Overhead Crane - Henan Seven Industry Co., Ltd

Chinese Manufacturer and Supplier of European Overhaed Cranes

The European-style overhead crane has a unique design concept and adopts a modular design. It has the characteristics of small size, light weight, small wheel pressure, low energy consumption, good working stability, high efficiency and low maintenance. The limit distance from the hook to the wall is small, the clearance height is low, and it has a speed control system that can realize safety, accuracy and loading positioning, which can effectively save the workshop space and investment costs.
The overhead crane is widely used in steel, electric power, logistics, warehousing, military industry, petrochemical, machinery manufacturing, automobile manufacturing, waste incineration and other industrial fields. There are many derivatives of overhead bridge cranes, which provide complete solutions for the lifting, transportation and stacking work of the industrial sector. Bridge cranes can be divided into two categories: single-beam bridge cranes and double-beam bridge cranes.

Overhead Crane

The overhead cranes have wide range of applications. The single girder overhead crane is more suitable for mechanical installation and heavy lifting in factories or workshops with low headroom and short span. While, compared with the single girder bridge crane, the double girder type has a greater lifting capacity, so it is more suitable for lifting and transporting heavy tonnage objects.

Single Girder Overhead Crane

3m ~ 30m or customize

Working Duty:

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Double Girder Overhead Crane

3m ~ 30m or customize

Working Duty:

A4 ~ A7

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Underhung Cranes

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Warehouse Overhead Cranes

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Top Running Cranes

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Electric Overhead Traveling EOT Cranes

Rated lifting capacity:

1t, 2t, 3t, 5t, 10t, 16t, 20t, 32t

Working environment temperature:

-25°C - +40°C

Job level:

A3-A4

Large wheel diameter:

200-268mm

Working power supply:

3p AC 50HZ 380V

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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.

Industry Applications

Electric overhead travelling cranes are widely loved by users at home and abroad because of their excellent features and convenient operability. This machine can provide you with an economical and high-energy solution. It is widely used in steel mill, electric power, logistics, warehousing, military industry, petrochemical, machinery manufacturing, automobile manufacturing, waste incineration and other industrial fields.

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Automobile Manufacturing

Machine Manufacturing

Steel Mill

Overhead Crane Project

Rich experiences in gantry crane projects design & manufacture. One-source gantry crane project services from design, processing, delivery, installation & future maintenance & repair.

European single girder overhead crane to Ecuador

The Single Girder Overhead Crane Shipped to The Philippines

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A Set of Single Girder Bridge Crane Sent to Trinidad and Tobago

Single girder overhead crane to Trinidad and Tobago

Two Sets of LD Overhead Cranes Sent to Paraguay

Two sets of bridge cranes sent to Paraguay

Frequently Asked Questions

Are you A professional manufacturer and do you have a factory?

Yes, we’re professional crane & hoist manufacturer for 30 years, and we have our own factory in Xinxiang, China. We welcome customers from all over the country to visit our factory at any time.

How many years quality guarantee? What about the after-sale service?

24 months of quality assurance. And during the warranty period, we provide fast service within 24 hours. If there are any problems, just contact our sales team and we will solve any problems with our products.

What's the information should I provide when inquiry?

a: Lift capacity. b: Lift height. c: Span. d: Power source. e: Working environment. The more detailed the inquiry information, the better. If you have the drawing will be the best.

How can I make payment?

We accept TT bank transfer, L/C, credit card, cash, west union and PayPal.

What are your payment terms?

FOB, CIF, EXW, CER, FCA, FAC, CPT, CIP, DAF, DES.

Do you accept OEM business?

Sure, we do many OEM productions for some famous crane brand and customers around the world.

What about shipping?

We recommend small batch by the way of air or LCL, but large delivery by the way of container or bulk vessel.

How about the quality control before shipment?

Every product in our factory 100% strictly quality checked and tested with 3 steps before packing to promise all the hoists operating well before delivery.

How long is your delivery time?

The delivery time for large tonnage bridge cranes and gantry cranes is about 30 days, while the delivery time for hoists and accessories is generally 7-15 days.

Which standard of your crane and crane components apply to?

Our cranes are strictly designed and manufactured in accordance with FEM, CMAA, ISO EN, and GB standards, and our products are equipped with CE certificates to ensure compliance with European standards.