13 Sets of Overhead Cranes For Flat Rolled Steel Mill Pakistan
Double girder overhead crane for sale Pakistan steel mills . 13 sets of overhead cranes 5 ton,16 ton 30 ton,45 ton, one-resource overhead crane services.
Profile of Pakistan Flat Rolled Steel Mill
A**a Steel Mills Limited is a Group Company, which was founded in 2005 and began commercial operations in 2012. It is one of the largest manufacturers of Flat Rolled Steel – Cold Rolled and Hot Dipped Galvanized coils and is based in Port Qasim, Karachi, the most suitable plant location for the export market.
It is a very influential local steel company, mainly producing cold-rolled steel, hot-dip galvanized coils and other steel products, located in Karachi.
Initial inquiry
In February 2016, received the steel mill overhead crane inquiry from the Pakistan Steel Mill with the following information .
30ton -21.966M Span, Lifting Height :9m, A7 working level, remote control, double girder bridge crane, the customer specially mentioned that the continuous rate of all motors must be 60%.
So far the Pakistan customer has 2 sets of existing cranes, including a 30 ton overhead crane and 25 ton overhead crane cranes at the same bay, and now , and he plans to add another 30 ton overhead crane on the same span and requires both remote control and ground operation.
In the subsequent communication, the steel mill customer required the hoisting motor to reach 100% duty cycle, 60% of the running motor, variable frequency for all speeds, and a C-type hook spreader. Besides, the brand of the motor was specified as Siemens and Schneider Electric. The Pakistan customer also indicated that he would visit the factory during production at least 2 times to supervise production.
Crane Factory Visiting
In late October 2016, the business manager and engineer visited Pakistan and the customer and inspected the work site. This visit established a foundation of trust for both parties. The Pakistan steel mill customer planned to expand the factory and sent a new inquiry.
Double Girder Overhead Crane
|
Capacity |
Span |
Lifting Height |
Quantity |
|
30 ton |
24 |
12 |
02Nos. |
|
16 ton |
24 |
26 |
01No. |
|
5 ton |
24 |
32 |
01No. |
|
30 ton |
18 |
12 |
05Nos. |
|
45 ton |
18 |
12 |
01No. |
|
Control |
Wireless Remote + Cabin Control |
|
Power Supply |
415V 50 Hz 3 Phase |
|
Control Voltage |
24 Volt |
|
Working Class |
A8 |
|
Duty Class |
Hoisting : M8 |
|
Long Travel : M8 |
|
|
Cross Travel : M7 |
|
|
Speed |
Hoisting : 1 ~ 6 m / min |
|
Long Travel : 5 ~ 50 m / min |
|
|
Cross Travel : 2 ~ 30 m / min |
|
|
Motor Type |
VFD |
|
Motor Cooling |
Forced |
|
Cycle Duty Frequency |
Hoisting : 100% |
|
Long Travel : 60% |
|
|
Cross Travel : 60% |
|
|
Ambient Temperature |
Up to 50 deg C |
|
Degree of Protection |
IP 55 |
|
Brand of VFD |
Schneider |
|
Brand of other Electric Components |
Schneider |
|
Brand of Motor |
SIEMENS |
|
Brand of Gearboxes |
SEW |
|
Lifting Hook |
Motorized |
|
Application |
Indoor |
|
Overloading Protection |
Yes |
|
Working Condition |
24 / 7 |
|
Long Travel Power Supply |
As per your Design |
|
Long Travel Rail |
As per your Design |
|
Long Travel Wheel Design |
Both Side Flange Wheel (Collar Type) |
|
No. of LT Wheels |
2 Drive and 2 Non Drive |
|
Cross Travel Rail |
As per your Design |
|
Cross Travel Wheel Design |
Both Side Flange Wheel (Collar Type) |
|
No. of CT Wheels |
2 Drive and 2 Non Drive |
Final order of steel mill overhead crane
Details of these steel mill overhead cranes were discussed until September 2017, and the finalized list of purchased steel mill material handling equipment was as follows:
Order confirmation, production, delivery:
By November 2017, 30% of LC's advance payment will be received, and the delivery time will be 5 months, and the production, delivery, customs declaration and other matters will be started.
During the production period, the Pakistan customer did not send anyone to supervise the work on site, but only inspected the overhead crane equipment before delivery. The shipment will be divided into two batches of bulk carriers for the main girder and containers for others. All equipment transportation will be completed by April 2018, and the installation work under the guidance of our engineers will be completed in October 2018. By April 2019, the customer had purchased spare parts totaling $40,000, including wheels, resistors, thrusters, couplings, some motors, brakes, etc.
After sales:
In August 2019, our crane engineer went to the site to maintain the steel mill overhead crane machine, and found and verified that the frequency converters of 3 overhead cranes were adjusted privately by unprofessionals, resulting in unstable speed during the lifting process. The engineer reset the frequency converter parameters and everything Back to normal. During the first routine maintenance, electrical appliances, drives, and all mechanical parts were inspected and maintained, and no abnormalities were found.
Summarize:
The Pakistan steel mill customer knows very well about cranes, because he has been using cranes all the time, he is very professional about crane configuration parameters, etc., he is rigorous and serious in his work, and has high standards. A large number of overhead crane spare parts ensure that these 13 steel mill overhead cranes work normally for at least 5-10 years without delaying production.
The establishment of trust is the most important. Before the transaction, there were two meetings, one customer visit, and one our return visit. After the customer learned about our production capacity, management, export strength and after-sales guarantee, their cooperation intention was very clear, and they were decisively weed out the other competitors. Our on-site maintenance within one year of use is also crucial, and it also makes customers feel at ease with our after-sales service!
