Industrial Tower Heavy-Duty Crane for Construction and Lifting

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 2 Years
• Model NO.: PT
• Certification: GS, RoHS, CE, ISO9001
• Condition: New
• Maximum Lifting Height: 50-100m
• Maximum Lifting Weight: >10t
• Installation: Assembled
• Moving Type: Fixed
• Type: Top-Slewing Crane
• Mobile or Fixed: Fixed
• Rotation Method: up Rotation
• Color: Customizable
• Independent Height: 50m
• Transport Package: Container
• Trademark: Mingdao
• Origin: Shandong, China
• HS Code: 84260000
• Production Capacity: 100sets/Year

Product Description

Product Description

 

Introducing the China CE High Quality 3 Ton Qtz31.5(4208) Tower Crane, a pinnacle of engineering excellence, designed for robust performance in construction and heavy lifting scenarios.
 

Equipment Features
The boom of a tower crane can be divided into two types: horizontal and lever. When the boom is horizontal, the load trolley moves along the horizontal boom to change the amplitude, and the amplitude change movement is balanced. The boom is longer, but the boom has a larger deadweight. When the boom is lever, the luffing mechanism pulls the boom to change the amplitude. The amplitude change movement is not as stable as the horizontal type, but its deadweight is smaller.
The lifting capacity of a tower crane varies with the amplitude. The product of the lifting capacity and the amplitude is called the load moment, which is the main technical parameter of this crane. Through the slewing mechanism and slewing bearing, the tower crane has a large lifting height and a large inertial mass for slewing and walking, so it needs to have good speed regulation performance, especially the lifting mechanism is required to be fast with light load, slow with heavy load, and micro-movement when installed. In general, in addition to using resistor speed regulation, eddy current brakes, frequency modulation, pole changing, thyristor and electromechanical combination are often used for speed regulation.
Safety distance
When arranging the tower crane, a plan should be drawn, especially in real estate development areas, where there are many residential buildings and tower cranes, and the safety distance between adjacent tower cranes should be considered. The safety distance of no less than 2m should be guaranteed in both horizontal and vertical directions. The tower bodies and lifting arms of adjacent tower cranes should not interfere with each other, and the tower cranes should be able to rotate freely when the wind is too strong. The safety distance between the rear arm of the tower crane and the adjacent buildings should be no less than 50cm. The safety distance between the tower crane and the transmission line meets the requirements.
If the safety distance between the tower crane and the transmission line does not meet the specified requirements, a protective frame should be installed on the tower. In principle, the protection frame should be erected when the power is off, and metal materials should not be used. Bamboo poles and other materials can be used. The distance between the bamboo pole and the transmission line should not be less than 1m, and it should have a certain stability to prevent it from being blown down by strong winds.

Brief Introduction
The QTZ 31.5 series is a high-quality, self-raising electric tower crane engineered for peak performance and efficiency. Rated Lifting Moment: A powerful 315 kN·m ensures optimal lifting capabilities. Rated Loading Capacity: With a formidable capacity of 0.8 tons, it's built for versatility and strength. Max. Lifting Load: Able to handle impressive loads of up to 3 tons, making it ideal for various demanding tasks. Performance: This crane offers excellent and reliable performance, standing as a testament to superior engineering. Mast Section: Expertly crafted with dimensions of 1.5m x 1.5m x 2.2m for optimal stability and strength. Application: Designed to meet a wide array of demands, offering unparalleled flexibility in application.

Safety Features
Comprehensive safety protection equipment includes:weight limit,moment limit, height limit, slewing limit, emergency brakeand labor protective devices such as a rest platform and guardrail.
1. Weight limit: Provides a sharp warning when materials exceed capacity, protecting the crane.
2. Moment limiter: Offers real-time monitoring and detection of crane conditions, with diagnostics, rapid alerts, and safety controls.
3. Height Limit:Accurately controls the highest and lowest extreme positions of the lifting hook,
4. Slewing Limit: Manages the maximum number of turns left and right,
5. Emergency Brake: Activates in emergencies to safeguard valuable assets and personnel.

Advantages of Tower Crane
1. Features a robot automatic welding system for precision engineering.
2. Benefits from an automatic impeller blasting and spraying assembly line for superior finish.
3. Incorporates a CNC plasma cutting machine for accurate cutting and detail work.
4. Utilizes precision machine tools for exact engineering.
5. Includes France Schneider contactor for reliable connectivity.
6. Powered by Jiangte motor for robust and dependable operations.
7. Comes equipped with a complete set of safety devices for comprehensive protection.

Control Mechanism
The hoisting mechanism is driven by a three-speed electromotor, offering high speed, good speed-adjusting capacity, and efficiency. The derrick mechanism uses a worm-wheel reducer to meet operational needs, while the slewing mechanism, powered by a two-speed electromotor, ensures stable and reliable operation.

Details of Tower Crane

Product Parameters

 

Rated  lifting  moment		KN.   m	315
Max. lifting  load		t	3
Working  radius		m	2.5~42
Tip  load		t	0.8
Hoisting  height	Independent	m	30
	Attached	m	90
Hoisting  speed		m/min	60/30/5.4
Controlled  speed		m/min	22/44
Slewing  speed		r/min	0.7
Climbing  speed		m/min	0.6
Structure  self-weight		t	18
Total  installed  capacity		Kw	23.7
Balance  weight		t	6.8
Allowed  temperature		° C	-20~40
Working  voltage		v	380± 5%
Max.   working  wind  pressure		N/m²	250
Mast Section Size			1.5mx1.5mx2.2m

Packing&Delivery
Packing in 40HC container.
Steel structure naked or meticulously packed with protective bubble wrap to ensure safety.
Electric components and frequently required parts are securely packed in premium-quality plywood boxes for optimal protection.



Our Exceptional Services
1. We offer bespoke tower crane designs tailored to your specific requirements, ensuring a perfect fit for your needs.
2. Upon understanding your requirements, we will recommend the most ideal model to cater to your project's demands.
3. Seamless shipment arrangements from our port to your chosen destination port, ensuring timely delivery.
4. Comprehensive operational videos can be provided upon request to facilitate understanding.
5. We can dispatch expert technicians to your site to offer guidance on the erection process, ensuring precision and safety.
6. Enjoy a 12-month warranty (excluding wire rope and AC contactor) post-installation, along with year-round access to spare parts.
7. Benefit from our lifelong complimentary technical support, ensuring your equipment operates smoothly at all times.

About Our Company
Shandong Mingdao Heavy Industry Machinery Co., Ltd. proudly resides in Taian City, Shandong Province, proximate to the renowned Mount Tai and the historic Kongzi Temple. Over the past decade, we have dominated the domestic market, establishing ourselves as a leading manufacturer in China. With strategic collaborations with trading companies, our products have reached global markets, including Vietnam, Philippines, Sri Lanka, Bangladesh, France, Dubai, Kazakhstan, Russia, Tanzania, Peru, and New Zealand, garnering a stellar 99% positive feedback from international clientele. Our current focus extends beyond strengthening domestic market presence to capturing global markets with our unparalleled quality and competitive pricing. At Mingdao, integrity, excellence, and customer satisfaction drive us forward.


Certificates