2017年7月21日星期五

Electric Wire Rope Hoist Typical Cases and Solutions

Electric wire rope hoist typical cases and solutions are our sales manager Ada Yuan summarized from her experiences. If you have similar problems with your factories’ electric hoists, you can use them for reference.

Case one: Electric wire rope hoist lifting motor

  • Electric wire rope hoist specifications:
  • Lifting capacity: 2ton
  • Lifting height: 120m
  • Application: Building material handling.

With the installation manual of electric wire rope hoist, the client successfully finished the work and next is the wire connection. According to wire diagram, all the connections are seems no problem, client feedback that hoist traveling is normal, but the lifting motor has no action.
DONGQI CRANE technically advise to check the wire connections and test each point of wires to make sure it is connected with power, unfortunately, this solution doesn’t take effect; Electrical engineer gave suggestion to connect the lifting motor with the general power source directly to test the motor itself, but it is not easy to do this, because the hoist has been installed on the building(DONGQI CRANE sincerely advise to assembly and do commissioning of all the parts before mounting the hoist, it is easier to do adjustment at ground). At last, DONGQI CRANE shares the third solution: to check the power cable size, after confirm with client, DONGQI CRANE judge that the power cable size is too small to support the hoist lifting, take replace of the small size cable by bigger one, the lifting motor returns to normal condition.
This is a very typical electric wire rope hoist installation case, if clients choose to install the hoist by themselves, we must stress again that repeat testing and commissioning is very necessary especially for wire connections.

Case two: low headroom electric wire rope hoist balance weight

  • Electric wire rope hoist specifications:
  • Lifting capacity: 10t
  • Lifting height: 5m
  • Application: molds lifting and changing production hall

Low headroom electric hoist is very popular with clients who has very limit space in their workshops, it can improve the lifting height and take full use of workshop space, with similar European design, low headroom electric hoist has very good performance during operation, but lower price comparing with European hoist, higher performance comparing with ordinary CD hoist, therefore, it is the first option among clients.
But there is one very important point: low headroom electric wire rope hoist is not balanced, there will be some steel scrap delivery with the hoist, some clients maybe don’t know this, when they see the scrap, they think it is the waste, and throw away, these scrap are balance weight for the hoist, it is used for level the other side, to make the hoist stable, the weight of the scrap is measured before delivery.
The scrap can also be replaced by stones, so if the scrap is thrown away, stones are the best replacement.

Case Three: electric hoist overload limiter installation and commissioning

  • Type: electric wire rope hoist
  • Lifting capacity: 5ton
  • Lifting height: 14m
  • Application: Power plant

Overload limiter Is part of the electrical connection, it should be installed according to the manual and the position is general on top of the wire ropes, after installation, correct commissioning is very important, or it will show wrong figures to lead to danger. Correct commissioning method is to make the empty hook 1m from the ground and reset the overload limiter to Zero position, then following operation is safe and in order.
All the above electric wire rope hoist cases are summarized from our client feedbacks, DONGQI Group expects to continue to improve itself through communicating with clients and provide the most suitable economical solutions for clients, if you have any question, DONGQI Group is very pleased to help.

2017年7月19日星期三

Lever Hoist |Hand Chain Lever Hoist |Wire Rope Pulling Hoist

The lever hoist is a classification of manual hoist.Lever hoist is a simple to use, easy to carry manual lifting tool. Lever hoist can be promoted, traction, drop, calibration and other operations. From the general weight of not more than 50T. The lever hoist is mainly divided into hand chain lever hoist and wire rope pulling hoist.

VA Type Lever Hoist

VA type lever hoist rated lifting capacity is 750kg, 1500kg, 3000kg, 6000kg and 9000kg.The VA type chain lever block is widely used in factories, mines, construction areas, docks and transport conditions. It is the ideal tool for equipment installation, object lifting, object fixing, banding and towing, especially suitable for towing of random angle and working in scanty place, open air and place with no power supply.

VA Type Lever Hoist Features

  • Torque control mechanism
  • Quenched and tempered hooks are safe even when accidentally overloaded
  • Shock-resistant gear cover and brake cover locking out dust and rain
  • Bolted rubber grip assures safe and operation
  • Extraordinary braking force, easy release and the finest antirust treatment
  • The brake mechanism is designed to avoid seizin
  • The chain stopper protects the body
  • A special surface-treated, rust resistant load chain
  • Super strong load chain for heavy duty use

Main Performance and Technical Specification


VL Type Lever Hoist

VL series lever hoist is a kind of portable and versatile hand–operated loading and pulling appliance, which is capable of being applied in electricity, mines, ship buildings, construction sites, transports, post and telecommunication for installing equipment, lifting goods, pulling mechanical parts, bulk strapping and fastening, tightening fitting of wires, assembling and welding etc. It has exceptional advantages particularly for pulling in every limited narrow places, in the upper air high above the ground and at any angles.

VL Type Lever Hoist Features

  • Light weight and robustly constructed
  • High tensile alloy chain and hook
  • Minimum headroom required and very versatile in operation
  • 360°rotating handle is easy to operate in a narrow space
  • Power coated finish, very durable against knock and abrasion
  • Automatic Weston brake with unique twin pawls is well protected
  • Rubber grip for non-slip handing

Main Performance and Technical Specification


VD Type Lever Hoist

Before using the VD type lever hoist, familiarize yourself with main parts is very important. Always check the hoist for proper operation before using and not using the malfunctioning hoist. Read and understand this manual will help to reduce the risk of injury.

Main Performance and Technical Specification


Wire Rope Aluminum Alloy Lever Hoist

Wire rope aluminum alloy lever hoist applies to narrow restricted space. For field working, aerial working, trenches, Sham Tseng iob and non-electromechanical energy supply lifting operation has superiority.

Wire Rope Aluminum Alloy Lever Hoist Working Principle

Wire rope lever hoist, also known as wire rope traction machine, wire rope pull machine, is a new, efficient, safe and durable lifting machinery products, with lifting, traction, tension three functions, the whole structure of a reasonable design, high safety factor, long life, especially for the field without power source status under.
Wire rope aluminum alloy lever hoist is leveraged by hand, with the aid of the principle of leverage to match the load to match the linear traction, the role of rotation on the movement of a clamp body to drive the load operation.

Main Performance and Technical Specification


Lever Hoist Maintenance Methods

  • After the use of lever hoist should be cleaned up, and coated with anti-rust grease, stored in a dry place.
  • Lever hoist maintenance should be familiar with the gourd institutions, and avoid the random disassembly of the performance principle of the machine.
  • Gear installation according to the drawings.
  • When the groove nut is installed, turn the handwheel clockwise to make the ratchet wheel and the friction plate pressed on the brake air seat.
  • Lever hoist after cleaning inspection and maintenance, should be carried no load and heavy load test, to confirm the work is normal, automatic and reliable to use. The friction surface of the brake must be kept
If lever hoist equipped the special device, not only can be used for non-linear traction operation, and can easily choose the appropriate operating position, or smaller tonnage of equipment to expand its load capacity, for larger tonnage load can be used several parallel operation.

2017年7月14日星期五

European overhead crane transaction case for Trinidad and Tobago customer

In October of 2016, Yuantai Crane, the branch company of Dongqi Group, attended the Canton Fair and received the lifting requirements of a Trinidad and Tobago customer who needs proper material handling equipment in the workshop. The Trinidad and Tobago customer is a boss who knows the crane, but he’s not confirmed with main parameters or specifications of overhead crane, such as, span, etc. Just know the capacity and European type crane. Well, it is not a problem for Yuantai Crane. It’s our specialties to find the most suitable material handling equipment for your application.
WEBSITE:www.craneskit.com EMAIL:sales@craneskit.com
After talking with the Trinidad and Tobago customer, Yuantai Crane learnt that the warehouse has been finished and just need crane and rail. So he sent me the workshop drawing to confirm the span and lifting height.

According to the workshop drawing, our engineer confirmed the span and lifting height and designs the European standard single girder overhead crane drawings. And then we quoted the price to my customer.

After received the price quotation and technical drawing of the European standard single girder overhead crane, the customer comments:
“Thank you for the price quotation and the technical drawings and information about the crane. I am very impressed by your Chinese efficiency and very prompt communication.
This design can meet our request. Additionally, I wanted to purchase some spare parts also, I would prefer to purchase them from you. In the meantime please send your deposit contract through Alibaba so we can send deposit.”
To be honest, Yuantai Crane is very glad to hear that our customers are satisfied with our service. Because in our Yuantai Crane, high quality is what we pursue and satisfying consumers is what we promise.

Inspection of European single girder overhead crane in our factory

In February of 2017, the Trinidad and Tobago customer visited Yuantai crane and checked his order. The Trinidad and Tobago customer gave Yuantai crane high praise and said that the quality of Yuantai crane products is equal to European brand. The Trinidad and Tobago customer is very satisfied with this business traveling and told Yuantai crane that they will pay balance payment soon and also purchase chain hoist.
Packaging of electric trolley winch crane at site
In order to ensure the safety of the electric trolley winch crane during the transportation, Yuantai Crane selects the most suitable and cost-effective package methods accordingly based on the requirements of customer and the crane engineer’s tips.

All European overhead crane parts are packed by high quality plywood crate


From this experience, we know that we should not only have the good quality European standard single girder overgead crane but also needs good service and make our customer enjoy this business. Customers are God. And I’m very proud of Yuantai Crane Dongqi Group who has done well and always fo European standard single girder overhead crane

About this project of European standard single girder overhead crane

Electric standard single girder overhead crane is a kind of lifting equipment which is used in workshop, warehouse and yard to lift the materials or loads. It has such design concepts as small dimension, light dead weight.

Compared with traditional cranes, the limiting distance is small from hook to wall, and headroom is the lowest, which makes cranes work more close to the front, and lifting height is much higher, which increases effective working space of workplace. New workshops can be designed smaller and have more functions, because the dead weight is very light and the wheel pressure is small. Smaller size workplace means saving a huge amount of money from initial construction investment, long-term heating, air conditioning and other maintenance free.
WEBSITE:www.craneskit.com 
EMAIL:sales@craneskit.com

2017年7月5日星期三

5 Sets European Type Overhead Cranes for Haiti Customer

One set 20 ton double girder overhead crane and four sets 5 ton single girder overhead crane for Haiti customer. Dongqi sales manager Oscar describes this crane order process so that we can learn more about our crane design and how to get suitable and economical crane for your factory.

5 Ton Single Girder Crane and 20 Ton Double Girder Crane Inquiry

In April of 2017, We HENAN YUANTAI CRANE MACHINERY IMPORT&EXPORT CO., LTD, attended the 121th Canton Fair in Guangzhou. On 15th April,our Haiti customer visited our booth , talked with Mr Oscar and told us their overhead cranes requirement: one set 20T double girder overhead crane and four sets 5T single girder overhead crane. The Haiti customer is a boss who knows only the approximate parameters of these cranes, such as the capacity, the span and lifting height etc., and all these five overhead cranes required European model crane, so we quoted him a price and drawings accordingly, it is really a pleasant meeting for both of us. We were always contacting each other after coming back from Guangzhou.

Introduction of required European standard overhead crane

According to Haiti customer’s warehouse conditions, we suggest the European model overhead cranes.Below is the introduction for European model overhead cranes:
Electric standard overhead crane is a kind of lifting equipment which is used in workshop, warehouse and yard to lift the materials or loads. It has such design concepts as small dimension, light dead weight. Compared with traditional cranes, the limiting distance is small from hook to wall, and headroom is the lowest, which makes cranes work more close to the front, and lifting height is much higher, which increases effective working space of workplace. New workshops can be designed smaller and have more functions, because the dead weight is very light and the wheel pressure is small. Smaller size workplace means saving a huge amount of money from initial construction investment, long-term heating, air conditioning and other maintenance free.


Detailed design of these European standard overhead crane:

After talked with the Haiti customer, we knew that they have finished there warehouse, then send us their two warehouse drawings from which we knew that 4 sets single girder overhead cranes used in one warehouse, the other 20 ton double girder overhead crane used in another warehouse, below is the warehouse drawings:

According to the two workshop drawings, our technical department confirmed the detailed span and lifting height, our engineer gives the final designs of European standard overhead crane drawings, then we send the exact quotation to Haiti customer accordingly. Below is our designs for two modes overhead cranes:


After received the updated price quotation and technical drawings of the European standard overhead cranes, our customer sent us their warehouse supplier’s contacts information to confirm H model support beam model. After discussed with Haiti customer, they decided to buy all these two warehouse H model support beam from us, below is the H beam models we designed:

Signed the contract of these European standard overhead cranes

After confirmed the final quotation with H model support beam, the final customer ask Mr Oscar to send them the contract, Mr Oscar prepared the detailed contract on which he listed the detailed European overhead cranes parameters, the total amount of USD120354 and related commercial terms, then send to our Haiti customer. No any comments,Haiti customer signed the contract and transferred the 50 % down payment on 20th June, after confirmed with our bank, HENAN YUANTAI CRANE MACHINERY IMPORT&EXPORT CO., LTD started the fabrication since 23th June.
After signed the contract, Haiti customer told Mr Oscar that “Mr Oscar, I am so glad to know you and your company HENAN YUANTAI CRANE MACHINERY IMPORT&EXPORT CO., LTD, you are really an professional and kind sales director, we are very satisfied with you and your company, hope the five overhead cranes quality will be very good, so we can have a long cooperation in the future, well done Mr Oscar.”
To be honest, HENAN YUANTAI CRANE MACHINERY IMPORT&EXPORT CO., LTD is very glad to hear that our customers are satisfied with our service. For us, high quality is what we pursue and satisfying consumers is what we promise.

Follow-up for European overhead cranes’ fabrication process, package and shipment

Now these five cranes are under fabrication, during which Mr Oscar will take the photos for each step and send to Haiti customer, also supervise the painting, package and shipment to ensure everything goes well. Besides, HENAN YUANTAI CRANE MACHINERY IMPORT&EXPORT CO., LTD will send the test certificate and related installation, maintenance, commission manual together with the finished cranes.

From this order, Mr Oscar give us a sample: HENAN YUANTAI CRANE MACHINERY IMPORT &EXPORT CO., LTD should not only have the good quality European standard overhead cranes, but also needs professional service and make our customer enjoy this business. We are always together with our customers.
Dongqi Group will continually updated about this order of one set 20 ton double girder overhead crane and four sets 5 ton single girder overhead crane for Haiti customer.