What is the delivery time for customized products?

For customized products, the delivery time needs to be communicated with customer service.

What are the terms of payment?

Payment terms include LC, T/T, D/P, PayPal, Western Union, Small-amount payment, and Money Gram.

Is OEM/ODM service available?

Yes, OEM/ODM is supported. Customers with customized needs can contact us directly.

Four-Quadrant

Name: 660V/1140V 2*55kw~4*630kw Mining Flameproof VFD and Soft Starter Panel Two-Quadrant/Four-Quadrant
Brand: Shandong Excellent Electric Co., Ltd.
SKU: 1986472021

Shandong, ChinaShandong Excellent Electric Co., Ltd.

660V/1140V 2*55kw~4*630kw Mining Flameproof VFD and Soft Starter Panel Two-Quadrant/Four-Quadrant

US$500.00-10,000.00

1 Piece

Product profile

Customization

Available

Application

High Frequency Converter Transducer

Output Type

Variable Frequency + Power Frequency Control

Model NO.

BPQJ

Principle of Work

Vector Control Transducer

Switch Mode

PWM Control

Main Circuit Type

Voltage

Voltage of Power Supply

as Needed

Link of Transformation

AC-DC-AC Variable-Frequency Drive

Nature of DC Power

Voltage Variable-Frequency Drive

Function

Constant Torque Universal Type

Brand

Excellent

Rated Voltage

660V/1140V

Power Range

2*55kw~2*250kw/2*55kw~4*630kw

Cooling Method

Water-Cooling/Air-Cooling

Run Mode

Two-Quadrants/Four-Quadrants

OEM/ODM

for Customization Inquiries, Please Contact Us.

Transport Package

Wooden Box

Origin

China

Key features

Customizable Power Range: Power range customizable from 2x55kW to 4x630kW based on customer needs.

Dual Cooling Methods: Supports both water-cooling and air-cooling options for flexible application.

Comprehensive Protection: Features overload, overvoltage, short circuit, and emergency stop protections.

Flexible Run Modes: Available in Two-Quadrants or Four-Quadrants operation modes.

OEM/ODM Support: Full OEM and ODM services available for customized product requirements.

Advanced Control Principle: Utilizes Vector Control Transducer with PWM Control switch mode.

High Voltage Rating: Rated voltage supports 660V and 1140V for mining applications.

Quality Assurance: Rigorous testing at raw material, production, and shipment stages.

Company profile

Quality AssuranceProduct CertificationPatents AwardedFull Customization

Shandong Excellent Electric Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2024-12-09Nearest Port: QingDao, SHANGHAI, SHENZHENAverage Response Time: ≤4.15h

AI-Powered supplier vetting

SummaryThe supplier is a national high-tech enterprise focused on UAV power systems, permanent-magnet electric rollers, and intelligent frequency-conversion control systems. It has broad mechanical, electrical, environmental-monitoring, software, and equipment-related business activities, with six production lines, 6–10 quality-control staff, and stated output across several product categories. It offers customization from samples and designs and reports OEM service for well-known brands. ISO9001:2015, ISO45001:2018, ISO14001, and CE certifications are identified. However, the supplier lacks a valid manufacturing-capacity contract with related subcontractors, has no overseas warehouse or showroom, and its service corrective-action and complaint-handling procedures lack written records. Its R&D capability is documented, but no SDK is available. Customer cases are not specifically identified.

Supplier typeThe supplier is described as a national high-tech enterprise engaged in R&D, manufacturing, and sales of UAV power systems, permanent-magnet synchronous electric rollers, intelligent frequency-conversion control systems, and other mechanical, electrical, software, and environmental-monitoring products. This supports classification as a specialized equipment manufacturer and technology-oriented industrial supplier.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, and ISO14001 certifications, together with CE certification capability. These certifications provide explicit evidence of quality, occupational health and safety, environmental management, and product-compliance coverage.

After-Sales capabilityThe supplier has written procedures and records for evaluating service capability and reports in-stock service capacity. However, it has no overseas warehouse or showroom, while corrective and preventive action and customer-complaint procedures exist without written records, indicating documented weaknesses in service execution and overseas support.

R&D capabilityThe supplier is identified as a national high-tech enterprise with mechanical-equipment R&D, software development, and UAV power-system development activities, and it provides OEM services for well-known brands. Nevertheless, it explicitly has no available SDK, so the evidence supports product and engineering innovation but not SDK-based integration capability.

Production capacityThe supplier operates six production lines, has 6–10 quality-control staff, reports output for mining converters, control boxes, permanent-magnet direct-drive drums, and drone motors, and states annual capacity of 800 permanent-magnet electric rollers and frequency converters. However, it has no valid manufacturing-capacity contract with related subcontractors, creating a documented capacity-management weakness.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, and minor customization. Its listed testing and production equipment, including high-voltage testing, dynamic-balance testing, press, drying, and vacuum-impregnation equipment, is consistent with the stated customization scope.