Hoisting Mechanism 75JLF45

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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:75JLF45

Rated single rope tension(kN):45

Magnification:4

Rated power of the motor (kW):75

Working frequency(Hz):6-50-100

Hoisting speed (m/min):2.7-22-45

Hoisting capacity(t):16-16-8

Rope capacity(m):550(5 layers)/804(7 layers)

Nominal Diameter of wire rope (mm):Φ20

Hoisting Mechanism 75JLF45

Q:Tower crane (tower crane): Fixed tower crane, mobile tower crane, flat tower crane, movable arm tower crane

Q:I have learned how to make crane but I just can't! I've watched about 6-7 videos for it and i still don't get it!: If that doesn't help at all , try pictures with words . Here are my two favourite sites . They have good instructions and pictures . Really simple to understand .

Q:Does a crane have a pulley?AND....Is an axe a wedge?THANX CUZ I DONT KNOW WHAT IM DOING, AND OMG IM SO GOING TO FAIL MY TEST BECAUSE IM SO DUMB.: Of course cranes have pulleys. If you know how they work it should be clear. Why else do you think there are two, or more (depending on the crane), ropes attached to their hook. Every rope added, except for the first, halves the weight of the object you want to lift. If you have two ropes and an object is 5 tones, the crane will only need the power to lift 2,5 tonnes. If it has six ropes it even only need the power to lift one tonne. And an axe is a wedge, logically. In fact, every tool with a blade is more or less a wedge. After all the wedge is the principal of a blade's function.

Q:What qualifications do you need to be a Crane Operator in QLD, Australia?: You need to do a specific amount of hours in training to be a crane operator in Australia, I know that in Sydney, you are certified by the WorkCover Authority, or that's how it was many yeas back. Special emphasis is on loads, and point of load. We do not need a mobile crane tipping over do we. Safety, working near electrical, and on soft ground. Weight you can extend to on a jib. etc.

Q:I'm trying to workout the best height of a truss for a ship-to-shore container crane project. The crane will have a 65m outreach, 18m center section and 15m backreach. I was thinking in the region of 2m-3m truss height.Any input would be great.Thanks: Jimmy: The American Society of Mechanical Engineers (ASME) produces design standards for many types of cranes: see the link below. Many crane owners, licensing and governmental authorities having jurisdiction over cranes require design, fabrication and testing to ASME standards.

Q:What does tower crane jacking up mean?: First of all, the boom and trim balance arm, unlock the top are connected with a lifting sleeve frame with the standard section, start lifting system, lifting jack will superstructure.Jiangsu Zhendong port machinery manufacturing heavy port machinery is a professional manufacturer of mechanism

Q:A heavy concrete panel is being lifted into position in a building by means of a crane (see figure below). The tension of 1.78 x 10^4 N in the supporting cable produces a torque with respect to point O. (Let L = 46.3 m.): The crane contributes a torque of 495,979.8 Newton-meters. 1.78e+4 * 46.3 * cos(53.0) = 495,979.8 ...but this is not the total (net) torque. There is also a torque due to the weight of the concrete slab - torque we are ignoring since we do not know the weight of the slab.

Q:Are there any special requirements for the installation of wall fittings of tower cranes?: The wall pieces should be rigidly connected on the wall of the embedded parts.

Q:i saw a PS3 in a claw crane game at Six Flags Over Georgia i wonder how you can win it. It is possible to win it... somehow. I thought that the strategy was to lift the prize that is closest to the hole. I almost won a Kinect that way. So are there any other strategies??? Don't say buy 1 or there isnt a way to win because there is.: The crane machines work in such a way as to only make the claw strong enough to hold prizes after a certain amount of attempts so as to limit the amount of prizes taken.

Q:I got the crane gold 1.6 roller rocker I'm trying to install on my 95 z28 w/ an lt1 and it doesn't seem like they are installing quite right. I got the tall black nuts that hold the rocker down around the stud and the pushrods, that's it. Do I need to use those things that go below the rockers themselves (the things that slide over the stud and the rocker goes over it from the original rockers) or do I just install how I already am with just the crane rockers, black nuts and pushrods?: Lt1 Roller Rockers

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