South Africa Explosion-proof Electric hoist

Explosion-proof electric wire rope hoist lifting capacity is 0.5-20 ton, lifting height is 1-100m

Specifications

Explosion-proof electric wire rope hoists are a series of products, designed and fabricated under the National Standard of GB3836-2000 (Electrical Apparatus for Explosive Gas Atmospheres). Both self-made and complemented factory-made explosion-proof motors and electrical apparatuses are designed, fabricated, checked and accepted according to the National Standard GB3836.1-2000 (General Requirements of Electrical Apparatus for Explosive Gas Atmospheres) and GB3836.2-2000 (Electrical Apparatus for Explosive Gas Atmospheres Flame-proof Enclosure “d”).

Scope of Use

  1. When there are flammable gases or explosive mixture of vapour and air as shown in the below table (table 1), the explosion-proof electric hoists can be installed on I-beam for lifting and for reciprocating liner or curvilinear movements in a safe manner.
  2. Environment temperature: -20℃ ~+40℃
  3. Altitude: below 1000 m
    Relative humidity: 85% (20±5 ℃)
  4. This series of products can be used with explosion-proof suspension crane or explosion-proof single-beam bridge crane according to different service requirements
  5. The advantages of the series of products are compact in structure, light deadweight, small in size and high in lifting capacity. They help to improve working environment and production with ensured safety in a workshop with explosive mixture.

Table 1

Explosion Group Temperature Class
T1 T2 T3 T4
IIA Ethane, Propane, Styrene, Xylene, Benzene, Zcetone, Carbon monoxide, Methyl acetate nitrogen, Pyridine Ethanol, Butane, Propylene, Alkyd ester, Polyethylene, Methylamine thiophene diacid, Dichloroethane Pentane,  Decane, Turpentine, Ethylcyclopentane, Fuel oil, amyl alcohol, Chlorobutane, Naphtha, THT, Petroleum Ethylal, Trimethylamine, Aether
IIB Acrylonitrile, Hydrogen cyanide, Coal oven gas Ethylele, Epoxyethane, Methyl acrylate, Furan Dimethyl ether, Acraldehyde, Butylene oxide, Hydrogen sulfide Diethyl ether, Dibutyl ether, Ethyl methyl ether, Tetrafluoroethylene
IIC Hydrogen, Water gas Acetylene    

Product Structural Features

The main features of this series of explosion-proof electric hoist structure are:

  1. This series of products is composed of several parts that can be separately disassembled. It is very convenient to use, maintain and repair, and can shorten the maintenance period.
  2. Its explosion-proof motor, explosion-proof control box and control buttons are separate flameproof structures.
  3. The parts are highly versatile and interchangeable.
  4. The reducer adopts standard modulus cylindrical gear for easy maintenance.

Parameters

Model BCD BMD
lift capacity Ton 0.5 1 2 3 5 10-16
lift height M 6 9 12 6 9 12 18 24 30 6 9 12 18 24 30 6 9 12 18 24 30 6 9 12 18 24 30 6 9 12 18 24 30
lifting speed m/min 8(0.8) 8(0.8) 8(0.8) 8(0.8) 8(0.8) 4(0.4)
travel speed m/min 20 20 20 20 20 20
wire rope diameter mm 4.8 7.4 11 13 15.5 15.5-17.5
line mm 0.22 0.34 0.5 0.6 0.7 0.7
structure D-6x37+1 D-6x37+1 D-6x37+1 D-6x37+1 D-6x37+1 D-6x37+1
I beam rail (GB706-65) 16-28b 16-28b 20a-30c 20a-30c 25a-63c 25a-63c
round rail Min.radius M 1.5 1.5 2 3 4 2 2.5 3 4 2 2.5 3 4 2.5 2.5 4 5 2.5 3.5 4 6 7.5 9
lifting motor Model BZD21-4 BZD22-4 BZD31-4 BZD32-4 BZD41-4 BZD41-4
capacity KW 8 1.5 3 4.5 7.5 7.5
rotation r/min 1380 1380 1380 1380 1400 1400
Phase 3 3 3 3 3 3
voltage V 380 380 380 380 380 380
currency A 2.4 4.3 7.6 11 18 30
frequency r/s 50 50 50 50 50 50
traveling motor Model BZDY11-4 BZDY11-4 BZDY12-4 BZDY12-4 BZDY21-4 BZDY21-4
capacity KW 0.2 0.2 0.4 0.4 0.8 0.8x2
rotation r/min 1380 1380 1380 1380 1380 1380
Phase 3 3 3 3 3 3
voltage V 380 380 380 380 380 380
currency A 0.72 0.72 1.25 1.25 2.4 2.4x2
frequency r/s 50 50 50 50 50 50
start times t/week 120 120 120 120 120 120
work class JC% 25% 25% 25% 25% 25% 25%
Dimension H(mm) ~630 ~685 ~780 ~860 ~960 ~958 ~1085 ~1160 ~1310 ~1350
L2(mm) 126 159 187 230 274 303
L1(mm) 276 315 341 372 425 458
L(mm) 675 747 820 818 916 1014 1210 1406 1602 880 980 1018 1280 1480 1680 991 1094 1197 1403 1609 1815 1112 1217 1322 1532 1742 1952 1650 1834 2015 2377 2730 3101
m(mm) 318 390 462 401 499 597 793 989 1185 412 512 612 812 1012 1212 457 561 658 869 1075 1281 488 615 704 895 1105 1315 967 1148 1329 1691 2053 2415
n (mm) 190 196 240 264 264 375
h   mm 120 124 155 173 173 234
Φ  mm 14.5 19 23 25 25 37
B(mm) ~950 ~950 ~1010 ~1010 ~1010 ~1120
E(mm) 490 584 740 848 848 1068
F(mm) 355 354 400 438 438 612
Weight(kg) Travel type 215 218 223 247 256 264 282 300 318 325 344 363 401 439 471 411 431 471 511 551 591 617 640 688 733 778 823 1070 1190 1310 1501 1710 1910
fixed type 147 150 155 179 188 296 214 232 250 246 265 284 322 360 398 332 352 392 432 472 512 479 502 550 595 610 685 794 914 1034 1234 1434 1634

 

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