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Coal Mine AC Vacuum Qjr Explosion-Proof Soft Starter
Negotiable
1 Piece
Product profile
Customization
AvailableCertification
ISO9001, CCCProtection
Corrosion ResistanceModel NO.
QJR-800 1140(660)-2Installation
VerticalHousing
Cast IronTransport Package
Wooden BoxSpecification
1430*1155*811mmTrademark
Wantai GroupOrigin
ChinaHS Code
8504231100Production Capacity
1000sets/YearKey features
Explosion-Proof Design: Suitable for mines with explosive gas and coal dust, ensuring safety in hazardous environments.
Siemens PLC Control: Core control unit enables stable performance, centralized networking, and Profibus-DP support.
Flexible Parameter Setting: Adjustable starting current and torque curves optimize performance for different load conditions.
Intrinsically Safe Circuit: Pilot circuit design prevents spontaneous starting accidents caused by short circuits or grounding.
Advanced HMI Interface: 7-inch embedded display provides real-time monitoring of voltage, current, and fault status.
Drawer Plug-in Structure: Modular design ensures good interchangeability, consistency, and easy maintenance.
Dual Protection System: Combines soft starting and direct starting modes for reliable motor operation.
OEM/ODM Services: Customization services available for branding and specific technical requirements.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2009-09-02 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤4.90h CertifiedTerms of Payment: LC, T/T, PayPal, etc.
AI-Powered supplier vetting
SummaryHuainan Wantai Electric Co., Ltd. is a China-based limited company established in 2009, operating in mining electronics and related electrical equipment. The supplier reports ISO9001:2015, ISO14001:2015, and OHSAS18001:2007 certifications, three government-recognized R&D institutions, and 57 years of cumulative R&D engineer experience. Its stated capabilities include development, production, sales, and service, with products such as mine soft starters, feeder switches, lamps, automation systems, switch cabinets, and protection devices. Evidence also indicates a manufacturing plant of 41,708 m², regional sales coverage across multiple Chinese provinces, and dedicated sales and post-sales personnel. However, the provided information does not establish detailed financial strength, customer-specific case studies, or explicit customization processes.
Supplier typeThe supplier is identified as Huainan Wantai Electric Co., Ltd., a Chinese limited company based in Anhui. Its stated activities combine development, production, sales, and service for mining electronic and electrical products, although another record describes its company nature as a trading company.
CertificationsThe supplier explicitly reports ISO9001:2015 quality certification, ISO14001:2015 environmental certification, and OHSAS18001:2007 certification, with ISO9001 also referenced in its company description. These certifications support documented quality, environmental, and occupational health and safety management systems.
After-Sales capabilityThe supplier states that it has experienced sales and post-sales members and describes its business as integrating development, production, sales, and service. This supports the existence of after-sales resources, but no response-time, service-network, spare-parts, or technical-support metrics are provided.
R&D capabilityThe supplier reports three government-recognized R&D institutions and 57 years of total R&D engineer experience. Its stated product-development goal is to deliver safer, more energy-saving, and more efficient system solutions, indicating established R&D resources and innovation orientation.
Production capacityThe supplier reports 371 employees in one company record and 500 employees in a company description, a 41,708 m² manufacturing plant, and an integrated development and production operation. It also claims ready production facilities and broad mining-electronics product coverage, supporting substantial production capability, although verified capacity and output figures are not provided.
Product Q&A
Q:What is the rated voltage for this starter?
A:
The rated operational voltage is 1140V or 660V AC.
Q:What is the maximum motor current supported?
A:
It supports three-phase squirrel cage motors with a current below 400A per unit, with a rated operational current of 800A.
Q:Can the starting parameters be adjusted?
A:
Yes, starting parameters such as current and torque can be flexibly set according to different loads.
Q:What communication protocols are supported?
A:
The device supports Profibus-DP and industrial Ethernet for centralized control with the ground network.
Q:How is the device cooled?
A:
It uses air convective cooling as the cooling-down method.
Send Inquiry
*To:
Huainan Wantai Electric Co., Ltd.
Huainan Wantai Electric Co., Ltd.*Content:
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