Shandong Rongli Power Mechanical And Electrical Technology Co., Ltd. : Your professional Mining electromechanical product manufacturer in China
Shandong Rongli Power Mechanical And Electrical Technology Co., Ltd., established in 2013, is a professional manufacturer of mining electromechanical products. From its initial products such as mining energy-saving lamps and explosion-proof switches, the company has evolved to offer advanced systems including automatic dust suppression devices, electronic control systems, and environmentally friendly production lines.
Wide Product Range
We supply a comprehensive range of mining equipment, including fully wireless dust suppression spray systems, explosion-proof switches, energy-saving lamps, and signaling devices.
Versatile Applications
Our products are designed for critical mining applications, such as automated dust suppression in tunnels and transfer points, ventilation control via automatic dampers, and personnel/vehicle detection for safety monitoring.
Advanced Production Equipment
We possess advanced production equipment for mining winches, mining rail vehicles, and mining dampers, including manufacturing and welding equipment.
Guaranteed Quality
All our equipment holds the necessary mining safety certificates, explosion-proof certificates, and CCC certification.
Introduction
Mining voice and visual audible alarm systems are warning devices used for safety alerts and accident alarms in mining operation areas. The system uses sound signals, voice prompts, and flashing lights to deliver equipment operation prompts or safety warnings to workers.
Specifications
|
Product name |
Mining voice and visual audible alarm systems |
|
Dual Voltage |
12/24 VDC |
|
Temperature range |
-40°C to +85°C (-40°F to +185°F) |
|
Approvals |
SAE J994 Type A (AMECA), UL, CE, e |
|
Origin |
China |

Explosion-proof housing
Integrated sound and light alarm device
Supports pre-recorded voice message playback
12V/24V DC power input interface
Temperature-resistant electronic components (-40℃ to +85℃)
Can be linked with conveyor equipment, vehicles, or control systems to trigger alarms
In underground coal mine work areas, this information is used for conveyor start-up alerts, equipment operation warnings, and emergency evacuation alarms.
In underground metal mine mining areas, this information is used for safety reminders in mining equipment operation areas, transportation routes, and equipment maintenance areas.
In mine transportation equipment, this information is used for mine vehicle reversing alerts, loading area operation warnings, and transportation route safety reminders.
In mineral processing and beneficiation plants, this information is used for operation reminders in crushing equipment, conveying systems, and equipment maintenance areas.

Quality Control
Explosion-proof Structure Inspection
Inspect the gaps and widths of the explosion-proof enclosure mating surfaces. Use calipers and feeler gauges to measure the dimensions of the explosion-proof mating surfaces and check the installation status of the sealing rings.
Sound Pressure Level Test
Use a sound level meter to measure the sound pressure level of the alarm at a specified distance to check whether the output sound of the buzzer or siren meets the design parameters.
Flashlight Performance Test
Use a light intensity tester to test the brightness of the warning light and measure the flashing frequency using a timing device.
Electrical Safety Inspection
Use a multimeter to test the power input voltage and electrical connection status, and use an insulation resistance tester to test the circuit insulation performance.
Certificate





FAQ
As one of the leading mining voice and visual audible alarm systems manufacturers and suppliers in China, we also support customized service. Please feel free to buy mining voice and visual audible alarm systems in stock here and get free sample from our factory. Quality products and low price are available.
mining voice and visual audible alarm systems, mining sensor, Mining Safety Voice Alarm
