Crane Grab Rental Services at Sơn Tùng Mechanical - Reliable and Professional [2023]
What is a Crane Grab? A crane grab (or grab crane) is a type of equipment developed and improved based on the structure of a basic double-beam overhead crane.
This equipment is used for lifting heavy materials or goods, which differs from the usual overhead crane but has the same purpose of lifting large weights.
Basic Structure of a Crane Grab:
- Main beam (usually a double beam type);
- Hoist (one or two hoists combined);
- Crane side beams;
- Grab (made from special steel, operates via hydraulic or electric power).
Crane grabs work with a relatively complex mechanism, and the grab part must be precisely integrated to ensure high performance. The installation and fabrication time is typically longer than for regular overhead cranes, which makes the equipment more expensive. Despite significant advancements in technology, few alternatives are available for crane grabs in industrial fields. They still play an important role in the industry.
Types of Crane Grabs: Crane grabs are divided into several types, making it easier for customers to select the one that suits their purpose. Specifically:
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Mechanical Grab
A type of grab used for overhead cranes, which operates independently of its own weight, featuring a simple mechanism for opening/closing. The crane equipped with a mechanical grab has two drums for lifting/lowering and opening/closing. -
Hydraulic Grab
This is a type of grab used with overhead cranes that many customers trust. It uses a hydraulic motor to open/close the grab by pumping oil and has a remote control feature for easy operation and maintenance at low costs. The steel structure of the hydraulic grab is made of HB400 steel, which has high wear resistance.
Main Functions of Crane Grabs: Depending on their mechanism and operating principle, different types of crane grabs are applied in various fields:
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Mechanical Grab
Mechanical grabs are well-suited for handling lightweight materials such as grains, coal in thermal power plants, construction sand, cement, chemicals, etc. They are integrated with remote controls to ensure effective operations and easy handling. -
Hydraulic Grab
Hydraulic grabs are often used in light industries (e.g., sugar production, wood processing), heavy industries (e.g., handling scrap metal, port cargo), oil extraction industries (e.g., coal, limestone, ore handling), or used for waste removal in hydroelectric plants, dredging, and mud removal at river mouths.
Standard Load Capacities of Crane Grabs:
- 2-ton crane grab with a bucket capacity of 0.5 m³ – 1.2 m³;
- 5-ton crane grab with a bucket capacity of 1.5 m³ – 2.5 m³;
- 7.5-ton crane grab with a bucket capacity of 2.5 m³ – 4.0 m³;
- 10-ton crane grab with a bucket capacity of 4.0 m³ – 6.0 m³;
- 15-ton crane grab with a bucket capacity of 6.0 m³ – 8.0 m³;
- 20-ton crane grab with a bucket capacity of 8.0 m³ – 10.0 m³;
- 25-ton crane grab with a bucket capacity of 10.0 m³ – 12.5 m³;
- 30-ton crane grab with a bucket capacity of 12.5 m³ – 15.0 m³;
- 50-ton crane grab with a bucket capacity of 15.0 m³ – 20 m³.
Operating Principle of a Crane Grab: When the motor is powered on, the hydraulic brake is released, causing the motor to rotate and transmit motion through a gearbox. The motion is then transferred to a cable drum via joints. As the cable slackens, the movable pulley and cam linkage between the left and right grab bodies push the two grab bodies apart, opening the grab. When the cable is pulled taut, the pulley moves upwards, pulling the two grab bodies together, closing the grab.
Reliable Crane Grab Rental Services at Sơn Tùng Mechanical: Crane grabs are used in a variety of fields for useful applications. If you are looking for a reliable crane grab rental service, Sơn Tùng Mechanical can meet your needs.
To cater to customers' short-term needs, Sơn Tùng Mechanical offers crane grab rentals in common sizes such as 5m³, 8m³, 12m³, 20m³, and 25m³.
Why Choose Sơn Tùng Mechanical:
- Sơn Tùng provides new, modern machinery and equipment, carefully maintained.
- Affordable crane grab rental prices.
- Thoughtful and dedicated customer support.
- A trusted brand in the market, with years of customer confidence.
- Skilled technicians available to assist during the rental service.
Conclusion: This article provides valuable information about reliable and professional crane grab rental services at Sơn Tùng Mechanical. If you want to know more about this topic or need advice on related services, please leave a message, and we will respond as soon as possible!
