Components & Parts
Hoist Load Weight Limiter
Product Overview
The Hoist Load Weight Limiter is a critical safety protection device specifically designed for electric wire rope hoists to monitor loading weight and prevent dangerous overload conditions. This sophisticated system comprises a precision controller and sensor assembly, engineered with a simple yet robust structure for safe operation and easy installation. Compatible with hoists ranging from 0.5 to 32 tons capacity, this essential safety component provides real-time weight display while automatically preventing overload scenarios that could damage equipment or compromise operator safety.
Product Advantages
Advanced Anti-Interference Technology
Features cutting-edge anti-interference devices and unique software design, providing exceptional resistance to electrical interference and ensuring reliable operation in industrial environments with electromagnetic disturbances.
Zero-Point Automatic Tracking
Incorporates advanced memory technology with automatic zero-point tracking to eliminate sensor drift and amplifier variations over time, maintaining weighing accuracy throughout extended operational periods.
Durable Construction Design
Built with high-strength manganese steel base and seamless metal shell construction, ensuring exceptional durability and resistance to wear while providing extended service life in demanding applications.
Factory-Calibrated Precision
All components are precision-calibrated at the factory using advanced instruments according to technical standards, eliminating the need for on-site debugging during installation for immediate operational readiness.
Software Adjustment Technology
Utilizes advanced software adjustment memory technology for convenient and intuitive calibration processes, enabling reliable after-sales service and simplified on-site maintenance procedures.
Application Scenarios
Electric Wire Rope Hoists
Essential for CD1/MD1 electric wire rope hoists in manufacturing facilities, warehouses, and industrial operations requiring precise load monitoring and overload prevention for safe material handling.
Single-Beam Crane Systems
Critical for single-beam crane applications where accurate weight measurement and automatic overload protection ensure equipment longevity and operator safety during lifting operations.
Industrial Material Handling
Perfect for various industrial lifting applications from 0.5 to 32 tons capacity, providing comprehensive safety protection for manufacturing, construction, and heavy industry operations.
Maintenance and Service Operations
Ideal for workshop environments and service applications where reliable load monitoring prevents equipment damage and ensures safe lifting practices during maintenance procedures.
Product Specifications and Dimensions
| Specification | Parameters |
|---|---|
| Capacity Range | 0.5T to 32T electric hoists |
| System Error | Less than ±5% (F.S) |
| Static Sensor Strength | 1.5 times rated load capacity |
| Operating Temperature | -20°C to +60°C ambient conditions |
| Relative Humidity | 20% to 95% operational range |
| Power Supply | AC380V, 50Hz, 5W power consumption |
| Relay Contact Capacity | AC380V, 3A shock capacity |
| Controller Withstand Voltage | 2000V electrical isolation |
| Display Type | Four-digit high-brightness LED digital display |
Features at a Glance
✓ Three-Level Alarm System: Pre-alarm at 90%, rated alarm at 100%, and immediate cutoff at 105% of rated capacity
✓ Seamless Waterproof Design: Anti-aging waterproof joints and metal shell construction for harsh environment operation
✓ Automatic Power Cutoff: 2-second delay power disconnection when 105% overload is detected for equipment protection
✓ Visual Indicator System: Green, yellow, and red LED indicators corresponding to different alarm levels for clear status identification
✓ High-Brightness Display: Four-digit LED display with automatic decimal point switching for precise weight readings
✓ Wide Temperature Range: Operates reliably from -20°C to +60°C for diverse industrial applications
✓ Factory Pre-Calibration: Precision factory adjustment eliminates need for on-site debugging during installation
FAQ
Q: How does the three-level alarm system work?
A: The system provides pre-alarm at 90% capacity with green light and intermittent sound, rated alarm at 100% with yellow light, and immediate alarm at 105% with red light and continuous sound, followed by automatic power cutoff after 2 seconds.
Q: What is the accuracy of the weight measurement system?
A: The system maintains less than ±5% (F.S) system error with zero-point automatic tracking technology that compensates for sensor drift and amplifier variations over time to ensure consistent accuracy.
Q: Can the limiter be installed on existing hoist systems?
A: Yes, the limiter is designed for easy installation on electric wire rope hoists from 0.5T to 32T capacity. Factory pre-calibration typically eliminates the need for on-site debugging during installation.
Q: What happens when the system detects overload conditions?
A: At 105% overload, the system sounds a continuous alarm, activates the red indicator light, and automatically cuts power to the crane’s lifting contactor after a 2-second delay to prevent equipment damage.
Q: How does the system handle environmental interference?
A: Advanced anti-interference devices and unique software design provide exceptional resistance to electromagnetic interference, while the seamless waterproof construction protects against moisture and environmental contaminants.
