I. Core Design Logic: Influencing Factors and Key Parameters
(1) Core Influencing Factors
Load-Bearing Requirements:
The weight of the steel coil is the primary design consideration. Both the weight of a single coil and the number of coils transported at one time must be accounted for, while maintaining a 20–30% safety margin to prevent structural deformation due to overload.
The width and diameter of the steel coils should also be considered when determining the platform size. The platform should not be excessively large or small to avoid waste of materials or operational inconvenience.
Operating Environment:
For rail systems, the flatness of the tracks must be evaluated. For trackless models, ground slope and surface smoothness are critical. Operating temperature (high/low) and humidity (humid or corrosive environments) directly affect the wheel material selection.
Transportation Distance and Speed:
Short-distance workshop transfers require stable start/stop performance, while long-distance transportation requires optimization of the power system and endurance (battery or cable power supply selection).
Track Conditions:
Track type (rail or trackless), gauge, and length determine the wheel set design and steering structure (fixed or steering wheels).
Safety Regulations:
The design must comply with Safety Regulations for Lifting Machinery, incorporating features such as anti-tipping devices, emergency stop buttons, overload protection, and limit switches.
(2) Key Design Parameters
Rated Load Capacity:
This is the most important parameter, directly determining the frame material (Q235B or high-strength alloy steel), wheel diameter, motor specifications, and battery capacity.
Platform Dimensions:
Defined based on the outer diameter and width of the steel coil, with a safety clearance of 10–20 cm on each side. Common sizes include 3m × 1.5m and 4m × 2m.
Operating Speed:
The standard speed is 20 m/min, adjustable upon request. Variable frequency control can be added for smooth acceleration, deceleration, and precise positioning (accuracy ±5 mm).
Note: Excessive speed is not recommended, as it compromises safety. Please consult the manufacturer before requesting higher speeds.
Power Supply Method:
This determines battery life and operational flexibility. Common options include:
Cable reel power supply – ideal for long-distance, fixed-track operation.
Battery power supply – flexible and cable-free.
Sliding contact line power supply – suitable for high-frequency, continuous operation.
Wheel Parameters:
The wheel material (forged steel or polyurethane) and diameter (200–500 mm) must match the load-bearing requirements and track hardness to minimize wear.
III. Main Types of Steel Coil Transfer Carts
1. Rail-Mounted Steel Coil Transfer Carts:
Operate on fixed tracks with a high load capacity (1–1000 tons). Ideal for fixed-route transfers in workshops. They have a simple structure and low maintenance cost.
2. Trackless Steel Coil Transfer Carts:
Rubber-tired, requiring no tracks, and capable of flexible movement between different areas. With a typical load range of 5–50 tons, they are suitable for short-distance, multi-area transfers.
3. Rotary Steel Coil Transfer Carts:
Feature a 360° rotating platform for easier loading, unloading, and orientation adjustment of coils.
4. Incline-Climbing Steel Coil Transfer Carts:
Designed for operations on slopes (≤5°), featuring a high-power motor and anti-slip wheels. Suitable for transfers between areas with elevation differences.
IV. Key Parameters Required for Customization
When customizing a steel coil transfer cart, the following details must be provided to ensure the design fits your operational needs:
Steel Coil Data: Weight, diameter, width, and number of coils per transfer
Operating Environment: Track type and gauge, ambient temperature, humidity, and corrosion level
Transportation Requirements: Distance, speed, and slope (if any)
Functional Requirements: Need for rotating platforms, variable frequency control, or precise positioning
Power Supply: On-site power source availability and desired battery endurance
V. Summary
The core design principle of a steel coil transfer cart is "safe load-bearing capacity with environmental adaptability."
From load rating to power supply selection, every parameter directly impacts pe
