Double Speed Electric Wire Rope Hoist can lift loads stably and easily. The lifting capacity of the electric hoist can be 0.5 to 32 tons. The hoist can be used in mining, railway, port, and storage.
| Type | MD1 |
| Lifting Capacity | 0.5~32ton |
| Lifting Height | 1~100m(Custom) |
| Working Duty | M3, M4 |
| Function Way | electric |
| Ambient Temperature | -20~40℃ |
Introduction
Double Speed Electric Wire Rope Hoists is a small piece of lifting equipment. It can be installed on the I-beam alone, or it can be installed on the overhead crane (electric or manual single beam, double beam), gantry crane, and jib crane.
What can we offer you?
We can provide a series of single-speed electric wire rope hoists with a lifting weight of 0.5t-32ton, a lifting height of 1m-100m, and a light-duty (M3, M4) series.
Not only that, we can also design and manufacture non-standard series products (larger lifting weight, higher lifting height) according to your needs, which require your special needs.
The main purpose of Double Speed Electric Wire Rope Hoists?
It can be installed on various types of cranes, or suspended on an I-beam, and reciprocating in a straight line or a curve.
Electric wire rope hoists are used in industrial and mining enterprises, railways, docks, warehouses, stockyards, and other places. It is a hoisting machine that improves working conditions and improves labor efficiency in current production operations.
Double Speed electric wire rope hoist is suitable for working environment -25℃～+40℃, humidity ≤85%, altitude below 1000m, the applicable power supply is 3-phase AC 380V, 50HZ (power supply can be customized according to customer requirements).
Features
- Safe and reliable;
- High lifting capacity;
- Stable and accurate lifting;
- Easy to operate;
- The structure is compact and light;
- The parts are widely used and interchangeable;
- Easy to maintain;
It is a popular light and small lifting equipment with a wide range of uses.
WeiHuaCrane Advantages
- More professional service: If you are not sure how to customize, our sales manager will help you choose the most suitable product for you;
- Best for you: professional engineers customize products according to your user environment;
- Better price: According to your user environment, etc., we will give you the most suitable product, save unnecessary functions, and help you save money;
- Customized lifting height: According to your needs, the lifting height can be customized for you, which can be extended, reduced, etc., which is most suitable for you;
- Customized function: wireless remote control can be installed, which is more convenient to use;
- Modify the power supply: you can modify the power supply (voltage, frequency, etc.) according to your environment;
- On-site installation: Worried about installation errors, we can on-site installation and commissioning;
- Guidance: We provide use videos and detailed maintenance manuals;
- Replacement of vulnerable parts: more vulnerable parts are provided so that your crane can be replaced in the first time when it is worn out;
- Separate production of parts: after long-term use, if some parts are damaged, we will process these parts for you and send them to you;
Application Scenarios
Double Speed Electric wire rope hoists are suitable for construction and installation companies, factories and mines, civil engineering and bridge construction, electric power, shipbuilding, automobile manufacturing, construction, highways, bridges, metallurgy, mines, slope tunnels, hoistway protection, and other infrastructure construction lifting machinery equipment.
Structure Layout
Double speed electric wire rope hoist has two types: Stationary and Mobile.
As shown on the right: A1、A2、A3、A4 separately fixed on the up, down, left, and right side. A2 is always used on the trolley of double beam crane with hoist. It is usually an operation type without special explanation, traveling along with beams.
Main Structure and Features
Double speed electric wire rope hoist is composed of the lifting mechanism, traveling mechanism (except fixed type), and electric parts as shown below:
1. Lifting Mechanism
Lifting motor drive winding drum rotating through coupling and hollow spindle of reducer, in order to make wire rope of drum drive the hookup and down.
Lifting Motor
- Tapered rotor three-phase asynchronous braking motors;
- High starting torque, effective braking, compact structure;
- Stable operation, small volume and light weight;
- Safety in use, convenient maintain;
- B or F class insulation, IP44, IP54 protection.
Double Speed Electric Wire Rope Hoists is equipped with a ZDS type two-speed motor, and the ratio of the normal speed to the slow speed of the ZDS type motor is 10:1.
Reducer
- Three-level dead axle helical gear rotating body, long service life;
- Gear and the axle made by alloy steel after heat treatment, high intensity;
- Box and cover made from superior cast iron, fully covered;
- Great speed ratio, high accuracy;
- Compact structure, silent operation, high efficiency;
- Machinery oils;
- Easily assemble and disassemble.
Rope Drum
- Made of cast iron or seamless steel tube, light weight, transmit the dynamic force by splines.
- Coil casing made from superior cast iron, high intensity;
- The drum is the central part of the hoist. It contact with travelling mechanism above through; balance beam, with reducer and motor both sides, and with wire rope and hook below. Installed limited guide bar equipment to the up front of the outer cover.
Hook
- Forge with special steel; thrust ball bearing contact with casing through hook and beam to make the hook operate freely;
- No more than 5ton :single pulley hook; More than 10ton: double pulley hook;
- High security, safety buckle, mousing hook.
Traveling Mechanism
- Consist of electric trolley, travelling reducer, travelling motor, driven trolley, etc. The mechanism does reciprocating motion through the main engine driven by a side plate and drum;
- The wheel tread is straight when used with a box-type girder or H beam;
- The wheel tread is circular arc when used with I-beam;
- Its travelling speed is 20m/min, but 30m/min is possible; if 1~5t capacity with12m or higher lilfting height, a driven trolley is necessary;
- Travelling Motor
- Use tapered rotor of three-phase asynchronous braking motors;
- Stable starting, safe braking, can be used with reducer;
- B grade or F grade of insulation，closed structure, motor protection grade is IP44 or IP54.
Electrical Device
- The control box is the rational layout, convenient for maintain;
- The Control box protection grade is IP55, and have waterproof;
- The main power source is optional;
- Safe touchline has high electrical conduction and low pressure;
- The current collector has high planing speed, to ensure the sustaining power supply;
- Consisted with controlling box(0.25t capacity has no it), switch button, stopper, and contacting wire;
- The switch button power voltage is 380v or 36v, standard product is 360v, operating the switch accords to the direction symbols on it, via the discontactor’s contact and discontact(in controlling wire) to control the hoist’s moving.
- Safe and Standard Protecting Function: no voltage protection，ground protection,short-circuit protection,thermal protection,over-loading protection,limit protection,overcurrent protection,power-off protection
- Lifting limit or: broken fire limit device during up and down travelling;
- Overloading protection: overload limiter, according to the working conditions on-site to preinstall related parameters;
- Top-clashing proof device: heavy punch limit or, sensitive reaction, compact appearance.
Parameters
| Model | Double Speed Electric Wire Rope Hoists | |||||||||
| Capacity | Tons | 0.25 | 0.5 | 1 | 2 | 3 | 5 | 10 | 16 | |
| Hoisting height | M | 3,6,9 | 6,9,12 | 6,9,12,18,24,30 | 9,12,18,24,30 | |||||
| Hoisting speed | m/min | 0.8/8 | 0.8/8 | 0.8/8 | 0.8/8 | 0.8/8 | 0.8/8 | 0.7/7 | 0.35/3.5 | |
| Travel speed | m/min | 20 | 20/30 | 20/30 | 20/30 | 20/30 | 20/30 | 20/30 | 18 | |
| Wire rope | Dia. (mm) | 3.6 | 4.8 | 7.4 | 11 | 13 | 15 | 15 | 17.5 | |
| Spec | 6×39 | 6×37+FC | ||||||||
| Hoisting motor | Type | Type | ZD112-4 | ZD1 21-4 | ZD1 22-4 | ZD1 31-4 | ZD1 32-4 | ZD1 41-4 | ZD1 51-4 | ZD1 51-4 |
| ZDS1 0.2/0.8 | ZDS1 0.2/1.5 | ZDS1 0.4/3.0 | ZDS1 0.4/4.5 | ZDS1 0.8/7.5 | ZDS1 1.5/13 | ZDS1 1.5/13 | ||||
| Power | Power(kW) | 0.4 | 0.2/0.8 | 0.2/1.5 | 0.4/3.0 | 0.4/4.5 | 0.8/7.5 | 1.5/13 | 1.5/13 | |
| Rotation speed | Rotation speed(r/min) | 1380 | 1380 | 1380 | 1380 | 1380 | 1440 | 1440 | 1440 | |
| Current | (A) | 1.25 | 0.72/2.4 | 0.72/4.3 | 1.2/7.6 | 2.4/11 | 2.4/18 | 5.2/30 | 5.2/30 | |
| Travel motor | Type | ZDY1 10-4 | ZDY1 11-4 | ZDY1 11-4 | ZDY1 12-4 | ZDY1 12-4 | ZDY1 21-4 | ZDY1 21-4 | ZDY1 21-4 | |
| Power | Power(kW) | 0.06 | 0.2 | 0.2 | 0.4 | 0.4 | 0.8 | 0.8×2 | 0.8×2 | |
| Rotation speed | Rotation speed(r/min) | 1400 | 1380 | 1380 | 1380 | 1380 | 1380 | 1380 | 1380 | |
| Current | Current(A) | 0.3 | 0.72 | 0.72 | 1.25 | 1.25 | 2.4 | 2.4 | 2.4 | |
| Power | AC 380V,50HZ,3P | |||||||||
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