VB Chain Blocks

Keyword:VB Chain Blocks   Model:0.5Ton-50T   Time:2018-10-22 13:02:35

chain blocks are portable lifting device easily operated by hand chain which are specially advantageous for lifting work in the open air and places where no power supply in available----a kind of manual lifting hoists, which also has different names like chain block hoist, manual chain blocks.

FEATURES

• Specially heat-treated and proof tested steel chain hoists equipped with a safety guard

• Adopt automatic double-pawl braking system ensuring safety and security of operators

• With double friction brake discs and drop forged hook special alloy steel that is exclusively

• More thickness, high strength, great flexibility, high durability and comfortable to use

• Corrosion-resist cover, gear cover and side plates for good quality and protection

• The static test is 4 times of capacity, and running test is 1.5 times of capacity  one by one

• Complies with EC Council Directive 2006/42/EC Machinery, ASME B30.16,AS1418.25

• Adopt double pawls automatic anti-failure brake  mechanism for safety operation

• Reliable operation with minimum maintenance and complete after-sale-service

• High efficiency and small hand pull, light weight, compact structure and easy  handling

• Adopt double enclosure of the brake mechanism to keep out rain water and dust.

• Unique design of the chain guide wheel and elegant  and exquisite appearance

• Heat treated wall panels, various gears and long and  short shafts have higher strength

• Hooks and chains are subjected to quenching and  tempering heat treatment

• Upper and lower lifting hooks are forged and has  safety latches in case of emergency

Capacity                             0.5Ton-50Ton
Type                                    VB
Use                                     Lifting Up/Down
Condition                           New
Trademark                          Ramhoist
Usage                                 Construction Hoist
Power Source                   Hand
Sling Type                          Chain
Safety factor                     4:1
Lift Speed                          Manual
Warranty                            1 Year
After-sales Service          Provided 
Color                                 yellow or as required
Drive Mode                      Gear
Certification                     CE,  ISO9001
Operation                         Hand Operated
H.S. Code                         84251900   
Package                           carton   

INTRODUCTIONS

VB chain  blocks are portable lifting device easily operated by hand chain which are  specially advantageous for lifting work in the open air and places where no  power supply in available----a kind of manual lifting hoists. VB chain blocks  have experienced the forging and heat treatment, and they have surprised  capacity they are not easily to break when lifting heavy loads and they have  the low failure times/rate. VB chain blocks have high brake safety factor and  are not to abrade, which achieve the long life span and the safety of  operators.

           VB chain blocks equip hit-resistance gear box and the brake cover of the restriction  parts of special nuts. In order to protect the bolt, it makes the product’s  maintenance achieve the great improvement. Thanks to the bearing structure and  unique gear bearing, the top support mechanism mainly utilizes the rounding  bearing. Besides, the special double arm ensures the normal working of one  spring support when another spring is broken, which greatly improves the  durability of products. The gears are small in size but have great function and  high intensity. VB chain blocks are equipped with double protection cover which  is water-proof and rust-resistant. They require the less hand pulling force and  can always move and lift smoothly. And the cover are not to change its shape  because they are highly tested and experienced the dealing of many impacts.

           The VB chain blocks adopt the compact structure and light weight but with  elegant appearance and unique and creative design. The painting spray is even and the grooves have been calculated reasonably. The hard cover protects the inner parts and components efficiently. Chains are blacken which not only  prevent chains form rusty but also lengthen the lifespan of chains. We also  accept the designed products to meet the requirements of customers. What’s  more, the plate finish of VB chain blocks is electrophoretic painting which  protects form moisture. Hoist cover painting is done with special technology for  long lasting color. They are also equipped with end anchor and each anchor is  designed to touch the hoist plate so that it can withstand more force and be stronger. Drop forged steel suspension  & load hooks are heat treated and fracture resistant. In case of dangerous overloading or abuse, the hook does not fracture but will slowly yield.

             The  blocking chain machine can fit the chain from getting stuck in the hoists when  pulling the heavy objects. Confirms to European Standards to prevent it from  being stuck in the middle of wallboard, it has 4.5 times safer than traditional chain blocks in terms of anti-disengagement chain. Besides, the load chain can be pulled freely and easily through the chain blocks in both directions to attach the load or to tension the chain. For safety reason free chains cannot be done when the block is under load. All of our VB chain blocks are meet the 1005 EN standard with  anti-corrosion coating, they can work in tough environments. And they are all  check in the whole manufacturing process and 100% inspection before shipment ensuring the quality.

             TOP quality VB chain  blocks are widely applied in factories, mines, farms, construction sites, wharves,  docks and warehouses for installation of equipment, as well as for loading and  unloading goods. VB chain hoists can be attached to a trolley of any type as a  traveling chain hoists are suitable to monorail overhead conveying system, and  travelling crane and jib crane. They can also used in double beam cranes, gantry cranes, bridge cranes,  tower cranes, single grinder cranes, lifting platforms, small cranes.

           VB chain blocks are also called Hand chain hoists, Hand operated hoists, Mechanical  hoists, Manual hoists, mini manual chain hoists, manual pulley hand chain hoists, Toyo chain hoists, Toyo chain blocks, manual operated chain fall engine hoist blocks. It is TOYO type, Its type also called VC-B, VCB, VS, HSZ-T, TD, 619, HSZ-A619, all mean the same thing.

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Detailed Description

1. Bolts
         The parts of VB chain blocks are fixed by different sizes of bolts which have high intensity. In order to ensure the quality, we adopt the  advanced and great bolts to make fix safer.

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2. Hook
         The hooks adopt high quality alloy steel. We widen the space of  hooks and both the hooks utilize the high quality alloy steel material,  experienced with heat treatment and the strict test, they meet high standard of the international. What’s more, they can bear the load when they are over 4  times which greatly improve the overload situation. It has big capacity and  they make light a reality and more reliable and safer than others.

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3. Latch
         With the latch, the VB chain blocks are safer.

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4.  Gears
         VB chain blocks have high quality tooth shape rounding gears  which are produced by precise maching and other heat treatment technology and  strict surface treatment so that their surface are tidy, hard,  corrosion-resistant and rust protection. Therefore, they have long lifespan and  these equipemnt greatlty improve the operating efficiency.

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5.  Bearings
         The inner staructure of VB chain blocks adopt the bearing  construction to replace the traditional steel jacket which have great friction,  which greatly improve the rounding efficiency and decreasing the hand pulling.  Comparing the traditional chain blocks, VB series have longer lifespan and greatly shorten the time for maintenance and inprove the operating speeed.

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6.  Brakes
         VB chain blocks adopt double brake systems which improves the safety factor for more than twice and makes the brake system more safer in order to avoiding emergency.

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7.  Enclose
         VB chain blocks use the high quality alloy steel protection alloy steel with surfacing experiencing special granular treatment so they have  excellent characteristics such as corrosion-resistant, and rust-resistant. The designs of thickening cover make it impact-resistant, which efficiently protect the stable operating of inner structure.

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8. Chain
         Chains adopt the G80 special chains of which the pull force can  reach up to the degree that they won’t break until the load is more than 4.5  times more than the load limit. It greatly improve safety factor and the  effective pull can be up to more than 2000 times.

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9.  Lock
         The lock are widen both sides to prevent it trapped between the wallboards.

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10.  Overload device
         They adopt good casting and special painting detal hand wheel,with driving shaft to rotate together ,so driving disk gear,pinion shaft  ,spline gear and chain sprocket,if pulling hand chain ,can control rust and easy operation and Labor saving.

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11. Pawl
         The lock gear side have bush which can keep well-oiled with hub.

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12.  End anchor

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Others
           Operating
           1. Moving products from one place to another
           2. Uprooting trees
           3. Installing underwater pump
           4. Laying conduits and pipelines

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Packaging  details
           The normal package is wooden box(Size: L*W*H). If export to european countries,the wooden box will be fumigated.If container is too  tigher,we will use pe film for packing or pack it according to customers' special request.

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The parameters include model, capacity, standard lifting height, running test load,  headroom drawn close-up, effort required to lift max load, load chain  diameters, number of chain strand, hand chain diameters, dimensions, extra  weight per meter extra lift,
           Engineers available to service machinery overseas
           Fatigue  tested at 1.5 times of working load limit to 2000 cycles.
           Standard:  EN 13157

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Cautions
           The folllowing examples are forbidden such as overload, leaning lifting, over limit height,

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           ①Pay attention to clear the chain blocks and cover it with oil after using it and keep it in dry place to prevent the blocks from moist and rust.
           ②Make maintenance and repairing should be played by professional workers. The unprofessional operators are forbidden to disassemble them.
           ③When VB chain blocks have experienced the clearing an maintenance, they should be tested carefully and ensure the normal operating. When the brake system is safe to use, operators can use it.
           ④The cover of brake should be in clear situation and be inspected frequently in case of  the failure of brake to the troubles.

Technical info

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Specifications

Type
Capacity (t)
Standard Lift (m)
Effort required to lift    full load (N)
Load Chain
Test Load (t)
Weight (kg)
Additional Weight per    1m Lift(kg)
Diameter (mm)                   ×chain falls
VB005
0.5
2.5
200
5 × 1
0.75
8.4
1.5
VB01
1
320
6.3 × 1
1.5
12
1.8
VB015
1.5
360
7.1 × 1
2.25
16.2
2.1
VB02
2
3
365
8× 1
3
20
2.3
VB03
3
385
7.1× 2
4.5
24
4.2
VB05
5
435
9 × 2
7.5
41
5.1
VB10
10
435
9 × 4
15
79
10.2
VB20
20
435×2
9× 8
30
193
20.4
VB30
30
435×2
9 × 12
45
220
30.6
VB50
50
435×2
9 × 24
75
1092
61.2

 

Dimensions (mm)

Type
Capacity (t)
A
B
C
D
K
VB005
0.5
131
127
270
35
30
VB01
1
140
158
317
40
34
VB015
1.5
161
187
399
45
38
VB02
2
161
187
414
50
41
VB03
3
161
210
465
58
48
VB05
5
186
253
636
64
52
VB10
10
207
398
798
85
64
VB20
20
215
650
890
110
85
VB30
30
350
680
1380
110
85
VB50
50
406
962
2578
170
130

 

 

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