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1.CE ISO9001, 2.All accessories are adopted from home famous brands and electricial components from international famous brands - details see: https://www.machineto.com/big-tower-crane-qtz300-7031-12t-made-in-china-ce-ccc-iso9001-certification-approved-10102019

Brief Introduction:

Shandong Hongda Construction Machine Co., Ltd. located in the beautiful city of Laiyang in Shandong Province, China, is not only one of the largest industrial enterprise groups of China but also one of the key enterprises in Chinese construction machinery industry. Hongda is a professional manufacturer of construction machinery for 29 years. Founded in 1984, we have 12 subsidiary companies. Our total assets amount to about RMB 1.08 billion (US$160 million). Our annual sales income exceeds RMB 1.3 billion (US$ 190 million). We have more than 3,800 employees. Our company covers a gross area of more than 800,000m² and a total floor area of about 460,000m².

Main Techinical Parameters of Hongda Tower Crane QTZ300(7031):

Model Parameters		QTZ300(7031)
Tip load(T)		3.1
Max .Radius(M)		70
Independent Height(M)		50
Max. Lifting Capacity(T)		12
Max. Height(M)		221
Wall-attached Frame		8
Main Material		1402×16 square steel tube
Standard Mast Section Dimension		2.083x2.083x3
Hoisting Speed(m/min)		0-102
Mini. Stabilizing Falling Speed (m/min)		2
Slewing Speed(r/min)		0-0.7
Traveling Speed(m/min)		0-80
Climbing Speed(m/min)		0.46
Motor Total Power(KW)		117.5
Complete Machine Total Weight	Independent Structure Weight(KG)	80900
	Counter Weight(T)	27.75

Picture Show:

Advanced Technology

The Detailed Drawing

The Construction Site

Tie Li Shi (Iron Giant)Brand, Famous Trademark of China

TLS-brand (Iron Giant) QTZ Tower Cranes Famous Brand of China

Certification: CE, CCC, ISO9001;

Models: QTZ31.5-QTZ500;

Lifting Torque: 315KNm-5000KNm;

Max Load: 3T-25T;

Working Radius: 38m - 80m;