This symbol points out important safety instructions which if not followed could endanger the personal safety and/or property of yourself and others.read and follow all instructions in this manual and any provided with the equipment before attempting to operate your sinray Electric Hoist.

WARNING :

Usage of hoists that do not invole lifting of the load on the lower hook or using hoists in the hoist down position without special precaution may cause an accident resulting in injury and/or property damage.

WARNING 1:

Improper operation of a hoist can create a potentially hazardous situation which,if not avoided,could result in death or serious injury.To avoid such a potentially hazardous situation, the operator shall:

1. NO people are allowed. No people are allowed to stand in the area below the equipment while the payload is being hoisted.

2. NOT allow people on unsecured load without fall protection.

3. NOT exceed rated capacity of hoist.

4. NOT remove or obscure any capacity or warning label.

5. Check the support structure.The connection between the load hook and the structure.The load itself and the connection between the hoist bracket and the load enable it to withstand sufficient set load.

6. Read hoist manual and special instructions before installing and operating the hoist.

WARNING 2:

Improper operation of a hoist can create a potentially hazardous situation which,if not avoided,could result in minor or moderate injury.to avoid such a potentially hazardous situation, the operator shall:

1. Maintain a firm footing or be otherwise secured when operating the hoist.

2. Check brake function by tensioning the hoist prior to each lift operation.If any abnormality is found during operation, stop the machine immediately for inspection.

3. When using a hook.The hook is used to connect straps, chains, etc.Install only under slack conditions.

4. Make sure the hook latches are closed and not supporting any parts of the load.

5. Make sure the load is free to move and will clear all obstructions.

6. Avoid wiggling in case of load or hook.

7. Make sure the hook moves in the same direction as shown on the control.

8. Regularly inspect lifts, replace damaged or worn parts, and keep proper maintenance records.

9. Use SINRAY parts when repairing the unit.

10. NOT use the hoist load limiting or warning device to measure load.

11. NOT use limit switches as routine operating stops.They are emergency devices only.

12. NOT allow your attention to be diverted when operating hoist.Guard against collision.

13. NOT allow the hoist to be subjected to sharp contact with other hoists,structures,or objects through misuse.

14. NOT adjust or repair the hoist unless qualified to perform such adjustments or repairs.

Successful Theatrical Hoist Down Operation Requires the following actions:

At the loose end,maintain a minimum of 24 inches(61 cm) of chain freely hanging over the side of hoist.

Do make sure hoist is phased properly and chain travel limits function properly.

If a chain container is used,inspect before each use for damaged,loose hardware and water deainage provisons.Make certain container attachment hardware has an adequate design factor of a minimum of 5 to 1.Also,make sure chain container is of sufficient capacity:chain in fully loaded container shall not exceed 75% of container height.

High Quality Stage Electric Hoist usually has no faults. However, sometimes some electric hoist reducers, there will be some common faults: abnormal sounds in the gearbox of the deceleration chassis, cracking of the gearbox, and oil leakage of the reducer. These three kinds of faults are common. We will explain the causes and solutions of the faults one by one. Today we will talk about the abnormal sound of the gearbox gear of the speed reducer.

The reason why the gearbox of the reduction gear body is abnormally sounded is the following points:

(1) Insufficient lubricating oil;

(2) There is bump damage on the tooth surface of the gear, and the gear quality is poor;

(3) Bearings and gears are seriously worn;

(4) The gear box is not clean.

Solution:

(1) Lubrication.

(2) Repair the tooth surface and replace the good quality gear.

(3) Replace gears and bearings in time.

(4) Regular cleaning.

I hope the above methods can help you. If you have any other comments or suggestions, please call us.

Here is a professional factory talking about electric hoist. We have Stage Chain Hoist System For Sale. If you have any questions about Stage Chain Hoist System Price, you can contact us.

Electric hoist is an important part of lifting equipment and transportation structure. It has been widely used in docks, ports, warehouses, etc. After receiving the goods, we first need to install the electric hoist. What problems are needed to pay attention in the installation?

First, the inspection before installation.

1. Before lifting, the installer should strictly check whether the electric hoist hoisting system and the reducer meet the requirements. At the same time, it is necessary to check whether it is injected according to the regulations, and whether the grease is applied when checking the running mechanism;

2. The installer should strictly check whether the electrical control box is strictly configured according to the regulations, and check whether the insulation type of the lifting motor and the traveling motor meets the requirements;

3. Strictly check whether the fixed end of the wire rope meets the requirements and whether the plug is firm;

4. The installer needs to check whether the control button wiring meets the requirements, and also check whether the button is fastened with a wire rope;

5. Strictly apply the yellow and black paint to the hook according to the regulations, so as to avoid the rust problem of the hook, and also check whether the hook safety equipment is missing;

6. It is necessary to ensure that there are three pressure plates at the shareholder end of the wire rope and the reel, and the fastening of the bolts is also required.

7. Installers should use appropriate anti-collision equipment and properly install the rise and fall limit switches.

Second, the lifting of electric hoist.

When installing the electric hoist, it is necessary to select the appropriate installation method according to the actual situation of the construction site. You can choose to install the crane or the hoisting machine to install the pulley block. At the same time, it is necessary to ensure that the equipment will not be scratched by the rope during the installation process, and the installation facilities should be scientifically selected according to the weight of the equipment.

Third, electric hoist installation precautions.

The installer needs to install elastic buffers at both ends of the track to avoid the problem of derailment of the electric hoist; the bottom line must be erected on the track or the connected frame; finally, the resistance of the power circuit to ground should be strictly controlled.

In the use of electric hoist and crane hook, the working surface is often in contact with the rope of steel wire rope or steel bucket and ladle, which is easy to be scrapped in advance, resulting in material waste and economic loss. However, the safety regulations of the hoisting machinery stipulate that the hooks are not allowed to be used for welding repair, so it is proposed to repair the hook wear or paint by a new method to improve the utilization rate and prolong the service life. So, today Lifting Stage Exporter here shares with you how to spray it after falling ofd the paint.

First, spraying method

The spraying method uses an oxygen-acetylene spray gun to spray the automatic exothermic alloy powder onto the worn surface of the roughened hook. The powder undergoes a strong exothermic reaction under the flame of oxygen-acetylene, generating an instant. The high temperature is diffused and combined with the interatomic motion of the basic body to form a transition layer. Then, according to the working conditions, the corresponding self-fluxing alloy powder is sprayed to form a working layer with mechanical properties such as wear resistance.

Second, spray welding

Spray welding method is to use a spray gun, rely on oxygen-acetylene flame, according to working conditions, spray welding the corresponding self-fluxing alloy powder to the preheated clean hook wear surface, and then use oxygen-acetylene flame or other The heat source reheats the spray-welded layer and welds it with the base metal to form a weld layer with mechanical properties such as wear resistance.

The stage electric hoist is a light and small lifting device installed on a crane or a driving vehicle, and it is mostly used in stage lifting, industrial mining, storage docks. As a professional Stage Electric Chain Hoist Factory, let us introduce you the advantages of the stage electric hoist we know.

1. High efficiency, light weight motor, no asbestos brake system, low energy consumption.

2. Stamped steel frame, lightweight and sturdy.

3. High-strength safety hooks, it will not break when subjected to accidental overload shock, and it will only gradually deform when overweight.

4. Lightweight, beautiful and durable plastic chain bag.

5. Limit switch: there are limit switch devices on the hoist, so that the motor stops automatically, preventing the chain from exceeding and ensuring safety.

6. Heat-formed steel guide chain plates.

7. Easy to operate, easy to maintain.

8. Designed in both positive and negative directions and all-weather use.

9. With adjustable screw type limit switch, the reliability is higher.

10. The chain is galvanized, not easy to rust.

11. Grease is contained in the gear box to prevent oil droplets from penetrating into the stage.

12. The motor of the hoist is sealed in a cylindrical outer casing of aluminum steel ring to permanently protect the motor.

13. Suitable for connection with various controllers and circuit distributors.

Our company’s Stage Electric Hoist For Sale, if you need any help, please contact us. We will stand by at any time.

2T Aluminum Electric Hoist Description:
1. Double friction disc brake system
2. Control: electric hoist is equipped with standard connecting cable and CE connector. The power supply is 380V with 3-phase, built-in limit device
3. The shell is rainproof and high-strength aluminum alloy structure shell.

4. Transmission device: permanent gear in a lubrication system, so that the gear operation more smoothly, cooling, lubrication, extend the service life5. Lifting chain: G100 galvanized lifting chain, 25 meters in length, class T: 1000 n per square mm in breaking degree, class 10 in safety coefficient.
6. Motor: insulation grade F. The maximum allowable temperature is 155 degrees, the winding temperature rise limit can reach 100 degrees, and the performance reference temperature can reach 100 degrees.
7.  Light Weight Stage Hoist guide device: special five-hole lifting sprocket, which makes the chain lift and balance; Nylon chain protector: as long as the chain is not knotted, it can run smoothly.
8. Reliability: the hoist is equipped with a patented overload protection clutch, which can protect the safety of the operator and the product from damage in case of overload. 
9. The built-in adjustable limit switch can automatically stop at any predetermined position in the up or down using the hoist (optional).
10. Safety: lifetime maintenance, and provide related accessories and technical support

The brake of the High Quality Stage Electric Chain Hoist is a device for stopping or decelerating the moving parts of the mechanism. Due to the intermittent working characteristics of the stage electric hoist, each working mechanism is often in a state of frequent starting and braking.

Brakes are an indispensable part of the power-driven mechanisms and are the dual task of control and safety of the organization’s work, which is the focus of safety inspections.

Then how is the brake of the Waterproof Stage Electric Hoist classified according to the working conditions? Let’s take a closer look:
Normally closed brakes, when the stage electric hoist stops working, the brake is in the closed state; when the mechanism is connected to the energy, an external force is applied to release the brake, so that the mechanism starts working.
Normally open brake, stage electric hoist is in a non-working state, the brake is in the state of release, the mechanism can generate motion under the action of external load (such as wind load); the mechanism needs to work
When the motion is stopped, the upper brake force can be applied as needed to combine the friction pairs to generate braking torque.

Here is Stage Electric Hoist Aluminum Shell Supplier talking about The stage electric hoist must do the following five points before use.

The Waterproof Stage Electric Hoist must do the following five points before use:
1. The stage electric hoist must check whether these numbers are consistent with that supplied voltage before connecting the power supply. The voltage and frequency of the power supply used in the electric chain hoist are marked on the rated voltage of the motor.
2. The first lubrication of the stage electric hoist must be completed before the crane is used.
3. Stage electric hoist hooks and hook-eye suspensions should be properly placed on the saddle to be able to support the crane’s strength in maximum hoisting capacity.
4. Stage electric hoist before use test: After the assembly is completed, the crane is used before the normal operation, the following procedures should be completed. Isolated power supply: Check that all mechanical and electrical connections and connections are locked and secure.

I believe that a lot of iron powder is in the stage of crazy star chasing, especially the singer, it must be a concert. When you attend a concert of a certain singer, you will find that the stage effect is great, lighting and sound are in place. These are inseparable from the hard work of the staff, but many people believe that they also noticed that there are several “black” machines hanging beside the stage, but it is not clear what this is for. In fact, these “black” machinery is the stage electric hoist mentioned here.

The tour requires a variety of lighting fixtures and brackets. Traditionally, it requires a lot of manpower. It is not only time-consuming and labor-intensive but also extremely insecure. Later, with the development of science, there is a stage-specific electric hoist that replaces manpower. It has the characteristics of small size, lightweight, and no reflection. Since the stage is a special place, it is impossible to reflect the electric hoist, so all the stage electric hoists have been frosted to prevent reflection and to be beautiful. The stage electric hoist is a kind of electric hoist, which is more suitable for the special occasion of the stage and has its unique advantages in technology and function.

The China Stage Chain Electric Hoist belongs to the chain electric hoist, also called the hoist. 
The Small Size Aluminum Electric Hoist is designed and manufactured in strict accordance with the requirements of the tour, the roving exhibition, the surface is black lacquered, the light is lasting, the 110 volt control circuit is heat treated, and the formed steel guide chain plate is designed for use in both positive and negative directions and all weather. Adjustable screw type limit switch, higher reliability, galvanized chain, not easy to rust, lubricating grease is installed in the gearbox to prevent oil droplets from penetrating into the stage, and the hoist motor is sealed in a cylindrical outer casing of aluminum steel ring Inside, permanent motor protection, suitable for connection with various controllers and circuit distributors.

Regarding the origin of the name of electric hoist, there are three kinds of sayings in society:

1. The shape is like a plant gourd.

2. Small Size Aluminum Electric Hoist originated in the West, formerly known as Electric Hoist (electric hoist), and Hoist pronunciation is similar to “hoist”.

3. The specific meaning of the gourd in Chinese traditional culture, such as the gourd in the mythical stories such as the gourd doll and the Journey to the West in fairy tales, are all magical objects that are small and big, and the two are plucked into a thousand pieces; Just to get a good color.

Popular science:
Stage aluminum shell electric hoist
As a new generation of Waterproof Stage Electric Hoist, the stage electric hoist not only has consistent safety, high efficiency, and reliability but also meets the requirements of international industry design requirements, outdoor performance requirements, dustproof and waterproof grade reaches IP56, which is China. The first manufacturer of electric hoist grade IP56. Adhere to China’s intellectual creation and let the world fall in love with China.
1. Double friction plate brake system
2. Control: The electric hoist is equipped with a standard connecting cable and a CE type connector. The power supply is 3-phase 380V, built-in limit device
3. The outer casing is a rainproof high-strength aluminum alloy structural shell.
4. Transmission: The gear is permanently in a lubrication system, making the gear running smoothly, cooling, lubricating and prolonging the service life.
5. Lifting chain: G100 galvanized lifting chain, chain length 25 meters, T grade: breaking degree 1000 cattle per square millimeter, safety factor 10.
6. Motor: Insulation class is F. The maximum allowable temperature is 155 degrees, the winding temperature rise limit is 100 degrees, and the performance reference temperature is 100 degrees.
7. Guide chain device: Unique five-hole lifting sprocket to balance the chain; nylon chain cover: As long as the chain is not knotted, it can run smoothly.
8. Reliability: The hoist is equipped with a patented overload protection clutch that protects the operator from damage and damages the product in the event of an overload.
9. Built-in configurable limit opening, which can be automatically stopped (optional) at any predetermined position in the ascent or descent.
10. Safety: lifetime maintenance, with related accessories and technical support