Double Rope Clamshell Grab

Double Rope Clamshell Grab is equipped for crane, which has two ropes connecting to the grab. The kind of grab is simple structure, convenient operation, which is a kind of efficient tool for loading and unloading granular, small-block bulk cargo, such as coal, sand, mineral powder and bulk chemical fertilizer, and which is suitable to the working site such as port, mine and yard. The lifting capacity of crane is normally below 16t.

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Description Parameter Application Inquiry

Description

Parameter

Type and Size	m³ Volume	t Dead Weight	(mm) Dimensions					(mm) Sheave Dia.	（m） Use Height	(mm) Steel Rope Dia.	t SWL
Type and Size	m³ Volume	t Dead Weight	A	B	C	D	E	(mm) Sheave Dia.	（m） Use Height	(mm) Steel Rope Dia.	t SWL
BS3[1.2]1.3A	1.2(30⁰)	1.4(4)	1900	2537	2488	2841	1200	Æ400	9	Æ17.5	3
BS3[1.6]1.4A	1.6(30⁰)	1.4(4)	2100	2631	2559	3040	1300	Æ400	9.5	Æ17.5	3
BS5[1.5]2A	1.5(35⁰)	2(3)	2000	2659	2667	3075	1260	Æ445	8.5	Æ19.5	5
BS5[1.5]2A	1.5(35⁰)	2(4)	2000	2659	2667	3075	1260	Æ445	9.8	Æ19.5	5
BS5[2]2A	2(35⁰)	2(4)	2100	2778	2818	3248	1400	Æ445	10	Æ19.5	5
BS5[2.5]2A	2.5(35⁰)	2(3)	2100	2787	2715	3091	1600	Æ445	8.5	Æ19.5	5
BS5[3]2A	3(40⁰)	2(3)	2300	3130	2938	3362	1650	Æ445	9	Æ19.5	5
BS8[2.6]3.2A	2.6(30⁰)	2.6(4)	2300	3038	3257	3736	1800	Æ560	11	Æ26	8
BS8[3]3.3A	3(30⁰)	3.3(4)	2380	3118	3287	3786	1900	Æ560	11.5	Æ26	8
BS8[3.8]3.5A	3.8(30⁰)	3.5(4)	2550	3536	3286	3733	2000	Æ560	12	Æ26	8
BS8[4.5]3.8A	4.5(30⁰)	3.8(3)	2500	3505	3503	3975	2300	Æ560	12	Æ26	8
BS10[3]4A	3(30⁰)	4(4)	2380	3118	3287	3786	1900	Æ560	11.5	Æ28	10
BS10[5]4A	5(35⁰)	4(4)	2615	3605	3503	3975	2400	Æ560	12	Æ28	10
BS10[6]4A	6(40⁰)	4(4)	2800	3814	3758	4290	2150	Æ560	12.5	Æ28	10
BS16[3.6]6A	3.6(30⁰)	6(5)	2500	3313	3810	4206	2100	Æ720	13.5	Æ32	16
BS16[4]6A	4(35⁰)	6(5)	2500	3313	3810	4206	2200	Æ720	13.5	Æ32	16
BS16[6]6A	6(35⁰)	6(4)	2900	3800	4249	4612	2400	Æ720	13.5	Æ32	16
BS16[10]6A	10(40⁰)	6 (3)	3200	4000	3938	4673	2500	Æ650	12	Æ28	16

Note: 1.As the products have been improved, we will not advice another.

2.We can design and produce the grab according to user’s demand.

Application

Remote Control grab is an efficient tool for loading and unloading bulk cargo. The grab can close by lifting up hook of crane and open by remote control in the air without any additional power. The hydraulic and electric parts use the plug-in modular design, easily maintain and repair, suitable for ship ocean voyages. The Electric system and hydraulic system is water proof design, which can prevent washing of the wave and rain. Each bulk grab is test strictly by immersed under the water 24hours. Multistep buffering opens type, which reduce the impact to the grab from the crane and ensure to unload quickly. The grab can work continuous for 24 hours with low trouble rate. Grab uses less energy, a full battery can keep the use of more than 80 hours. Easy operation, the crane does not need any other auxiliary equipment. The grab can service after being put on the hook. Now the grabs are widely used in bulk vessels, ports, and are exported in batches.
Motor-Hydraulic Bulk Grab has hydraulic power and control system itself, and the hydraulic power system is imported from Europe and USA. The grab uses constant output pump and servo system. The flow of pump can change by itself according to working pressure. When the pressure reaches the max pressure, the flow is almost zero, so it can reduce the overflow, and reduce the temperature rise of oil. The cable rollers are improved designing, the temperature rise of rotating parts will be not higher than 35℃ when it is on full load working, which can ensure the grab can work continually.
Touch-down grab is a single rope grab, it must be put on the ground, cargo or hopper when you open it. After the crane lifts up, the grab will open by itself. The grab has buffers, which can reduce the impact when it opens. The opening and closing system is simple, so it has low fault rate.
When you want to open the Hand-pull grab, you need to pull the towing string, then the grab can open in air. The grab has buffers, which can reduce the impact when it opens. You can pull the towing string in 1800 angle, and the string won’t touch holding steel ropes.