Crawler-type crushing system plants excite intensely during high-speed operation mainly through vibrations.
When it comes to most rivals, metal fatigue in the frame is the main limiting factor.
Zhongda Steel Structure is integrating seismic resistance and fatigue analysis technologies derived from long-span steel bridge engineering into mobile chassis design.
Materials with carrier aircraft-grade rating. Zhongda utilizes high-strength steel Q355B / Q460, and all critical load-bearing points are subjected to a complete stress-relief cycle.
Heavy-duty manufacturing capacity. Zhongda runs the leading presses of 1,000 tons and large CNC machining centers in Northeast China, which enables the company to ensure the geometric accuracy of large structural components.
Project background of the state-owned.Zhongda has been a long-term supplier of mobile crushing stations and TBM equipment to major local state-owned enterprises, such as Northern Heavy Industries,s and has thus gained an in-depth understanding of the extreme structural requirements of crushing applications.
Custom chassis design. Zhongda can modify fabrications to rough track or rough-wheeled mobile chassis for Zebo supply, which means increasing mobility and load performance by up to 30%.
Crusher module selection. Be it jaw, cone, or impact crushers for construction waste, Zhongda gets the structure ready for your material hardness curve by giving examples of hard rock, soft stone, and recycled materials.
Environmental adaptation. Zhongda has it for you: high-altitude oxygen-deficiency protection, hydraulic pre-heating systems for extreme cold down to -40°C, and anti-corrosion treatment for coastal high salt-spray environments.
Smart system integration. Zhongda provides full automation control systems that include remote monitoring and fault warning functions.
| Technical Specs | Zhongda Standard | Industry Standard |
| Capacity | 100 – 800 TPH | 100 – 500 TPH |
| Frame Material | Q355B / Q460 bridge-grade steel | Q235B carbon steel |
| Main beam safety factor | 2.5 – 3.0 | 1.5 – 2.0 |
| Weld inspection | 100% ultrasonic testing (UT), Level II or higher | 20% – 30% random inspection |
| Chassis load capacity | Up to 120 tons | 60 – 80 tons |
| Deployment time | Less than 4 hours | 8 – 12 hours |
| Service life | 15 – 20 years | 8 – 10 years |
Q: What is the duration of the warranty?
A: Zhongda offers an entire 3-year warranty, withCylinder straightness tolerance guaranteed at ≤ 3 mm per meter.
Q: How long is the expected service life of the equipment?
A: In general, if properly maintained, the products of Zhongda can last for 15-20 years, and the long-term value is excellent.
Q: How much lead time does the production take, and what is the capacity?
A: Depending on the time of drawing approval and the extent of customization, standard models can be shipped within 30-60 days.
At a large coal-fired power plant project in Shandong, schedule pressure was extremely high.
The project was to install 12 coal mill housings of extremely large size.
Pain point.
Traditional on-site welding took too long, and under such conditions, control over the quality of welding was very difficult.
Zhongda took advantage of the large indoor installation area at the Shenyang base to perform the reassembly of all 12 housings, the result of which was perfect coaxial alignment.
Actual result.
After delivery, the on-site installation time was cut by 25% because the bulk of the realignment and calibration work was eliminated.
One day of earlier commissioning will be of considerable economic benefit for a power plant of this size.
As a key Belt and Road project, six equipment housings shipped to Indonesia had to be designed for long ocean transport and for the severe local IT environment, including temperature, humidity, and salt spray.
Pain point.
Standard coatings normally peel within a year when exposed to tropical environments, thus corrosion and thickness reduction of the wall are inevitable.
1. 20 years of direct factory supply with no middlemen.
Founded in 2002, Zhongda has focused on steel structures for over two decades.
Zhongda operates a 120,000-square-meter production base equipped with 1,000-ton presses and large plate-rolling machines.
2. National-level certifications and project recognition.
Zhongda holds Grade-A steel structure contracting qualifications, along with building construction and municipal engineering licenses.
Projects built by Zhongda have received China’s top industry honors, including the Luban Award and the China Steel Structure Gold Award.
3. Guaranteed annual capacity of 50,000 tons.
With automated production lines capable of producing 50,000 tons per year, Zhongda can handle large-scale global orders while ensuring on-time delivery and consistent quality.
