Crane Reducers for overhead crane, gantry crane, trolley hoist

1. Application scope: Electric hoist traveling mechanism, gearbox reducers for crane.

2. Widely used in transmission equipment of mining, metallurgy, chemical industry, building material and light industry, etc.

3. The crane reducer should meet the mechanical strength needs when it's used in cranes.

4. Crane reducer mainly used in mechanism of lifting, traveling, rotating and amplitude.

5. The needs of suspension-suit-type gear reducer which is installed in traveling mechanism are small volume, light weight and compact structure; and its output end should be Internal spline which is directly installed in wheel shaft, input end should pass through a coupling and be connected with brake motor by flange; and its top should have holes for pin shaft and buffer device to fix on frame.

6. Crane motor and converter-speed-regulating motor for metallurgy are squirrel-cage rotor motor. Squirrel-cage rotor motor could meet the needs of different working conditions, such as frequent starting, braking, overload, reversing, over speed, collision and vibrating. And it also could meet the need of working under invert control, to realize soft start and four-quadrant operation.

Crane reducer

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Email: weihua@craneweihua.com

WhatsApp: +86 15093392066

Wire Rope Reel or Drum for overhead crane and gantry crane

1. Wire Rope Reel/Drum Application: Crane accessories for reeling wire rope as a winch or electric hoist.

2. Drum units is constituted by drum, shaft, gearwheel, hub, bearing body and bearing.

3. The material of wire rope drum is usually no less than HT20-40 cast iron, ZG25,ZG35 or Q235B, Q345B welding steel plate is also able to be the material for special needs.

4. Wire rope drum units applies to the large tonnage crane machinery which needs high-performance.

Wire Rope Reel/Drum

For Safety

1. The surface of the single-layer winding drum is cut with a spiral groove with an arc-shaped section to increase the contact area between the wire rope and the drum body, and to fix the winding position of the wire rope on the drum to avoid the influence of adjacent wire ropes rubbing against each other.



2. The surface of the drum body of the multi-layer winding drum is usually a smooth surface without spiral grooves, and there are flanges at both ends of the drum body to prevent the wire rope from slipping out. The disadvantage is that the wire ropes are closely arranged, and the layers are stacked and rubbed against each other, which has a great impact on the life of the wire rope. Among the structural dimensions of the reel, the key dimension that affects the life of the wire rope is the calculated diameter of the reel.



3. In order to ensure the reliable fixation of the wire rope tail and reduce the stress on the pressure plate or wedge, when the pick-up device is lowered to the lower limit position, in addition to the fixed loop of the wire rope, 1.5 to 3 safety loops should be reserved on the reel. Known as the load-relief ring, this has been taken into account in the design of the reel. In use, the more loops of the wire rope tail are retained, the smaller the force on the pressure plate or wedge of the rope tail, and the safer it is. If the lower limit position of the pick-up device is too low and the remaining number of wire ropes on the drum is less than the designed number of safe loops, the force on the tail of the wire rope will exceed the pressing force of the pressure plate or wedge, resulting in the wire rope was pulled off and the heavy object fell.









Wire Rope Drum Packing

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Email: weihua@craneweihua.com

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New Design Crane Wheels for Overhead Crane and Gantry Crane

New Design Crane Wheels for Overhead Crane and Gantry Crane 

Diameter: Φ160mm~ Φ1000mm

This wheel set is for the new generation European standard overhead crane for traveling and hoist mechanism. The wheels are made by 42CrMo, 65Mn, etc. with large wheel load and long service life.

New Design Crane Wheels for Overhead Crane and Gantry Crane

Structural Features:
1. 42CrMo, 65Mn, etc.;
2. Compact structure, large wheel load;
3. Reserved encoder interface, effective deviation correction;
4. The structure is easy to install and disassemble, with high assembly precision and stable operation;
5. Good wear resistance and impact resistance, thus improving the service life of the wheel;
6. The German SPECTRO spectrometer is used for material testing to ensure the accuracy of the material;
7. It covers Ф250-Ф900 and other specifications, and can also carry out non-standard designs according to customer needs.

Product Performance:
1. Smooth transmission and low noise;
2. Strong versatility and convenient replacement of accessories;
3. All wheelsets are made with well-known brand bearings, which are processed and assembled in strict accordance with industry standards to ensure that each product is a qualified product.

https://www.weihuacraneglobal.com/product/New-Design-Crane-Wheels.html

Email: weihua@craneweihua.com

WhatsApp: +86 15093392066

Crane Gearbox H Series for overhead crane and gantry crane

Crane Gearbox H Series

Model: H3HH5~H4HH25
Max. Power: 10515KW
Output Torque: 6KN•m～1400KN•m
Transmission Ratio: 1.25～450
The speed of the high-speed shaft ≤1500r/min;
Working Temperature: -25℃～+40℃;
It rotates in both forward and reverses directions;

Crane Gearbox H Series

Working Conditions:
Operating hours per day: 24 hours
Working factor: 100%
Maximum temperature: 90°C (mineral oil cooling) and 100℃ (cooling with VG460 synthetic oil)

Structural Features:
1. Parallel shaft transmission;
2. Modular design to meet different needs;
3. The gear precision reaches 5-6 grades with less noise;
4. Overall structure of the box, excellent oil seal with good sealing.







Product Design:
1. From the gearbox to the internal gear, it adopts a completely modular design, which is suitable for large-scale production and flexible selection.
2. The gear adopts alloy carburizing and quenching, the tooth surface hardness is as high as 60±2HRC, and the tooth surface grinding accuracy is as high as 5-6 grades.
3. The installation method of the product is flexible and changeable, which is easy for customers to choose.

Product Performance:
1. Low noise, noise-absorbing box structure + large coincidence gear design.
2. Using computer modification technology, the gear is pre-shaped, which greatly improves the bearing capacity of the reducer.
3. Good temperature characteristics due to its high efficiency, large surface area of the box and a cooling system with good performance.

https://www.weihuacraneglobal.com/product/Crane-Gearbox-H-Series.html

Email: weihua@craneweihua.com

WhatsApp: +86 15093392066

Weihua Overhead Cranes Assists Operation of 100000T Graphite Electrode Project

At 10:30 am of December 21, the opening ceremony of a 100,000-ton ultra-high-power graphite electrode project was successfully held. Many city leaders and Weihua Group President Yu Youfei attended the event. There are more than 300 people including city leaders, suppliers, people of design and construction unit participated in the activity.



Graphite electrodes are consumables for smelting iron and steel. As we know, the main characteristics of graphite electrode manufacturing are "dirty, tired, and dumb". As an important raw material for steel smelting, and manufacturers have different size requirements for the graphite electrode, and there is no standardized string and transfer equipment. Most of time, people use primitive manual methods. For example, small-diameter graphite electrodes of each furnace requires more than 20-time grouping and transfers, which is time-consuming and labor-intensive, and the efficiency is extremely low.



To this end, Weihua provided several multi-functional intelligent bridge cranes for this project and provide reasonable solution for the successful operation of the project.



The overhead cranes for graphite electrode handling can realize full handling of graphite electrodes such as storage, grouping, film winding, strings, automatic switching of single and double rows, loading and unloading of single or double rows of multi-specification graphite electrodes. And lifting the furnace cover. It turns the complexity into simplicity. Weihua smart overhead cranes improve the product quality of graphite electrodes and truly realizes the efficient production of graphite electrodes.
https://www.weihuacraneglobal.com/news/Weihua-Overhead-Cranes-Assists-Operation-of-100000T-Graphite-Electrode-Project.html

Email: weihua@craneweihua.com

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Weihua Equipment for Bulk Material Handling Projects

Weihua bulk material conveying equipment has won numerous praises from customers for its design capabilities, intelligent electrical control systems, green and environmentally friendly dust suppression technology and full process production capabilities. Now let's have a look at some projects supported by Weihua Material Handling Equipment.

Weihua bulk material conveying equipment

In the first phase of a Wharf Project in China, Weihua undertook a total of 11 fixed belt conveyors, 5 mobile belt conveyors, 4 transfer stations, 2 transfer funnels, and 2 ship loader, 2 floating cranes.



For supporting terminal project of the 40 million tons/year refining and chemical integration base in a Petrochemical company, Weihua provide dry bulk terminal belt conveyor and ancillary equipment system including 8 belt conveyors and other ancillary equipment systems, of which 4 sets 2200mm large-bandwidth conveyor with a belt speed of 5m/s and a transportation volume of 7680t/h. It adopts a central three-drive arrangement, with a motor power of 3x800kw and a single machine length reaches 950m.



In the first phase of the project of a Coal and Iron Distribution Base, Weihua provides 36 belt conveyors with a total length of about 13km, belt width 1400mm-2200mm, and a maximum conveying capacity of 8000t/h.



Weihua made the belt conveyor equipment for the railway loading system of a Mining Company. This project includes 5 new and 4 modified belt conveyors with a total length of 1711m and a transportation capacity of 5000t/h with a speed of 5.0m/s.



In a Coal Mining company project, the Weihua provide the retractable belt conveyor with total length of 6.3 kilometers, conveying capacity of 5000t/h, belt speed of 4.5m/s, and a belt width of 1600mm. It is controlled by a frequency conversion integrated machine.

As the core equipment of the coal conveying line of a Cogeneration Project. Weihua provides a cantilever bucket wheel stacker and reclaimer for the storage and handling of coal of this power plants.

 

https://www.weihuacraneglobal.com/news/Weihua-Equipment-for-Bulk-Material-Handling-Projects.html

Email: weihua@craneweihua.com

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Weihua 300 Tons Overhead Crane for Steel Foundry Plant

 On May 18th, the Capacity Upgrade Project of an Iron and Steel Company blast furnace was successfully ignited. The project entered the stage of full-line production, opening a new chapter in the optimization of the layout, transformation and upgrading of the iron and steel industry in Henan Province.

 

 

Weihua made several capacity 300t overhead cranes for its steel foundry plant. These cranes are with four-girder four-track structure, which is for the task of foundry process transfer, converter charging, refining and molten steel receiving.

 

 

Features of Weihua Foundry Cranes

 

1. Overall processing

The overall annealing and overall processing of the main hoisting frame ensure the installation accuracy of gears, bearings, motors, brakes, etc., with low noise, smoothness and no impact; the overall processing of the bridge frame ensures product wheel line accuracy and more stable operation.

 

2. Life service life

The detachable plate hook lining makes longer service life of the spreader.

 

3. Dual transformer mode

The transformer adopts the dual transformer mode of power transformer + auxiliary transformer.

 

 

4. Double Regulate

The whole crane is equipped with a backup redundant system. When a certain mechanism fails, the backup system can be quickly switched to ensure that the equipment does not stop and operates safely for 24 hours.

 

5. Safety projection warning

The system is equipped with a safety projection warning device, which can effectively remind ground personnel to perform safe operations when driving.

 

6. Safety management system

Analyze the crane's operating status, working hours and usage times of wearing parts to facilitate equipment maintenance.

 

 

7. Multiple security protection

The boarding gate is equipped with a permanent magnet door switch, and a deceleration stop alarm system is designed in the corresponding operating mechanism.

 

8. Compact structure layout

The control system has a compact structure layout, which satisfies the application functions of short-span cranes.

 

https://www.weihuacraneglobal.com/news/Weihua-300T-Overhead-Crane-for-Steel-Foundry-Plant.html

Email: weihua@craneweihua.com

WhatsApp: +86 15093392066