Electric rope hoist | Single speed electric wire rope hoist| Dongqi electric rope hoist

CD type electric rope hoist

Electric rope hoist-single lifting speed

Main parameters of electric rope hoist

Product Type: CD1
Electric Rope Hoist Lifting Capacity: 0.5~32t
Electric Rope Hoist Lifting Height: 6~50m
Electric Rope Hoist Working Class: M3,M4
Electric Rope Hoist Ambient Temperature: -25~40℃

CD rope hoist design concept

Lightweight, high stability, high safety factor, long mechanical life, easy to maintain. Simple structure, beautiful appearance, size design is balanced. Quality and safety can compare favorably with Demag and Kone electric hoist, but the cost is only half or even lower than them.

CD-type rope hoist is an electric hoist, with a single lifting speed. The rope electric hoist can be classified into fixed type and running type.

Running type electric hoist can make a linear reciprocating motion in the horizontal direction and also can make a curvilinear motion in a limited arc orbit.

Fixed type rope hoist often supports the use of LH electric hoist double girder bridge crane.

Running type electric rope hoists often support the use of Single-girder overhead cranes, Electric suspension cranes, Electric hoist gantry cranes, Electric hoist semi-gantry cranes, Jib cranes, and others, constituting a variety of hoist cranes.
Our company has nearly many years of production and design history of electric rope hoist and has accumulated a wealth of experience in its design and production, who is an also design and produce non-standard electric hoists adapt to various conditions.

Application of CD rope hoist

CD rope hoist is either used separately or in combination with a single beam, hoist double girder crane, gantry crane, cantilever crane, and others, widely used in railways, docks, industrial and mining enterprises, warehouses, and other places for lifting heavy objects.

Features of CD rope electric hoist

CD-type cuerda de alambre eléctrico de la grúa is mainly composed of a Lifting motor, reducer, drum device, hook set, electric control system, traveling trolley, safety devices, and other components.
Lifting Motor
ZD-type lifting motor is a conical rotor three-phase asynchronous brake motor, standard motor insulation class B, protection class IP44, can be also made F&H- insulation class and IP54&IP55 protection class according to conditions requires. The motor has such characteristics: good heat dissipation, long life use, safe and reliability, and can work long hours at a high-intensity workplace

The lifting Gear Motor is the same as MD-type electric hoist

Drum Device

The drum device consists of a drum shell, rolls, intermediate shaft, guide rope device, and limit guide rod device. The reel device is installed lifting reducer on the left, and a hoisting motor on the right. Reel and reel shell composed of Q235B rolling steel, with high compressive strength, and large carrying capacity.
Guide rope installed in a drum that can make the wire rope in order without chaos. And also push rod guide device movement by moving the guide rope pallets to achieve electric hoist rising and drop limit stop protection. When the hook is down to the lifting height position, safety turns of the wire rope on the drum are not less than twice turns (except laps fixed rope tail).
Rope select line contact wire rope NAT 6 × 37 + FC model, with tensile strength 1570MPa. The safety factor is greater than 4.5 times.
Hook Set

Hook parts have two types: single pulley type is applicable to the lifting mechanism that has two winding wire rope sets. Double pulley type is applicable to the lifting mechanism that has four wire rope sets. Hook set: material DG20, safety factor is greater than 5, hook with the decoupling device that to prevent the wire rope separate from hook, ensure safety and reliability of the hook during operation.

Trolley traveling mechanism

Electric hoist traveling trolley composed of traveling motor, reducer, wallboard, driving& driven wheel set, flat nut, bolt, and adjusting pad.
Trolley run institutions configurations include three types:
A. Lifting capacity ≤5 tons, lifting height ≤9 meters, install one set of driving traveling trolleys.
B. Lifting capacity ≤5 tons, lifting height 9≤H≤30 meters, install one set of driving one set of driven traveling trolleys.
C. Lifting capacity≥10 ton, installation two sets of driving traveling trolleys.
Motor and reducer of electric hoist traveling trolley: Material and structure same with the motor and reducer of lifting mechanism. Wheels are through precision machining with 45 # steel.

Electrical Parts

Electrical parts of CD rope hoist controlled by the electrical box. Electrical components inside of control box fixed above the inside box bottom, with reasonable layout, electrical circuit simple to understand, convenient for daily maintenance.
Electrical components typically use CHNT low-voltage electrical or equipped with Schneider, Siemens and other brands with high quality low voltage electrical components according to customer requirements. Control box protection class IP44, can also be equipped with the highest protection class IP55 control box according to customer requirements.
CD-type eléctrico polipasto de cable power supply can be designed below three-phase 690V, 50 ~ 60HZ frequency control system according to customer requirements.
CD-type electric polipasto de cable electrical control mode is divided into switch direct control mode and inverter frequency control mode. Inverter brands such as: Mitsubishi inverter, Yaskawa inverter, Siemens and Schneider frequency inverter, etc., for customer to choose.
Operation mode including cable handle ground operation, remote control. Even can be installed cabin operation.
CD rope hoist electrical protection functions: voltage protection, ground protection, short circuit protection, overload protection.

Safety Device for CD rope hoist

Upper and lower limit protection: fire limit device composed of the fire stopper and guide rods. Fire stopper mounted on terminal box of the lifting motor, for the upper and lower limit protection of hoisting mechanism, its working principle is: the rope guide card board toggles the guide bar leading to drive the fire stop limit switch and cut off hoisting motor power.
Overload limit protection: overload limiter issue pre-alarm signal when the load reaches 90% as rated, when the load reaches 110% of rated weight immediately cut off the lifting power supply and issued prohibitory alarm signal.

Dongqi Lifting Hoist and Crane, Optimal Material Handling for You

Hoist and crane are the most widely used material handling solutions. With the proper hoisting equipment, we are able to lift and move the heavy objects and loads at the press of a button. With proper hoisting equipment, we are able to work with more efficiency, saving more energy, time and money in some extend. With proper hoisting equipment, we are able to make our working environment with high safety and saves life, living a more enjoyable life.