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

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

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

   

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 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 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 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, Multi-Wheel Blocks

   
   

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	5-7	85	40×40×17	20
	DS-HYG(L)K1-1	1	7-11	105	37×37×14	10
	DS-HYG(L)K1-2	2	11-14	135	40×40×17	6
	DS-HYG(L)K1-3.2	3.2	12.5-15.5	160	45×24×16	3
	DS-HYG(L)K1-5	5	15.5-18.5	202	55×32×12	2
	DS-HYG(L)K1-8	8	20-23	260	Plastic blister packaging	1
	DS-HYG(L)K1-10	10	23-24.5	280	Plastic blister packaging	1
	DS-HYG(L)K1-16	16	28-31	345	Plastic blister packaging	1
	DS-HYG(L)K1-20	20	31-35	390	Plastic blister packaging	1
	DS-HY(HQ)G(L)K1-32	32	35-38	490	Plastic blister packaging	1
	DS-HY(HQ)G(L)K1-50	50	40-43	560	Plastic blister packaging	1

DS-HY、DS-HQ Series Muti-Wheel Block

   

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)2-1	1	5-7	85	37×37×14	10
	DS-HYG(D)2-2	2	7-11	106	40×40×17	8
	DS-HYG(D)2-3.2	3.2	11-14	135	45×24×16	4
	DS-HYG(D)2-5	5	12.5-15.5	160	45×24×16	4
	DS-HYG(D)2-8	8	15.5-18.5	202	Plastic blister packaging	1
	DS-HYG(D)2-10	10	17-20	230		1
	DS-HYG(D)2-16	16	23-24.5	300		1
	DS-HYG(D)2-20	20	26-28	345		1
	DS-HQD2-32	32	31-35	390		1
Three-sheave (swinging ring) block	DS-HYG(D)3-3.2	3.2	7.7-11	105	45×24×16	4
	DS-HYG(D)3-5	5	11-14	135	45×24×16	2
	DS-HYG(D)3-8	8	12.5-15.5	160	Plastic blister packaging	1
	DS-HYG(D)3-10	10	15.5-18.5	202		1
	DS-HYG(D)3-16	16	17-20	230		1
	DS-HYG(D)3-20	20	20-23	260		1
	DS-HQD3-32	32	26-28	345		1
	DS-HQD3-50	50	31-35	435		1
Four-sheave (swinging ring) block	DS-HYD4-8	8	11-14	135	Plastic blister packaging	1
	DS-HYD4-10	10	12.5-15.5	160		1
	DS-HYD4-16	16	15.5-18.5	202		1
	DS-HYD4-20	20	17-20	230		1
	DS-HQD4-32	32	23-24.5	300		1
	DS-HQD4-50	50	28-31	390		1
Five-sheave (swinging ring) block	DS-HYD5-20	20	15.5-18.5	202	Plastic blister packaging	1
	DS-HQD5-32	32	20-23	260		1
	DS-HQD5-50	50	26-28	345		1
	DS-HQD5-80	80	31-35	435		1
Six-sheave (swinging ring) block	DS-HQD6-32	32	17-20	230	Plastic blister packaging	1
	DS-HQD6-50	50	23-24.5	300		1
	DS-HQD6-80	80	26-28	390		1
	DS-HQD6-100	100	31-35	435		1
Eight-sheave (swinging ring) block	DS-HQD8-80	80	26-28	345	Plastic blister packaging	1
	DS-HQD8-100	100	28-31	390		1
	DS-HQD8-160	160	31-35	435		1
	DS-HQD8-200	200	34-38	490		1
Ten-sheave (swinging ring) block	DS-HQD10-200	200	31-35	435	Plastic blister packaging	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, DS-JDB Embedded Solid Oil Bearing Lubricating Bearing, DS-JDB Series Mosaic Solid Lubrication Bearing Lifting Tackle Used for Hoisting Equipment Matching in Industrial, Mining, Infrastructure, Port and Wharf

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, Nylon Block, Lifting Pulley, Pulley Block

   

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

DS-EB Engineering Block, Large Scale Hot Rolled Steel Wheel Pulley Block, Hot Rolled Steel Roller Skater, Hot-Rolled Steel Sheave Block

   

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.

DS-WPB Wind Power Block, Wind Power Special Lifting Cable Block with Shackle 

   

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(mm)
			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

Marine Block, Marine Steel Cable Block, Boat Steel Cable Block, Single Sheave Marine Block, Multi-Seave Marine Block, Double Hook Marine Block, Tied Groove Opening Block

   

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

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

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

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
	500	28.0	365	455	368	1005
	630	32.5	400	520	392	1131
	800	34.5	450	550	425	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

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

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	26-28		550	700	590
DS-100-ZHC550×7QS			1448

    

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

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

Mining Block, Special Lifting Tackle

   

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.

Item	Model	WLL(KN)	Wire rope diameter(mm)	D(mm)	H(mm)	B(mm)	L(mm)
Mine tackle	DS-HY(HQ)G(D)1-10	100	23-24.5	280	750	316	110
	DS-HY(HQ)G(D)1-16	160	28-31	345	905	365	145
	DS-HY(HQ)G(D)1-20	200	31-35	390	1065	410	152
	DS-HY(HQ)G(D)1-32	320	34-38	490	1280	520	209

Electricity Block, Electric Block with Roller Bearing and Steel Sheave

   

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

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	150	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

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, Oilfield Drilling Block, Oilfield Pipe Block, Traveling Block, Lifting Tackle

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

It is forbidden to use the heavy weights next to the station.

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

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

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, Shackle Type Marine Block, Lifting Tackle

   

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

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, Hot Rolled Steel Pulley Block

   

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 Φ(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.

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.

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

 

Hot Tags: heavy duty snatch block,heavy duty pulley blocks,lifting pulley block, wire rope pulley blocks,general block,nylon block,bronze bearing block,hot-rolled steel sheave block,wire rope pulley,buy discount wind power block,marine block in stock,competitive price electricity block,hot sale oilfield block

Products Show:

Other related products:

DAWSON Quality Management System:

DAWSON Forging:

Heavy Duty Snatch Block Catalogue Download: