Four-link Portal Crane-HENAN COVINI CRANE CO.,LTD

Steel Industry

The metal production industrial has the molten metal, severe heat, dusty, dangerous load and continuous production demands. We work with you to lift heavy and dangerous items throughout the operation process, from transporting raw material, to pour hot metal, to lift finished products in the rolling mill. Covinicrane design crane for steel industry with safety first, robust design, high performance advantages.

Port Machines Industry

The port crane is a mechanical equipment that lifts the goods from the quayside to the ship or unloads the goods from the ship to the quayside. Container crane is a kind of crane used for loading and unloading containers. It is mainly used for container stacking and horizontal transportation in docks and stackyards. Compared with forklifts, it has the advantages of flexibility, ease operation, good stability, and low wheel pressure, high stacking layers, and high utilization rate. It can carry out cross-container operations, especially suitable for container loading and unloading in small and medium-sized ports, railway transfer stations and other places.

Shipbuilding Industry

The shipbuilding and maintenance industry remains a cornerstone of global trade, naval operations, and maritime infrastructure. From constructing massive cargo vessels to servicing smaller fishing boats, this sector requires a blend of engineering expertise, precision logistics, and technological innovation. With the global shipping demand steadily increasing, shipyards and maintenance facilities face both exciting opportunities and pressing challenges.

General Manufacturing Industry

A general manufacturing crane, also known as an industrial crane, is a type of crane specifically designed for use in manufacturing facilities, warehouses, and industrial settings. These cranes are versatile and commonly used for lifting, moving, and positioning heavy loads within the manufacturing process. Experience the ultimate in lifting solutions with our wide range of cutting-edge equipment and services. From workstation lifting systems to overhead cranes, we provide the perfect tools to optimize your workflow. Our industry-leading lifecycle services cover all types and makes of industrial cranes and hoists, while our sustainable lifting solutions cater to a diverse range of applications. With a focus on safety, productivity, and sustainability, we aim to enhance your operational efficiency.

Logistics & Transportation

Modern logistics is transforming from traditional cargo handling centers to comprehensive logistics hubs. Here, container terminals, storage yards, multimodal transportation, and value-added logistics parks operate as a coordinated system. Efficient logistics operations now rely on seamless collaboration among material handling equipment, transportation infrastructure, and storage yard layout design to ensure safety and long-term cost optimization.

Precast Concrete Production

In the precast production and processing industry, cranes are crucial to achieving efficient and safe production. Covinicrane’s material handling solutions provide comprehensive crane systems tailored to meet the industry’s needs. Our solutions ensure safer and more efficient handling of heavy and large precast concrete components throughout the production, transportation, and installation phases. As a leading supplier of lifting equipment, COVINICRANE specializes in the design, manufacturing, sales, transportation, and installation of various cranes, including gantry cranes, rubber tyred gantry cranes, and overhead cranes. Our cranes, with lifting capacities ranging from 10 to 500 tons, are ideal for lifting precast concrete components, steel prefabricated components, wooden building components, composite material components, and other prefabricated elements. We assist you in selecting the appropriate crane based on your application and the materials you need to lift. Overhead cranes, gantry cranes, and rubber tyre gantry cranes are highly favored for lifting and transporting precast concrete components. They significantly enhance operational efficiency, reduce labor costs, and ensure safe handling of heavy loads, thereby minimizing the risk of accidents and safeguarding the safety of on-site workers.

Road & Bridge Construction

In modern road and bridge construction, efficiency, safety, and precision are critical. Heavy and oversized components such as pre-cast beams, bridge segments, and concrete girders must be transported and lifted accurately to ensure timely project completion. High-quality lifting solutions play a pivotal role in meeting these demands, providing reliable performance, and reducing construction risks.

Garbage Disposal Industry

The semi-automatic control grab crane for garbage handling is the core equipment of the garbage feeding system of the municipal solid waste incineration plant. It is located above the garbage storage pit and is mainly responsible for the feeding, handling, mixing, picking and weighing of garbage. Our team of experienced engineers has extensive knowledge in waste and biomass handling, enabling us to provide reliable and efficient lifting solutions for WtE facilities. We understand the unique challenges and requirements of this industry, and our expertise can help simplify complex decision-making processes.

Oil and Gas Industry

In the oil and gas industry, professional cranes and other lifting equipment play a crucial role in the transportation and packaging of raw materials, as well as the storage and distribution of finished products. Especially in environments that are flammable and explosive, appropriate lifting equipment can significantly reduce the risks associated with manual operations and ensure the smooth progress of the production process. Choosing lifting equipment specifically designed for the oil and gas industry has become a key factor that companies aiming to enhance production efficiency, ensure product quality, and maintain safety standards must consider.

Product Introduction

Portal cranes are widely used in ports, docks, yards and other places to complete the loading, unloading and transshipment operations of ships and vehicles. Its design, manufacture and inspection implement DIN, FEM, IEC, AWS, GB and other domestic and foreign advanced standards and the latest national standards.

Portal cranes are divided into two types: single boom and four-link boom type according to the structure of the boom. The four-link portal cranes use the combined arm frame system to achieve the horizontal movement. It has the characteristics of small horizontal gap, stable variable amplitude, and low power consumption. At present, the main product specifications are MQ1025, MQ1030, MQ1625, MQ1630, MQ1635, MQ2525, MQ2530, MQ2535, MQ4025, MQ4030, MQ4035 single boom and four-link boom portal crane.

Portal Crane Parts

The structure of the portal slewing crane can be mainly divided into two major parts, including the upper slewing part and the lower non-slewing part. The upper slewing part includes boom system, herringbone frame, slewing platform, hoisting mechanism, slewing mechanism, luffing mechanism, machine room, and driver's room, etc., while the lower non-slewing part mainly consists of gantry, equalizing beam, running cart, rail clamping device, and windproof anti-tipping device, etc.

Technical Data

Main Technical Parameters
Basic Parameters	Rated Lifting Capacity	Hook (t)	10	16	25	40	60	80
	Rated Lifting Capacity	Grab(t)	10	16	25	40	40	40
	Min. Working Range (m)	Above the Rail Surface(m)	20	25	25	28	30	35
	Min. Working Range (m)	Below the Rail Surface (m)	10	10	15	15	18	20
	Max.Working Range(m)		30	35	35	35	40	45
	Min.Working Range (m)		8.5	8.5	9.5	11	12	12
	Slewing Radius of Tail(m)		6.5	7	7.5	8	9	9.5
	Rail Gauge(m)		10.5/12	10.5/12	10.5/12/14	10.5/12/14/16	12/14/16	12/14/16
	Base Distance(m)		10.5/12	10.5/12	10.5/12/14	10.5/12/14	12/14/16	12/14/16
Speed	Lifting Speed	Full Load(m/min)	40	40	50	50	40	30
	Lifting Speed	No Load(m/min)	60	60	80	80	70	50
	Luffing Speed(m/min)		40	40	50	50	30	30
	Slewing Speed(r/min)		1/1.2/1.5	1/1.2/1.5	1/1.2/1.5	1/1.2/1.5	0.8/1	0.8/1
	Crane Traveling Speed (m/min)		25/30	25/30	25/30	25/30	25/30	25/30
Number of Wheels			16/20	20/24	24/32	32	32/40	40
Max.WheelLoad			250	250	250	250	300	300
Rail Type			QU80	QU80	QU100	QU100	QU100	QU100
Power Suppl			3 phase AC 380V 50HZ

Features

Classic Four-bar Combined Jib Structure: Closed four-bar linkage mechanism composed of main boom, fly jib, tie rod and frame. Realizes automatic horizontal lifting hook compensation during luffing process, no frequent height adjustment required, with ultra-stable cargo hoisting performance.
360° Full-circle Unlimited Slewing System: Heavy-duty slewing bearing structure, full-range angular operation without dead zone, fully covering all working areas of ship deck and wharf yard.
Rail-mounted Portal Traveling Base: Stable portal gantry base with rail traveling wheel set, capable of reciprocating moving along wharf rails. Excellent anti-overturning performance under heavy load, with wind-proof anchoring and rail clamping safety devices.
High-performance Heavy-duty Lifting System: Variable frequency winch lifting mechanism with large lifting height, covering above-rail and under-rail deep cabin lifting demand. Reliable heavy-load braking and overload safety protection.
Multi-purpose Universal Spreader Adaptability: Freely adaptable to hook, bulk cargo grab bucket, container spreader and customized special lifting tools, realizing integrated multi-scenario lifting operations.
Marine Environment Heavy Anti-corrosion Design: Whole-machine heavy anti-corrosion coating process, fully adapted to high-humidity, high-salt spray, strong wind outdoor coastal working environment with long service life.

Advantages

Unique horizontal amplitude variation performance, greatly improves operation efficiency and reduces driver operation difficulty.
Ultra-large working radius, full coverage of ship cabin and wharf handling area.
Excellent heavy-load stability and structural rigidity, wide tonnage range from 10T to 200T customizable.
High versatility, one equipment for multiple operations including bulk cargo handling, general cargo hoisting and shipbuilding hoisting.
Mature reliable mechanical structure, low later maintenance cost and long continuous working life.
Perfect adaptability to harsh coastal port climate conditions.

Application

Coastal & Inland River Ports: Vessel-shore transshipment of general cargo, bulk materials (coal, ore, grain) loading and unloading operations.
Shipbuilding & Ship Repair Yards: Hoisting of hull sections, marine equipment and outfitting parts for ship construction and overhaul.
Marine Engineering Terminals: Heavy steel structure and offshore module hoisting and transshipment.
Industrial Heavy Wharves: Large mechanical equipment port hoisting and on-site transferring operations.

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Four-link Portal Crane