lever hoist high work efficiency

 lift hoist is suitable for construction of the line tight line, adjust the sag, cable and other work in the power, shipbuilding, transportation, construction, mining, telecommunications, communications and other sectors of equipment installation; lifting small items.
 lever hoist mechanical traction, Japan NGK lever hoist especially in small workplaces, outdoor, aerial, and a variety of different angles of traction. More unique advantages;
 lever hoist the main selection of high-strength magnesium alloy material, the chain of high-strength special steel material, with easy to use in the design and use, safe, reliable, reasonable structure, beautiful shape.
 lever hoist maintenance is simple, durable, small lever force, high efficiency, small volume special, special light weight, easy to carry special features.
 lever hoist lifting industry is prohibited ill personnel to operate using. What is the relevant information, please read carefully.
Recently, together with the crane collapse occurred in Anning District of Lanzhou City. Important cause of heavy machinery accidents are frequent lifting equipment "sick job", not inspection, unlicensed operation and other security vulnerabilities.

Lever hoist features

All structural steel lift hoist
Super alloy chain lever hoist
Full rotation of the gear lever hoist
Lever hoist gear and rotating the shaft has bearings or bushings
Lever hoist product surface after spray
Alloy lever hoist hook professional products to meet the overload
Lever hoist products to meet 150% of rated load weight
Lever hoist is the use of aluminum alloy chain lever hoist, the most important feature is the small, labor-saving, easy to carry.
Lever hoist is an easy to use, easy to carry the manual lifting, mainly for use when lifting and lateral traction, field operations officer for the power cable installation or aerial tight line.

Mini electric hoist correct installation method

1, mini electric  manual hoist  the standard of work is single phase power supply running account, and you must use an outlet with a ground wire.
2, open the packing. Be sure to rope wrapped around the rope drum opened on paper tape, scored before the test machine, test machine if you hurry, you may cause rope rewind bashed limit aircraft.

3, avoid direct contact with the wire rope and stop frame, otherwise it will lead to the limit switch failure, causing mini electric hoist is not working properly.
4, do not let the mini electric lift hoist  to be exposed to rain or soaked in water, mini electric hoist protection rating of IP54.
5, the use of miniature electric hoist body can not move or rotate along the mounting rod.
6 Warning: Make sure all cables and micro electric hoist on a rotating or hot parts to maintain an appropriate distance.
7, if the mini electric hoist in the state did not fall, roll the last three laps rope coated with red paint can not be released.hoist equipment If continue down switch, wire rope on the rope drum will be rewound to make electric hoist operation upside down on the open, so that the limit switch will lose effect.

Cordless power dynamic phase electric hoist

    Wireless Electric Hoist with 220V, suitable for all occasions, can enhance the 1000 kg of cargo, especially for high-rise buildings from the downstairs lift heavier daily. Wireless electric  wire rope hoist  simple structure, easy installation, small size and power as a power source with a unidirectional. Hoist the main structure: reducer, running organizations, drum equipment, hook devices, couplings, flexible cable current into the device, limit switch, motor with cone rotor motors, set the power and braking force in one.
Wireless electric  wire rope winch  lifting capacity :250-500KG (single rope 22m * 250kg double rope: 11m * 500kg)
Wireless electric hoist lifting height: 1m-22m, working class: M3
Hoist speed: 20 (30) m / min, lifting speed: 8m/min
Electric hoist input power: 1020W
Wireless electric  lift hoist  can be used with bridge, gantry, overhead crane, the message after adding the transformation can also be used as a winch. Therefore, it is to improve labor efficiency, improve working conditions necessary machinery.

Electric hoist control failure, oil spills how do?

   Electric  wire rope hoist  lifting field is the most frequently used small lifting tool that uses various problems arising in the process greatly affect the efficiency, electric hoist for the process of using the following two situations encountered by customers following explanation, for your reference:
       1, the electric hoist can not stop or to the limit position remains Parking: most electric hoist can not stop the main contacts of the contactor is welded, when the  hoist and trolley  is stopped pressing the switch, the contacts of the contactor can not be disconnected, so that the motor as usual operation, the hoist does not stop. If the hoist to the limit stop position remains as stopper failure, this happens, immediately cut off the power, the electric hoist forcibly stop. After stopping, repair contactors or stopper, serious damage can not be repaired and must be replaced in order to work properly.
       2, electric hoist reducer oil spill reason: reducer joint screw not tightened, after the shutdown, you should tighten the screws. Gourd between gearcase and cover, seals defective assembly or failure damaged, repair or replace the seals should be removed, you can prevent the leakage problem.
       With the lifting industry continues to evolve, electric lift hoist  manufacturers after another, resulting in low quality gourd growing in recent years.

Electric hoist load sway control method

Electric hoist lifting equipment in the most common, most electric  rope hoist  used by people to follow the control button on the ground, or can be manipulated or used in the driver room wired (wireless) remote control. Use, the absolute prohibition does not allow circumstances, and exceeds the rated load and nominal hourly closing times (120 times) use case, should not be overloaded with the following summary hoist load sway control method for reference:
Electric hoist load sway control method:
Load if shaking, shaking the more powerful, the more difficult the operation of the car will be a security risk, in principle, to make the load lateral shake, so the use of electric hoist, please follow the following operations;
a. Do not stayed
b. slowly start to the lateral movement
c. Do not dramatic lifting loads
Starting and stopping the  lever hoist  electric chain hoist lateral movement, even if compliance with the above operation, lifting loads but also how much will be shaking.
At this point, if the following operations will be able to reduce the lifting load sway.
1) Press the traverse key "figure a"
2) the car begins to move, the load will be slightly delayed "in graph b"
3) the load before going to swing to a central location, close keypress
4) When the load chain lift hoist  back just below when the switch is pressed again, "drawing c", so that lateral movement in this state.

Electric chain hoist is installed correctly process and notes

Install electric  chain block  is allowed to work correctly the first step,
First, install chain hoist must first install the chain box;
Second, connect the power cord: Connect the power cord must be cut off in advance. Meanwhile ground should be well grounded, otherwise the operator touches any part of the chain hoist or when you are likely to feel a shock feeling.
Third, lubricate chain hoist load chain: the chain lubrication level is a load chain life is an important factor. Timely and effective lubrication of the load chain, in order to ensure the effective life of the chain.
Fourth, check the chain arrangement: For multi-line chain, electric  manual hoist ,  the hook should ensure that the next frame will not be overturned. If you flip it back to its normal state, to ensure the chain of weld arranged in rows. Finally, check the operating voltage: Because electric chain hoist factory, is based on a user-specified voltage or high voltage equipment, check the wiring and make sure the power supply voltage requirements are met.
  Tips: Installing electric chain  lift hoist   if the improper voltage operation, may cause electric chain hoist causing serious damage.

In the steel plant in the crane inspection a few questions

At present, the steel plant are widely used in plant construction. Because of its short construction period, the construction process is relatively simple, low cost and other advantages, except for some special occasions, the steel plant is always preferred. And installation of reinforced concrete factory building cranes in different tests, steel crane inspection otherwise within the plant should pay attention to several issues.
    A vibration, noise, sound, easy to loose coupling
    Because steel plant vibration absorption effect is poor, crane operation, especially when running carts have a greater vibration and noise. Damping method is currently used in the crane rails and carts bearing rail beam diagonally into the rubber gasket between the pads.manual hoist These rubber pads can absorb vibration noise, but also regulate the level of rail carts levelness. However, this structure reduces the carts with the rail beam orbit coupling stiffness asked. In the crane truck operations, the rubber gasket compression and rebound the intermittent cause carts orbit coupling (eg orbit coupling plate, hook bolts, etc.) are more loose. In the inspection, found several inter-orbit coupling bolts loose carts or track hook bolts loose. Therefore, it is recommended to take the following measures when installing the track: (a) strictly control the height of the rubber gasket in the rail beam height difference between the larger, should be leveled using iron gaskets, rubber mat last; (2) on the bend hook bolt with a larger preload, compression rubber gaskets, increase joint stiffness, torque wrench should be used at the same time evenly distributed between rail fixing bolt preload; (3) using the double nut sturdy other more reliable anti- loose measure.
    Two lateral stiffness of the rail and the beam instability
    Steel plant bearing rail beam, the use of "I"-shaped self-contained steel surface, the rail beam itself fixed commonly used methods are as follows: the rail beam mounted on a steel column bracket on the lower edge of the beam plate with bolts and bracket connection, beam edge board through the plate and column connection. When the crane trolley or hanging objects swing longitudinally along the main beam, its large wheels to the rail through applying a lateral variation of the beam load; time if not enough lateral stiffness of the rail beam severe vibration occurred, or is not firmly fixed bearing rail beam and instability, the safe operation of the crane will be adversely affected. For some large span the rail beam, when the crane girder span in the rail when unloaded from the car, the brake will cause a greater bearing rail beam transverse vibrations. Currently crane rail beam inspection regulations Chengdui Cheng lateral stiffness is no clear standard requirements and the corresponding test methods, making inspection judgment difficult. Recommended test can be used when no load, the amount of 1.1 times the amount of load and load up under braking the car simply to authenticate the rail beam lateral stiffness.

    3 crane girder stiffness measurement
    Girder stiffness discrimination law traditionally used water level in the main beam span suspension ruler, ruler hanging under heavy preload, with the water level in the main beam were measured in the no-load and rated load corresponding cross tape readings, calculates Elastic deflection under the main beam main beam stiffness values ​​to determine eligibility. In fact, the main beam in the amount of reading under load, both actual elastic deformation of the main beam, as well as the rail beam deformation, cart wheel assembly space, car assembly ask gap, cart track and trolley track deformation, deformation  lift hoist  rope and so on. Plant for the installation of the concrete structure of the crane, the elastic deformation of the main beam other than said several larger, assembly gap and the track deformation is negligible; but the crane of steel plant, which the rail beam, in its amount of wheel load reduction will have a greater flexibility under torsion (measured about 2 ~ 3 mm), will be added to the crane girder deformation measurement values, resulting in large errors. Therefore, the conventional method to measure close to or exceeds the threshold value when the S/800 (S span of cranes), especially for the rail span crane beam span where a small tops should be considered under the rail resilient deflection of the beam . The following methods can be used to verify and then measured again: each of the two ends of the crane beam and the main beam span inside hanging in three scales, respectively,hoist equipment with heavy preload, with the water level were measured cranes at no load and rated load under The three gauge readings, and then calculate the amount set under the main beam deflection under actual elasticity values, l = H a (H1 + Day 2) / 2. Where day, H1, respectively, across the main beam, the left-side and right-side beam beam scale at no load and rated load down the reading difference.

Electric wire rope hoist trends

(1)  wire rope hoist  series is designed to rationalize. Recommended parameters: Capacity from 0.25-80t, lifting height 6-63m, with fewer base model covering the entire series. Lifting speed diversification Recommended values: single speed 8m/min, 10m/rain, 12.5m/min; dual-speed 1/10, 1/3, 1/4 ratio change. Two-speed programs should take picture machine, double pole windings and variable frequency conversion stepless speed or technique.
(2) structure should be able to meet a variety of working conditions such as: low headroom, twin-lift and other mounting methods; can be remotely controlled, insulated, corrosion proof, high temperature heat, explosion and other features of the product.
(3) designed to change the traditional round shape design with a square structure, the modular design, increasing the versatility of components, from the original arrangement of the motor of an intermediate shaft in the form of a gear of the rolls, instead of motor- reducer a roll arrangement, not only conducive to effectively improve the wire rope electric  lift hoist  lifting height, and avoid high-speed shaft axis drive, can improve the smooth running and reliability, reduce manufacturing costs.
(4) using high-quality high-strength steel wire rope, according to GB3811-1983 standard requirements, to meet the tensile strength safety factor under the premise of minimizing the wire diameter, roll diameter compatible with the rope diameter ratio of the diameter of wire rope and pulley diameter ratio, in order to facilitate the whole structure and reduced weight.
(5) Optimized gear designed to enhance the carrying capacity of the gear. Gear can be 40Cr or 42CrMn, 40MnB material, quenched and hardened or nitrided, the original material used 20CrMnTi or 20MnTiB Although the flexural strength of the gear and the contact strength than ideal, but affected by domestic processing level based, gear low precision, carburizing quenching deformation difficult to control, after the sequence nor grinding process, it is inevitable there is gear noise, low efficiency. New materials and heat treatment method has many domestic manufacturers to promote.
(6) electric wire rope hoist motor using 2,4,6-pole conical rotor motor for a variety of different conditions.hoist equipment Motor insulation class F class and should be raised to 11, protection class increased to IP54; motor overheat protection device settings; motor should be designed effectively improve the useful power, buck ability and starting and braking capabilities; improve motor design temperature, give full play to the potential of the motor; motor noise in addition to the design, processing, manufacturing to improve accuracy, it should also be considered from the design to reduce electromagnetic noise and wind noise channel eddy current measures.
(7) increased electrical protection measures, in addition to the upper and lower limit protection, it should also increase the overload protection (individual cases considered underrun protection); wrong phase, phase, voltage protection; hook retaining rope protection. Development of multi-function models such as brake: Dual brake (brake wheel motor brake + high cone axis compensation braking); three brake (brake wheel brake cone axis compensation brake + + high volume cylinder safety gates). According to user needs increased lifting height, load digital display.
(8) wire rope hoist high wear resistance, high strength rope guide rope guide materials and equipment performance has been the lead rope hoist many domestic enterprises to explore the subject, at present, China has mastered the part of the successful experience.
(9) Other components such as wire rope hoist hooks, trolleys and other design into groups to consider and versatility.
(10) to improve matching pieces such as wire rope, bearings and other standard parts quality.
(11) wire  rope hoist  raise contactors, transformers and other electrical control components of the mechanical life and electrical life, electric control box shape design plug body should consider coordinating with gourds.
(12) wire rope hoist focus on machine paints, packaging appearance quality.

Electric hoist control box structure and working conditions and precautions

An electric  rope hoist  control box structure overview:
1 control box by the cabinet, contactors, transformers, terminals and other components can also be supplied in different lengths according to user requirements of multi-core cables and flashlight door; control box lid opened, the detachable from the hinge,wire rope winc user installation, maintenance; control box has to be had electrical and mechanical interlock chain, so that the same group of two contactors can not simultaneously connected to the circuit; each control box is equipped with electrical schematics, wiring terminals are consistent with the schematic clear number, user maintenance, wiring.
2 electric  lift hoist  control box, using high-quality chain with a machine AC contactor, the load and instantaneous overload are much improved, can get better, more suitable for frequent operation of lifting appliances required; protection of high quality cold rolled steel plate stretch forming, electrostatic spray, reliable performance, beautiful appearance.

Rust chain hoists

When using  chain block   inevitable rain and other inclement weather, making the chain hoist is easy to rust, rusted chain so that the chain pull is not smooth, the emergence of a variety of small problems one after another, causing distress to our work, seriously affecting the efficiency, also affect the whole life of the device chain hoists.
Acidic due to rain, in the rain when the chain  lift hoist   long after use, should be a key part with a dry cloth or with a hair dryer, to avoid corrosion paint off hoists; then coated with anti-rust oil opponents pull hoist, placed in a dry environment.
In order to play better performance chain Block  is recommended to reduce the frequency of use in the rain, if not avoided, then pay attention to maintenance after use.

Chain hoists chain performance:

Chain hoists chain hoists have a direct impact on the overall performance! Import chain hoists cast alloy steel lifting chain, lifting chain hoists lifting chain than domestically strong tensile, wear strong. And lifting chain hoists are rust after treatment, can enhance the life of  manual hoist  . Import chain hoists, small size, internal compact, lightweight chain, and chain hoists chain hoists lifting faster than domestic stability, improved domestic chain hoists discontinuity shortcomings.

High-strength foot chain hoists hook hook material

Chain Block gear: innovation symmetry speed synchronous gear; international standard gear steel abrasion resistance than ordinary double gourd, a more stable rotation, hand-pull lighter. Chain hoists chain: chain of higher intensity; counterparts at the welding fine, after induction hardened meet ISO3007-1984 international standard chain of technical requirements; adapt to sudden overload work; hand zipper feel better; alter normal  manual hoist  only vertical down, from multiple directions, was 45 ° angle of pull, adapt wider. Chain hoists hook: high-strength foot hook material, advanced alloys, so that the work does not bear the overload fracture, but the gradual deformation, higher safety factor; hook at the new design, so that the goods will not be decoupled.
Chain hoist limit switch: limit switch hanging under the hanging parts, textile chain out to ensure safety.
Chain hoists parts: the main components are made ​​of high quality alloy steel, the implementation of strict size, weight checks, to ensure full performance of each component. Chain hoists body: slim design, innovative and generous appearance; ergonomic, light body work activities interface is small, adaptation to the environment. Chain  lift hoist  spray: advanced spray treatment process, both inside and outside hanging plastic, used for longer list are new as ever. Chain hoists Housing: pressed steel casing, sturdiness in significantly lighter.

When using the winch 15:00 Precautions

1, when using the hoist rope must not tie a knot, twisting around in a pitch of more than 10% broken and should be replaced.
2, wire rope on the drum should be arranged in neat rows, if found overlap and ramps around, you should stop rearranged. Prohibited in turn by hand, foot rope pulling foot. Rope allowed to completely release, should be retained at least three times.
3, winch operation, no person shall leap rope, objects (object) upgrade, the operator shall not leave the  Hoist equipment   Objects at rest or cage should be lowered to the ground.
     4, operation, drivers, signalers to lift objects with good visibility, the driver and signalman should cooperate closely to obey signals unified command.
5, the job is completed, you should feed pan floor, lock electrical box.
6, work to obey the command of officers signal, the signal is unknown or is likely to cause an accident should be suspended operations until clarify the situation before continuing.
7, the operation in case of power failure,lift hoist should cut off the power to the ground will improve things.
8, the job of a sudden power outage, you should immediately pull the knife, will ship things down.
9, the job is completed, you should feed pan floor, lock electrical box.
10, in the course of rope and mechanical wear. Spontaneous local corrosion damage is inevitable, should be an interval time brushing protective oil.
11, using the process appears to be careful not to tie. Squashed. Arcing wounded. Chemical erosion of media.
12,  lever hoist s Do not overload use.
13, using the process appears to be careful not to tie. Squashed. Arcing wounded. Chemical erosion of media.
14 may not be directly lifting hot objects, objects for angular to add shield.
15, using the process should always check the rope used to achieve the standards should be scrapped immediately scrapped.

Electric winch specifications and classification

Manual and electric hoist is mainly divided into two categories, it is an electric motor powered by the flexible coupling, three enclosed gear boxes, jaw couplings driven reels, using electromagnetic brake. Windlass versatility, compact structure, small size, light weight, major and easy to use transfer is widely used in construction, water conservancy, forestry, mining, port and other materials drag down or flat, but also for modern electronically controlled automatic operation of the line equipment.

Jm series of gear reducer drive winch. Mainly used for hoisting, pulling unloading, pushing, dragging heavy loads. Such as various sized concrete, steel and mechanical equipment installation and removal. Applicable to construction and installation company, mining, civil construction and installation of plant engineering.
Powered by a human or mechanical reels, winding traction rope to complete the work of the device.
Coaxial winch: (also known as mini hoist) motor and the drive shaft on the same rope, light and compact, space-saving (for which tonnage, including (200 kg, 250 kg, 300 kg, 500 kg, 750 kg, 1000 kg, etc.)
Slow winch: wire rope on the drum about 7 ~ 12m/min rated speed of the  lift hoist .
Quick windlass: wire rope on the drum of the winch rated speed of about 30m/min.
Electric winch: the motor as the driving force, by the driving means rotating the winch drum.
Speed ​​Winch: winch speed control can be adjusted
Hand winch: the human as the driving force by the drive means causes rotation of the  hoist equipment  drum.
Large tonnage of non-standard hoist: mainly used for hoisting, pulling unloading, pushing, dragging heavy loads. Such as various sized concrete, steel and mechanical equipment installation and removal. The structure is characterized rope arranged in order, there are hanging installation and reliable for piers, bridges, ports and other road and bridge projects and large industrial installation equipment is a use of force driving him running, and then through the electromagnetic brake and locking the brake control in the No power is not free running, while driven by the motor through reducer, drive a running wheel, roulette can be rolled on cable or something else.
Usually improve as more than 30 tons of large-tonnage hoist rope hoist , hoist large tonnage production technology in China only a few, and is currently the largest tonnage of 65 tons.

How rust group hanging electric hoist

Also known as synchronous group hanging electric  wire rope hoist ,  using disc brake motor forces, planetary gear reducer, stamping steel shell, limit switch hanging under the hanging device, the motor automatically stops to prevent the chain beyond, to ensure safety . Today to introduce you to how the group hanging electric hoist rust, common knowledge, for your understanding.


(1) electric hoist gear box, gear should be coated with rust containing barium petroleum sulfonate grease, and regularly check the corrosion protection film full circumstances and situations.hoist equipment If you find rust, chip or bamboo hardwood required scrape rust re-oiled, such as the original film is damaged or deteriorated, the application of kerosene or gasoline to clean, apply a rust grease
(2) electric hoist crane group exposed parts of the machined surface and exposed threaded surface (including screws and screw holes) and other perishable part, shall apply grease or other calcium-based rust rust grease.
(3) the surface should be painted rust wire rope lubricant,lift hoist in the non-operating conditions should be wrapped in a tarpaulin or plastic outer film.
(4) bearing hook to inject calcium-based grease rust to rust, and often checked, rust effect, to extend the use of the results.

Protection device group hanging electric hoist

1, overload and low load automatic protection, the use of limit switches can eliminate overload and low load group hanging electric wire rope hoist  for the damage caused.
2 button control handle, light heavyweight with rain function button controls and responsive.
3, anti-wear load sheave, the load sheave is made ​​of steel, and after the abrasion treatment of professional and smooth with the purpose of the chain. New design guidelines for the smooth chain embedded into the chain sheaves provided guidance.
4, the operating handle low voltage, standard chain manual hoist  operating handle voltage of 24V-36V low voltage control, low voltage can effectively protect the operator in order to prevent injury from electrical shock. (Operating handle voltage control 24V-36V also AQSIQ special lifting equipment mandatory.)
5, lifting height to the limit, chain electric hoist compact structure design can achieve the maximum possible lifting height.
6, the operation mode, electric chain  lift hoist  work is divided into single-speed or two-speed lifting, hanging hook or with a manual or electric trolleys, two-way or multi-way operation.
7, overload protection, and some high-end electric chain hoist for the additional security increased overload protection device. This is for the operator, hoist and the load is a special protection device. When the load is greater than the set value, the overload protection is automatically enabled, hoist lifting will stop automatically.

How to replace electric chain hoist slip line

In cement and other building materials companies, electric hoists are widely used. Mill site electric  lift hoist  slip line faults have occurred, to overhaul the inconvenience. The following describes a replacement for your electric chain hoist slip line method.

1 electric hoist mounted on the U-shaped multi-track. For this characteristic, we track the cable arranged in the middle of the upper beam. 10mm wire rope or cable using vertebral round, ends with a basket of flowers bolt.
2 sliding ring is two rings linked together,chainb lock there is a certain margin in order to avoid cable scratch cards. Steering ring is connected to two ring bolts, freely.
3 Put a cover on the steering cable on one end ring, leaving a good motor lead wire after rubber ring fixed to the lower end of the steering. Then one end of a plurality of slip rings to wear to the tightrope, then rubber line segment fixed at the lower end of the slip ring.hoist and trolley Frontage motor, can rotate freely. After terminating the power supply.
4 in the traction motor to turn to the center ring, pulling cable in a straight line or circular motion.
5 straight track above method may also be used.

Electric chain hoist brake failure occurs, how to solve

Electric  Rope hoist  brake there are many, cone, electromagnetic, Pond's plane brakes and so on. Larger than the electromagnetic brake down, but when the production chain hoist less difficult and longer brake life. Pond's brakes and conical brakes, brake down a small amount of time to do the electric chain hoist high degree of difficulty, life is short.
Hoist the reliability is very high, because the electric  lift hoist  is used conical rotor brake structure, brake motor shell, radiator fan design, but together, connected to a hot cooling fan under the surface, braking and friction braking with the motor cover. When the brake pads wear serious contact with the rear brake, the braking skid. When the brake is refused or failed, they should immediately stop using, adjust the brake.
1, the no-load motor hood.
2, unscrew the three screws.
3, the fastening nut, pay attention to tighten the screws.
4 to reposition the screw, install the cover.
Adjustment, do not immediately use electric chain hoist,manual hoist you should first find a small object hanging tests, such as reduced or no braking in the case, in accordance with a hole, such as a better course of action, and then find the rated load adjustment weight, suspended tests.

How to remove chain hoists bearings

Chain hoists are installed equipment, cargo lifting, stationary objects, lashing and traction ideal tool for a variety of functions.  manual hoist  brought us convenience, but there are problems in the course is also more common to introduce you to the following chain hoists in case of bearing damage, how to remove?

1, with a round stick insert hands pulling hoist bearing bore inside the nose, the nose  chain block   and chain hoists inner bearing chock appropriated missing out after disagreements groove direction bearing chain hoists, chain hoists renewal check the chain hoists bearings or bearing is damaged;
2 Loosen the inner bearing chain  lift hoist  head bolts, will head chain hoists chain hoists inner bearing housings together with the removed;
3, loosen the chain hoists hex screws on the bearing points, if the chain hoists with eccentric bearing, then loosen the socket head cap screws, the chain hoists head against the direction of rotation axis eccentric to play loose.

Mini electric hoist seven major feature

The use of mini electric rope hoist  most close to people's lives, generally divided into fixed and running style, can enhance the 1000 kg of cargo, especially for high-rise buildings to lift heavy items from downstairs. The following detailed description of your mini electric hoist seven major feature.

1 mini electric hoist design smart, easy to use.
(2) When the limit stopper baffle met, the lift will automatically stop the operation. .
3, such as wire rope reverse elevate,  lift hoist  motor will automatically stop working.
4 hoist hook design is divided into dynamic and static loading loading two states.
5 Household 220V power operation.
6 Plug the power cord is easy to use.
7  Wire rope winch  hook 360 ° rotation.