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DAWSON Heavy Duty Snatch Block, Lifting Pulley Blocks, Wire Rope Pulley

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DAWSON Heavy Duty Snatch Block, Lifting Pulley Blocks, Wire Rope Pulley

- Dawson Group Ltd. - China Manufacturer, Factory, Supplier

Heavy Duty Snatch Blocks, Wire Rope Pulley Block - Dawson Group Ltd. - China Manufacturer, Supplier, Factory


Dawson Heavy Duty Forged Steel Sheave Snatch Block with Hook - Dawson Group Ltd. - China Supplier, Factory   Dawson Heavy Duty Forged Steel Sheave Snatch Block with Hook - Dawson Group Ltd. - China Supplier, Factory, Manufacturer


Dawson Industry Solutions:

The second generation of Chinese block with international standard is made of special high strength alloy steel, full die forging steel wheel or hot rolled steel wheel.

Small size, stronger pull, more safe, meet the industry for higher safety of the lifting requirements.


Dawson Heavy Duty Snatch Block with Hook (forged steel sheave)

Item No. Working Load Pulley Diameter Applicable wire rope D W H L Unit weight
TYPE (Ton) (in.) (mm) (mm) (mm) (mm) (mm) (KG)
2111-3’’×2T 2 3 7--9 75 76 54 237 2.2
2111-4.5’’×4T 4 4.5 10--12 115 116 71 355 6.8
2111-6’’×8T 8 6 16--19 152 155 90 495 12.2

  

Heavy Duty Forged Steel Sheave Snatch Block with Shackle - Dawson Group Ltd. - China Factory, Manufacturer   Heavy Duty Forged Steel Sheave Snatch Block with Shackle - Dawson Group Ltd. - China Factory, Manufacturer, Supplier

Heavy Duty Snatch Block with Shackle(forged steel sheave)

Item No. Working Load Pulley Diameter Applicable wire rope D W H L Unit weight
TYPE (Ton) (in.) (mm) (mm) (mm) (mm) (mm) (KG)
2121-3’’×2T 2 3 7--9 75 76 54 237 2.3
2121-4.5’’×4T 4 4.5 10--12 115 116 71 355 6.7
2121-6’’×8T 8 6 16--19 152 155 90 495 13.6

Technology advantages: 

1. All key parts are forged with high-strength alloy steel and hear treated.

2. 4:1 safe factor, CE certificate, and meets EN 13157, and ASME 30.26

3. Equipped with carbon steel sheave and grease nipple, convenient for operating and repairing, and also extending service life.

4. DS-JDB self-lubricating sliding bearing, conveniently, does not need to be greased quiet often, the national patent.

5. Permanent product batch no., blocks can be tracking easily.

6. Equipped with forged steel sheave or hot-rolled steel sheave.

7. Customized according to the clients’ requirements.


Heavy Duty Hot-rolled steel sheave Snatch Block with Hook - Dawson Group Ltd. - China Manufacturer, Supplier, Factory   Heavy Duty Hot-rolled steel sheave Snatch Block with Hook - Dawson Group Ltd. - China Manufacturer, Supplier,

Heavy Duty Snatch Block with Hook(Hot-rolled steel sheave)

Item No. Working Load Pulley Diameter Applicable wire rope D W H L Unit weight
TYPE (Ton) (in.) (mm) (mm) (mm) (mm) (mm) (KG)
2111-6’’×8T 8 6 16-19 152 155 90 495 12.2
2111-6’’×10T 10 6 16-19 152 155 95 520 17
2111-8’’×8T 8 8 20-22 202 205 103 551 21
2111-10’’×10T 10 10 24-26 254 260 115 562 35
2111-10’’×12T 12 10 24-26 254 260 115 705 39
2111-10’’×15T 15 10 19-22 254 260 135 713 56
2111-10’’×20T 20 10 25-29 254 257 150 777 60
2111-12’’×12T 12 12 24-26 304 307 133 801 58
2111-12’’×15T 15 12 19-22 304 307 135 804 60
2111-12’’×20T 20 12 25-29 304 307 150 833 68

   

Heavy Duty Hot-rolled steel sheave Snatch Block with Shackle - Dawson Group Ltd. - China Manufacturer, Factory, Supplier   Heavy Duty Hot-rolled steel sheave Snatch Block with Shackle - Dawson Group Ltd. - China Manufacturer, Factory

Heavy Duty Snatch Block with Shackle(Hot-rolled steel sheave)

Item No. Working Load Pulley Diameter Applicable wire rope D W H L Unit weight
TYPE (Ton) (in.) (mm) (mm) (mm) (mm) (mm) (KG)
2121-6”×8T 8 6 16-19 152 155 90 495 13.6
2121-6’’×10T 10 6 16-19 152 155 95 520 16
2121-8’’×8T 8 8 20-22 202 205 103 560 19.3
2121-10’’×10T 10 10 24-26 254 260 115 679 35
2121-10’’×12T 12 10 24-26 254 260 115 685 40
2121-10’’×15T 15 10 24-26 254 260 135 713 54
2121-10’’×20T 20 10 25-29 254 257 150 777 56
2121-12’’×12T 12 12 24-26 304 307 133 767 56
2121-12’’×15T 15 12 24-26 304 307 135 788 58
2121-12’’×20T 20 12 25-29 304 307 150 833 62
2121-14’’×22T 22 14 29-32 355 360 140 952 112
2121-16’’×22T 22 16 29-32 406 410 140 1019 122
2121-16’’×30T 30 16 32-35 406 415 155 1128 164
2121-20’’×30T 30 20 32-35 508 515 184 1230 213
2121-24’’×50T 50 24 38-42 609 615 189 1330 340
2121-30’’×85T 85 30 46-50 762 765 236 1910 590
2121-32’’×100T 100 32 68-72 812 824 310 2100 650
2121-16’’×120T 120 35 78-82 889 900 330 2350 700

Technology advantages(hot-rolled steel sheave): 

1.All key parts are forged with high-strength alloy steel and hear treated.

2.4:1 safe factor, CE certificate, and meets EN 13157, and ASME 30.

3.Equipped with carbon steel sheave and grease nipple, convenient for operating and repairing, and also extending service life.

4.DS-JDB self-lubricating sliding bearing, conveniently, does not need to be greased quiet often, the national patent.

5.Permanent product batch no., blocks can be tracking easily.

6.Equipped with forged steel sheave or hot-rolled steel sheave.

7.Customized according to the clients' requirements.

   

DS-HY、DS-HQ Series Single Wheel Block - Dawson Group Ltd. - China Supplier, Factory, Manufacturer   DS-HY、DS-HQ Series Single Wheel Block - Dawson Group Ltd. - China Supplier, Factory

DS-HY、DS-HQ Series Single Wheel Block - Dawson Group Ltd. - China Factory, Manufacturer, Supplier


DS-HY Series General Block with Double Rolling Bearing (0.5T-200T)

Solution of DS-HY Series General Block:

DS-HY series has been researched and developed by our company and the Hoisting Machinery Research Institute of the Machinery Department together according to the characteristics of the forestry field. Different from DS-HQ series,”DS-HY” series of pulley block is equipment with rolling bearing, so as to turn more easily, and be faster.It has been derived according to the original national standard JB/T9007.2-1999:, which has filled in the gap of block industry in China.


DS-HY、DS-HQ Series Single Wheel Block


Name
 
Size Rated Slinging Load(TON) Suitable Steel Wire Diameter(mm) Sheave Diameter(mm) Packaging box volume(cm³ Qty.per box(set)
Single pulley hook(chain/ring)block DS-HYG(L)K1-0.5 0.5 6.2 85 40×40×14 20
DS-HYG(L)K1-1 1 7.7 106 37×37×14 10
DS-HYG(L)K1-2 2 11 142 40×40×17 6
DS-HYG(L)K1-3.2 3.2 12.5 166 45×24×16 3
DS-HYG(L)K1-5 5 15.5 202 53×25×18 3
DS-HYG(L)K1-8 8 20 264 53×25×18 1
DS-HYG(L)K1-10 10 20-23 300 Plastic blister packaging 1
DS-HYG(L)K1-16 16 25 390 Plastic blister packaging 1
DS-HYG(L)K1-20 20 28-31 436 Plastic blister packaging 1
DS-HYG(L)K1-32 32 35-38 490 Plastic blister packaging 1
DS-HYG(L)K1-50 50 40-43 560 Plastic blister packaging 1


DS-HY、DS-HQ Series Muti-Wheel Block - Dawson Group Ltd. - China Factory, Manufacturer, Supplier   DS-HY、DS-HQ Series Muti-Wheel Block - Dawson Group Ltd. - China Factory, Manufacturer

DS-HY、DS-HQ Series Muti-Wheel Block


Name
 
Size Rated Slinging Load(TON) Suitable Steel Wire Diameter(mm) Sheave Diameter(mm) Packaging box volume(cm³ Qty.per box(set)
Double-sheave hook(swinging ring)block DS-HYG(D)123-1 1 6.2 85 37×37×14 10
DS-HYG(D)124-2 2 7.7 106 40×40×17 8
DS-HYG(D)125-3.2 3.2 11 142 45×24×16 4
DS-HYG(D)12-5 5 12.5 166 53×25×18 4
DS-HYG(D)2-8 8 15.5 202
1
DS-HYG(D)2-10 10 17 226
1
DS-HYG(D)2-16 16 23 300
1
DS-HYG(D)2-20 20 26 348
1
DS-HYG(D)2-32 32 31 436
1
Three-sheave swinging ring block DS-HYG(D)3-3.2 3.2 7.7 106
1
DS-HYG(D)3-5 5 11 142
1
DS-HYG(D)3-8 8 12.5 166
1
DS-HYG(D)3-10 10 15.5 202
1
DS-HYG(D)3-16 16 17 226
1
DS-HYG(D)3-20 20 20 264
1
DS-HYGD3-32 32 26 348
1
DS-HYGD3-50 50 31 436
1
Four-sheave swinging ring block DS-HYD4-8 8 11 142
1
DS-HYD4-10 10 12.5 166
1
DS-HYD4-16 16 15.5 202
1
DS-HYD4-20 20 17 226
1
DS-HYD4-32 32 23 300
1
DS-HYD4-50 50 28 390
1
Five-sheave swinging ring block DS-HYD5-20 20 15.5 202
1
DS-HYD5-32 32 20 264
1
DS-HYD5-50 50 26 348
1
DS-HYD5-80 80 31 436
1
Six-sheave swinging ring block DS-HYD6-32 32 17 226
1
DS-HYD6-50 50 23 300
1
DS-HYD6-80 80 28 390
1
DS-HYD6-100 100 31 436
1
Eight-sheave swinging ring block DS-HYD8-80 80 26 348
1
DS-HYD8-100 100 28 390
1
DS-HYD8-160 160 31 436
1
DS-HYD8-200 200 34 490
1
Ten-sheave swinging ring block DS-HYD10-200 200 31 436
1

Technology advantages:

1. Rolling bearings are installed, thus the friction coefficient is small and the tackle rotates more flexibly.

2. The main parts are made of alloy steel, which is superior to national safety standard.

3. The lubricant is filled up before assembling, the service life will be lengthened with more than 3 times than that of other general blocks.


DS-JDB Bronze Bearing Block - Dawson Group Ltd. - China Factory, Manufacturer, Supplier


Industry solutions:

The traditional metallurgical powder sleeve and copper sleeve are easy to wear and wear oil to affect the construction. According to the problems encountered by the users, the research center of Dawson Block is constantly experimenting. Finally, the DS-JDB embedded solid oil copper alloy sliding bearing with self lubrication, no oil injection and damping and wear resistance is developed, and its service life is more than 10 times of common metallurgical powder set, and it is another new invention in the industry.


Technological advantages:

DS-JDB inlaid solid oil and copper alloy sliding bearing have the advantages of reliable performance and long service life. Compared with ordinary bronze bushing, the wear resistance is more than 10 times that of the bronze bushing.

Comparison between DS-JDB inlaid solid oil bearing copper alloy sliding bearing and bronze sleeve

Experimental pressure 24.5N/mm2
Model Lubrication condition Wear amount(mm) (Time)
The copper sleeve Oil lubrication 0.125 100
DS-JDB embedded solid oil bearing lubricating bearing Self lubrication 0.013 100


DS-MC Nylon Sheave Series Hoisting Block - Dawson Group Ltd. - China Factory, Manufacturer, Supplier   DS-MC Nylon Sheave Series Hoisting Block - Dawson Group Ltd. - China Factory, Manufacturer


Industry solutions:

According to the needs of the hoisting belt in port, wharf and sea construction, the DS-MC nylon block has been developed with the R&D center of Dawson. The pulley has wide and narrow wheels, which is suitable for the demand of different hoisting belts.

 

The lifting sheave made of DS-MC nylon has the following characteristics

1. DS-MC nylon sheave has good wear resistance and self lubrication performance, and its wear life is 4-5 times higher than that of steel and iron sheaves.

2. Do not damage the dual material, more suitable for high-strength sling.

3. To meet a wide temperature range, can be used in the temperature range of 40 to 100 DEG C.

4. Can shock absorption, do not produce noise, smooth operation.

5. Light weight, corrosion resistance, non stick water and no rust. It is more suitable for port, dock and offshore operation.

6. The mechanical processing performance is good, the shape stability is high.


DS-MC Nylon Block Parameters

External Dia (mm) Inner Dia (mm) Thickness(mm)
200 40 37
230 45 40
260 45 46
280 50 46
320 75 65
330 60 55
350 60 90
450 80 90


Engineering Block - Dawson Group Ltd. - China Supplier, Manufacturer, Factory

Industry solutions:

In the face of the traditional pulley sheave defects, Dawson design team decided to upgrade the sheave,the key component of determining the service life of the pulley. According to the international standard, and combining with China’s JB/T9007.2-1999 standard, successfully developed the”single plate of hot rolled steel wheel heavy multi wheel lifting pulley, has been used in the Three Gorges Project, Qingdao port more than 1000 large projects.


Technique Advantages:

1. Hot rolled steel roller skater is the replacement product of tradition cast iron and cast steel roller skater. To avoid the common slide cast iron wheel easily broken phenomenon, is our company design center independently developed the patented products, to fill the domestic gap.

2. The product has the advantages of high pressure, large load, short production cycle, beautiful appearance, durable, safe and reliable.

3. The pulley of this product is a hot-rolled steel wheel made by advanced International technology. It has reasonable structure, high load, high bearing pressure and reduced friction with wire rope.


Wind Power Block, Wind Power Special Lifting Cable Block with Shackle - Dawson Group Ltd. - China Factory, Manufacturer   Wind Power Block, Wind Power Special Lifting Cable Block with Shackle - Dawson Group Ltd. - China Factory, Manufacturer, Supplier

Technique advantages:

1. The shackle and lifting axis are forged by alloy steel and heat treated.

2. The rolling wheel is gorged by steel.

3. The side board with sides can prevent clamping rope.

4. Nylon composite bush and DS-JDB solid oily self-lubricating copper bush are available.

5. It can be opened, and escaped by rope when the lifting rod lifts the pulley.

6. Oil nipple for operating easily.

7. The rated fatigue strength is superior to the equal standard.


Industry solution:

The new energy-wind power generation has been greatly carried out at home and abroad. Wind power is an environmental and clean energy.Meanwhile, the hoisting solution of wind power designed by the Dawson block research center has been successively applied in the installation works at home and abroad.


Basic Parameters of Wind Power Special Lifting Cable Block

Item No. Wll (Kn) Applicable Steel Cable(mm) Specification
H D D1
DS-WPB3119-25T 245 31-36 1300 500 540
DS-WPB3120-35T 343 34-39 1380 510 545
DS-WPB3122-45T 441 39-40 1520 560 690
DS-WPB3124-55T 539 40-48 1600 600 630
DS-WPB3126-70T 686 48-52 1750 650 680
Item No. Load of sling Single-lifting lug load Wide-body shackle WPB Lug bolt and hole distance
DS-WPB3115-35T 50T 15T 35T 35T Made based on tower flange
DS-WPB3118-40T 60T 18T 35T 40T Made based on tower flange
DS-WPB3118-45T 65T 20T 35T 45T Made based on tower flange
DS-WPB3118-50T 70T 30T 50T 50T Made based on tower flange
DS-WPB3118-55T 80T 35T 50T 55T Made based on tower flange
DS-WPB3118-70T 100T 40T 60T 70T Made based on tower flange


Basic parameters of Type A marine block - Dawson Group Ltd. - China Supplier, Factory, Manufacturer   Basic parameters of Type A marine block - Dawson Group Ltd. - China Supplier, Factory


Technology advantages:

1. Reinforced plate and special sealing device:resistance to corrosion.Both sides of the middle shaft are installed with water-proofing sealing devices.

2. Alloy material:the ring and hook are made of high-quality 20Mn or 35CrMo.

3. Equipped with DS-JDB embedded solid oily copper alloy sliding bearing: greatly improve the impact force.

4. The bundled chain ring and clamp ring are forged by alloy steel, with bronze bushing.

5. The steel cable tortoise shell is made of steel casting. The pulley rotates flexibly with long cylindrical roller bearing.Thus,

 

Industry solution

As there are requirements for the resistant to corrosion and impact force, Dawson Block Design Center has innovated and adopted reinforced plates and special sealing device. Thus, impact force has been greatly strengthened and hoisting and pulling and pushing safety is greatly improved. A,B,C,D and ZHC marine blocks are available. The solution for hoisting and underwater hauling is provided for dozens of shipbuilding enterprises, including Qingdao Ship Yard, Shanghai Ship Yard and Yantai Raffles and so on.



Basic parameters of Type A marine block

Model WLL(KN) Applicable steel cable diameter(mm) Basic parameters(mm)
D B L H
DS-A1C(Y.Z) Type 10 13.5 175 210 88 430
20 15.5 200 250 102 566
32 19.5 250 310 120 680
40 21.5 285 350 134 740
50 26.0 335 410 151 872
63 28.0 365 455 172 965
80 32.5 420 520 194 1070
100 34.5 450 550 208 1176
DS-A1CS(Y.Z) Type 125 32.5 420 520 194 1274
160 34.5 450 550 208 1404
DS-A2C(Y.Z) Type 80 15.5 200 250 175 640
125 19.5 250 310 205 786
160 21.5 285 350 226 874
200 26.0 335 410 260 1015
DS-A2CS(Y.Z) Type 100 15.5 200 250 175 730
160 19.5 250 310 205 900
200 21.5 285 350 226 995
250 26.0 335 410 260 1160


Basic parameters of Type B marine block - Dawson Group Ltd. - China Supplier, Factory, Manufacturer   Basic parameters of Type B marine block - Dawson Group Ltd. - China Supplier, Factoryo

Basic parameters of Type B marine block

Model WLL(KN) Applicable steel cable diameter(mm) Basic parameters(mm)
D B L H
DS-BG1C(1Y) Type 32 19.5 250 310 134 675
50 26.0 335 410 146 866
80 32.5 420 510 170 1076
100 34.5 450 550 186 186
DS-BG1CS(1Y) Type 50 19.5 250 310 134 712
80 26.0 335 410 146 926
120 32.5 420 510 170 1130
160 34.5 450 550 186 1150
DS-BZ2C(2Y) Type 125 19.5 250 310 228 756
200 26.0 335 410 250 960
DS-BZ2CS(2Y) Type 160 19.5 250 310 228 790
250 26.0 335 410 250 995


Basic parameters of Type C marine steel cable block - Dawson Group Ltd. - China Supplier, Factory, Manufacturer   Basic parameters of Type C marine steel cable block - Dawson Group Ltd. - China Supplier, Factory

Basic parameters of Type C marine steel cable block

Model WLL(KN) Applicable steel cable diameter(mm) Basic parameters(mm)
D B L H
DS-C1C(G) Type 10 13.0 175 210 88 430
20 15.5 200 250 102 566
32 19.5 250 310 120 680
40 21.5 285 350 134 740
50 26.0 335 410 151 872
16 13.5 175 210 88 516
32 15.5 200 250 102 658
50 19.5 250 310 120 780
DS-C1CS(GS) Type 63 21.5 285 350 134 887
80 26.0 335 410 151 1042
DS-C2C(G) Type 40 13.5 175 210 105 568
80 15.5 200 250 130 685
125 19.5 250 310 150 851
160 21.5 285 350 166 960
200 26.0 335 410 188 1072
DS-C2CS(GS) Type 50 13.5 175 210 105 630
100 15.5 200 250 130 777
160 19.5 250 310 150 968
200 21.5 285 350 166 1081
250 26.0 335 410 188 1218


Basic parameters of Type D boat steel cable block - Dawson Group Ltd. - China Supplier, Factory, Manufacturer   Basic parameters of Type D boat steel cable block - Dawson Group Ltd. - China Supplier, Factory

Basic parameters of Type D boat steel cable block

Model WLL(KN) Applicable steel cable diameter(mm) Basic parameters(mm)
D B L H
DS-D3Type 125 15.5 200 250 188 546
200 19.5 250 310 208 673
250 21.5 285 350 238 744
300 26.0 335 410 264 866
400 28.0 365 455 290 970
500 32.5 420 520 308 1095
DS-D3SType 145 15.5 200 250 188 643.5
232 19.5 250 310 208 792
290 21.5 285 350 238 879
350 26.0 335 410 264 1018
463 28.0 365 455 290 1139
580 32.5 420 520 308 1277
DS-D4Type 250 19.5 250 310 264 663
320 21.5 285 350 302 750
400 26.0 335 410 335 900
630 28.0 365 455 368 1005
630 32.5 400 520 392 1131
800 34.5 450 550 423 1248
DS-D4SType 282 19.5 250 310 264 782
360 21.5 285 350 320 885
450 26.0 335 410 335 1052
563 28.0 365 455 368 1174
710 32.5 420 520 392 1313
900 34.5 450 550 425 1448


Basic parameters of Type ZHC single-sheave marine block - Dawson Group Ltd. - China Manufacturer, Supplier, Factory   Basic parameters of Type ZHC single-sheave marine block - Dawson Group Ltd. - China Manufacturer, Supplier

Basic parameters of Type ZHC single-sheave marine block

Model Rated load(KN) Applicable steel cable diameter(mm) A(mm) B(mm) C(mm) D(mm)
L Q N
DS-ZHC3.2-1L(Q.N) 31.36 15-17 590 565 536 274 122 260
DS-ZHC5-1L(Q.N) 49 20-22 733 711 675 330 160 300
DS-ZHC8-1L(Q.N) 78.4 22-24 885 858 800 385 165 355
DS-ZHC10-1L(Q.N) 98 24-26 1000 970 930 440 170 410
DS-ZHC16-1L(Q.N) 156.8 26-28 1142 1108 1061 490 210 460
DS-ZHC20-1L(Q.N) 196 28-30 1145 1110 1070 490 214 460


Basic parameters of Type ZHC multi-sheave marine block - Dawson Group Ltd. - China Manufacturer, Supplier, Factory   Basic parameters of Type ZHC multi-sheave marine block - Dawson Group Ltd. - China Manufacturer, Supplier

Basic parameters of Type ZHC multi-sheave marine block

Model Rated load(KN) Applicable steel cable diameter(mm) Basic parameters(mm)
A B C D
DS-125-ZHC550×7Q 1225 28-30
550 790 590
DS-125-ZHC550×7QS 1525
DS-125-ZHC600×7Q 1225 28-30
600 860 640
DS-125-ZHC600×7QS 1560
DS-140-ZHC550×7Q 1372 28-30
550 810 590
DS-140-ZHC550×7QS 1563
DS-100-ZHC550×7Q 980 28-30
550 700 590
DS-100-ZHC550×7QS 1448


SG Type multi-sheave double-hook marine block - Dawson Group Ltd. - China Manufacturer, Factory, Supplier   SG Type multi-sheave double-hook marine block - Dawson Group Ltd. - China Manufacturer, Factory

SG Type multi-sheave double-hook marine block

Model Rated load(KN) Applicable steel cable diameter(mm) Basic parameters(mm)
A B C D E
DS-32-ZHC460×4SG 313.6 26-28 1895 625 150 460 490
DS-40-ZHC500×4SG 392.0 26-28 2125 695 180 500 540
DS-32-ZHC550×4SG 313.6 28-30 2015 625 150 550 590
DS-40-ZHC550×4SG 392.0 28-30 2175 695 180 550 590
DS-63-ZHC550×4SG 617.4 28-30 1683 730 200 550 590


Tied groove opening block - Dawson Group Ltd. - China Manufacturer, Factory   Tied groove opening block - Dawson Group Ltd. - China Manufacturer, Factory, Supplier

Tied groove opening block

Rared load(KN) Applicable steel cable diameter(mm) Basic parameters(mm)
A B C D E F G
30 18-22 84 125 65 96 40 413 140
50 22-26 88 150 80 102 40 437 162


Basic parameters of mining block - Dawson Group Ltd. - China Supplier, Factory, Manufacturer   Basic parameters of mining block - Dawson Group Ltd. - China Supplier, Factory

Mining Block, Special Lifting Tackle

Technology advantages:

1. With the wire rope locating and anti-disengaging device, the wire rope will not fall from the groove and the guard plate and pulley will not be damaged.

2. Pressure bearing locating device:applicable to operation under all angles, the pulley edges and guard plates are not rubbed with each other.

3. Reinforced plate and thickened plate are adopted to prevent deformation.

4. Bolted retaining plate:make the tackle become stronger.


Industry Solution

Mining block is a special lifting tackle that is self-researched by our company for the coal mine industry, which has filled in the gap of Chinese tackle industry. As the operation environment of inside mine is severe and complex, horizontal drawing, non-linear pulling and pulling from different angles are required.Different from the traditional vertical hoisting, horizontal drawing or non-linear pulling is required for coal mine tackle. Therefore, Dawson Block Design Team has closely communicated with the clients by operation survey and has designed the mine tackle, which has filled in the industry gap.


Electricity Block - Dawson Group Ltd. - China Factory, Manufacturer, Supplier   Line tackle with small diameter - Dawson Group Ltd. - China Factory, Manufacturer, Supplier

Line tackle with small diameter

Model Applicable wire(LGJ) Rated load(KN) Outer diameter(mm) Block width(mm) Weight(Kg)
DS-EPB- ∅120 25-70 5 120 35 1.5
DS-EPB- ∅160 95-120 10 160 40 2.5
DS-EPB- ∅200 150-240 15 200 40 3.6
DS-EPB- ∅200 150-240 15 200 60 4.5
DS-EPB- ∅270 300-400 20 270 60 5.6
DS-EPB- ∅320 300-400 20 320 60 6.7
DS-EPB- ∅408 400-500 20 408 80 13.0

Application:the product is used to place the wire on the straight line pole. The pliers-connected pipe, wire rope connector and rotary connector pass through the groove.

Explanation: 1. There are hook-type tackle, hanging-panel-type, ring-type tackles. Thus, please specify the type. The special specification will be customized.

 

High- speed angle tackle - Dawson Group Ltd. - China Factory, Manufacturer, Supplier

High- speed angle tackle

Model Rated load(KN) Pulley outer diameter(mm) Pulley width(mm) Weight(Kg) Remarks
DS-EPB-5 50 ∅308 75 22 Steel pulley
DS-EPB-16 160 ∅600 92 15 Steel pulley
DS-EPB-30 300 ∅916 110 200 Steel pulley

Application: to pull the wire rope angle during paying off. It can pass through the wire rope is 80m/min.


Electric block with roller bearing and steel sheave - Dawson Group Ltd. - China Factory, Manufacturer, Supplier

Electric block with roller bearing and steel sheave

Model Number of pulleys Rated load(KN) Applicable wire rope(mm) Weight(Kg)
DS-EPB1×1 1 10 ∅7.7 3.0
DS-EPB1×2 2 10 ∅5.7 3.0
DS-EPB1×3 3 10 ∅5.7 4.3
DS-EPB2×1 1 20 ∅11.0 4.7
DS-EPB2×2 2 20 ∅7.7 5.3
DS-EPB2×3 3 20 ∅7.7 7.2
DS-EPB3×1 1 30 ∅12.5 6.5
DS-EPB3×2 2 30 ∅11.0 7.8
DS-EPB3×3 3 30 ∅7.7 10.5
DS-EPB5×1 1 50 ∅15.5 9.0
DS-EPB5×2 2 50 ∅12.5 10.8
DS-EPB5×3 3 50 ∅11.0 13.8
DS-EPB8×1 1 80 ∅18.5 14.4
DS-EPB8×2 2 80 ∅15.5 19.0
DS-EPB8×3 3 80 ∅12.5 19.8
DS-EPB10×1 1 100 ∅20.0 21.0
DS-EPB10×2 2 100 ∅15.5 24.0
DS-EPB10×3 3 100 ∅15.5 24.8

Application: applicable to assembling the pole and tower, wire stringing, hoisting equipment and other overweight operation during electric line construction.

Remarks: specify the required opening, closing, hook type and ring type during ordering.


Oilfield Block - Dawson Group Ltd. - China Supplier, Factory, Manufacturer

Oilfield Block

Model Working load(TON) Sheave diameter(mm) Applicable wire rope(mm) Weight(KG)
DS-OHB418-4T 4 202 9.5-12.7 16
DS-OHB4110-8T 8 254 12.7-14.3 25
DS-OHB4114-12T 12 355 16 43
DS-OHB4116-15T 15 406 25.4 68
DS-OHB4118-20T 20 457 25.4-28.5 86

Technology advantages:

1. The lifting bracket, sing ring and shake are made of alloy steel, forged and heat treated.

2. Hot rolled steel pulley, and the pulley groove bottom is quenched to increase the wearing coefficient and lengthen the service life.

3. Assembled with DS-JDB oily copper bushing or long cylindrical roller bearing.

4. The through-hole on the side plate is used to fix the tackle.


Oilfield drilling block - Dawson Group Ltd. - China Supplier, Factory, Manufacturer

Oilfield drilling block

Model Working load (TON) Sheave diameter(mm) Number of rounds Applicable wire rope(mm) Weight(KG)
DS1-150 150 750 4 28.5 2900
DS1-250 250 900 5 28.5 4700
DS1-350 350 1050 5 28.5 5000


Oilfield drilling block - Dawson Group Ltd. - China Supplier, Factory

Model Working load (TON) Sheave diameter(mm) Number of rounds Applicable wire rope(mm) Weight(KG)
DS2-250 250 750 4 28.5 2500
DS2-350 350 1050 5 31.7 3200
DS2-500 500 1350 5 35 7200
DS2-750 750 1350 6 38 9000

Technique Advantages:

1. The pulley is hot rolled with Q345B steel plate and the wheel groove is quenched with flame.

2. The slot matched with the wire rope effectively extends the service life of both.

3. The long cylindrical roller bearings are assembled in the hub to design their respective lubricating oil ducts.

4. The lifting device is treated with 35 CrMO alloy steel, which ensures the payload safety.

5. The crane assembly thrust bearings, more flexible and convenient when working.

6. By increasing the weight to increase the speed, eliminate the vibration, more stable operation.

7. The slide surface is painted, and also anti rust treatment.



Oilfield Pipe Block - Dawson Group Ltd. - China Supplier, Manufacturer, Factory

Oilfield Pipe Block

Model Working load(TON) Sheave diameter(mm) Applicable wire rope(mm) Weight(KG)
DS3-1-75 75 500 22 850
DS3-2-75 75 500 22 880
DS3-1-100 100 600 25 1250
DS3-2-100 100 600 25 1300
DS3-1-140 140 760 28 1900
DS3-2-140 140 760 28 2200


Oilfield Pipe Block - Dawson Group Ltd. - China Supplier, Manufacturer

Model Working load(TON) Sheave diameter(mm) Applicable wire rope(mm) Weight(KG)
DS4-50 50 430 22 480
DS4-75 75 500 25 720
DS4-100 100 610 25 990
DS4-150 150 760 28.5 1200

Technique Advantages:

1. The pulley is hot rolled with Q345B steel plate and the wheel groove is quenched with flame.

2. The slot matched with the wire rope effectively extends the service life of both.

3. The long cylindrical roller bearings are assembled in the hub to design their respective lubricating oil ducts.

4. The lifting device is treated with 35 CrMO alloy steel, which ensures the payload safety.

5. The crane assembly thrust bearings, more flexible and convenient when working.

6. By increasing the weight to increase the speed, eliminate the vibration, more stable operation.

7. The slide surface is painted, and also anti rust treatment.


Custom Block - Dawson Group Ltd. - China Factory, Manufacturer   Custom Block - Dawson Group Ltd. - China Factory, Manufacturer, Supplier

Custom Block

Lifting load(TON) Applicable wire rope (mm) Pulley diameter(mm) Weight(KG)
10 15-17 254 162
20 25-26 380 216
30 28-29 418 279
40 32-35 645 380

Technique Advantages:

1. The guard plates on both sides are equipped with balancing weight to make the massive structure firmer.

2. The pulley is made of Q345B plate and the pulley groove bottom is quenched.

3. The hook or shackle is made of high-alloy steel and quenched-tempered heat treatment.

4. The hub is equipped with DS-JDB oily copper alloy or long cylindrical roller bearing.

5. The hook is equipped with safety closed pin.



Shackle Type Marine Block - Dawson Group Ltd. - China Factory, Manufacturer, Supplier

Shackle-type marine block

Work load(TON) Pulley diameter(mm) Wire rope diameter(mm) Weight(KG)
30 24-26 400 120
30 35-38 500 125
60 36-40 600 220
60 50-52 620 225

Technology Advantages:

1. The key technical indicators meet EU standard:13157

2. High-alloy steel forging and heat treatment process.

3. Pulley is made of hot rolled steel pulley and MC nylon pulley and is applicable to -20°operation.

4. MC nylon pulley can lengthen the service life of wire rope for more than 5 times.

5. The rolled steel pulley is equipped with DS-JDB solid oily self-lubricating copper bushing.

6. After anti-septic treatment, the tackle surface is sprayed with coating.


Hot Rolled Steel Sheave - Dawson Group Ltd. - China Supplier, Factory, Manufacturer   Hot Rolled Steel Sheave - Dawson Group Ltd. - China Supplier, Factory
Hot Rolled Steel Sheave - Dawson Group Ltd. - China Manufacturer, Factory, Supplier


Industry solution

Our technology research center has researched the key part of tackle”pulley” in order to solve the disadvantages of traditional cast iron and cast steel pulley. Through repeated test, large multi-pulley singing tackle with”single-plate” hot rolled steel sheave” has been successively produced. The tackle has been applied to large projects, such as the Three Gorges, Qingdao Port, Raffles drilling platform borehole.


Basic parameter of hot rolled steel pulley

Item D(mm) B(mm) Extreme tolerances Applicable wire rope diameter(mm) DS-JDB embedded solid oily copper alloy shaft bush ∅(mm) Long cylindrical roller bearing model (D2)
Hot rolled steel Sheave 300-390 50-60 +2.0 14-15.5 50-60 42212
390-435 60-65 +2.5 15.5-17 60-70 42213
435-490 65-70 +3.0 17-20 70-75 42214
490-560 75-80 +3.5 20-24.5 75-80 42215
560-760 80-90 +4.0 24.5-30 80-85 42216
760-820 90-100 +4.5 30-37 85-90 42217
820-1000 100-120 +5.0 37-52 90-100 42218
1000-1200 105-130 +5.5 52-60 100-110 Customized according to customer requirements
1200-1400 110-140 +6.0 60-65 110-120 Customized according to customer requirements
1400-1600 120-150 +6.5 65-70 120-130 Customized according to customer requirements

Technology advantages:

Compared with the general cast iron sheave, the hot rolled steel sheave could not be broken. It replaces the traditional cast iron and cast steel sheaves, which has filled in the domestic gap. The hot rolled steel sheave is available from ∅150-1800MM, and the international advanced technology is adopted. Its advantages are:

1. It is highly resistant to tension and impact force.

2. It is resistant to wear and has large bearing load. The service life is more than 5 times of the iron pulley.

3. The pulley groove is quenched, the friction coefficient with the wire rope is small, so the service life of the wire rope is lengthened.


Quench hardening technology:

With the technology, the sheave groove is quenched and hardened. The maximum hardness is provided on the touch surface of the wire rope to resist the resistance. 140° touch area is generated with the wire rope. The steel plate surface is very applicable to quenched hardening to reduce the tolerance and fatigue and wear.


Welcome to buy the newest and competitive price DAWSON DAWSON Heavy Duty Snatch Block, Lifting Pulley Blocks, Wire Rope Pulley from our factory. We're one of the leading China manufacturers and suppliers, offering you the wholesale service and the OEM service at a discount. With CE certification, our products made in China in stock are high in quality and low in price. Please be free to get the free sample from us.

 

For further information, please contact us. Email:info@dawson-group.com

 

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Products Show:

Heavy Duty Snatch Block - Dawson Group Ltd. - China Supplier, Factory, Manufacturer
DS-HY(GDL) Series General Block - Dawson Group Ltd. - China Factory, Manufacturer, Supplier
DS-JDB Bronze Bearing Block - Dawson Group Ltd. - China Factory, Manufacturer
DS-JDB Bronze Bearing Block - Dawson Group Ltd. - China Factory, Manufacturer, Supplier

DS-MC Nylon Sheave Series Hoisting Block - Dawson Group Ltd. - China Manufacturer, Supplier

Engineering Block - Dawson Group Ltd. - China Manufacturer, Factory, Supplier

Wind Power Block, Wind Power Special Lifting Cable Block with Shackle - Dawson Group Ltd. - China Supplier, Factory

Marine Block - Dawson Group Ltd. - China Supplier, Factory, Manufacturer

Mining Block - Dawson Group Ltd. - China Factory, Manufacturer

Electricity Block - Dawson Group Ltd. - China Factory, Manufacturer, Supplier

Oilfield Block - Dawson Group Ltd. - China Supplier, Manufacturer, Factory

Custom Block - Dawson Group Ltd. - China Supplier, Factory, Manufacturer


DAWSON Quality Management System:

DAWSON Quality Management System - Dawson Group Ltd. - China Manufacturer, Supplier, Factory

DAWSON Forging:

Dawson Forging - Dawson Group Ltd. - China Manufacturer, Supplier, Factory
Dawson Forging - Dawson Group Ltd. - China Manufacturer, Supplier

Heavy Duty Snatch Block Catalogue Download:

Heavy Duty Snatch Block - Dawson Group Ltd. - China Manufacturer, Supplier, Factory

Application of Snatch Block:

Application of DS-HY(GDL) Series General Block - Dawson Group Ltd. - China Factory, Manufacturer, Supplier

DS-JDB Bronze Bearing Block, Mosaic Solid Lubrication Bearing Lifting Tackle, Embedded Solid Oil Bearing Lubricating Bearing - Dawson Group Ltd. - China Manufacturer, Supplier, Factory

DS-MC Nylon Sheave Series Hoisting Block - Dawson Group Ltd. - China Manufacturer, Supplier, Factory

Engineering Block - Dawson Group Ltd. - China Supplier, Manufacturer, Factory

Engineering Block, Large Scale Hot Rolled Steel Wheel Pulley Block - Dawson Group Ltd. - China Manufacturer, Supplier

Application of Wind Power Block, Wind Power Special Lifting Cable Block with Shackle - Dawson Group Ltd. - China Supplier, Factory, Manufacturer

Application of Marine Block, Marine Tackle - Dawson Group Ltd. - China Manufacturer, Supplier, Factory

Mining Block - Dawson Group Ltd. - China Factory, Manufacturer, Supplier

Application of Hot Rolled Steel Sheave - Dawson Group Ltd. - China Factory, Manufacturer, Supplier

Factory & Package Show: 

Factory of DAWSON Heavy Duty Snatch Block, Lifting Pulley Blocks, Wire Rope Pulley - Dawson Group Ltd. - China Manufacturer, Supplier, Factory
Package of DAWSON Heavy Duty Snatch Block, Lifting Pulley Blocks, Wire Rope Pulley - Dawson Group Ltd. - China Manufacturer, Supplier, Factory

 

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