Have you ever wondered which factories in China lead the way in mobile crane anti two block technology? In this article, we’ll explore the top manufacturers, highlighting their innovations, quality, and reputation. Join us as we dive into the world of mobile cranes and discover what sets these factories apart!
A2b Anti Two Block with Counter Weight – All-Where Crane
Product Details: A2b Anti Two Block with Counter Weight, designed for mobile cranes with a capacity of 3t-100t. The material used has a certain tensile strength, ensuring safety and reliability. It undergoes processes like cold bending, hot forging, and welding, with appropriate heat treatment to eliminate stresses.
Pros:
– High tensile strength for safety and reliability
– Suitable for various crane applications
Cons:
– Requires proper heat treatment to eliminate stresses
– Limited to specific weight capacities (3t-100t)
GJ-3 mobile crane A2B Hook anti two block device Limit Switch
Product Details: GJ-3 mobile crane A2B Hook anti two block device Limit Switch, IP65 protection level, operating temperature -25°C to +60°C, max current 10A, max voltage AC 380V, weight of hammer ≥1.9kg, power supply 12-380V, CE&CCS certified, 12 months warranty.
Pros:
– High protection level (IP65)
– Wide operating temperature range
Cons:
– Limited to a maximum current of 10A
– Requires specific installation and setup
Anti Two Block System – Crane – Anti Two Blocking Device
Product Details: GJ-type Limit Switch (hook limit switch) for lifting wire rope anti-volume limit with electrical automatic protection. Rated for DC and AC voltage 12 ~ 380V; Rated current: 5A and 10A. Supports external hammer weight: ≥ 1.7kg.
Pros:
– Automatic cut-off of hoist power supply to prevent over volume.
– Suitable for both DC and AC voltage.
Cons:
– Limited to specific weight and current ratings.
– Installation may require technical assistance.
Crane Anti Two Block Switch & Display Options – BTS Crane Parts Store
Product Details: Crane Anti Two Block Switches and Kits assist in preventing collisions between the hook block and the boom tip, featuring both hardwired and wireless options for various crane types.
Pros:
– Increases safety by preventing two-blocking accidents.
– Available in both hardwired and wireless options for flexibility.
Cons:
– May require maintenance due to boom vibration.
– Installation may vary in complexity depending on the crane type.
Product Details: Rayco Wylie R147 User Manual
Pros:
– User-friendly interface
– Comprehensive safety features
Cons:
– Limited availability of parts
– Potential compatibility issues with older models
Anti Two block crane dan system kerjanya – PT. Artha Tehnik Mandiri
Product Details: Anti Two Block Crane is designed to prevent the crane from lifting loads beyond its safe limits.
Pros:
– Enhances safety by preventing overloading.
– Improves operational efficiency.
Cons:
– May require regular maintenance.
– Initial installation costs can be high.
Product Details: Hydraulic Mobile Cranes with advanced safety features including Load Moment Indicator (AML), anti-two-block device, and work range limit function.
Pros:
– Enhanced safety with multiple detection systems and alarms.
– Automatic stop functions to prevent overload and accidents.
Cons:
– Complexity of operation may require extensive training.
– Potential for mechanical failure in safety devices.
Problems Caused by Crane-Two Blocking & How to Avoid Them
Product Details: Anti-two-blocking systems for cranes, including wireless and hardwired options, designed to prevent two-blocking incidents and enhance safety.
Pros:
– Enhances safety for operators and workers by preventing two-blocking incidents.
– Improves productivity and efficiency on job sites.
Cons:
– Older cranes may lack anti-two-blocking technology.
– Malfunctioning systems can pose risks if not properly maintained.
Anti-Two Block Sensors – McCoy Global Inc.
Product Details: Anti-Two Block Sensors provide an immediate warning when the hook block or load hook approaches the boom head. Designed to operate with 18 LB weight, battery powered, with hermetically sealed switch contacts and constant monitoring for fault conditions.
Pros:
– Immediate warning system for safety
– Hermetically sealed switch contacts for durability
– Available in wireless and hardwired options
Cons:
– Requires specific battery type (Lithium D-Cell)
– Operating temperature range may limit use in extreme conditions
Mobile Machine Controls, Sensors, and Consoles | WIKA Mob | WIKA Mobile …
Product Details: WIKA Mobile Control offers a range of products including pressure sensors, anti-two block switches, HMIs, wireless solutions, geometric sensors, controls, load moment indicators, retrofit solutions, force sensors, trip amplifiers, and I/O signal capture modules, designed for mobile machinery in various environments.
Pros:
– Robust and precise measurement solutions for mobile machinery.
– Versatile and user-friendly interfaces for extreme environments.
Cons:
– Limited information on specific product performance metrics.
– Potentially high cost for advanced features.
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Comparison Table
| Company | Product Details | Pros | Cons | Website |
|---|---|---|---|---|
| A2b Anti Two Block with Counter Weight – All-Where Crane | A2b Anti Two Block with Counter Weight, designed for mobile cranes with a capacity of 3t-100t. The material used has a certain tensile strength, ensur… | – High tensile strength for safety and reliability – Suitable for various crane applications | – Requires proper heat treatment to eliminate stresses – Limited to specific weight capacities (3t-100t) | www.allwherecrane.com |
| GJ-3 mobile crane A2B Hook anti two block device Limit Switch | GJ-3 mobile crane A2B Hook anti two block device Limit Switch, IP65 protection level, operating temperature -25°C to +60°C, max current 10A, max volta… | – High protection level (IP65) – Wide operating temperature range | – Limited to a maximum current of 10A – Requires specific installation and setup | www.tradechina.com |
| Anti Two Block System – Crane – Anti Two Blocking Device | GJ-type Limit Switch (hook limit switch) for lifting wire rope anti-volume limit with electrical automatic protection. Rated for DC and AC voltage 12… | – Automatic cut-off of hoist power supply to prevent over volume. – Suitable for both DC and AC voltage. | – Limited to specific weight and current ratings. – Installation may require technical assistance. | www.tradechina.com |
| Crane Anti Two Block Switch & Display Options – BTS Crane Parts Store | Crane Anti Two Block Switches and Kits assist in preventing collisions between the hook block and the boom tip, featuring both hardwired and wireless… | – Increases safety by preventing two-blocking accidents. – Available in both hardwired and wireless options for flexibility. | – May require maintenance due to boom vibration. – Installation may vary in complexity depending on the crane type. | store.bodetechnicalservices.com |
| Rayco Wylie R147 User Manual | – User-friendly interface – Comprehensive safety features | – Limited availability of parts – Potential compatibility issues with older models | www.cranewarning.com | |
| Anti Two block crane dan system kerjanya – PT. Artha Tehnik Mandiri | Anti Two Block Crane is designed to prevent the crane from lifting loads beyond its safe limits. | – Enhances safety by preventing overloading. – Improves operational efficiency. | – May require regular maintenance. – Initial installation costs can be high. | arthatehnikmandiri.com |
| Hydraulic Mobile Cranes with advanced safety features including Load Moment Indicator (AML), anti-two-block device, and work range limit function. | – Enhanced safety with multiple detection systems and alarms. – Automatic stop functions to prevent overload and accidents. | – Complexity of operation may require extensive training. – Potential for mechanical failure in safety devices. | www.tadano.com | |
| Problems Caused by Crane-Two Blocking & How to Avoid Them | Anti-two-blocking systems for cranes, including wireless and hardwired options, designed to prevent two-blocking incidents and enhance safety. | – Enhances safety for operators and workers by preventing two-blocking incidents. – Improves productivity and efficiency on job sites. | – Older cranes may lack anti-two-blocking technology. – Malfunctioning systems can pose risks if not properly maintained. | diamondriggingandcrane.com |
| Anti-Two Block Sensors – McCoy Global Inc. | Anti-Two Block Sensors provide an immediate warning when the hook block or load hook approaches the boom head. Designed to operate with 18 LB weight,… | – Immediate warning system for safety – Hermetically sealed switch contacts for durability – Available in wireless and hardwired options | – Requires specific battery type (Lithium D-Cell) – Operating temperature range may limit use in extreme conditions | www.mccoyglobal.com |
| Mobile Machine Controls, Sensors, and Consoles | WIKA Mob | WIKA Mobile … | WIKA Mobile Control offers a range of products including pressure sensors, anti-two block switches, HMIs, wireless solutions, geometric sensors, contr… | – Robust and precise measurement solutions for mobile machinery. – Versatile and user-friendly interfaces for extreme environments. |
Frequently Asked Questions (FAQs)
What is an anti two block system in mobile cranes?
An anti two block system is a safety feature designed to prevent the crane’s hook from coming into contact with the boom. This system helps avoid damage to the crane and ensures the safety of the operators and surrounding personnel. It typically includes sensors that detect the hook’s position and trigger alarms or automatic shutdowns if a two-block condition is imminent.
Why are anti two block systems important in mobile cranes?
These systems are crucial for preventing accidents and equipment damage. By stopping the crane from reaching a dangerous position, they protect both the operator and the load being lifted, ensuring safer operations on job sites.
How do anti two block systems work?
Anti two block systems use sensors to monitor the distance between the hook and the boom. If the hook gets too close, the system activates alarms or automatically stops the crane’s operation. This proactive approach helps prevent accidents before they occur.
Are anti two block systems mandatory in China?
Yes, in China, anti two block systems are often required by safety regulations for mobile cranes. Compliance with these regulations is essential for ensuring safe lifting operations and protecting workers on construction sites.
How can I maintain the anti two block system in my crane?
Regular maintenance is key to keeping your anti two block system functioning properly. This includes routine inspections, testing the sensors, and ensuring all components are clean and free from damage. Following the manufacturer’s guidelines will help ensure the system operates effectively.
