As demand for automated cleaning continues to grow in shopping malls, office buildings, hotels, hospitals, factories, and other public facilities, commercial cleaning robots and robotic floor scrubbers are increasingly being used for large-area and long-duration floor cleaning.

 

Stable water delivery, accurate detergent dosing, and low-maintenance fluid systems are critical to the cleaning performance, operating efficiency, and lifecycle cost of these machines.

 

 

The Kamoer KDLP600 stepper diaphragm liquid pump is primarily used to deliver clean water in commercial cleaning robots and large robotic floor scrubbers. By combining stepper motor control with diaphragm pump technology, it provides controllable flow, reliable operation, and reduced routine maintenance for commercial cleaning equipment operating for extended periods every day.

 

Clean-Water Delivery in Commercial Cleaning Robots

In a typical robotic floor scrubber fluid system, clean water flows from the solution tank through filters, manual valves, and liquid-level protection components before entering the fluid control module.

 

Large commercial cleaning robots normally use two KDLP600 stepper diaphragm pumps to deliver water to the brush area. The output from the two pumps is monitored, combined, and controlled before being divided through a Y-connector and supplied to the left and right brush discs.

 

Clean water, or water mixed with detergent, is continuously delivered beneath the brushes to support consistent floor scrubbing.

 

Typical application environments include:

• Shopping malls
• Offices and corporate campuses
• Hotels and public facilities
• Hospitals and schools
• Factories and warehouses

 

Depending on the end-use environment, a commercial cleaning robot may operate for approximately eight hours per day. The water pumps therefore need to provide stable flow, reliable long-duration operation, and low maintenance requirements.

 

Why Use a Stepper Diaphragm Pump for Water Delivery?

 

Lower Maintenance Than Peristaltic Pumps

A peristaltic pump transfers liquid by continuously compressing flexible tubing with rotating rollers. Although the liquid only contacts the tubing, long operating periods cause gradual tubing fatigue and wear.

 

In commercial cleaning equipment, frequent tubing replacement can result in:

• Higher consumable costs
• Additional disassembly and maintenance
• Equipment downtime
• Flow changes after tubing replacement
• Increased workload for service personnel

The KDLP600 uses a diaphragm pumping structure and does not rely on continuously compressed pump tubing.

 

For clean-water delivery, this design reduces consumable replacement and routine maintenance, making it better suited to commercial equipment operating for long periods.

 

Better Flow Control Than Conventional DC Diaphragm Pumps

Conventional DC diaphragm pumps are commonly controlled by varying the voltage or PWM duty cycle. Actual flow may be affected by motor variation, supply-voltage fluctuations, system backpressure, and long-term mechanical wear.

 

In a dual-brush cleaning robot, unstable flow may cause:

• Uneven water delivery between the two brushes
• Insufficient water in certain cleaning areas
• Inconsistent detergent consumption
• Flow differences between machines

The KDLP600 is driven by a stepper motor. The main controller can regulate pump speed and operating time through pulse signals, providing more predictable water delivery.

 

Key benefits include:

• Direct speed control
• Fast start and stop response
• Better control of water delivered per unit of time
• Improved consistency between two pumps
• Flow adjustment according to travelling speed
• Programmable flow settings for different cleaning modes

 

Different operating parameters can be assigned to light, standard, and intensive cleaning modes, helping balance cleaning performance and water consumption.

 

Advantages of the KDLP600 in Large Robotic Floor Scrubbers

Suitable for Long Commercial Operating Hours

Commercial cleaning robots may operate for approximately eight hours per day. The KDLP600 has a specified service life of at least 5,000 hours, supporting frequent starts, stops, and extended daily operation.

 

Reduced Routine Maintenance

Because the diaphragm pump does not require periodically replaced pump tubing, it can help reduce consumable costs, maintenance frequency, and equipment downtime.

 

Controllable Flow Adjustment

Stepper motor control allows pump speed to be adjusted through pulse frequency and pulse count, providing a flexible basis for water-flow control under different cleaning programs.

 

Dual-Pump Configuration

Large robotic floor scrubbers can use two KDLP600 pumps to support dual-brush systems, larger cleaning widths, or higher water-flow requirements.

 

Depending on the system control strategy, the pumps can:

• Operate simultaneously
• Start in stages
• Switch according to flow demand
• Run at different speeds
• Provide operating redundancy

 

Convenient System Integration

The KDLP600 supports 12 V or 24 VDC power and can be integrated into a cleaning robot’s fluid control module together with:

• Flow sensors
• Liquid-level switches
• Filters
• Check valves
• Solenoid valves
• Main system controllers

 

Flexible Connection Options

The pump is available with hose-barb or NPT 1/8 threaded connections, supporting different tubing arrangements, fittings, and modular fluid-system designs.

 

Multiple Pumps Working Together in a Complete Fluid System

A commercial cleaning robot requires more than internal water delivery. It may also need automatic station refilling, detergent dosing, real-time chemical mixing, and dual-brush liquid distribution.

Different types of miniature pumps can be integrated into the same fluid system to perform dedicated functions.

 

Internal Clean-Water Delivery

Stepper diaphragm liquid pumps installed inside the robot transfer water from the solution tank to the brush area.

The flow can be adjusted according to cleaning mode, robot travelling speed, and floor conditions. Large dual-brush machines typically use two clean-water pumps to provide sufficient total flow.

 

Automatic Refilling at the Workstation

When the robot returns to its workstation, a dedicated refill pump can automatically add clean water to the onboard tank.

This reduces manual refilling and supports longer autonomous operation and automated fleet maintenance.

 

Real-Time Dual-Detergent Metering

Two detergent metering pumps can be connected to separate chemical containers.

Depending on the floor material, contamination level, and cleaning program, the system can select one detergent or dose both detergents in a controlled ratio.

 

Millilitre-level dosing control supports:

• Real-time automatic mixing of two detergents
• Programmable detergent ratios
• Reduced chemical overuse
• Lower risk of manual mixing errors
• Rapid switching between cleaning programs

 

The complete fluid process can be summarized as:

Automatic workstation refilling → onboard water storage → stepper diaphragm pump water delivery → detergent metering → real-time chemical mixing → dual-brush liquid distribution

 

By coordinating multiple miniature pumps, commercial cleaning robots can automate the entire liquid-management process, from water refilling and internal delivery to detergent dosing and brush supply.

 

Reliable Miniature Pump Solutions for Commercial Cleaning Robots

Kamoer is a leading enterprise in reliable miniature pump and precision fluid-control technology. The company provides fluid-transfer solutions for commercial cleaning robots, robotic floor scrubbers, and automated cleaning equipment.

 

For applications involving long daily operating hours, high maintenance costs, and demanding flow-control requirements, the KDLP600 combines stepper motor control with diaphragm pumping technology.

 

This helps address two common limitations:

• The periodic tubing replacement required by peristaltic pumps
• The limited flow-control consistency of conventional DC diaphragm pumps

Together with dedicated workstation refill pumps and detergent metering pumps, Kamoer can provide a complete miniature pump solution covering:

• Automatic workstation water refilling
• Internal clean-water delivery
• Dual-detergent metering
• Real-time detergent mixing
• Dual-brush liquid supply
• Fluid-flow control

 

Kamoer can also support pump selection and customization based on required flow, pressure, connection type, control method, detergent compatibility, installation space, and daily operating time.