Hoisting mechanism 45JLF25
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45JLF25 Hoisting mechanism
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:45JLF25
Rated single rope tension(kN):25
Magnification:4
Rated power of the motor (kW):45
Working frequency(Hz):6-50-100
Hoisting speed (m/min):2.7-22-45
Hoisting capacity(t):10-10-5
Rope capacity(m):550(5 layers)
Nominal Diameter of wire rope (mm):Φ14
- Q:What is the function of the balance valve in the hydraulic jacking system of tower crane?
- The function of the balance valve is to maintain the balance of the oil pressure, the hydraulic oil delivery flow is stable, so that the tower crane jacket and the upper part of the lift, disassembly, standard time, lift and smooth.
- Q:Is a mobile crane allowed to operate in an inclined plane?
- It has been my experience that cranes like to be level, and not operate unless they are level. But, I am no expert.
- Q:or is jason mraz just making up things for lyrics?
- No. They are lifted into place in sections by one or more other cranes, the telescopic arm kind, which are either in a nearby street or on the building site. I watched several being built and then dismantled over a period of three years at a large development across the street from my house. However, I saw a TV programme about how they built one on top of a mountain, and there they used helicopters to lower the sections into place.
- Q:Calculate the work the crane performs.
- Crane work = weight to be lifted x 6.95 m Weight to be lifted = 2.75x10^3 N + 1.20 m^3 (2.00 x 10^3 kg/m^3) (9.8) = 2750 + 23520 = 26270 Therefore, Crane work = 26270 x 6.95 = 182576.5 J
- Q:What do you do to become a crane operator, do you go to school and how long is it?
- OK, first, what kind of crane? there are many different kinds that do many different things. From loading containers at the seaport to high rise buildings. One does not just go into cranes. The more experienced ones, started out as oilers or greasers. Some started out as signal persons. They learned by watching and listening. In the following states you must hold National certification: CA, HA,MT,OR,WA,MN,WV,NM,RI,NJ,NV,NY UT. PA and SC have restrictions now but will be added sometime soon. You can attend a crane school that prepares you for the national certification, but it expensive and not easy for someone without a background working around cranes. There is a lot of terminology and mathematics involved. Not to mention the Federal, state, local and OSHA rules you must practice. Go to your state employment office. They have all the information you need. get to know one of the counselors and pursue your dream. It is not as easy as it seems. But is it a well paying career. Good luck Bill
- Q:for example: erection, technical data...
- A bridge crane is one that looks like a bridge (sorry I am tired). It sits on two railway tracks. One at either side of say a building. The tracks are at a fair height. The crane bridge spans between the tracks. Long travel is when the crane moves along the tracks. Cross travel is when the 'crab' moves sideways along the bridge. The crab has the hoist on it with a drum and cable type arrangenment. The lifting gear or hook is attached to the cable. They are very useful in factories for transporting large parts from one process to another. They transport pretty well anywhere in a well designed building in that Long Travel can be X cross travel can be Y and hoist up and down can be Z.
- Q:how do you make one of them, put me through sep by step with photos.
- www.okorder / this is pictures the site Tisha R mentioned is good too, so see which one you like best. hope i helped!
- Q:I understand the Crane stances and know there are more than one. I am referring to the single leg crane stance. I also know that stances are only used briefly. But I am curious, does this stance have any bunkai applications? Or is it only useful against dodging a kick or preparing to kick?
- I use it for evading/stepping away from an attack, against a front leg sweep, you shift your weight to the other leg and pull up the front leg, blocking/checking a kick, striking with the knee, breaking down a foundation on the downward motion, hooking/trapping opponents leg on the upward motion especially if you hook your own foot around your leg you are standing on, sweeping,.... just a few applications that come to mind off the tippy top of my head. So you see it is by no means just a defensive stance and can be quite offensive too.
- Q:how dose a crane work
- If you can bend over and touch your toes, bend over just a little more and grasp your toes with both hands. Next, lift your toes as hard as you can. If you now reach the ceiling (don't try this outdoors!) cranes can lift themselves as you describe. If you are still on the floor you have your answer and even know how the forces are applied (internally) to the crane. Good luck!
- Q:Is there an effective utility for estimating the required size of a crane? I’m an estimator for a mechanical contractor, and it seems we never allow enough money for crane rental. How can I effectively adjust my estimates?
- well I'm not sure but need to over estimate for safety cause there are all ways mitigating forces @ play when using cranes be safe first dude you dint want to be sued for being cheap and if yo do good work word will get around
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Hoisting mechanism 45JLF25
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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