Mg Box Type 20 Ton Double Girder Gantry Crane

                Mg Box Type 20 Ton Double Girder Gantry Crane

Mg Box Type 20 Ton Double Girder Gantry Crane image

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Basic Info.

Model NO.

Main Girder Form
Double Girder

Working Grade
A5, A6, A7

Main Electric Parts

Weight Overload Protection Device

Traveling and Lifgint Limit Switch

Voltage Lower Protection Function

Current Overload Protection System

Phase Protection Function

Single or VFD(Vvvf)

Ohsas 18001: 1999

Transport Package
Plastic Woven Cloth, Polywood Case



Henan, China

HS Code

Production Capacity
4000sets Per Year

Product Description

Brief Introduction

Warm tips

In order to save cost and time for you,we need your provide below information:

    1.Which kinds of gantry crane do you need?

    2.FOB or CIF price?(If CIF price,tell us your destination port)


    4.Lifting capacity?(ton)
    5.Lifting height?(m)                     
    7.Working voltage?(V,HZ,Phase)
    8. Is cantilever needed? Single side or double side? Length(m)?
    9.Working environment?
   10.How many hours the crane works one day? How many times per hour?
   11.Any other requirement do you need?


Products Description
Double girder gantry crane is a variant of the bridge crane . Mainly used for outdoor cargo yard, yard goods, bulk cargo loading and unloading operations. Its metal structure shaped like a door frame, carrying the main beam install two feet down, you can walk directly to the track on the ground, both ends of the main beam may have overhanging cantilever. Double girder gantry crane with a high utilization of space, large operating range, wide adaptation, versatility, etc., are widely used in the port yard.

Double girder gantry cranes are widely used in the construction of various types of open space, such as building and bridge construction site in the back room of precast games. Industrial equipment installation site of the device stacking, assembling prefabricated parts venues. Others, such as in railway stations, docks, yard, hydropower stations, shipbuilding industry also has a wide range of applications.
In loading and unloading, double girder gantry crane can lift iron or steel blocks, cylinders and so on. It is very convenient for application in loading, unloading, and moving. Double girder gantry crane are the most ideal lifting facility for factories, docks, warehouses and transportation.

Design and produce
The profiles of the main girders of this double girder gantry crane are optimally produced, using a integrated technology which is weldless , so that maximum performance with a minimum of deadweight can be achieved.
The double girder gantry crane produced is in compliance with the national standard. The design is reasonable, the machines are of good quatity, the structure is advanced, the appearance is beautiful and the size is compact, the weight is light, and the parts have high strength, big intensity, and all these make it safe, durable. And the products are popular domestic and abroad.
We are able to design and product non-standard hoisting equipment in accordance with special requirements in span.

Mechanism Item Unit Result
Lifting capacity ton 5-100
Lifting height Main m 10-12
Auxiliary 10.72-13
Span m 18-35
 Working environment temperture °C -20~40
Speed Lifting Speed Main m/min 5.9-9.3
Aux. 8.5-16.7
Trolley 34-44.6
Cab 34.5-47.1
Working system   A5
Power source   three-Phase A C 50HZ 380V

Mobile double girder gantry crane 20 tonis mainly consisting of the skeleton structure, lifting and cross traveling 
mechanism, long traveling mechanism, cabin and electrical control system. The trolley can move 
horizontally on a pair of rails on the beam. 
The beam can be box or trussed type in according to your working environment situation. 
pressure is less than 125Pa, or more,trussed type gantry crane is always using in outdoor)
Cabin used for operating, with seats inside. Floor adopts insulation pads and toughened glass
for windows; extinguisher and fan are equipped. Other accessory equipment like air-condition, buzzer, interphone and etc. can be configured according to our client’s request!
The length of cantilevers can be designed to meet the working demands

SI Descriptions Reference Data
1 Lift capacity 3 tons ~ 300 tons
2 Span 3 meters ~ 35 meters
3 Lift height 6 meters ~ 18 meters
4 Work duty A5 ~ A7
5 Control method Remote control or Cabin control
6 Electrical parts CHINT or International brand
7 Motor Chinese famous brand or International brand
8 Paints Chinese famous brand "Lehua"
9 Bearings Chinese famous brand "HRB"
10 Lift speed 0~10M/Min
11 Cross travel speed 20~30M/Min
12 Long travel speed 30~40M/Min
Welcome to send us email or leave me message to tell me details demand so that I can sent you offer in shortest time:
1, the lifting weight (t):
2, the lifting height (m):
3, do you need cantilever.
4, span (m):
5, duty (A*):
6, power (voltage):
7, does the jib crane is needed on the gantry crane, right side or left side?
8, lifting speed and gantry travelling speed (m/min).
9, what material would be lifted? (Deciding the lift tool and gantry type)

About us
1. We are in Crane Hometown of China, could supply you the best quality crane , grab bucket and electromagnet with high technique, and the price is the best. We have exported our product more than 100 countries.
2. We could supply you all kinds of industry cranes from 0.25tons to 900tons, pass GB/T 19001-2000 idt ISO 9001:2000, GB/T 24001-2004 idt ISO 14001:2004, GB/T 28001-2001,OHSAS 18001:1999, CE,GOST and so on.

Capacity t 5, 10, 16/3.2, 20/5, 32/5, 50/10t
Span m 10.5~35
Lifting height Main hook m According to your requirements
Aux. hook m According to your requirements
Operation method   Pendent control, cabin, wireless control
Speed Lifting Main hook m/min Single or VVVF, according to your requirements
Aux. hook m/min Single or VVVF, according to your requirements
Cross travel m/min Single or VVVF, according to your requirements
Long travel m/min Single or VVVF, according to your requirements
Lifting unit type Winch+trolley
Working duty   A5, A6, A7
Power supply AC 220v/380v/400v/415v/440v, 3P

Processing Facility

Packaging & Delivery

Packaging Details
Packing & Delivery terms: 
1. Hoist and electric parts will be packed by plywood crate, for avoiding the demage from goods crash and impact during the delivery. 
2. Girders and other main parts will be packed by plastic woven cloth, for preventing rust from soppy condition during the transportation. 
3. Only the best transport solution will be taken for saving your cost uttermost on finance, security and time.
Delivery Time
Shipped in 30 days after receive deposit



We are China Mg Box Type 20 Ton Double Girder Gantry Crane manufacture and supplier,You can get more details with Email,you will get cheap price or factory price.

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