Lifting gear of tower crane --Speed Reducer Series--Products--Yantai Yucheng Engineering CO.Ltd.

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※ Lifting gear of tower crane

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Introduction：

I Performance
QTQJ lifting gear can be used as lifting and rolling device of different tower crane, as well as rolling device of other equipment. This windlass is made with advanced design, reasonable structure, strict technique with advanced quality system. This structure has stable drive, high precision, low noise, great starting torque, wide timing range, reliable drive, high security and energy-saving performance. QTQJ lifting structure is best choice for manufacturers producing cranes.

II Technical Parameter

Model		QTQJ20		QTQJ31.5			QTQJ40			QTQJ63
Item		ⅠGrade	ⅡGrade	ⅠGrade	ⅡGrade	Ⅲ Grade	ⅠGrade	ⅡGrade	Ⅲ Grade	ⅠGrade	ⅡGrade	Ⅲ Grade
Motor	Model	YD160L-4/8		YZTD200L-4/6/24			YZTD225M-4/8/32			YZTD250M2-4/8/32
	Rotate Speed r/min	1450	720	1400	930	180	1400	700	140	1440	700	140
	Power Kw	11	7	13	13	3.2	15	15	4	24	24	5.4
Speed Reducer	Model	JZQ350-Ⅳ-4		JZQ400-Ⅷ-8			JZQ500-Ⅷ-8			JZQ500-Ⅶ-4
	Speed Radio	23.34		10.35			10.35			12.64
Drum	Cope Capacity m	150		280			300			350
	Rotate Speed r/min	62.1	30.8	135	89.6	17.4	135	67.6	13.5	114	55.4	11.1
	mm Diameter	240		240			275			320
Detent Model		YWZ-200/25		YWZ-300/45			YWZ-300/45			YWZ3-315/45
Rating lifting weight		1	2	1	2	3	2	3	4	2	4	6
Stopper Model		DXZ-4/6		DXZ-4/7			DXZ-4/7			DXZ-4/7

III Overall Dimension of lifting structure

Model	A	B	C	D	E	F	G	M	N
QTQJ20	891	1176	200	310	569	ф240	998	710	670
QTQJ31.5	900	1360	250	360	712	ф240	1052	820	780
QTQJ40	900	1526	300	430	782	ф275	1427	980	934
QTQJ63	1000	1600	300	430	815	ф320	1455	109	993

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