• Hoisting mechanism 55JLF30D System 1
  • Hoisting mechanism 55JLF30D System 2
Hoisting mechanism 55JLF30D

Hoisting mechanism 55JLF30D

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Introduction

The products are independently developed and manufactured by our company via absorbing international and domestic advanced technologies.

Natinal Patented products:Patent 1:ZL2009 2 0243653.7

Hoisting Mechanism of Tower crane Patent 2:ZL2010 20226428.5.

Combined-type winding drum used in winch JLF series products adopt the structural style of variable frenquency motor +SNGW reducer+winding drum.S-NGM reducer is employed for the first time in China with the precision of all gears up to over 6 level and features of less noise, compact structure, light weight and convenient maintenance.

Specification

Model:55JLF30D

Rated single rope tension(kN):30

Magnification:4

Rated power of the motor (kW):55

Working frequency(Hz):6-50-100

Hoisting speed (m/min):2.4-20-40

Hoisting capacity(t):12-12-6

Rope capacity(m):1140(6 layers)

Nominal Diameter of wire rope (mm):Φ16

Q:They seem to be the tallest thing around, so what put them up?
They are self-elevating. They jack themselves up. It was the invention of the self-elevating crane and the self service elevator which made popular tall buildings. In older cities, such as Paris, the height of a building was limits by the number of flights of stairs people were willing to climb.
Q:I'm folding 1000 origami cranes for my upcoming wedding. It's a tradition. I'm trying to find a website that can show me how to make the cranes into a large picture or an idea for a mobile. I found some sites that show pictures of each, but nothing with a how to on it.
from most of the pictures i saw, it seems pretty simple to figure out thinking of it logically. Origami cranes, string, wood sticks, Love and care. And with a bit of your own creativity and whatever supplies you can gather I think you will do a great thing. (making a paper crane now :)
Q:How much more than m of tower crane jib winch point height should be equipped with anemometer
The use of 4.0.15 tower crane height of more than 30m should be equipped with obstacle lights, jib root hinge height of more than 50m should be equipped with anemometer.
Q:Can the attached arm of the tower crane be welded?
The following points: the calculation of tower crane according to the instructions provided with the attachment of the building, a maximum load attachment device (Fig. 14-44), therefore, should be in the way of adhering bar load as the design or check attached bar section basis.
Q:Lifting tower crane tower more than 45 meters, the demolition cost and how to adjust the field Sinotrans transportation fees?
Self lifting tower crane tower 45 meters high to prevail, such as height of over 45 meters, each increased to 10 meters (less than 5 meters, excluding) demolition costs increase 20%, off-site transportation costs increased by 10%.
Q:live in marshes???
The Sand Hill Crane has its most important stop over area on its migrations on the Platte River in Nebraska; not too far from the Nebraskan sand hills. Asking in zoology can be a mistake. Even I, a zoologist, do not visit there often. The number one question is; who would win in a fight between a lion and a tiger.
Q:how can we minimize energy losses of a crane to reduce the impact on the environment?
No hint as to what type or size of crane, so I assume it is a large overhead traveling bridge crane inside an industrial building: Consult the manufacturer for recommendations. Change its power source to something cleaner (from diesel to propane or electric). Properly lubricate and adjust all moving parts. Turn power off when idle. Schedule heavy usage during hours of low demand of electric utility power. Replace motor with a more efficient new one. Replace entire crane with a new efficient one. Replace the large capacity one with one or more smaller units.
Q:how can I get rid of what looks like small crane flies in my yard and house. they seem to get in the grass?
First determine if they are hurting anything. If they are true crane flys they will go a way soon. If they are not hurting anything I would not treat them. If you want to identify exactly what they are capture some and take them to you County Extension agent and he/she will be able to tell you what they are and if they pose a danger to you and your family.
Q:Lifting a cylindrical steel vessel kind of thing is required to change it's postion from vertical to horizontal for cutting into pieces. The cranes deployed are indivisually operated.
This is strictly a question for an experienced rigging contractor. There is a lot more to the question than just what cranes you are using. I have been involved in the lifting of many large vessels up to 150 foot in length and over 600,000 lbs. If you have to ask questions like the above, you have no business even involved in such a project. There are many contractors who are experienced in doing the kind of work you are asking about. I would not undertake such a job without some very experienced folks taking the lead.
Q:the question is :Two cranes can unload a ship together in 15 hours. The faster crane takes 16 hours less than the slower crane, if each were to unload the same ship alone. How long doesi t take for each crane to unload this ship? I done most of the math but i am stuck with this last part .15+- radical 1185/2
No. of hours for the slower to unload alone—x: 1/x + 1/(x - 16) = 1/15 (x - 16 + x)/(x? - 16x) = 1/15 15(2x - 16) = x? - 16x 30x - 240 = x? - 16x x? - 46x = - 240 x? - 23x = - 240 + (- 23)? x? - 23x = - 240 + 529 (x - 23)? = 289 x - 23 = 17 x = 40 No. of hours for the faster to unload alone: = 40 - 16 = 24 Answer: slower crane, 40 hrs; faster crane, 24 hrs Check: = 15(1/40 + 1/24) = 15([3 + 5]/120) = 15(8/120) = 15(1/15) = 15/15 or 1

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