We provide different types of gantry cranes with a range of capacities and sizes to suit varied needs of clients, including single girder crane, double girder crane, semi-gantry crane, truss gantry crane and mobile gantry crane. Each equipment is specifically designed and constructed to increase your work efficiency and safety. We not only design and manufacture gantry crane equipment, but provide a comprehensive after-sales service to our clients to make sure they run smoothly. Interested in our machines? contact us today!
What is portal gantry crane?
Portal gantry crane is a kind of gantry crane, also referred to as gantry crane, and also is one of the power-driven, rail-mounted boom cranes. Its configuration can be roughly divided into two major parts: the upper part of the rotation and the lower part of the run. The upper part is mounted on a tall gantry (gantry) and can be rotated 360 ° relative to the lower part. The gantry can be orbital, while it is the load-bearing part of the crane. Crane weight and lifting by the mast to withstand, and it spreads to the ground track. The portal crane is named after this gantry base.
Different types of gantry cranes for sale
Single Girder Gantry Crane for Sale
Single girder gantry crane is one with light weight lifting, steel and electrical material savings, lower overall cost crane small beam crosswind area is small, better security and so on. The crane is a widely used material handling equipment, usually used in factories and mines, production workshop, station logistics, port and other departments.
Single girder gantry crane parameters:
- Load capacity: 3-20t
- Span: 8-35m
- Lifting height: 6-18m
- Lifting speed: 0.33-8m/min
- Trolley running speed: 20m/min
- Crane running speed: 20m/min
- Work duty: A3, A4
Compositions You Shall Know When Buying A Single Girder Gantry Crane
The crane is mainly composed of a bridge girder, trolley, running mechanism, trolley and electric equipment. The bridge adopts the single beam box type welding structure, and the trolley running mechanism is driven separately. All the mechanisms can be operated indoors or outdoors.
- Power supply: car using soft-cable power supply, trolley line power supply.
- In order to prevent the machine tilting and cart taxiing, in particular, set up a manual rail device and to anchor and other equipment.
- For safe use in harsh climates, lightning arrestors are usually installed on cranes.
- Window installation of glass, easy to clean the glass door replacement, equipped with cam controller, easy to operate.
Double girder gantry crane
Double girder gantry crane comes in A frame and U frame to suit different job requirements. The crane can be used in a variety of fields and sectors.
A frame double girder gantry crane parameters:
- Load capacity: 5-500t
- Span: 18-35m
- Lifting height: 6-18m
- Lifting speed: 1.5-11.5m/min
- Trolley running speed: 10-40.1m/min
- Crane running speed: 16-50m/min
- Work duty: A3-A7
U type gantry crane parameters:
- Load capacity: 10-50t
- Span: 18-35m
- Lifting height: 6-18m
- Lifting speed: 5.9-13.3m/min
- Trolley running speed: 31.3-40.1m/min
- Crane running speed: 40.1-44m/min
- Work duty: A5-A6
Container gantry crane
The quantity of various construction projects is constantly increasing and the intensity is constantly increasing. More and larger hoisting machines are being used in the construction of highways, railways, and bridges, among which gantry cranes, Erecting machines and gantry cranes and other forms of mechanical equipment more widely used. Gantry crane is essentially a type of bridge crane deformation, mainly for outdoor freight yard, yard cargo, bulk cargo handling operations. For road lifting equipment, gantry crane is a gantry crane, its structure has some differences, but the main application is very similar. We also use gantry cranes for loading and unloading of large containers.
Rail mounted container gantry crane parameters:
- Load capacity: 30-50t
- Span: 18-35m
- Lifting height: 12.3-21m
- Lifting speed: 9.2-12.5m/min
- Trolley running speed: 45-56m/min
- Crane running speed: 42-50m/min
- Work duty: A6-A8
The cranes are widely used at ports and railway terminals. This kind of crane is equipped with spreader.The gantry crane for yard stacking is designed with large capacity, large span and great lifting height. It helps you do the big job quickly and effortlessly.
Gantry crane buffer device is divided into three types: physical buffer, spring buffer, hydraulic buffer one is the physical buffer. The physical buffer is divided into rubber buffer and polyurethane buffer. Both have their own characteristics, the structure of a simple rubber buffer can play a blocking role, while its low price, long service life, installation, and maintenance is also very convenient, so the polyurethane buffer is currently widely used in the international community. One is the spring buffer. The structure of the spring damper is very simple, a total of three parts, namely, spring and shell. The principle of its main work is to prevent the accident from occurring when the crane hits the spring damper and converts the energy into the compression energy of the spring. The last is a hydraulic shock absorber. The working principle of this buffer is that when a crane collision occurs, the hydraulic buffer can make the various parts of the crane go through a process in order to play a buffering role.
mobile gantry crane
Gantry crane generally consists of four parts: the main beam leg car electric control part, design and installation in alliance with national standards, recommended standard design, calculation of strength, stiffness, stability and so on. Installation of each small mobile gantry crane due to different venues, the environment, a variety of different conditions and restrictions, in theory, have a set of installation programs, but the small span, small lifting weight gantry installation, specializing in the installation of workers experience is very rich, they know how to install.
Small mobile gantry crane parameters:
- Load capacity: 0.5-10t
- Span: 2-16m
- Lifting height: 2-12m
- Lifting speed: 0.9-7.2m/min
- Trolley running speed: 11m/min
- Crane running speed: 6m/minor manual operation
- Work duty: A2
Applications of Gantry Cranes
- Gantry crane is mainly used in the highway: Beam yard hanging template, crane beam, frame beam
- Railway: Beam Farm hanging template, crane beam, frame beam
- Shipyard: Hanging welded plate
- Also used in cargo handling and other occasions
Qualified standards for gantry crane
- GB / T 14406-1993 Universal Gantry Crane
- GB / T3811-2008 Design specification
- JT400-1999 Port Gantry Crane Safety Regulations
- GB/T17495-1998 Port Gantry Cranes – Specifications
- GB / T17496-1998 Technical Code for Repairing Port Gantry Crane
Gantry crane installation
- Laying a cart rail (usually by the demand side ), but before installing the mobile gantry crane must be re-testing of the track, gauge error cannot exceed 10 mm;
- Crane cart installation, to ensure the carts on both sides of the parallelism, verticality, you can pull line, pull the diagonal, all antonyms and other means to carry out correction;
- Lifting the splicing good legs, connecting it with the cart, and the wind cable tension, the general one leg 4 cables, after loosening the hook (cable fixed legs will not dump down.
- Lifting spliced good girders (girders have a piece or two, user requirements to be set) on both sides at the same time, on the erected legs.
How does the gantry crane make energy-saving emission reduction?
Gantry crane is the abbreviation of the portal crane, and energy-saving emission reduction is mainly in the crane selection and manufacturing phase, the selection of energy-saving effect of four-bar linkage gantry crane, motor selection of energy-saving motors and low resistance bearings, installation of high-efficiency frequency control system. In the operation can try to make the grab full, hook locks according to the choice of goods weight hanging crane lock. As far as possible in the production organization based on a single piece of groceries size and weight to arrange the appropriate berth and door machine operations.
What problems should pay attention to about the gantry cranes lubrication?
Lubrication did in order to ensure the normal operation of various parts of the crane and can extend the service life of the crane, at the same time, lubrication will affect the production efficiency and so on. Lubrication is a very important part of the crane’s routine maintenance. The crane lubrication is very important.
The material of lubrication must be clean, and lubricants of different brands cannot be mixed. In addition, the choice of lubricants above should be appropriate, according to the rules of regular lubrication. Always check the gland seal lubrication system.
In lubrication, to keep the power outage, so as to avoid accidents, of course, except for the lubrication of electric systems. Gantry crane lubrication, for moderately higher lubrication points, should increase the number of lubrication and installation of insulation or cooling device. Try to grease to the friction surface.
It also needs to pay attention to the sodium-based grease absorbent easy to failure, therefore, should not use this lubricant in wet areas.
Gantry cranes safety regulations
In order to avoid unnecessary losses, the crane operator needs to pay special attention to safety issues when using lifting equipment
Such as double-girder cranes, gantry cranes, hanging cranes, etc. These are the lifting equipment. For reasons of ambient safety, basic safety precautions should always be followed during installation and maintenance to prevent the risk of fire, electric shock, and personal injury. Including the following aspects:
- Never install the device in an unknown liquid pipe to prevent accidental production.
- Never install the power cord during a lightning storm.
- Do not immerse the power supply in the water.
- In any case, all matters related to product installation, modification, and maintenance, the power must be cut off before the completion of all work in order to power back.
In circumventing the relevant safety issues outside the environment. Lifting equipment installation precautions also do the following analysis:
- before the test should be checked in the case of cutting off all the power.
- brake operating mechanism, the adjustment should not be too loose or too tight, in order to prevent the car phenomenon and the impact of the phenomenon is appropriate.
- Track alignment not only to track the vertical direction of the bend but also the school lateral bending because the lateral is not straight, the wheel will be stuck in the process of crane operation, so the lateral bending is the focus of alignment.
- Platen can be used on the 3rd ordinary carbon steel, welded according to the requirements of processing.
- The joint position of two parallel rails should be staggered, and its offset distance should not be equal to the base distance of the front and rear wheels of the crane.
Wanna know similarities and differences between gantry cranes and bridge cranes in specifications, structures, working environments, welcome to Gantry Crane VS Bridge Crane.
Whatever gantry cranes you need, please feel free to contact us. We will provide you a customized plan for you immediately.