China Custom Tower Crane CE Certificate Self-Raising Tower Crane 5t 6t 8t 10t 12t 18t Construction Crane Tower

Product Description


Product Description

TAVOL have more than 30 years production history and more than 10 years of overseas business experience,  can supply other capacity tower crane from 4t to 18 t .

We have an independent research and development team.
All mechanical designers have a Bachelor Degree or above in mechanical engineering, more than 5 Years of experience in the cranes machinery industry, adopt the advance design concepts, and continue to innovate.

TAVOL brand tower crane applied CE certificate, the performance & technical specification is advanced in China, has reached the international advanced level .

We have exported to many countries, such as USA, Germany, Brazil, UK, Bangladesh,  Philippines, Sri Lanka, Vietnam, Maldives, Cambodia, Oman, Saudi Arabia, Sudan, Kenya, Guinea, Georgia, Indonesia, South America etc. 


Product Parameters

Model QTZ63-5571 Topkit Tower Crane
Lifting jib length 50 m
Max load capacity 5 t
Tip load capacity 1.0t @50m jib end
Mast 1.6*1.6*2.5 m 


>>> Safety Feature for Construction Building Tower Crane

1   Torque limiter it will warns when lifting weights reach to 90% of rated lifting torque.
When reach to 110% of the rated lifting torque, it will limit rising upwards and trolley.
2 Weight limiter Control the maximum lifting capacity.
lifting weight reach to 40% of the rated capacity, limit high-speed lifting;
lifting weight reach to 110% of the rated capacity, limit  the lifting up
3 Height limiter Control the lowest and highest extreme position of lifting hook
4 Slewing limiter Control the extreme turns number of turn left and right
5 Amplitude limiter Control trolley limit position of inward and outward
6 Overload protection If the material is over the capacity, the crane will give a sharp warning for protection itself
7 Emergency brake If the operation staff  encounter some emergency situation, we could start the emergency brake system to protection the related treasure
8 Control Method Room control or remote control to avoid any injury to the operation staff
9 Main lifting motor with thermal protection and currency protection

>>> Main Parts Brand We Use for Tower Crane


Other Capacity Crane We Have


Model Jib Length Max Load Tip Load
QTZ40 4208 42m  4t 0.8 t
4708 47m 4t 0.8 t
4808 48m 4t 0.8 t
QTZ50 5008 50m 4t 0.8 t
5571 50m 4t 1.0 t
QTZ63 5571 50m 5t 1.0 t
5013 50m 5t 1.3 t
5610 56m 6t 1.0 t
QTZ80 5613 56m 6t 1.3 t
6012 60m 6t 1.2 t
6012 60m 8t 1.2 t
QTZ100 6013 60m 8t 1.3 t
QTZ125 6015 60m 8t 1.5 t
6015 60m 10t 1.5 t
QTZ160 6516 65m 10t 1.6 t
QTZ250 7030 70m 12t 3.0 t
QTZ315 7040 70m 18t 4.0 t

Payment Terms

1. T/T
2. L/C
3. Western union


Our Advantages

1. We are manufacturer but also group company, which have more than 10 years of overseas business experience and more than 30 years of experience in designing and fabricate, the quality more steady.
2. All machines sold must be tested before shipment, 100% quality.
3. With CE certification.
4. 7*24 hours technical support by email, telephone or video online.
5. User-friendly English manual for machine using and maintain.
6. Spare parts will be offered for free.
7. Professional design drawing can be provided according to installation site request.
8. All the raw material from Baosteel , Laigang Group etc, guarantee good quality . 
The quality supervision department will casual inspection the raw material through the carbon and sulfur analyzer, Microprocessor-based analyzer, Arc combustion carbon sulfur Analyzer and so on.
9. Using the carbon dioxide arc welding+ argon welding, the welding quality is good and steady. 
10. All the steal structure raw material uses the Q355 Mn steel 
11. The design of cabin and maintenance platform are more humanized . 
12. The balance weight stacks can be changed according to the lifting arm length. It will be suitable for different working environment . 
13. The painting uses the sand blast technique ,it will conform the surface of the steel clean, improve the painting adhesive force .
All the parts will be painted 3 times , 1 time finishing coat and 2 times primer . 
14. Protecting device including the lifting limiter ,slewing limiter, trolley limiter ,weight limiter and moment limiter .
The wire rope used the prevention of breaking and skipping .
The trolley used the prevention of breaking the shaft and falling down . 
15. Using the top brand electric ,the stainless steel distribution box ,aviation plug . 
16. Professional guidance ,installation and training team

Packaging & Shipping

Steel structure in nude or packed by bubble. 

Electric part and easily demand parts packed by high quality plywood box or steel box


After Sales Service

Pre-sale Service
1. We can customize products according to client’s demand.Many styles of products for your choices.
2. High Quality + Factory Price + Quick Response + Reliable Service, is what we trying best to offer you
3. All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service. 
4. We have more than 20 year experience in design and manufacture, we cherish every order from our honor
5. The details technical data and CAD drawing will provide you at first time.

After You Choose us
1. We will count cheapest shipping cost and make invoice to you at once.
2. Test each machine before delivery to ensure plants quality, then send out to you after your payment.
3. Our engineers are available to guide the operators abroad.
4. Strict quality control system, supervision the work to ensure the best crane for you.
5. Strict production line, make sure manufacture the goods on time.
6. Best cooperation forwarder provide the soonest and reliable service foe our goods.

After-sale Service 
1. We are very glad that customer give us some suggestion for price and products.
2. We supply you installation video to assist you to install the crane to help you save the installation cost
3. Send free spare parts within warranty time 
4. Provide Installation manual and operation manual ,electric drawing
5. 24*7 hours on line service 

Company Profile

Tavol Cranes Group is the professional manufacturer for tower crane and construction lift in China .

Our main businesss scope as below:
+ Top Kit Tower Crane,
+  Flat Top Tower Crane,
+  Luffing Tower Crane,
+  Building Hoists, 
+  Gondola/ Suspended Working Platform

Welcome to contact us if any inquiry you have . 
Ms. Kelley 


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After-sales Service: Install Service Avaiable
Warranty: 14 Month
Certification: CE, ISO9001
Condition: New
Maximum Lifting Height: 100-150m
Maximum Lifting Weight: 5t


What factors influence the design and tooling of injection molded parts for specific applications?

Several factors play a crucial role in influencing the design and tooling of injection molded parts for specific applications. The following are key factors that need to be considered:

1. Functionality and Performance Requirements:

The intended functionality and performance requirements of the part heavily influence its design and tooling. Factors such as strength, durability, dimensional accuracy, chemical resistance, and temperature resistance are essential considerations. The part’s design must be optimized to meet these requirements while ensuring proper functionality and performance in its intended application.

2. Material Selection:

The choice of material for injection molding depends on the specific application and its requirements. Different materials have varying properties, such as strength, flexibility, heat resistance, chemical resistance, and electrical conductivity. The material selection influences the design and tooling considerations, as the part’s geometry and structure must be compatible with the selected material’s properties.

3. Part Complexity and Geometry:

The complexity and geometry of the part significantly impact its design and tooling. Complex parts with intricate features, undercuts, thin walls, or varying thicknesses may require specialized tooling and mold designs. The part’s geometry must be carefully considered to ensure proper mold filling, cooling, ejection, and dimensional stability during the injection molding process.

4. Manufacturing Cost and Efficiency:

The design and tooling of injection molded parts are also influenced by manufacturing cost and efficiency considerations. Design features that reduce material usage, minimize cycle time, and optimize the use of the injection molding machine can help lower production costs. Efficient tooling designs, such as multi-cavity molds or family molds, can increase productivity and reduce per-part costs.

5. Moldability and Mold Design:

The moldability of the part, including factors like draft angles, wall thickness, and gate location, affects the mold design. The part should be designed to facilitate proper flow of molten plastic during injection, ensure uniform cooling, and allow for easy part ejection. The tooling design, such as the number of cavities, gate design, and cooling system, is influenced by the part’s moldability requirements.

6. Regulatory and Industry Standards:

Specific applications, especially in industries like automotive, aerospace, and medical, may have regulatory and industry standards that influence the design and tooling considerations. Compliance with these standards regarding materials, dimensions, safety, and performance requirements is essential and may impact the design choices and tooling specifications.

7. Assembly and Integration:

If the injection molded part needs to be assembled or integrated with other components or systems, the design and tooling must consider the assembly process and requirements. Features such as snap fits, interlocking mechanisms, or specific mating surfacescan be incorporated into the part’s design to facilitate efficient assembly and integration.

8. Aesthetics and Branding:

In consumer products and certain industries, the aesthetic appearance and branding of the part may be crucial. Design considerations such as surface finish, texture, color, and the inclusion of logos or branding elements may be important factors that influence the design and tooling decisions.

Overall, the design and tooling of injection molded parts for specific applications are influenced by a combination of functional requirements, material considerations, part complexity, manufacturing cost and efficiency, moldability, regulatory standards, assembly requirements, and aesthetic factors. It is essential to carefully consider these factors to achieve optimal part design and successful injection molding production.

What eco-friendly or sustainable practices are associated with injection molding processes and materials?

Eco-friendly and sustainable practices are increasingly important in the field of injection molding. Many advancements have been made to minimize the environmental impact of both the processes and materials used in injection molding. Here’s a detailed explanation of the eco-friendly and sustainable practices associated with injection molding processes and materials:

1. Material Selection:

The choice of materials can significantly impact the environmental footprint of injection molding. Selecting eco-friendly materials is a crucial practice. Some sustainable material options include biodegradable or compostable polymers, such as PLA or PHA, which can reduce the environmental impact of the end product. Additionally, using recycled or bio-based materials instead of virgin plastics can help to conserve resources and reduce waste.

2. Recycling:

Implementing recycling practices is an essential aspect of sustainable injection molding. Recycling involves collecting, processing, and reusing plastic waste generated during the injection molding process. Both post-industrial and post-consumer plastic waste can be recycled and incorporated into new products, reducing the demand for virgin materials and minimizing landfill waste.

3. Energy Efficiency:

Efficient energy usage is a key factor in sustainable injection molding. Optimizing the energy consumption of machines, heating and cooling systems, and auxiliary equipment can significantly reduce the carbon footprint of the manufacturing process. Employing energy-efficient technologies, such as servo-driven machines or advanced heating and cooling systems, can help achieve energy savings and lower environmental impact.

4. Process Optimization:

Process optimization is another sustainable practice in injection molding. By fine-tuning process parameters, optimizing cycle times, and reducing material waste, manufacturers can minimize resource consumption and improve overall process efficiency. Advanced process control systems, real-time monitoring, and automation technologies can assist in achieving these optimization goals.

5. Waste Reduction:

Efforts to reduce waste are integral to sustainable injection molding practices. Minimizing material waste through improved design, better material handling techniques, and efficient mold design can positively impact the environment. Furthermore, implementing lean manufacturing principles and adopting waste management strategies, such as regrinding scrap materials or reusing purging compounds, can contribute to waste reduction and resource conservation.

6. Clean Production:

Adopting clean production practices helps mitigate the environmental impact of injection molding. This includes reducing emissions, controlling air and water pollution, and implementing effective waste management systems. Employing pollution control technologies, such as filters and treatment systems, can help ensure that the manufacturing process operates in an environmentally responsible manner.

7. Life Cycle Assessment:

Conducting a life cycle assessment (LCA) of the injection molded products can provide insights into their overall environmental impact. LCA evaluates the environmental impact of a product throughout its entire life cycle, from raw material extraction to disposal. By considering factors such as material sourcing, production, use, and end-of-life options, manufacturers can identify areas for improvement and make informed decisions to reduce the environmental footprint of their products.

8. Collaboration and Certification:

Collaboration among stakeholders, including manufacturers, suppliers, and customers, is crucial for fostering sustainable practices in injection molding. Sharing knowledge, best practices, and sustainability initiatives can drive eco-friendly innovations. Additionally, obtaining certifications such as ISO 14001 (Environmental Management System) or partnering with organizations that promote sustainable manufacturing can demonstrate a commitment to environmental responsibility and sustainability.

9. Product Design for Sustainability:

Designing products with sustainability in mind is an important aspect of eco-friendly injection molding practices. By considering factors such as material selection, recyclability, energy efficiency, and end-of-life options during the design phase, manufacturers can create products that are environmentally responsible and promote a circular economy.

Implementing these eco-friendly and sustainable practices in injection molding processes and materials can help reduce the environmental impact of manufacturing, conserve resources, minimize waste, and contribute to a more sustainable future.

Are there different types of injection molded parts, such as automotive components or medical devices?

Yes, there are various types of injection molded parts that are specifically designed for different industries and applications. Injection molding is a versatile manufacturing process capable of producing complex and precise parts with high efficiency and repeatability. Here are some examples of different types of injection molded parts:

1. Automotive Components:

Injection molding plays a critical role in the automotive industry, where it is used to manufacture a wide range of components. Some common injection molded automotive parts include:

  • Interior components: Dashboard panels, door handles, trim pieces, instrument clusters, and center consoles.
  • Exterior components: Bumpers, grilles, body panels, mirror housings, and wheel covers.
  • Under-the-hood components: Engine covers, air intake manifolds, cooling system parts, and battery housings.
  • Electrical components: Connectors, switches, sensor housings, and wiring harnesses.
  • Seating components: Seat frames, headrests, armrests, and seatbelt components.

2. Medical Devices:

The medical industry relies on injection molding for the production of a wide range of medical devices and components. These parts often require high precision, biocompatibility, and sterilizability. Examples of injection molded medical devices include:

  • Syringes and injection pens
  • Implantable devices: Catheters, pacemaker components, orthopedic implants, and surgical instruments.
  • Diagnostic equipment: Test tubes, specimen containers, and laboratory consumables.
  • Disposable medical products: IV components, respiratory masks, blood collection tubes, and wound care products.

3. Consumer Products:

Injection molding is widely used in the production of consumer products due to its ability to mass-produce parts with high efficiency. Examples of injection molded consumer products include:

  • Household appliances: Television and audio equipment components, refrigerator parts, and vacuum cleaner components.
  • Electronics: Mobile phone cases, computer keyboard and mouse, camera components, and power adapters.
  • Toys and games: Action figures, building blocks, puzzles, and board game components.
  • Personal care products: Toothbrushes, razor handles, cosmetic containers, and hairdryer components.
  • Home improvement products: Light switch covers, door handles, power tool housings, and storage containers.

4. Packaging:

Injection molding is widely used in the packaging industry to produce a wide variety of plastic containers, caps, closures, and packaging components. Some examples include:

  • Bottles and containers for food, beverages, personal care products, and household chemicals.
  • Caps and closures for bottles and jars.
  • Thin-walled packaging for food products such as trays, cups, and lids.
  • Blister packs and clamshell packaging for retail products.
  • Packaging inserts and protective foam components.

5. Electronics and Electrical Components:

Injection molding is widely used in the electronics industry for the production of various components and enclosures. Examples include:

  • Connectors and housings for electrical and electronic devices.
  • Switches, buttons, and control panels.
  • PCB (Printed Circuit Board) components and enclosures.
  • LED (Light-Emitting Diode) components and light fixtures.
  • Power adapters and chargers.

These are just a few examples of the different types of injection molded parts. The versatility of injection molding allows for the production of parts in various industries, ranging from automotive and medical to consumer products, packaging, electronics, and more. The specific design requirements and performance characteristics of each part determine the choice of materials, tooling, and manufacturing processes for injection molding.

China Custom Tower Crane CE Certificate Self-Raising Tower Crane 5t 6t 8t 10t 12t 18t Construction Crane Tower  China Custom Tower Crane CE Certificate Self-Raising Tower Crane 5t 6t 8t 10t 12t 18t Construction Crane Tower
editor by CX 2023-12-28