Material is aluminum bronze and bronze chain hoists Explosion levels

Explosion-proof electric  Wire rope hoist  lifting equipment is not the only, and explosion-proof chain hoists, the same product in the job it is friction between the impact will not occur mechanical sparks to effectively prevent fire accidents, ensure that the national wealth and personal safety, but also machinery and mechanical maintenance of essential special tools.

Explosion-proof hoist and hoist the main difference is that ordinary proof chain hoists material is aluminum bronze and beryllium as the blank, chain hoists shell is also used in H62 copper alloy materials. Why use this information as proof chain hoists raw materials, mainly bronze alloy, aluminum bronze alloy does not occur when impact or friction sparks, it is very suitable for the manufacture of flammable, explosive, corrosive place under magnetic and safe to use. Mainly alloy containing 30% oxygen or 6.5-10% methane empty oxygen withstand 561LJ impact energy, the impact of 20 magnetic, neither of sparks and burning.
Explosion-proof grade is proof  chain block   level is d Ⅱ AT2 to d Ⅱ AT4, d represents flameproof; II on behalf of Class II proof that Plant Explosion. C stands for C-level hazardous areas, that is, for the most dangerous region, T4 temperature class representatives, from T1-T6, T6 is to achieve the highest.
The force of friction parts chain hoists including chain hoists lifting round form, siding, bracelet wheel, hooks, gears, gear shafts are made ​​of aluminum bronze and bronze alloy made ​​of data, proof manual hoist s can be widely applied the petroleum, petrochemical, gas stations, oil depots, gas, chemical, military, power, mining, electronics, railways, and other potential fire and explosion hazard environments.

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.

Group hanging electric hoist performance of each component

The following detailed description of your group hanging electric hoist each part performance.
1, lifting chain: Φ7.1mm and Φ11.2mm 80 Class A surface hardening lifting chain, to ensure their safety and durability. Lifting chains tough surfaces can prevent product damage and softening of the core material, so that the lifting chain, long-term performance.
Group hanging electric Wire rope hoist  chain of low-carbon steel, the chain is more resilient, and more rugged wear at work to ensure the safety. Electric chain hoist can also be customized according to customer requirements lengthened, allowing you to use more convenient worry.

2, dual brake system: two complete and independent of braking system not only reduces the possibility of brake failure, also enhances braking safety and conducive to heat.
3, the electromagnetic brake: new brake system react quickly, and provides a positive braking force. Use of non-asbestos brake linings greatly extend the maintenance cycle. Brake system has been tested more than 22,500 times.
4, the mechanical brakes: very reliable mechanical brake with electromagnetic brake coordination role and can turn at any time to stop the machine.
5, the transmission gear:lever hoist standard chain hoist generally use helical gears provide reliability and through minimizing gear meshing impact and vibration prolongs life. The special design of the gear enhanced durability of the gear, and the gear is made from the alloy, after the heat treatment to obtain the fine professional maximum strength.
6, oil bath lubrication: Gearbox oil bath lubrication system using MODE.chainb lock Gears with oil bath lubrication system for mechanical brakes with cooling agent.
7, the relay: Relay can protect the power cord connection error (reverse link) the damage caused on the hoist.