The Doyin 4SF5-230-4000W AD is a heavy-industry-grade 5.5HP AC/DC hybrid submersible borehole pump engineered for extreme-depth water extraction. With a maximum head of 345 metres and a steady output of 8,400 litres per hour, it is built for the most demanding deep-borehole installations in large agricultural, commercial, and industrial environments — delivering high-volume water reliably on either solar or grid power.

Key Features & Benefits

• 345M Maximum Head — Handles some of the deepest borehole installations encountered in commercial and industrial settings, maintaining consistent flow and pressure throughout the operating range
• 8,400 L/h Consistent Output — Delivers high-volume water supply to meet the demands of large irrigation systems, industrial processes, and high-occupancy water networks
• 5.5HP Brushless Motor — Industrial-grade power output with high efficiency, low heat generation, and a long service life under sustained heavy-duty operation
• AC/DC Hybrid Operation — Switches seamlessly between solar DC and AC grid or generator power, providing 24-hour uninterrupted water supply regardless of energy source availability
• Stainless Steel Construction — Premium corrosion-resistant body built for continuous long-term submersible operation at extreme borehole depths
• 10-Panel Solar Compatible — Designed to pair with a 10-panel or larger solar array, enabling powerful off-grid water extraction at scale
• Multistage Deep-Well Design — Purpose-engineered for high-pressure, extreme-depth pumping applications, maintaining stable performance under variable load and depth conditions

Why Choose the Doyin 4SF5-230-4000W AD?

• Entry point to the high-power 4SF5 industrial series — purpose-built for boreholes beyond the reach of standard submersible pumps
• 345M head capacity addresses the deepest boreholes found in arid, high-altitude, or geologically challenging terrains
• AC/DC hybrid technology provides complete energy flexibility — no single point of failure in your water supply
• Proven Doyin stainless steel engineering built and tested for sustained performance under the harshest borehole conditions
• Significantly higher depth reach than any model in the 4SDS or 4SPS series, making it the right choice when other pumps fall short
• Compatible with HDPE/PPR high-pressure piping and non-return valve (NRV) for a professional, heavy-duty installation

Applications

Deep Commercial Boreholes — Designed for boreholes exceeding 200 metres where standard pumps cannot sustain reliable output — the definitive solution for extreme-depth water extraction.

Large-Scale Agricultural Irrigation — Powers extensive irrigation infrastructure on large commercial farms, ranches, and agribusiness operations requiring high daily water throughput from deep sources.

Industrial Water Supply — Provides bulk water for manufacturing plants, construction sites, mining operations, and other industrial facilities drawing from deep underground sources.

Arid and Semi-Arid Regions — Ideal for water supply projects in dry regions where water tables are exceptionally deep and reliable extraction requires high-power, high-lift capability.

Large Community Water Schemes — Serves as a primary extraction pump for large rural or peri-urban community water projects with deep boreholes and significant daily demand.

Off-Grid Industrial Solar Water Systems — A high-power solar pumping solution for large off-grid installations requiring extreme depth reach and high-volume daily output without grid dependency.