Hoisting Mechanism 70RCS25

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Product Description:

70RCS25 Series Hoisting Mechanism

Introduction

Such production are independently developed and manufactured by our company based on mature technologies of French Potain Company with rated hoisting weight of 8t,10t,12t and 16t.Horizontal and vertical motor mounting types and different rope capacity are available for users. Such products adopt two winding 3-phase asynchronous motors and series excitation speed regulation circuit which realize interactive effects via gear assembly to constitute speed regulating system with features of wide range of speed regulation, high-speeding hoisting, low-speed positioning, stable speed change and high working efficiency. The mechanism adopts L-shap in overall layout and employs winding drum of Lebus grooves with large rope capacity, which can prevent disorder in case of multilayer winding of wirerope and satisfy wide use demands of high-rise building construction, hoisting of large equipment & construction member, etc.

Specification

Model:70RCS25

Rated single rope tension KN:25

Magnification:4

Rated Power of the Motor kW:51.5

Operating Frequency(Hz):50

Hoisting speed(m/min):25/50

Rated lifting capacity(t):10/5

Rope capacity(m):550 (5 layers)

Nominal Diameter of Wire rope (mm):Φ14

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Q:How many stops are there in a tower crane? Where are they located in the tower cranes?
The hook has an upper limit on the windlassThe car has front and rear spacing on the trolley hoistSlewing is limited to the slewing gearAnd the torque limit is on the spireWeight limit
Q:What is the definition of lifting, slewing and luffing of tower cranes?
Rotary is cantilever tower crane tower crane rotary shaft winding;Is the hook shaft distance amplitude change;
Q:How to calculate the pouring and maintenance of tower crane concrete in valuation?
Calculated according to actual concrete quantity. According to the design plan of the visa and construction organization.
Q:What are the four major moving mechanisms of a tower crane?
The metal structure includes the tower, the boom and the base. The working mechanism has four parts, lifting, luffing, turning and walking.There are many types of tower crane, if according to whether the walking mechanism, there is a fixed type and operation type; according to the tower structure is divided into rotary, inferior type, attached itself three; if divided by the amplitude, a trolley type, luffing type and folding arm luffing type three; according to the weight division, with light and medium and heavy three.
Q:In what circumstances should a tower crane be demonstrated by an expert?
(two) lifting equipment with lifting capacity of 300kN and above; climbing within height 200m or aboveDemolition of heavy equipment.
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:What are the main technical parameters of a tower crane?
Generally speaking, the main parameters of the tower crane are:Maximum amplitude unit MMaximum lifting height, unit MMaximum lifting torque unit KN.mMaximum lifting speed unit m/minMaximum lifting unit tRotational speed unit r/minVariable speed unit m/min or o/minWalking speed per unit m/minMotor power unit w......Please refer to the product manual.
Q:Wall mounted tower crane
The construction of tower crane installation, operation and dismantling safety technical regulations "(JGJ196-2010) design provisions in article 3.3 attachment device of tower crane: when the tower crane attachment for use, attachment device settings and free height should comply with the provisions of the instructions; when the attachment level distance, attachment spacing does not meet the the instructions to.
Q:What are the types of cranes?
First, lifting machinery according to the way of work can be divided into light and small lifting equipment, cranes and elevators three categories. (1) light and small lifting equipment mainly refers to lifting machines with only one lifting device. There are jacks, pulleys, electric hand operated gourds, etc.. (2) crane refers to lifting machines that can not only lift vertically but also move horizontally. Such as bridge cranes (also known as driving or crane), automobile cranes, tower cranes and so on. (3) lift refers to the fixed position, lifting fixed line, traction wire rope, with slide limit, lifting the luggage belt. It includes all kinds of elevators, winches, winches, etc..
Q:Safety rules for tower cranes
Three. Check after shutdown3.1 after the tower crane has stopped operation, it is necessary to select the suitable position of the barrier and the middle of the track when the turret is turned and the arm to stop along the wind, and then lock all the rail clamps.All 3.2 tower crane rotary mechanism with a normally closed or braking device, in the stop after the operation, the driver must remove the handle, release the brake for crane in the wind blowing in under the direction of rotation.3.3, the hook should be lifted to the minimum distance from the lifting wall, not more than 5m position, hanging on the hook is strictly prohibited. Not to take reliable measures, not by any means, limiting the boom rotate with the wind.

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