Our Location
304 North Cardinal St.
Dorchester Center, MA 02124
304 North Cardinal St.
Dorchester Center, MA 02124

Our factory-direct Crane Overload Limiter is a reliable and high-performance crane safety system designed to prevent overloading and ensure safe lifting operations. Built with industrial-grade components, it delivers accurate load monitoring and long-term stability, and full mechanical drawings are available to support installation, integration, and maintenance. This advanced overload protection device is widely used in factories, ports, shipyards, metros, and construction sites, effectively solving problems such as crane overload risk, equipment damage, and safety accidents. As a professional load moment indicator manufacturer, we provide guaranteed after-sales support, with dedicated specialists tracking production, quality control, and order progress to ensure timely delivery and dependable service throughout the entire lifecycle.
As a direct crane and lifting equipment manufacturer,we produce Crane Overload Limiters designed to enhance lifting safety and ensur
e stable operation across all crane types.With years of engineering experience and Factory-direct supply,we deliver precise,
durable,and globally reliable overload protection solutions for industrial lifting systems.
The overload limiter continuously monitors the actual lifting load,prevents excessive lifting,
and protects cranes,operators,and structures from overload-related risks.
High-Accuracy Load Monitoring
Real-time detection using load cells,pressure sensors,or torque sensors.
Automatic Overload Protection
When load exceeds the preset limit,the system triggers alarms and stops lifting actions.
Factory-direct Stability&Reliability
Industrial-grade components ensure long-term durability in harsh working conditions.
Multiple Sensor Options
Suitable for electric hoists,overhead cranes,gantry cranes,jib cranes,and bridge launchers.
User-Friendly Interface
Clear display of load values,fault information,and system status.

| Model | Load Capacity Range | Accuracy | Display Type | Alarm Output | Power Supply | Applicable Cranes |
| OLC-01 | 0.5–20 tons | ±3% | LED Digital | Buzzer+Relay | AC 220V | Hoists,small cranes |
| OLC-02 | 5–100 tons | ±2% | LCD Screen | Relay+Cutoff Control | AC 380V | Overhead&gantry cranes |
| OLC-03 | 50–400 tons | ±1% | LCD/Touch Panel | Multi-relay+Data Output | Custom | Heavy-duty gantry,bridge cranes |
Overhead cranes
Gantry cranes
Jib cranes
Electric hoists
Bridge launchers
Precast beam handling equipment
Container cranes(RMG,RTG)
Prevents overload accidents and structural damage
Protects motors,wire ropes,and mechanical components
Improves workplace safety and compliance
Reduces unplanned downtime and maintenance costs
Enables accurate weight measurement and monitoring
Q1:How does the overload limiter improve crane safety?
A1:By monitoring load values and limiting lifting actions when overload occurs.
Q2:Can it be installed on old cranes?
A2:Yes,suitable for new installations and retrofits.
Q3:Is calibration provided?
A3:Remote calibration guidance and configuration support are available.
Q4:Does it support heavy-duty applications?
A4:Yes,models are available for standard and ultra-heavy lifting.
Remote technical assistance for installation and calibration
Video-based troubleshooting and operation guidance
Factory demonstrations for configuration and testing
Continuous engineering support for industrial crane systems
Q1:What type of cranes can use this limiter?
A1:Overhead,gantry,jib,tower cranes,bridge launchers,and specialized lifting equipment.
Q2:What sensors are supported?
A2:Load pins,pressure sensors,tension sensors,torque sensors.
Q3:Can it integrate with PLC systems?
A3:Yes,supports relay output and optional communication modules.
Q4:How accurate is the load measurement?
A4:Accuracy ranges from±1%to±3%depending on the model.
Q5:Do you offer customized solutions?
A5:Yes,customization is available for load range,display,and interfaces.