Tower Crane QTZ315

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, QTZ315 (TC7040)

1. Brief Introduction of the Hammerhead Tower Crane
The performance of the hoisting, slewing, and trolleying mechanisms directly affect the performance of the QTZ315 hammerhead tower crane. That's why we take great care in making sure each part is reliable, safe, and top quality thanks to our advanced technology.

Hoisting mechanism
The hoisting mechanism of this hammerhead tower crane is designed to lift 16-18 tons, using a frequency altering and regulated stepless speed motor. Starting and braking smoothly, it greatly improves the machine's stability and accuracy, simplifies the operation, and prolong the lifetime of the electric system and wire rope. A strong drum with a LEBUS groove keeps the wire rope neatly arranged for easy maintenance.

Slewing mechanism
We use the unique technology of frequency altering and regulated stepless speed for the slewing mechanism of the construction cranes, allowing them to start and stop smoothly.

Trolleying mechanism
Using frequency altering and regulated stepless speed, the speed of the trolley changes between 0-100m/min, efficiently reducing the running impact and improving operating stability.

2. Loading Chart of the Hammerhead Tower Crane

Jib (m)	3.2 ~ 16.8	18	20	22	23	24	25	26
4 falls (kg)	18000	16690	15107	14350	13659	13025	12442	11904
2 falls (kg)	9000	9000	9000	9000	9000	9000	9000	9000
Jib (m)	27	28	29	30	31	32	33	34
4 falls (kg)	11405	10942	10512	10109	9733	9381	9049	8737
2 falls (kg)	9000	9000	9000	9000	9000	9000	9000	8900
Jib (m)	35	36	37	38	38.4	39	40	41
4 falls (kg)	8443	8166	7903	7654	7600	7418	7194	6981
2 falls (kg)	8860	8620	8520	8100	8000	7964	7741	7530
Jib (m)	42	43	44	45	46	47	48	49
4 falls (kg)	6778	6584	6399	6222	6053	5891	5736	5588
2 falls (kg)	7328	7136	6953	6778	6610	6450	6296	6149
Jib (m)	50	51	52	53	54	55	56	57
4 falls (kg)	5445	5308	5176	5049	4926	4809	4695	4586
2 falls (kg)	6007	5871	5740	5614	5493	5376	5264	5155
Jib (m)	58	59	60	61	62	63	64	65
4 falls (kg)	4480	4377	4279	4183	4091	4001	3914	3830
2 falls (kg)	5050	4949	4851	4756	4664	4576	4490	4406
Jib (m)	66	67	68	69	70
4 falls (kg)	3749	3669	3593	3518	3446
2 falls (kg)	4325	4247	4171	4097	4025

3. Main Parameters of the Hammerhead Tower Crane

Hoisting mechanism	Model			70RCS40
	Model of motor			YRTE 3 -180L-4B 5
	Power		KW	51.5×2
	Hoisting speed	2 falls/load	m/min	60/4	30/8
		4 falls/load		30/8	15/16
Slewing mechanism	Model			RCV185B
	Model of motor			YTLEJ132L-185-4B 1
	Torque of motor		N.m	185 × 2
	Slewing speed		r/min	0 ~ 0.7
Trolleying mechanism	Model			X185K
	Model of motor			YTLEJ132L-185-4B 1
	Trolleying speed		m/min	40/20/10
Jacking speed			m/min	0.4
Outsize of whole crane	Tip of hoisting jib to slewing center			71.72
	Tip of balanced jib to slewing center			19.2
Balanced weight			t	29
Allowed work temperature			℃	-20 ~ 40
Basic wind pressure under work			Pa	250
Basic wind pressure out of work			Pa	1100
Power supply			50Hz	~ 380V±10%

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