25 ton Gantry Crane: Single Girder or Double Girder?

25 ton gantry crane for sale Australia case study . 25 ton single girder gantry crane, efficient & cost-effective gantry crane for sale good price.

Background of Australian client

The customer is an Australian coal mining service company located in Newcastle, New South Wales, Australia, mainly providing equipment and labor for the mining, civil and construction industries in Australia.

Initial inquiry:

The Australian customer's initial demand is 2 sets of 25 ton double-girder gantry cranes, with a span of 20M and a lifting height of 7M. The customer purchases the gantry crane for the purpose of overhauling and maintaining the coal mine machinery and equipment in the workshop.

Finalized main specifications of the gantry cranes

Gantry type: MH single girder gantry crane with electric hoist
Crane capacity : 25 ton
Crane span ：16M
Application: Indoor use for coal mine machinery handling and maintenance
Overall lifting height of gantry crane : 9M
Hoisting system : MD double speed electric wire rope hoist , lifting height can be up to 5.72 m.
Working class: A4

Detail communications of the 25 ton gantry crane

Question 1: The customer's factory has restrictions on the total height of the gantry crane what should we do if the height is not as high as the customer's requirement?

When the customer plant has height restrictions but the customer has high requirements, the following design can be considered when choosing a plan:

Low headroom MD electric wire rope hoist;
European-style hoist: hoist can not reach 25 tons,
Low headroom hoist crane with hoist hang on the aside of the main girder is a also an solution but the Australian customer thinks the appearance of the partial hanging low headroom hoist crane is not good-looking;
Double beam or double girder gantry crane and the price is too expensive.

And then? Where to go? Which type of gantry crane design is suitable for the Australian client and at the same time cost-effective?

Do not worry. Check our material handling crane solution for the coal mine machine maintenance.

A 25 ton MH single girder gantry crane is equipped with a low headroom MD electric wire rope hoist with double speeds. The total height of the single beam gantry crane is 9M, and the lifting height is 5.72M.

After confirming the price and the final production drawing with the customer, the factory proposed the limit factors for the left and right operation of the gantry crane hook, and it is necessary to confirm whether the hoist needs to pass the outrigger during actual production.

Question 2: What should I do if there are changes after the plan is confirmed?

(Plan A) :The default design is that the electric hoist will not surpass the outrigger, and the limit distance between the left and right hooks is not discussed with the customer, the plan remains unchanged, and the price remains unchanged;

(Plan B ): Explain the left and right limit distance of the hook, confirm with the customer whether it has any impact, and then confirm the customer's choice, the plan changes, and the price changes;

Final Solution: Considering the actual application of the Australian customer, understand the position of the lifted goods with the customer, and explain the left and right limit distance of the hook. If the limit distance needs to be shortened, we will revise the production plan.

In the end, the customer chose the hoist travelling across the outrigger.
The left and right limit distance of the hook was shortened to 0.85M.
The upper width of the outrigger was increased,
and the total amount of the single girder gantry crane is increased .

25 ton single girder gantry crane drawing Gantry Crane design drawing for clients - Yuantai Better Crane Provides Tailored Gantry Crane Services for Clients Based on their Lifting Requirements & Applications.

Critical Support and Helps During Crane Design Revision

Key 1. Learn from the team: communicate with the supervisor, and give more plan suggestions and customer tracking guidance based on experience;
Key 2. Technical department: Provide detailed and clear technical drawings according to the parameter changes and high requirements put forward by customers

Necessary certificates and documents

In the following, these are the certificates and documents required during the 25 ton single girder gantry crane for Australia, which are presented for your reference.

Test certificates ：
For Australian registration, we need certificate saying crane built to ISO standard,NDT (non destructive testing) certificate of welding,Spare parts manual,operation manual,electrical drawings,installation and assembly instructions.

What types of certifications and documents are required for exporting hoists and cranes to Australian ? We just name a few for above for your reference. If you need to know more , please feel free to contact us.

Documents required after delivery:

What are the documents required after delivery the 25 ton gantry crane to Australia?

Commercial invoice
Packing list
Bill of lading
Certificate of origin issued under CHAFTA
Packing declaration
Nuft/asbestos declaration,
Others.

Shipping of 25 ton gantry crane

It was initially confirmed that a 40-foot and a 20-foot were shipped to Newcastle, Australia; later the actual transportation was two 40-foot;Newcastle Port Newcastle is an inland seaport, no ships arrive. It needs to be transported to Sydney Harbour first, and then transported by rail to Newcastle.

Summary: What factor will affect the gantry crane price ?

Single girder or double girder ?

If the lifting capacity of the gantry crane is too large, it is recommended to confirm with the technology and procurement whether it can adopt the a single beam gantry crane design or not . After understanding the completion status, and the single beam gantry crane scheme is the preferred plan.

With cantilever or without cantilever?

It is very important to confirm with the client about the gantry cantilever effectively. With effective communication, the positioning of the loads and the limited position of hoist hook travelling will affect the design of gantry crane cantilever, which will affect the price of gantry crane largely.

Indoor use or outdoor use?

Learn as much as possible about the customer's working conditions and whether the use environment is indoor or outdoor.

For general indoor use, pay attention to confirming the total height of the customer's plant and the customer's high requirements in advance, which will affect the selection of the quotation plan.
If it is for outdoor application, and the lifting height of the gantry is super large. It is necessary to confirm with the customer in advance whether the lift includes the underground height.
The length of the outrigger of the gantry crane is too long, and the cost of cutting the outrigger should be considered when quoting for container loading;

Shipping cost: Container or bulk carrier?

If container, it is necessary to confirm the number of containers before hand. The main girder and outrigger of the gantry crane will take up a lot of space. No matter it is containers or bulk carriers, the shipping cost will vary largely with time difference. Contact us to learn more about it by leave a message below.

Main girder and supporting legs of 25 ton gantry crane

Parts of 25 ton gantry crane

Electric wire rope hoist of 25 ton single beam gantry crane

Main parts and components of 25 ton single girder gantry crane