VOLTER: Battery-Powered Monorail

The Energy of the Future Underground

VOLTER is an explosion-proof battery-powered monorail designed for transporting personnel and materials in underground mines.
It combines a high level of operational performance with full compliance with environmental requirements — representing a new generation of solutions in the Becker MineTrans® system.

Quiet operation, zero exhaust emissions, and remote control capability make VOLTER ideal for methane hazard zones and all environments where safety, reliability, and operator comfort are essential.

Technical Specification

Parameter	Value
Drive type	Friction drive
Tractive force	20 kN (1 drive, up to 25 kN) / 80 kN (4 drives, up to 100 kN)
Travel speed	Up to 2.5 m/s
Battery capacity	512 V / 280 Ah (142 kWh)
Control	Operator cabin / remote (Wi-Fi / radio)
Maximum track inclination	±30°

Technology and Drive System

VOLTER is equipped with a lithium iron phosphate (LFP) battery system with a high capacity of 142 kWh, integrated with a Battery Management System (BMS) and PLC controller.

The CAN 2.0B communication system enables integration with Becker MineTrans® digital systems, while off-board charging allows fast and safe charging outside the machine.

The drive system uses BWNE electric friction drives, providing high torque, smooth speed control, and the ability to recover energy during braking.

Key Features

Zero exhaust emissions – fully electric drive enabling safe operation in methane hazard zones
Advanced BMS system – full control over battery operating parameters
Off-board charging – external charging with 100% capacity in approx. 4 hours
Industry 4.0 technology – predictive diagnostics, IoT integration, and CAN communication
Ex safety standard – explosion-proof design compliant with mining regulations
Quiet and smooth operation – improved operator comfort and reduced impact on mine infrastructure
Modular design – configuration with 1–4 operator cabins and various transport sets
Air-conditioned operator cabin – increased comfort in high temperatures and demanding underground conditions