Products - Guangzhou Sanjing Electric Co., Ltd.

Founded in 2005, SAJ Electric specializes in providing users with safer, more efficient, and higher-yield all-scenario smart energy storage solutions that integrate power generation, power storage, power consumption, and energy operation services, as well as industrial automation products and solutions. Through our cutting-edge battery management, energy conversion, energy storage equipment integration, smart energy storage management, and smart energy storage operation, we add greater value to energy storage. We serve partners and end-users who recognize professional brands and smart management, and are committed to becoming a global leader in smart energy storage.

Types of Industrial Automation

 PC20 Residential Backpack-type Pump Controller

 PC30 Multifunctional Pump Controller

 PC40 Industrial Water Equipment Controller

 PDH30 C&I Backpack-type Pump Controller

 PDM30 Residential Backpack-type Pump Controller

 PDG10 Industrial Cabinet Mounted Pump Controller

Pump Control VFD

Ideal for water systems, SAJ Pump Control VFDs ensure efficient flow management, reduced energy consumption, and extended pump life for municipal and industrial applications.
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 MC20 Multifunction Variable Frequency Drive

 MC30 High-Performance Variable Frequency Drive

 VM1000B High Performance Variable Frequency Drive

 VM600G Compact Variable Frequency Drive

General Control VFD

SAJ General Control VFDs optimize motor operations across industries, delivering precise speed regulation, energy savings, and enhanced productivity for diverse industrial applications.
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 SC10 Solar Water Pump Controller

 PDS33 Cabinet Mounted Solar Pump Controller

 PDS51 High Protection Solar Pump Controller

Solar Pump Control VFD

SAJ Solar Pump VFDs harness renewable energy for agricultural and remote water supply, offering reliable, eco-friendly pumping with maximum efficiency.
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 Expansion Card

Accessories

Complete your setup with SAJ accessories, including braking resistors and filters, to enhance performance, protection, and connectivity of your VFD systems.
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Key Benefits of SAJ’s VFD & Controller Solutions

01

Enhanced Energy Efficiency & Cost Savings
02

Precision Control for Industrial Automation
03

Reliability & Extended Equipment Lifespan
04

Smart Energy Integration & IoT Compatibility
05

Global Expertise & Customized Solutions

Enhanced Energy Efficiency & Cost Savings

SAJ’s VFDs optimize motor performance, reducing energy consumption by up to 50%, significantly lowering operational costs and supporting sustainable energy management in line with our green mission.

Precision Control for Industrial Automation

Our advanced motor controllers ensure smooth acceleration, deceleration, and torque control, improving productivity in manufacturing, HVAC, and water treatment systems with smart automation.

Reliability & Extended Equipment Lifespan

Built with high-quality components and backed by 30+ patents, SAJ’s VFDs minimize wear and tear on motors, reducing downtime and maintenance costs for long-term reliability.

Smart Energy Integration & IoT Compatibility

Seamlessly integrate with SAJ’s smart energy storage and management platforms (eSAJ, Elekeeper) for real-time monitoring, remote control, and data-driven optimization in industrial and commercial applications.

Global Expertise & Customized Solutions

With 20+ years in motor control and energy storage, SAJ offers tailored VFD solutions for 85+ markets, supported by 3 R&D centers and localized technical service for distributors worldwide.

01

Enhanced Energy Efficiency & Cost Savings

SAJ’s VFDs optimize motor performance, reducing energy consumption by up to 50%, significantly lowering operational costs and supporting sustainable energy management in line with our green mission.
02

Precision Control for Industrial Automation

Our advanced motor controllers ensure smooth acceleration, deceleration, and torque control, improving productivity in manufacturing, HVAC, and water treatment systems with smart automation.
03

Reliability & Extended Equipment Lifespan

Built with high-quality components and backed by 30+ patents, SAJ’s VFDs minimize wear and tear on motors, reducing downtime and maintenance costs for long-term reliability.
04

Smart Energy Integration & IoT Compatibility

Seamlessly integrate with SAJ’s smart energy storage and management platforms (eSAJ, Elekeeper) for real-time monitoring, remote control, and data-driven optimization in industrial and commercial applications.
05

Global Expertise & Customized Solutions

With 20+ years in motor control and energy storage, SAJ offers tailored VFD solutions for 85+ markets, supported by 3 R&D centers and localized technical service for distributors worldwide.

Testimonials of SAJ VFD & Controllers



SAJ’s VFD solutions transformed our motor control system, cutting energy costs by 35% while improving production line stability. Their technical support was exceptional—highly recommended for industrial automation!

Louis

the United Kingdom


After installing SAJ’s VFDs in our commercial HVAC systems, we saw a 40% drop in motor failures and a 25% reduction in electricity bills. The ROI was clear within the first year!

James

Denmark


SAJ’s rugged VFD controllers have handled 24/7 operation in high-humidity environments for 3+ years with zero failures. Their durability and efficiency outperformed competitors’ models.

Jack

Greece