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KPD Low-Voltage Rail Powered Transfer Cart
The KPD low-voltage rail electric flat car obtains power via rails. Its working principle relies on an on-ground step-down system, which converts 3-phase or 2-phase AC 380V power into safe 36V voltage. Electricity is fed to the conductive rails (which also serve as the running track for the flat car). Low-voltage power is transmitted to the on-board transformer system through the cart’s conductors, where voltage is boosted back to 380V or rectified to 48V DC to drive the three-phase or DC motor and propel the flat car.
The KPD low-voltage rail electric flat car supports 24-hour continuous operation. Cable-free design delivers higher safety and facilitates remote control and automated operation. It resists high temperatures and impact, and adapts to cross-transport working conditions. The cart can travel along curved and loop tracks. By adding extra step-down transformers, the traveling distance of the flat car will not be restricted.
- Simple structure, easy operation, high mechanical strength and heavy load capacity
- Excellent stability without permanent deformation
- Maximum load capacity up to 150 tons
- Capable of non-stop continuous operation with no time limit
- Three-in-one integrated drive motor, convenient for maintenance
- Soft start configuration with Schneider frequency inverter
- Multi-layer safety protection: warning alarm, anti-collision radar and travel limit switch
- Multiple control modes: handheld pendant controller, radio remote control and rocker wireless remote controller
- Customizable functions: variable-frequency startup, explosion-proof design, hydraulic lifting, rollover function, high-precision platform, fixed-point stop, scanning radar positioning, high positioning accuracy, anti-rollover structure, reinforced load-bearing, climbing capability, track turning adaptation, waterproof treatment, traverse unit and aisle fork
Four Power Supply Modes of Rail Transfer Cart
We provide four mainstream power supply modes for rail transfer carts to suit different site distances, working frequencies and environmental requirements. Each power type is mature, stable and widely applied in industrial material handling.
1. Battery Powered (KPX Series)
Adopts built-in battery pack for independent power supply. The cart operates freely with no traveling distance limit and no external cables required. It features flexible movement, easy layout and strong adaptability. It is the optimal choice for long-distance transportation, irregular running routes, and explosion-proof, flammable and explosive working environments.
2. Cable Reel Powered (KPT Series)
Equipped with an automatic cable reel to realize self-winding and unwinding during operation. This power mode provides continuous and stable voltage output with low failure rate and no charging waiting time. It is mainly applicable for short and medium-distance fixed-track transportation and high-frequency continuous operation.
3. Sliding Line Powered (KPJ Series)
Powered by sliding contact wire for real-time continuous power supply. It supports 24-hour non-stop operation without battery charging restriction. With stable power output and high working efficiency, it is widely used for factory fixed routes, high-frequency and long-time continuous handling conditions.
4. Low-Voltage Rail Powered (KPD Series)
Adopts 36V/48V safe low-voltage power supply through rails. No external cables are needed, making the site tidy and safe. This mode features excellent explosion-proof performance and strong load capacity, which is suitable for fixed-route heavy-duty transportation and standardized factory workshop handling scenarios
Parameter
| Model | KPD | KPX | KPJ | KPW |
|---|---|---|---|---|
| Max Load | 1 ton ~ 500 tons (customizable for higher loads) |
1 tons ~ 300 tons (customizable for higher loads) |
2 tons ~ 300 tons (customizable for higher loads) |
1 tons ~ 500 tons (customizable for higher loads) |
| Speed | 0 ~ 10 m/min (adjustable, depending on model,10-speed gear adjustment) | 0 ~ 20 m/min (adjustable, depending on model,10-speed gear adjustment) | 0 ~ 10 m/min (adjustable, depending on model,10-speed gear adjustment) | 0 ~ 25 m/min (adjustable, depending on model,10-speed gear adjustment) |
| Battery Type | Lead-acid battery / Lithium battery (optional) | Lithium battery / Lead-acid battery (optional) | Lithium battery / Lead-acid battery (optional) | Lithium battery / Lead-acid battery (optional) |
| Battery Capacity | 24V / 48V (customizable for other voltages) | 48V / 72V (customizable for other voltages) | 24V / 48V / 72V (customizable for other voltages) | 72V / 96V (customizable for other voltages) |
| Charging Time | 4 ~ 6 hours | 6 ~ 8 hours | 4 ~ 8 hours | 6 ~ 8 hours |
| Working Time | 8 hours (customizable for extended work hours) | 8 ~ 12 hours (customizable for extended work hours) | 6 ~ 8 hours (customizable for extended work hours) | 8 ~ 10 hours (customizable for extended work hours) |
| Turning Radius | Minimum 3 meters | Minimum 4 meters | Minimum 3 meters | Minimum 5 meters |
| Wheel Type | Rubber wheels / Polyurethane wheels / Steel wheels (optional) | Polyurethane wheels / Rubber wheels (optional) | Polyurethane wheels / Steel wheels (optional) | Polyurethane wheels / Rubber wheels (optional) |
| Control Mode | Manual / Wireless remote (optional) | Manual / Wireless remote (optional) | Manual / Wireless remote (optional) | Manual / Wireless remote (optional) |
| Safety Features | Overload protection, emergency stop, collision sensors (customizable) | Overload protection, emergency stop, anti-slip feature (customizable) | Overload protection, emergency stop, alarm system (customizable) | Overload protection, emergency stop, anti-collision system (customizable) |
| Dimensions | Length: 2m ~ 6m, Width: 1m ~ 2m (customizable) | Length: 3m ~ 8m, Width: 1.5m ~ 3m (customizable) | Length: 2.5m ~ 7m, Width: 1.5m ~ 2.5m (customizable) | Length: 4m ~ 10m, Width: 2m ~ 3m (customizable) |
| Applications | Warehousing, light material handling (customizable) | Heavy load handling, production line support (customizable) | Workshop material transfer, industrial handling (customizable) | Port docks, heavy-duty workshop handling (customizable) |
Widespread Application Scenarios
- Suitable for transporting steel coils, aluminum coils, paper rolls, metal pipes, plastic rollers, casting parts, stamping dies, large steel structural parts, precast concrete components and other heavy, long or cylindrical workpieces.
- Metallurgy & Steel Industry: Steel plants, ironworks, metal processing workshops, for transporting steel coils, steel ingots, steel plates, profiles and scrap steel.
- Machinery Manufacturing: Auto factories, heavy machinery workshops, mold workshops, machining plants for die turnover, large part cross-station transfer.
- Paper & Printing Mills: Transport paper rolls, pulp rolls and finished paper products.
- Shipbuilding Industry: Shipyards for transferring hull parts, steel plates, pipe fittings and cabin components.
- Construction & Prefabrication: Precast component factories, engineering bases for concrete blocks, steel beams and prefabricated wall panels.
- Painting & Coating Workshops: Cooperate with spraying lines to transfer workpieces without polluting power cables.
- Warehouse & Logistics: Large storage yards, port cargo areas, freight stations for pallet goods, heavy container and bulk material turnover.
- New Energy Industry: Wind power factories for wind shafts, battery factories for large raw material turnover.
- Chemical & Non-ferrous Metal Plants: Aluminum factories, copper processing workshops for aluminum coils, copper rolls and metal raw materials.
- Equipment Matching: Cooperate with overhead cranes and gantry cranes to realize cross-span heavy load transportation inside workshops.
Work Shop
Frequently Asked Question
It transports heavy workpieces like coils, pipes and molds in factories, steel mills and logistics yards.
A: Our standard models range from 2 ton to 150 ton, and heavy-duty customized carts can reach up to 1000 tons. We can tailor the load capacity, platform size and wheel layout according to your requirements.
A: Three operation modes are optional: handheld pendant cable controller, wired control, wireless radio remote control and rocker remote control. Multiple modes can be equipped at the same time for switching freely.
1. Battery Powered (KPX Series)
2. Cable Reel Powered (KPT Series)
3. Sliding Line Powered (KPJ Series)
4. Low-Voltage Rail Powered (KPD Series)
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