Submersible deep well pump manufactured by China factory for borehole water extraction and irrigation
QJ Series Submersible Deep Well Pump

Centrifugal Pump

QJ Series Submersible Deep Well Pump

The QJ series is a submersible deep well pump designed for high-efficiency clean water extraction from deep wells, boreholes, and reservoirs. Flow up to 500m³/h, head up to 600m, power up to 160kW. Materials include cast iron and 201/304/316 stainless steel. Ideal for farmland irrigation, rural water supply, industrial water intake, and geothermal water (40°C with QJR version). ISO certified.
  • OEM
  • Factory Direct Supply
  • ISO9001 Certified
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Overview

Product Overview

Product Description

QJ Series Submersible Pump – Fully Submerged, Silent, Maintenance-Free Below Ground

Thrust bearing block handles high axial loads from deep lifts up to 600m. Water-filled or oil-filled motor options. Multistage impeller stack provides high pressure. Sand-resistant bearings for abrasive well conditions. Built-in check valve prevents backflow. Stainless steel screen protects inlet from debris. Submersible cable with water-blocking technology.

KEY FEATURES

  • High Head Capability: Multistage design delivers up to 600m head, suitable for deep well extraction from significant depths.
  • Submersible Operation: Pump and motor operate fully submerged, eliminating suction lift limitations and priming requirements.
  • Quiet & No Surface Footprint: Silent operation below ground; only a small discharge head above surface – ideal for residential areas.
  • Sand-Resistant Construction: Hardened stainless steel bearings and replaceable wear parts extend service life in sandy well conditions.
  • Hot Water Version Available: QJR series variant handles geothermal water up to 40°C for specialized applications.

Specifications

Technical Parameters

Parameter Specification Parameter Specification
Product Name QJ Series Submersible Deep Well Pump Model QJ
Category Submersible Deep Well Pump Flow Rate 2 - 500 m³/h
Head 15 - 600 m Power 0.37 - 160 kW
Speed 2850 rpm Voltage 220 V / 380V V
Suction & Discharge Diameter 40 - 250 mm Pump Body Material Cast Iron / 201 / 304 / 316 Stainless Steel
Seal Type Mechanical Seal Liquid Temperature Range ≤ 20 (Standard) / ≤ 40 (Hot water version – QJR) ℃
Liquid Type Clean Water Installation Type Vertical (Submersible)
Certification ISO9001 / ISO14001 / ISO45001

Custom models available upon request

Manufacturing

Precision engineering, advanced facilities.

Certifications

Global certifications for reliable performance.

OEM/ODM

Tailor-made pumps for your specifications.

Packaging

Robust export packaging for safe delivery.

Use Cases

Applications

Reliable Deep Well Water Extraction for Agriculture, Domestic, Industrial & Geothermal Use The QJ series submersible deep well pump is designed for continuous operation in boreholes and wells, delivering high-lift clean water efficiently and quietly.

  • Agricultural Irrigation

    Ideal for deep well water extraction for farmland irrigation, crop sprinklers, orchard watering, and pasture drainage.

  • Rural & Domestic Water Supply

    Perfect for villages, small towns, and residential communities requiring elevated water pressure or water tower filling.

  • Industrial Water Intake

    Reliable for factory process water, cooling tower make-up, mine dewatering, and off-shore platform fresh water supply.

  • Water Conservancy Projects

    Suitable for reservoir pumping, river intake, water diversion schemes, and fish pond aeration/water exchange.

  • Geothermal & Hot Springs (QJR Variant)

    Our QJR hot water version delivers up to 40°C geothermal water for greenhouse heating, hot spring supply, and district heating applications.

Support

Frequently Asked Questions

What is the maximum recommended well depth for the QJ pump?
The QJ series can handle pumping depths (vertical lift) up to 600 meters, depending on the model and flow rate. However, please note that the motor must remain submerged to provide cooling. The pump is typically installed 20-50 meters below the dynamic water level to ensure proper cooling and stable operation.
What is the difference between water-filled and oil-filled submersible motors?
Water-filled motors use a water-lubricated bearing system and are more environmentally friendly (no oil leakage risk). Oil-filled motors generally offer better heat dissipation and higher efficiency for deeper or higher power applications. We can recommend based on your well depth, power requirement, and local environmental regulations.
Can the QJ pump handle sandy or slightly abrasive well water?
The standard QJ pump can tolerate minor sand content (up to 0.1% by weight). For wells with higher sand content, we recommend our heavy‑duty version with hardened stainless steel bearings, wear‑resistant impellers, and a sand‑shielding screen. Please provide your well sand analysis for proper selection.
What is the standard installation kit included with the pump?
Each QJ pump is supplied with a complete installation package including: submersible motor cable (length specified per well depth), stainless steel lifting cable, pipeline connectors, and a check valve. A surface control panel (soft starter optional) is also available. Please confirm your installation depth for correct cable and pipe sizing.
Is there a special version for hot geothermal water (above 20°C)?
Yes. Our QJR series is specifically designed for hot water up to 40°C, featuring upgraded motor insulation, heat‑resistant bearing oil, and EPDM elastomers. For geothermal temperatures above 40°C, please consult our engineering team for a customized solution.

Have more questions? Our technical team is ready to help you select the right pump model.

Need Help Selecting the Right Pump?

Our engineering team will provide a professional selection recommendation within 24 hours based on your specific requirements.

Contact Information

WeChat: +86-13952764345
Address Industrial Park
Manufacturing District, China

What We Need

Flow Rate Required Specify your required flow rate (m³/h)
Total Head Needed Required pumping head (m)
Liquid Type Type of liquid to be pumped
Solid Particle Size Maximum solid size (mm)

Response Time

24-48h

Technical recommendations and quotations during business days

Our experienced engineers will analyze your application and provide detailed pump selection with complete technical specifications and pricing.

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