New overhead crane installation

New overhead crane installation

11 month ago

30 0

HENAN MAJOR INDUSTRIES IMP. & EXP. CO., LTD.

 3 year year

Product details

Product introduction

New Chinese explosion-proof electric hoist is one of a series of explosion-proof electric hoists developed by our company based on the new Chinese electric hoist and is features with compact structure, excellent performance, safety and reliability.

PRODUCT DETAILS:

New Chinese explosion-proof electric hoist meets the requirements of national standards such as Explosion-proof Electric Hoist (JB/T 10222), Explosive Environment Part 1: General requirements for equipment (GB3836.1) and Explosive Environment Part 2: Equipment protected by flameproof enclosure "d" (GB3836.2). Work level of the hoist is M5. The working environment temperature of the crane is - 20 ℃ ~ + 40 ℃. It is suitable for working in explosive gas environments such as the explosion-proof level is not higher than level B or C or the environment is formed by combustible gas, steam and air and ignition temperature group is not lower than T4 (135 ℃). The applicable hazardous area is zone 1 or zone 2, and is not applicable to zone 0.

Note:

Zone 0: A site that explosive gas mixture appears continuously, frequently for a short time or exists for a long time under normal conditions.

Zone 1: A site that explosive gas mixture possibly occur under normal conditions.

Zone 2: A site that explosive gas mixture can not appear under normal conditions but equipment failure or mis-operation may occur occasionally and shortly.

See the following table for examples of hazardous gases applicable to the crane. For the other hazardous gases not listed in the table, see the appendix of GB3836.1.

Explosion-proof mark（Category,level）

Hazardous gas

ExdⅡBT4

Ethane, propane, butane, heptane, decane, ethylene, propylene, carbon monoxide, gasoline, acetone, styrene, toluene, benzene, methanol, ethanol, vinyl chloride, acetaldehyde, diethyl ether

ExdⅡCT4

Hydrogen, water gas, acetylene and gases other than ExdⅡCT4

Ignition group

Temperate group

Allowable maximum surface temperature (º C)

450

300

200

135

100

New Chinese explosion-proof electric hoist is equipped with original spatial rod support structure and hoisting device is arranged in the classic "C" type structure. The hoisting drive device drives the large-diameter drum group and the coaxial three-in-one drive device simultaneously drives the wheel groups on both sides. The rope wedge device and the pulley group are suspended on the support rod, in which the high-strength nylon pulley group and the hook group are used.

PRODUCT ADVANTAGES:

(1)Independent and controllable core technology

Cooperate with key universities and research institutions to develop core parts and components, and manufacture completely independently to achieve controllable product quality and delivery time.

The motor is an explosion-proof three-phase induction motor with variable frequency

electromagnetic braking. The speed of the motor is stable, with large overload capacity and high mechanical strength, which is especially suitable for equipment with short-time or intermittent operation and frequent hoisting and braking. The standard insulation grade of the motor is F and the protection grade is IP65.

Reducer adopts a fully enclosed hardened face gear. After carburizing and quenching, the gear face hardness can reach 58-62HRC, with high bearing capacity and low working noise. The reducer case cover has high strength and good performance. The reducer has a second brake interface, which can greatly meet the user's requirements.

(2)Modular design

Four hoisting drives and two running drives can match with full series 1-20t new Chinese electric hoist; The same hoisting devices can be used in four structures: standard headroom mode, low headroom mode, crab running type mode and fixed type mode.

(3)Compact structure and small limit of size

All series adopt large-diameter drums, which can effectively increase the hoisting height and reduce the left and right limits. Smaller working blind area of the crane can provide users with greater use space.

(4)Maintenance free, energy saving and environmental protection design concept

a.Reducer with high-precision hardened face gear has been filled with world famous brand lubricating oil before delivery, and it does not need to be replaced within the product life cycle.

b.Adopt world famous brand and maintenance free steel rope.

c.High-strength nylon fairlead, upgrading from vulnerable parts to durable goods.

d.The electromagnetic disc brake has the functions of automatic brake clearance compensation and maintenance free.

e.The motor power is reduced by 30% compared with the traditional electric hoist.

Work efficiency is increased by more than 20%

f.through the application of frequency conversion positioning technology.

g.The noise of the whole machine is below 70 dB.

h.Brake pads of the brake is designed without asbestos.

i.The sliding friction among the nylon fairlead, steel rope and the drum will not produce metal dust, providing high clean operation space for workers.

(5)Intelligent, remote maintenance design concept

a.Security monitor

b.Big data management, cloud platform connection

c.Real-time monitoring by mobile APP

PERFORMANCE PARAMETERS:

Lifting capacity: 3t～20t

Lifting height: 6m～30m

Work level: M3～M5