Electric Overhead Traveling EOT Cranes

Single Girder Eot Crane VS Double Girder Eot Crane

Electric single girder eot crane is a kind of lifting equipment widely used in mechanical processing, assembly, repair and warehouse and other workplaces. It is used in conjunction with electric hoists, electric chain hoists, etc., and is an important tool for modern industrial enterprises to achieve mechanization and automation of production processes. This equipment can not only reduce the physical labor of workers, but also significantly improve labor productivity.

Parameter information：
Capacity: 1~20ton
Span length: 4~31.5m
Work duty: A3, A4
Raged voltage: 220V~690V, 50-60Hz, 3ph AC
Work environment temperature: -25℃～+40℃, relative humidity ≤85%
Crane control mode: Floor control/Remote control /Cabin room

Application areas:
1. Machining: used to lift and move heavy machinery and equipment.
2. Assembly: used to assemble various products in production lines.
3. Repair: used to carry heavy objects in repair workshops to facilitate repair work.
4. Warehouse: used for loading, unloading and storage of goods.

Options & Components: Main beam, end beam, electric hoist, crane drive, crane motor, crane wheel, hook pulley, end stop bumper, electrical cabinet, control mode

Advantages：
1. Strong applicability: suitable for various working conditions and able to meet different work requirements.
2. Mature technology: The equipment technology is mature, safe and reliable, and easy to operate.
3. Stable operation: Provides smooth operating performance and reduces failure rate.
4. High flexibility: Can be customized according to the unique conditions of the factory to meet changing needs.
5. Space saving: Due to its installation on the upper part of the factory, the electric single-beam crane occupies the least ground space and has the least obstacles within the moving range.
6. Cost-effectiveness: It is one of the most cost-effective lifting equipment in medium and heavy loads.

Electric double girder eot crane is a multifunctional lifting equipment widely used in the industrial field, mainly used for material lifting, equipment installation and maintenance. The equipment consists of a main beam, a trolley running mechanism, a trolley, a driver’s cab and electrical equipment. It has the characteristics of mature technology, safety and reliability, easy operation and stable operation. It is one of the most widely used cranes at home and abroad.

Parameter information：
Capacity: 5~800/15ton
Span length: 4~31.5m
Lifting height: 3~50m
Work duty: A4, A5, A6,A7
Raged voltage: 220V~690V, 50-60Hz, 3ph AC
Work environment temperature: -25℃～+50℃, relative humidity ≤85%
Crane control mode: Floor control / Remote control / Cabin room

Application areas:
1. Material lifting: effectively lifting and moving all kinds of heavy objects.
2. Equipment installation: used for installation and commissioning of large mechanical equipment.
3. Maintenance work: convenient for moving and repairing heavy equipment in the maintenance workshop.

Options and components: main beam, end beam, platform and railing, lifting mechanism, trolley traverse mechanism, crane travel mechanism, hook set, coupling and drive shaft, wire rope, wheel set, brake, reducer, engine, buffer and limit switch.

Advantages:
1. High load capacity: Compared with single-beam cranes, double-beam cranes have higher load capacity and are suitable for heavy-duty operations.
2. Long span: It can cover a larger working range and is suitable for large factories and warehouses.
3. Flexible configuration: It can be flexibly configured and customized for different working conditions (such as the steel industry, explosion-proof places, etc.).
4. Double main beam design: The double main beam and double track structure are adopted to improve stability and safety.
Independent lifting mechanism: The main and auxiliary lifting mechanisms are independent of each other, and can complete the lifting work independently or in coordination, which improves the working efficiency.
5. Mature technology: After years of development, the electric double girder eot crane has become relatively mature in technology, ensuring safety and reliability.

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.

industrial underhung bridge crane manufacturers

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.

movable ceiling mounted bridge crane suppliers

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.

SUCCESSFUL PROJECT

Check Some Of Our Recent Works For Customer