Overhead Crane - Henan Seven Industry Co., Ltd

Chinese Manufacturer and Supplier of European Overhaed Cranes

Contact us for custom design drawings and the best quote for the crane you need!

SEVENCRANE Crane is a professional bridge crane manufacturer and supplier with 30 years of industry experience. We focus on the research and development, design, manufacturing, installation and maintenance of bridge cranes. With advanced technology and strict quality management system, we provide customers with a full range of bridge crane products with multiple models. Our equipment is widely used in factories, warehouses, workshops, steel, power generation, garbage disposal, cement and other fields, aiming to provide efficient, safe and reliable lifting solutions for all walks of life.

Overhead Crane

SEVENCRANE’s bridge crane series covers single beam, double beam, top running, under suspension, electric (EOT), explosion-proof, grab and electromagnetic types. These equipments have won wide recognition from customers around the world for their excellent performance and simple operation. Choosing SEVENCRANE, you will get tailor-made lifting solutions to meet the diverse needs of various industries.

Single Girder Overhead Crane

Load capacity:

1 ton~20 tons

Lifting span:

4.5m~31.5m or customised

Lifting height:

3m~30m or customised

Power supply:

according to your power supply

Working duty:

FEM1Am~3m

Hoist unit:

wire rope hoist or chain hoist

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Double Girder Overhead Crane

Load capacity:

3 tons~500 tons

Lifting span:

4.5m~31.5m or customized

Lifting height:

3m~30m or customized

Power supply:

according to your power supply

Working duty:

FEM1Am~3m

Hoist unit:

european type hoist trolley

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4.5m~31.5m or customized

Power source:

220V~660V, 50-60Hz, 3ph AC

Working duty:

A3, A4

Crane control mode:

floor control / remote control / cabin room

Work environment temperature:

-20℃～+40℃, relative humidity ≤85%

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6, 9, 12, 18, 24, 30m

Raged voltage:

220V~690V, 50~60Hz, 3ph AC

Working duty:

A3 A4

Work environment temperature:

25℃～+40℃

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Electric Overhead Traveling EOT Cranes

Load capacity:

1~800 tons

Crane span:

4~31.5m or customized

Working environment temperature:

-25℃～+40℃, relative humidity ≤85%

Rated voltage:

220V~690V, 50-60Hz, 3-phase AC

Working duty:

A3、A4、A5、A6、A7

Crane control method:

floor control/remote control/cabin room

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Explosion-proof Overhead Crane

according your demands

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Grab Bucket Overhead Crane

according your demands

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Electromagnetic Overhead Crane

380V, 50-60Hz, 3ph AC

Crane control mode:

remote control/cabin room

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Overhead Crane Features

Design

Technology

Production

Maintenance and Security

01

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

02

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

03

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.

04

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

05

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.

06

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

SEVENCRANE's bridge cranes are widely used in various industries with their excellent performance and diverse models. In steel mills and rolling mills, bridge cranes are used to move and load and unload heavy steel to improve production efficiency. In power plants and hydroelectric power stations, cranes assist in the installation and maintenance of equipment to ensure the continuity of power production. Waste treatment plants use bridge cranes to transfer and process waste to improve processing efficiency. In addition, bridge cranes are also widely used in factories, warehouses, workshops and other places to meet various material handling needs. SEVENCRANE is committed to providing customized lifting solutions for different industries to ensure that equipment operates efficiently and safely in various complex environments.

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Automobile Manufacturing

Machine Manufacturing

Steel Mill

Overhead Crane Project

With rich experience in designing and manufacturing bridge crane projects, SEVENCRANE provides one-stop services from design, processing, delivery, installation to later maintenance and repair. Our products have won the trust of customers around the world with their excellent performance and reliability. SEVENCRANE actively expands overseas markets and is committed to providing high-quality lifting solutions to customers around the world.

European single girder overhead crane to Ecuador

The Single Girder Overhead Crane Shipped to The Philippines

The Single Girder Overhead Crane Shipped to Peru

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.