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Box girder crane project : 6.3+6.3 ton box girder bridge crane for Agriculture Australia

Why 6.3+6.3 ton box girder bridge crane is selected but not 51% cheaper LD type 5+ 5ton single girder overhead crane by Australian agricultural plant?Custom designed box girder bridge crane solution will benefit client for the long run. Read on how the Australian client get their box girder bridge crane.

Who is the Australian Client?

Based in Brisbane, Australia, the client is a manufacturer of agricultural equipment for grain crop gathering and delivery. Client found us through Google search and sent through his requirements and specifications on 15 May.

What does Australian client need?

5+ 5 ton single girder overhead crane is requested by Australian agricultural equipment plant. The Australian client is planning to expand the shed and to install two sets of overhead cranes in the new shed, and the initially they send us the overhead crane inquiry as follow:

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"We would like to know your price and availability on crane with the following specs:

  • 1 LD10 (5+5)t-20m – 4.035m A3 single girder overhead crane
  • Lifting capacity: 10(5+5) tons Span: 20meters Lifting height: 4.035meters Lifting speed: 2.7m/min CT speed: 21m/min LT speed: 20m/min Power: 415v 60hz 3phase Motor protection grade: IP54 Control method: Wireless
  • Working class: A3 Working temperature:-20~+40℃
  • 2 Runway Beam (40 m*2) 396*199*7*11mm (40m*2)
  • 3 CRANE RAIL SYSTEM (40 m*2) P38 TRACK (40m*2)
  • 4 POWER SUPPLY SYSTEM (40m) BUSBAR SYSTEM (40m)
  • CURRENT COLLECTOR 1 set
  • 5 China Domestic transportation + China Qingdao port charge
  • 6 FOB Qingdao port Price
  • 7 Sea freight to Brisbane port (40'GP)

Kind Regards,

N***n D***y
Production Engineer"

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With the specific overhead crane parameters, will Dongqi Crane quote you overhead crane right away? Don’t rush. What we offer is not just a set of overhead crane, but custom designed and complete material handling solution for your workshop.

How to find out custom box girder  crane solution

The Australian client is planning to expand the shed and to install two sets of overhead cranes in the new shed, and quick turnover is a key factor. After receiving the inquiry, Dora, one of our best sales, did not rush to just provide a quotation as requested in the initial inquiry. She invested time and efforts in background check and communication with client to better understand the client’s business needs. Let’s check what Dora did:

1. Learn your needs and application

After studying the box girder overhead crane inquiry, Dora called the agricultural equipment plant to talk with their engineer thoroughly to confirm the workshop application. Client sent through the current shed picture, machines, and shed expansion plan. And the pictures and drawing are emailed to Dongqi as follow:

Agricultural equipment workshop of Australian client

Agricultural equipment workshop of Australian client

Workshop  expansion plan drawing

Workshop expansion plan drawing

The initial requirements are two sets of traditional type 5+5t single girder overhead crane (EOT crane) travelling in the same span of the shed, and the specifications of the box girder crane is as above.

2. European spec 6.3+6.3t single girder EOT crane is recommended.

After extensive communication, we suggest two sets of European-spec 6.3+6.3t single girder EOT crane travelling in separate spans based on the production line and business needs in 3-5 years. For each EOT box girder crane, there are two lifting points as some machines are as long as 18 meters. Two lifting points can work both independently and simultaneously, which enables flexibility and ensures safety and stability when lifting long-sized machines. Control wise, one remote is able to control two lifting points, lifting both separately and simultaneously.

3. Technical details confirmed

To solve the material handling problem, we have studied every detail. With the technical support, we can help you to find out the most suitable crane solution.

During the communication, the client had a selection problem about the overhead box girder crane rails. This is how we find the suitable overhead crane rail for him.

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Thursday, 23 May 2019 12:25 PM

For the rails, do you prefer the type of square steel 50*30mm (picture below)?

If this type, as the rated capacity of the crane is bigger now, rails will be 60*40mm.

The rails need to be welded with bearing beams.

It's better that our factory does the welding, when you receive the rails, they are already connected with bearing beams.

Otherwise, you will need to arrange welders to do the extra welding after you receive them.

crane rail design for box girder crane

If the rails do not necessarily have to be square type, actually we recommend P type rails (take P30 as an example, picture below).

P30 can either be welded to bearing beams, or use bolted clamps and platens to connect.

According to our understanding of AU standard, bolted clamps and platens are better.

 

To compare these two rails, the advantage of square steel is it's cheaper (about 30% cheaper than P type).

Its disadvantage is wheels of end carriages will be easily wear off because of the square corners.

That's why square steel is now becoming less prevalent than P type when choosing rails.

When you look at P type rail, you can see the corners are round-shaped, and the round corners are to protect wheels when running.

In the long run, we recommend P type rails.

Please let me know which you prefer and I will include it in revised quotation. Thanks!

Regards,

Dora

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Hi Dora,

We are happy to go with 2x 106m of the P30 type.

Any welding required, we will do here.

Kind Regards,

N***n D***y

Production Engineer

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During the process, all details are confirmed to guarantee the box girder crane solution to be the most suitable one.

4. Final Solution: 6.3+6.3t box girder bridge crane

After all the details of the box girder crane, the final drawing with specifications was sent to clients for final confirmation.

Box girder crane desgin drawing for Australian client

Box girder crane desgin drawing for Australian client

TECHNICALDATA

  • LOAD........................................6.3t+6.3t
  • SPAN........................................20m
  • LIFTINGHEIGHT......................5.5m
  • WEIGHTOFGIRDER......................4.92t
  • WEIGHTOFCrab......................0.6t+0.6t
  • WEIGHTOFendtruck......................1.05t
  • WEIGHTOFelebox......................0.15t
  • WEIGHTOFCRANE.....................7.32t
  • THEMaxWhellload......................89.4KN
  • MAINLIFTINGSPEED..................0.7~4.0m/minSTEPLESS
  • TROLLEYTRAVERSINGSPEED............2.0~20m/minSTEPLESS
  • BRIDGETRAVELLINGSPEED..............2.0~20m/minSTEPLESS
  • LIFTINGPOWER............5.5kWx2
  • TROLLEYMOTORPOWER............0.55kWx2
  • BRIDGEMOTORPOWER...........0.75kWx2
  • SUPPLYPOWER......................13.6kW
  • POWERSUPPLY.....................415V/3P/50Hz
  • RAILTYPE.......................P30
  • CRANEGROUP.......................FEM2m(A5)
  • LIFTINGGROUP..FEM2m(M5)
  • TROLLEYTRAVERSINGGROUP........FEM2m(M5)
  • BRIDGETRAVELLINGGROUP........FEM2m(M5)
  • CONTROLMETHOD.....................RemoteControl
  • Craneuse.............Indoors
  • Temperature............-10-40

Compared with original quotation, the final quotation of the 6.3 + 6.3 ton box girder crane is 50.5 % up and the box girder crane is more suitable for the application and the future needs of the client, which also win the positive confirmation of the client.With professionalism, Dongqi Hoist and Crane is aiming to provide the most suitable crane solution for you and your future needs.

What about crane fabrication and packaging?

With positive reply, the production of box girder crane is on the agenda. During each production process, the production pictures of the box girder cranes are emailed to client to let you know every details of your crane.

Yuantai Crane, Dongqi Group, applied deep understanding of Australian crane standard (AS 1418.1) in the crane design and later in fabrication, painting, and seaworthy packaging.

We owed thanks to Yuantai Crane’s partner based in Melbourne who helped us a great deal in understanding the Australian Standard for Crane and Hoist. Our partner also contributed time and crane expertise in the communication with client to help finalize the details.

Main girder of 6.3 + 6.3 ton box girder bridge crane

Main girder of 6.3 + 6.3 ton box girder bridge crane

6.3 ton box girder crane parts

Main parts of box girder crane: crane bridge grider, end carriage, and european standard wire rope hoist

What is the result we delivered?

Professionalism and quick execution wins 100% satisfaction. Client placed the order and paid deposit on 29 May (two weeks after the inquiry date). We kept our promise in a short lead time from fabrication to shipping. The client speaks highly of our professionalism and quick execution.

Fabrication and Painting completed on 25 June (4 weeks after deposit)

Bulk Cargo onboard on the night of 16 July

Box girder bridge crane delivery australia

6.3 ton + 6.3 ton Box girder bridge crane delivery Australia

Box girder crane delivery

What does Client say and what do we aimat?

6.3 ton+ 6.3 ton box girder bridge crane wins Australian client's 100% satisfaction.

“You have been very helpful and accommodating to our requirements, thank you.”“I have business with several Chinese companies but you have been the best so far!”

6.3 ton+ 6.3 ton box girder bridge crane wins Australian client's 100% satisfaction

Custom designed 6.3+6.3 ton box girder bridge crane is for sale Australia for agricultural equipment handling , the crane price of which is 50.5% up than LD 5 ton + 5 ton single girder overhead crane. Why 6.3 +6.3 ton box girder bridge crane is selected? Custom design of the box girder bridge crane is the key, which will benefit the client for a long run. As mentioned by Dora, we aim to solve client’s problems and provide suited lifting solution. Not easy, but on the way! Contact to get your custom bridge crane solution now.

Want your custom designed cranes? Contact Dora!

box grider crane sales

Dora Pan

I want to build a seamless web of network based on deserved trust both in my personal life and career. Having lived and worked both home and aboard, I found it natural to communicate with and understand people of different countries and various backgrounds. I have found my passion to provide clients with suited lifting solutions to help them solve problems and meet business needs in the long term. In short, I don’t aim to be just a supplier; what I aim to be is your partner!


 

 

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