1.The rliable liting chain design and special bearing on both sides
makes the structure more compacted and makes the transmission
more flexible.
2.Muliple points support structure endows the transmission system
with morerational load,more fexible operation and lower falure rate.
3.The transmission gear is oquippedwith the best tooth form and is
precisely made by low alloy steel.then after high temperature
treatment such as carburization and final surface treatment,the
surface is smooth,clean,sturdy,ant-wear,anti-rust and durable.
4.Double ratchet braking makes it more safe and reliable.
5.The patented tri-angle spline long axis device makes it easy for
assembly and disassemblyand thus makesitwidely used for outdoor
working.
6.High quality spraying surface and patented shape design.
7.The forged up and down hook frame have attractive shape and
high strength.
8.The nook is forged by high quality alloy and then treated by high
temperature treatmentIt wil notbecracked but just bended when ov
| Product No. | Size | Box/Ctn(pcs) | Gross/Net Weight(kg) | Ctn Size(cm) |
| BK-421001 | 0.25T×3m | 1/1 | 7.0/6.5 | 19*13*14 |
| BK-422001 | 0.25T×6m | 1/1 | 9.1/8.6 | 19*13*14 |
| BK-423001 | 0.25T×9m | 1/1 | 10.15/9.65 | 19*13*16 |
| BK-421002 | 0.5T×3m | 1/1 | 10.2/9.6 | 28*17*18 |
| BK-422002 | 0.5T×6m | 1/1 | 13,56/12.96 | 28*17*18 |
| BK-423002 | 0.5T×9m | 1/1 | 15.24/14.64 | 28*17*20 |
| BK-421003 | 1T×3m | 1/1 | 13.0/12.0 | 30.5*22.5*17.5 |
| BK-422003 | 1T×6m | 1/1 | 20/18 | 30.5+22.5*17.5 |
| BK-423003 | 1T×9m | 1/1 | 20.20/19.2 | 30*18*21 |
| BK-421004 | 1.5T×3m | 1/1 | 20/17.5 | 38.5*26.5*20.5 |
| BK-422004 | 1.5T×6m | 1/1 | 24.5/23.7 | 33*20*24 |
| BK-423004 | 1.5T×9m | 1/1 | 27.8/27 | 33*20*26 |
| BK-421005 | 2T×3m | 1/1 | 23/20.5 | 37.5*26.5*19.5 |
| BK-422005 | 2T×6m | 1/1 | 29.5/27 | 37*27*20 |
| BK-423005 | 2T×9m | 1/1 | 33.78/33.08 | 33*20*26 |
| BK-421006 | 3T×3m | 1/1 | 28/25.5 | 41.5*26.5*20 |
| BK-422006 | 3T×6m | 1/1 | 37/34.5 | 46.5*32.5*21 |
| BK-423006 | 3T×9m | 1/1 | 45.28/44.48 | 37*25*30 |
| BK-421007 | 5T×3m | 1/1 | 44/40 | 46.5*32.5*21 |
| BK-422007 | 5T×6m | 1/1 | 63/59 | 43*29*30.5 |
| BK-423007 | 5T×9m | 1/1 | 79.5/74.5 | 42*28*32 |
| BK-421008 | 7.5T×3m | 1/1 | 69.7/61.5 | 52*34*44 |
| BK-422008 | 7.5T×6m | 1/1 | 95/86.8 | 52*34*44 |
| BK-423008 | 7.5T×9m | 1/1 | 120.3/112.1 | 52*34*46 |
| BK-421009 | 10T×3m | 1/1 | 86.7/78.5 | 52*34*44 |
| BK-422009 | 10T×6m | 1/1 | 113.2/105 | 52*34*44 |
| BK-423009 | 10T×9m | 1/1 | 139.7/131.5 | 52*34*46 |
| BK-421010 | 15T×3m | 1/1 | 180/170 | 86*35*62 |
| BK-422010 | 15T×6m | 1/1 | 193.2/183.2 | 86*35*62 |
| BK-423010 | 15T×9m | 1/1 | 199.8/189.8 | 86*35*64 |
| BK-421011 | 20T×3m | 1/1 | 347.00/330.00 | 92*39*62 |
| BK-422011 | 20T×6m | 171 | 360.20/343.20 | 92*39*62 |
| BK-423011 | 20T×9m | 1/1 | 366.80/349.80 | 92*39*64 |
| BK-421012 | 30T×3m | 1/1 | 350/365 | 86*64*73 |
| BK-422012 | 30T×6m | 1/1 | 444.2/429.2 | 86*64*73 |
| BK-423012 | 30T×9m | 1/1 | 523.4/508.4 | 86*64*75 |
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