-19, air transport in many countries and regions has been suspended. Such as many countries in South America and Africa. It may also be returned or detained during shipping.

Sea transport is temporarily not affected by COVID-19 and can be transported normally. If you want to buy a solar pump, please contact me first.

If you encounter after-sales problems of TPON solar well pump kit, please contact me as soon as possible and take a video and photo of the water pump and controller for me. I will send the video and controller to our engineer for viewing, and our engineer will tell you how to pass Commissioning returns the pump to normal operation. If the pump part or controller is damaged, we will send you new parts free of charge.

We provide 18 months warranty for every TPON small solar water pump.

Our solar powered water pumps and controllers will be wrapped in bubble bags, and then put them in the wooden box together with the accessory bag. Our wooden box is shock-resistant and anti-drop.

We provide OEM service for customers free of charge. You only need to order more than 10pcs small solar powered water pump and we can provide OEM service for you. We will laser your exclusive brand on the motor and controller of the pump, but for wooden boxes, you can only use our conventional wooden boxes. If you order more than 200pcs solar water pumps, we will customize your exclusive wooden box for you, and we will print your exclusive brand logo on the wooden box.