BDX Trackless Electric Flat Car for Heavy Load Transport

Product Introduction

The BDX series trackless flat car, also known as the BDX battery-powered trackless flat car, is available in the following models and load capacities: BDX-5-1, BDX-10-1, BDX-15-1, BDX-20-1, BDX-25-1, BDX-30-1, BDX-40-1, BDX-50-1, BDX-60-1, BDX-75-1, and BDX-100-1. Powered by a battery pack and driven by a DC motor with pneumatic tires, the BDX series operates freely on concrete floors without the need for rails. Its front-wheel steering design delivers excellent maneuverability.

The BDX trackless flat car is designed for heavy-duty material handling applications with load capacities ranging from 5t to 100t. Compared to the BWP series, the BDX series features mechanical front-wheel steering (on smaller models) or electro-hydraulic power steering (on larger models), providing a driving experience closer to that of conventional vehicles. Table height varies from 650 to 1050mm depending on the model, facilitating loading and unloading with forklifts and hoisting equipment. With a minimum turning radius of 4 to 9m, it is well suited for in-workshop and short-distance intra-plant transport.

The key advantage of this series lies in its elimination of rail infrastructure — no embedded rail foundations are required in the factory building, and the car can simply be driven away when relocating. Battery power frees it from cable constraints, making it ideal for material transfer across workshops and plant areas. Optional add-ons include a hydraulic lift platform, V-trough supports, remote control system, and magnetic navigation for automated travel.

Product Gallery

Models & Specifications

• Product Name: BDX Trackless Electric Flat Car
• Also Known As: Trackless flat car, battery-powered trackless flat car, BDX floor car
• Model & Specification: BDX series (BDX-5-1 to BDX-100-1)
• Category: Ground conveying machinery
• Power Supply: Battery pack (DC 48V~110V)
• Motor Type: Series-wound / separately-excited DC motor
• Travelling Mechanism: Pneumatic tires / solid tires
• Control Mode: Stepless speed control
• Operation Mode: Cab operation / pendant control / remote control
• Steering System: Front-wheel mechanical steering / electro-hydraulic power steering
• Turning Radius: 4~9m
• Place of Origin: Changyuan, Xinxiang, Henan
• Customization: Non-standard designs available
• Production Lead Time: 15~25 days
• Supply Coverage: Nationwide
• After-Sales Service: 1-year warranty

Product Features

• Rail-Free Design: Equipped with pneumatic tires, the car operates on concrete or asphalt surfaces. No embedded rail foundations are needed, reducing factory retrofit costs and eliminating relocation expenses.
• Wide Load Range: 11 models covering 5t to 100t, from light-duty workshop distribution (5t) to heavy cast steel component transport (100t).
• Dual Cab/Remote Operation: Standard cab operation (steering wheel + pedals) with optional remote control. The cab offers a wide field of vision and a driving experience similar to a forklift, allowing new operators to get up to speed quickly.
• Agile Steering: Front-wheel mechanical steering / electro-hydraulic power steering with a minimum turning radius of just 4m (BDX-5-1); even the 100t model requires only 9m of turning space.
• Reliable Endurance: Lead-acid or LiFePO4 battery packs with an intelligent charger that automatically cuts off when fully charged. Charging time is 4 to 8 hours, with battery swap options available.
• Braking Safety: Dual protection via hydraulic drum service brake and electromagnetic fail-safe parking brake. The parking brake engages automatically upon power loss to prevent rolling on slopes.
• Easy Maintenance: Tire replacement interval of 6 to 12 months; battery cycle life of 800 cycles (lead-acid) / 2000 cycles (LiFePO4). Routine checks only require monitoring tire pressure and brake fluid.

Working Principle

The working principle of the BDX trackless electric flat car is based on the energy chain of "battery power supply → electrical speed control → DC motor drive → tire traction":

Step 1: Power Supply. The on-board battery pack (DC 48V~110V) provides the power source. Located in the battery compartment beneath the frame, it connects to the electrical control system via quick-connect plugs.

Step 2: Electrical Speed Control. The MOSFET/IGBT controller receives operating commands (from the cab pedal or remote control) and delivers PWM stepless speed control to the DC motor. The controller features overcurrent, overtemperature, and undervoltage protection.

Step 3: Mechanical Transmission. The DC motor delivers power to the drive axle (main reducer + differential + half shafts), which increases torque while reducing speed before transmitting it to the drive wheels to propel the car.

Step 4: Steering & Braking. Steering is achieved by controlling front-wheel deflection via the steering wheel or remote control. The hydraulic drum brake applies braking force to stop the car, while the electromagnetic parking brake automatically locks upon power loss.

Product Structure

The BDX trackless electric flat car consists of the following major structural components:

• Frame (Load Platform): Box-section structure welded from Q235B steel plate (≈S235JR), reinforced with H-Beam main girders, with graduated designs for 5t to 100t capacities.
• Battery Pack: Maintenance-free lead-acid or LiFePO4 batteries, DC 48V~110V, housed in the battery compartment beneath the frame, supporting 5-minute battery swaps.
• DC Motor: Series-wound or separately-excited DC motor with power ratings from 1.5kW to 2×11kW. Series-wound motors deliver high starting torque, ideal for heavy-load starts.
• Drive Axle: Main reducer + differential + half shafts. Models rated 50t and above use a heavy-duty marine-type rear axle for superior load-bearing capacity.
• Electrical Control System: MOSFET/IGBT PWM controller with stepless speed control and multiple protection features including overcurrent, overtemperature, and undervoltage.
• Steering System: Front-wheel steering with recirculating-ball mechanical steering on smaller models and electro-hydraulic power steering on larger models.
• Braking System: Hydraulic drum service brake plus electromagnetic fail-safe brake for dual protection.
• Tires: Pneumatic tires as standard, with optional solid tires or polyurethane-coated wheels.

Technical Parameters

The table below lists the standard technical specifications for the BDX trackless electric flat car, covering 11 models from 5t to 100t.

BDX Trackless Electric Flat Car — Technical Specification Table

Typical Applications

• Heavy Mold / Casting Transfer: The 50t–100t class handles large molds, cast steel parts, and forging pieces. Loading and unloading can be done with forklifts or overhead cranes.
• Steel Structure Workshops: No rail design required, making it ideal for internal material transport in steel structure factory buildings (without embedded crane rail foundations).
• Cross-Workshop Material Handling: Not restricted by rails, the cart can move freely between multiple workshop bays for cross-area material delivery.
• Outdoor Yards / Docks: Pneumatic tires suit outdoor concrete surfaces, perfect for short-distance transfer of plates, pipes, and steel structural components in storage yards.
• Assembly Lines: The 5t–20t class delivers parts between assembly line stations, with optional magnetic navigation for automated travel.
• Shipyard Section Transfer: Handles large hull sections within the factory building, often used in multi-cart configurations.

Selection Guide

• Load Capacity: Select based on maximum material weight plus a 20% margin. For example, BDX-10-1 is recommended for transferring 8t molds.
• Table Dimensions: Standard sizes range from 3600×2200mm to 6500×3500mm. Extended table surfaces are available for long workpieces.
• Battery Type: Lead-acid batteries (economical) suit single-shift operations; LiFePO4 batteries (longer lifespan) are ideal for multi-shift schedules.
• Tire Options: Pneumatic tires offer better shock absorption; solid tires resist punctures; polyurethane wheels are non-marking and floor-friendly.
• Operation Mode: Choose remote control for fixed production line routes; choose cab operation for varied transport scenarios.
• Automation: For automated navigation, choose magnetic navigation (cost-effective) or laser SLAM (high accuracy, ±10mm).

Operating Instructions

• After delivery, check tire pressure (0.4–0.6MPa), battery level, and braking function.
• Charging: Connect the charger; it automatically detects full charge and cuts off power. Lead-acid takes 6–8 hours; LiFePO4 takes 4–6 hours.
• Startup: In cab mode, turn the key on, select direction, and press the accelerator pedal; in remote mode, power on and use the control grip.
• Driving: Keep the steering wheel centered when driving straight; reduce speed to ≤5m/min when turning. Avoid sudden acceleration or hard braking.
• Braking: Release the accelerator pedal and press the brake pedal to stop; after power-off, the electromagnetic brake engages automatically.
• Safety: No overloading, no carrying passengers, and no lateral driving on slopes. Stop immediately if abnormal noise occurs.

Why Choose Kelude Heavy Industry

Service & Support

Kelude Heavy Industry provides full life-cycle support for BDX trackless electric flat car users: free on-site survey and proposal before purchase, full-process supervision and progress updates during manufacturing, and after-sales support including 1-year warranty, on-site response within 48 hours, and lifetime technical consultation. Wear parts such as batteries, controllers, drive axle assemblies, brake shoes, and tires are kept in stock and can be delivered within 3 days.

FAQ