The 140m Doyin 4SPS4.5-1100W DC Borehole Pump is engineered for demanding deep borehole applications where high lifting capacity, dependable flow and long-term durability are essential. As part of Doyin’s premium Stainless Steel Impeller Series, this model is built with precision-machined stainless steel impeller stages that provide superior resistance to corrosion, wear and performance degradation compared to ordinary impeller pumps.

Powered by a 1.1kW (1.5HP) brushless DC permanent magnet motor, the pump delivers up to 4.5m³/h (4,500 litres per hour) while achieving an impressive 140-metre maximum head. The multi-stage hydraulic system maintains excellent pressure stability, making it ideal for deep boreholes supplying elevated storage tanks, irrigation systems, commercial buildings and institutions.

For reliable daily performance, Macire recommends pairing this model with 3 × 550W high-efficiency solar panels. This solar configuration provides sufficient energy for consistent pumping throughout the day while eliminating electricity and fuel costs.

Designed for customers seeking maximum reliability and lower lifetime maintenance, the 4SPS4.5-1100W is an excellent solution for professional solar water pumping installations.

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Why Choose the Stainless Steel Impeller Series?

The Doyin 4SPS Series is designed for users who require higher durability and longer service life than conventional borehole pumps.

Key Advantages

• Precision stainless steel impeller stages
• Superior wear resistance during continuous operation
• Improved hydraulic efficiency
• Excellent corrosion resistance
• Stable pressure delivery
• Lower maintenance requirements
• Longer operational lifespan
• Ideal for intensive daily pumping

Technical Specifications

Key Features

• Premium stainless steel multi-stage impeller assembly
• Powerful 1.1kW (1.5HP) brushless DC motor
• Pumps up to 4,500 litres per hour
• Delivers water up to 140 metres
• Excellent pressure for elevated storage tanks
• Designed for medium and deep boreholes
• Improved resistance to corrosion and abrasive water
• Higher hydraulic efficiency than ordinary impeller models
• Smooth and quiet operation
• Low maintenance design
• Recommended for 3 × 550W solar panels
• Genuine Doyin quality supplied by Macire

Applications

🏠 Deep Domestic Boreholes

Provides reliable household water supply where high delivery head is required.

🚜 Commercial Irrigation

Suitable for drip irrigation, sprinkler systems and horticultural farming.

🐄 Dairy & Livestock Farms

Maintains dependable water supply for livestock watering and farm storage tanks.

🏢 Commercial Buildings

Ideal for workshops, hotels, lodges and industrial premises with independent boreholes.

🏫 Schools & Institutions

Reliable water supply for schools, churches, hospitals and community facilities.

💧 Elevated Water Storage

Excellent for pumping water to high-level tanks where pressure is essential.

Installation Recommendations

For optimum system performance, Macire recommends:

• 3 × 550W high-efficiency solar panels
• Genuine MPPT solar pump controller
• HDPE rising main
• Stainless steel safety cable
• Borehole well cap
• Non-return valve
• Dry-run protection
• Surge protection

Professional installation maximises efficiency and extends pump life.

Maintenance

• Clean solar panels regularly.
• Inspect all cable connections.
• Check pipework for leaks.
• Monitor controller operation.
• Avoid dry running.
• Flush excessive sand where necessary.
• Service the system periodically for optimum efficiency.

Performance Guide

Actual performance varies depending on solar irradiance, borehole conditions and installation.

Frequently Asked Questions

Why is the stainless steel impeller better?

It offers improved wear resistance, maintains hydraulic efficiency for longer and performs better in demanding borehole conditions.

How many solar panels are recommended?

3 × 550W solar panels are recommended for optimum daily performance.

Can the pump run directly from solar panels?

Yes. When used with a compatible MPPT DC pump controller, it operates directly from solar energy without batteries.

Is it suitable for commercial installations?

Yes. Its high head and stable flow make it suitable for commercial, agricultural and institutional water systems.

Does Macire provide complete pumping systems?

Yes. Macire supplies pumps, controllers, solar panels, accessories, installation guidance and nationwide delivery.

Why Buy from Macire?

• Genuine Doyin products
• Professional pump sizing
• Correct solar array recommendations
• Nationwide delivery
• Technical support before and after purchase
• Genuine accessories and spare parts
• Reliable after-sales service
• Trusted supplier of solar pumping solutions in Kenya

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