Information to collect before comparing models
- Track gauge, rail condition, minimum curve radius and the condition of switches and crossings.
- Maximum operating gradient, route length, loading points and expected stops per cycle.
- Maximum train mass, payload, number and type of mine cars, and whether loaded and empty directions differ.
- Required trips per shift, operating hours, available charging time and expected peak demand.
- Available power infrastructure, including trolley supply or battery charging capability.
- Underground clearance, ventilation, temperature, water, dust and any classified hazardous environment.
- Required braking arrangement, signalling, communications and interfaces with existing equipment.
- Local regulations, mine rules and project-specific certification or acceptance requirements.
A practical selection sequence
- Document the route and train duty instead of starting from a preferred model.
- Estimate running and starting resistance for the loaded train, including gradient and curves.
- Compare the required tractive effort, adhesion, speed and braking performance with a safety margin appropriate to the project.
- Compare battery, lithium-battery and trolley power around infrastructure, shift pattern, charging and maintenance constraints.
- Confirm gauge, couplers, braking, electrical interfaces, clearances, documentation and acceptance tests before ordering.
What should be recorded in the technical agreement
- The agreed route and duty assumptions used for selection.
- Model, gauge, rated load assumptions, speed range, tractive effort and braking configuration.
- Battery or power-supply configuration and the operating conditions on which endurance is based.
- Included mine cars, couplers, chargers, controls, spare parts, manuals and training.
- Inspection, test, delivery and acceptance responsibilities for both supplier and buyer.
Frequently asked questions
Should a mining locomotive be selected only by tonnage or motor power?
No. Tonnage and motor power are useful reference values, but route gradient, curves, rail condition, train resistance, adhesion, target speed, braking and duty cycle also affect selection.
When is a battery locomotive usually considered?
Battery locomotives are commonly considered where an overhead supply is unavailable or undesirable. The comparison should include required operating time, charging windows, charger capacity, battery handling, ventilation and lifecycle maintenance.
When is a trolley locomotive usually considered?
Trolley locomotives are commonly considered for repeat haulage on routes where an overhead power system can be installed and maintained. Infrastructure, current collection, route coverage and power interruptions must be evaluated.
Can track gauge be confirmed from the locomotive name alone?
No. Gauge must be stated explicitly and checked together with wheel profile, rail, switches, clearances, mine cars and couplers.
What information is most useful for a project quotation?
Provide gauge, route length, maximum gradient, curve radius, train mass or mine-car details, trips per shift, power availability, operating environment, required certification and destination country.
Need a project-specific equipment discussion?
Send the route, gauge, train, duty cycle, power and operating-environment information so the requirements can be reviewed against a specific configuration.
Contact ShaoLi