Grab Bucket Overhead Crane - Henan Seven Industry Co., Ltd

Grab Bucket Overhead Crane Introduction

SEVENCRANE is a leading manufacturer of bridge cranes, and its Grab Bucket Overhead Crane is one of its most popular products. This crane is equipped with a grab bucket for handling bulk materials, which opens and closes to pick up and release the material. The Grab Bucket Overhead Crane is usually a double-beam construction with a heavy-duty duty rating and a rated lifting capacity between 5-20 tons.

Features:
1. Multiple control modes: supports automatic, semi-automatic and manual control, suitable for warehouses and fuel depots.
2. Laser-assisted measurement: equipped with laser device to provide accurate height measurement.
3. All-weather operation: designed for various climatic conditions to ensure continuous operation.
4. Safety protection device: equipped with lifting limit switch, CT and other safety measures to ensure safe operation.
5. Overload protection: enhance performance safety and prevent overload operation.
6. Remote control: simple and convenient operation, improve use flexibility.
7. Dual-speed mechanism: provides better working accuracy and performance.
8. Electrical protection: equipped with low voltage protection, phase sequence protection and emergency stop device.
9. Warning indicator: installed with flashing light and warning sound to enhance safety.

Application Areas:
1. Power Stations: For loading and unloading of coal and ore.
2. Warehouses: Efficiently handle bulk materials.
3. Workshops: Support material handling and management.
4. Ports: Play an important role in container and bulk cargo loading and unloading.
5. Waste Handling: Efficiently handle bulk objects such as scrap metal and garbage.

With its high lifting capacity, customizable grab bucket and user-friendly control system, Grab Bucket Overhead Crane is an ideal choice for improving efficiency and productivity in various industries.

Type of Lifting Equipment:
1. Four-cable grab: Suitable for bridge or gantry cranes with double lifting drums, grab various loose piles, and the design form can be customized according to needs.
2. Double-cable grab: Suitable for double lifting devices, widely used in ports, docks and construction industries, capable of grabbing light to ultra-heavy loose materials.
3. Single-cable suspension grab: Suitable for single-hook cranes, with a novel opening and closing mechanism, suitable for grabbing and turning materials, but cannot be opened and closed in the air.
4. Electric grab: Suitable for multi-purpose cranes, with high efficiency and convenient disassembly functions, mainly used for grabbing various loose objects, not suitable for underwater operations.
5. Electric stainless steel grab: Designed specifically for the brewing industry, used to grab brewing raw materials, reduce the labor intensity of workers, and keep the production workshop clean.
6. Multi-petal grab: Suitable for loading and unloading scrap steel and garbage in harsh environments, with various structural forms, and the number of jaws can be customized according to needs.
7. Timber grab: suitable for timber yards and paper mills, etc., for unloading ships, loading and stacking, supporting a variety of structural types.
8. Electric hydraulic grab: combined with electro-hydraulic mechanical technology, suitable for loading and unloading of bulk materials such as ore, pig iron and garbage, with a high degree of automation.
9. Mechanical grab: suitable for various bulk materials, widely used in steel mills, power plants and docks, with diversified designs.
10. Hydraulic flip grab: integrating electrical, hydraulic and mechanical technologies, suitable for grabbing powdered and granular bulk materials, widely used in waste incineration plants.
11. Mechanical orange peel grab: suitable for efficient loading and unloading of large pieces of scrap metal and garbage, widely used in ports and mines, suitable for underwater operations.
12. Electric motor orange peel grab: suitable for various harsh environments, grabbing large pieces of scrap metal and garbage, widely used in ports and metallurgical industries.
13. Hydraulic orange peel grab: suitable for loading and unloading tools for ore, pig iron and waste piles, with strong grabbing force and high degree of automation.

Overhead Crane Features

Design

Technology

Production

Maintenance and Security

Overhead crane systems are designed in accordance with ISO, FEM and DIN standards.

Customized according to the lifting weight required by the customer's project, the operating speed of the electric hoist and the working level.

The steel plate material is general-purpose steel Q235B, and the steel plate will be pretreated by shot blasting to reach the standardization of Sa2.5 level.

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Design Scheme

SEVENCRANE stands for first-rate service, cost-effective, high quality.

The main beam and end beam are connected by high-strength bolts to ensure the accuracy and smooth operation of the whole machine.

A variable structure control scheme, a variable structure controller combined with a state feedback control scheme and an integrated control scheme are proposed to control the bridge crane.

We have a professional team of engineers to design and develop cranes, and have a complete technical system to analyze crane design drawings.

Our bridge crane component design and structure standards are certified according to DIN15018, BLATT2 and the steel structure welding standards are in accordance with DIN18800, BLATT7.

Equipped with a double-speed lifting mechanism, the running mechanisms of large and small vehicles all adopt frequency conversion stepless speed regulation.

All the plates are automatically cut by CNC cutting machine, and the camber of the main beam is preset to avoid the problem of deflection of the camber of the traditional fire-baked main beam.

The steel surface is treated with shot blasting and sand blasting to improve the adhesion of the paint and prevent the paint from peeling off, ensuring the long-term beauty of the whole machine.

Technology

The main welding seam adopts submerged arc automatic welding, non-destructive flaw detection, and the shape is beautiful to ensure the welding quality.

End beam material: high quality alloy steel Q345B.

The end beam is welded and formed by rectangular steel pipe or steel plate, and the formed end beam is positioned and processed on a CNC boring and milling machine at one time to ensure dimensional accuracy and fit tolerance.

The lifting trolley has a modular design, and the working level is FEM M4-M6. The entire lifting trolley has a compact structure, low headroom and light weight.

Production

SEVENCRANE stands for first-rate service, cost-effective, high quality.

The main girder of the crane is welded by steel plates, and the steel plate materials meet the international crane production standards. The main steel structure materials we use are not lower than Q235B, and the materials used have material reports and corresponding qualification certificates.

There are buffer blocks at both ends of the end beam to reduce the impact force of the collision and reduce the impact inertia. The beam body of the whole machine adopts shot blasting and painting process according to the world standard.

The running track of the trolley is made of square steel to increase the effective contact area of the wheel tread and reduce the weight of the track. The material of the square steel track is Q345B.

The operation room is operated by a linkage table, and is equipped with a remote control at the same time. Through the switch, it can be operated by remote control or switched between operations during operation. Lighting and seats are installed indoors, and the entrance of the operating room is end-entry, which conforms to European and international standards.

Our crane design concept is an extension of the European concept, and we have summarized our unique production technology and solutions through long-term in-depth research and application practice.

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MAINTENANCE AND SECURITY

All operators in our production workshop must hold legal operating certificates.

The cranes we produce are equipped with a safety monitoring system, which is professionally developed by the company in accordance with FEM/DIN/ISO/GB related standards, and is used for crane operation data recording, safety protection, and electronic instruments for status display.

The safety monitoring system has real-time protection functions for more than 30 working conditions such as operating failures, safety hazards and illegal operations, preventing the crane from operating in potentially dangerous situations and ensuring the safety of personnel and equipment.

Schneider TE is a vector frequency conversion control system specially developed for European crane components.

There is shock-absorbing plastic raw material derived wedges at both ends of the crane landing gear.

Overload protection, residual current relay, PTC thermistor, crash sensor, emergency stop button, sound/light warning and warning siren are standard protection units for all our overhead cranes.

At the time of delivery, we will provide customers with crane safety operation manuals and maintenance manuals. If the customer needs it, we will also send safety engineers to the site to know the customer's safe installation.