Verified Supplier
1 Years
Zibo Tongpu Vacuum Equipment Co., Ltd.
Zibo Tongpu Vacuum Equipment Co., Ltd.
Manufacturer from China
Zibo Tongpu Vacuum Equipment Co., Ltd.
Zibo Tongpu Vacuum Equipment Co., Ltd.
Zibo Tongpu Vacuum Equipment Co., Ltd. is located in the industrial machinery manufacturing base of China, the hometown of QlLU culture----.Gaoqing economic development zone, Zibo city of Shandong province.
Zibo Tongpu is a professional manufacturer that specialized in lost form and V-method casting equipment and all kinds of vacuum pumps. Here brought together a large number of science and technology workers at lost form and V-method casting for many years that have the rich experience. They are not only proficient in lost form and V-method design and manufacture of theoretical knowledge, but also have rich practical experience. So the equipment's new design could be more close to the users, more in line with the actual needs.
Zibo Tongpu founded in 2005, for the user to manufacture a number of lost form and V-method production lines successively. Including fully-automatic and semi-automatic production lines, but also tailored to the user's simple production line. Our products have a broad market, covering more than twenty provinces, cities and autonomous regions across in China. At the same time, exported to Thailand, South Korea, Taiwan, Vietnam, Indonesia, and Kazakhstan, Russia and so on countries and regions.
Zibo Tongpu has strong technical development and technology service capabilities. We can provide not only reliable casting equipment, but also lost form and V-method molding technology service. Meanwhile, we also undertake "turn-key" projects, according to customers’ demand. Besides, we have set up a foundry plant which adopts the lost form and V-method molding technique as main means of production so as to provide test base for customers to carry out first-phase product testing and stuff training. We provide a variety of services to need of customers at different levels.
We can willing to provide you our best and most sincere service! Let us join hands and work together for common development and growing. and achieve even greater glory.
Zibo Tongpu can offer the following services:
One, Product trial: In the experimental base can be carried out with the early production development, to form a complete product technology and economic parameters report.
Two, Engineering design: Can provide the most optimized engineering design, the most reasonable process, the most economical investment costs, the most economical running costs
Three, Pre-sale service: Timely provide the prefect technical and business consulting, free to the field survey, technical communication with customers, and Professional design according to customer's requirement.
Four, Sale service: At the same time of equipment manufacture, responsible for the relevant personnel of the technical training, provide perfect technology solution, to ensure the project on schedule.
Five, After-sales service: have regular review system, listen to customer Suggestions. Establish customer service files, provide free lifetime technical support. No matter inside and outside the warranty period the received information respond immediately.
| Company Name: | Zibo Tongpu Vacuum Equipment Co., Ltd. |
|---|---|
| Business Type: | Manufacturer |
| Brands: | TOVAC |
| Employee Number: | 100~200 |
| Year Established: | 2005 |
| Total Sales Annual: | 8,000,000-10,000,000 |
| Company Location: | Kaitai road Gaoqing Development Zone Zibo City Shandong Province China |
| Factory Location: | Kaitai road Gaoqing Development Zone Zibo City Shandong Province China |
Zibo Tongpu Vacuum Equipment Co., Ltd.
Zibo Tongpu Vacuum Equipment Co., Ltd. is a national high-tech enterprise deeply engaged in the vacuum equipment and casting equipment industries. Founded in 2005 with a registered capital of 10 million RMB, the company is located in Zibo, Shandong, an important manufacturing base for the machinery industry in China.
The company focuses on the research, development, manufacturing, and sales of lost foam casting and V-process casting production lines, vacuum pumps, and vacuum systems. It is one of the earliest specialized manufacturers in this field in China, with solid technical accumulation and a comprehensive service capability across the entire industry chain. The company provides systematic solutions ranging from individual equipment to complete line engineering for its customers.
The company occupies over 14,000 square meters, with a building area of more than 8,000 square meters. It has a dedicated R&D center, testing center, and fully equipped production workshops for mechanical processing, riveting and welding, and assembly, ensuring stable and controllable product quality.
Counterweight Vacuum-Process Casting Production Line
Vacuum-process casting, also known as vacuum-sealed molding, is an advanced casting technology based on physical molding and negative-pressure fixation. It fundamentally differs from traditional sand casting by eliminating the use of binders and moisture. Instead, it relies on plastic film sealing, dry quartz sand filling, and vacuum negative pressure to stabilize the mold, producing castings with smooth surfaces, high dimensional accuracy, and dense internal structures.
In simple terms, the core process flow is as follows:
Mold installation → Film heating → Film covering and coating spraying → Sand flask placement and coating drying → Sand filling → Vibration compaction → Flask removal → Mold closing and pouring → Cooling and shakeout.
I.Main Components of the Production Line
1.Film Heating and Forming System
The EVA film is automatically cut, stretched, and heated so that it perfectly adheres to the mold surface. This is the first critical step in achieving a smooth and high-quality casting surface.
2.Sand Flasks and Traveling Vibration Compaction Table
Specialized sand flasks are equipped with high-efficiency pneumatic vibration tables, ensuring that dry sand is uniformly and densely compacted into every corner of the mold under negative pressure.
3.Vacuum System (The Heart of the Production Line)
This is the core component of the line. We provide stable, efficient, and energy-saving vacuum pump units combined with an intelligent control system to maintain a constant and adjustable negative pressure throughout molding, pouring, and cooling. This is essential for preserving mold strength.
4.Flask Turning and Mold Closing System
Using precision guiding mechanisms and power drives, this system enables smooth flask turning and accurate mold closing, ensuring precise alignment between upper and lower flasks and reducing mismatch defects.
5.Rainfall-Type Sand Filling System
By simulating a “rainfall” effect, dry sand is filled into the flask evenly and gently, avoiding impact on the film and mold while preventing uneven sand compaction.
6.Sand Drop and Sand Reclamation System
After pouring and cooling, the vacuum is released, allowing the casting to automatically separate from the sand mold. The dry sand is then cooled, dedusted, and screened, achieving nearly 100% recycling, significantly reducing material costs and environmental burden.
7.Intelligent Control System
A PLC / industrial PC centralized control system with an integrated Human–Machine Interface (HMI) is adopted. It enables real-time monitoring of all key parameters—such as vacuum level, vibration time, film heating temperature, and production takt—while supporting one-touch start/stop, fault diagnosis, data traceability, and report generation, laying a solid foundation for a smart factory.
II.Advantages of the V-Process Production Line
1.Ultra-High Casting Quality
Excellent surface finish: Casting surface roughness can reach Ra 12.5–25 μm, approaching the level of investment casting, greatly reducing cleaning and machining time.
High dimensional accuracy: By eliminating expansion and deformation caused by moisture and binders, the process ensures excellent dimensional stability.
Fewer internal defects: Outstanding sand mold permeability effectively reduces defects such as porosity, sand inclusions, and slag entrapment.
2.Significant Cost Savings
Low material cost: Sand requires no binders or water, with a recycling rate of over 97%, resulting in minimal sand consumption.
Lower energy and labor costs: A simplified process eliminates sand mixing and mold drying, is easy to automate, and can reduce labor requirements by 30–50%.
Lower environmental compliance costs: No harmful gas emissions and simple dust control significantly reduce environmental management investment.
3.Truly Green and Environmentally Friendly
Pollution-free: No harmful fumes (such as formaldehyde or SO₂) generated from chemical binders like resins or sodium silicate.
Low emissions: The working environment is greatly improved and fully complies with the most stringent environmental regulations, making it an ideal choice for sustainable development.
4.Outstanding Process Flexibility
Wide choice of molds: Wooden, resin, and metal molds can be used. Mold costs are relatively low, and design modifications can be implemented quickly.
Broad application range: Particularly suitable for medium and large-sized, thin-walled, and complex castings, such as machine tool beds, housings, pallets, pressure-resistant valve bodies, and artistic castings.
Service & Commitment
Process support: From product manufacturability analysis to mold design guidance
Turnkey projects: From site planning to installation, commissioning, and personnel training
Lifetime service: Spare parts supply, remote diagnostics, and process optimization services to ensure long-term stable operation of the production line
Step into high-end casting—starting with one right choice.
Contact us today to obtain a customized V-process casting solution and a comprehensive economic benefit analysis report tailored to your products.
The company holds 26 independent intellectual property patents. It has passed ISO9001 quality management system certification and has been recognized as a national high-tech enterprise, a technology-based small and medium-sized enterprise, and a provincial innovation-oriented small and medium-sized enterprise. The technical team comprises several senior engineers who independently develop vacuum pumps and lost foam casting and V-process casting production lines. The company also has experienced casting process engineers in the lost foam and V-process casting fields, with strong theoretical knowledge and rich on-site practical experience, providing services in lost foam and V-process vacuum casting.
Independent R&D Capability: Owns intellectual property rights and patented technologies, capable of designing new products and improving processes.
Strong Technical Team: A combination of senior engineers and technical experts, with both theoretical knowledge and extensive on-site experience.
Innovation Capability: Able to quickly develop customized equipment or solutions based on market and customer needs.
The company currently employs 73 staff members, including 5 project managers, 6 personnel with senior professional titles, 12 with intermediate professional titles, 21 with junior professional titles, as well as a number of experienced skilled technicians. The team structure is lean and efficient, fully covering all business functions such as R&D, production, sales, and after-sales service.
The technical team consists of engineers from multiple disciplines, including mechanical design, electrical control, vacuum systems, and casting processes. Most team members have long been engaged on the front lines of casting and equipment manufacturing, combining a solid theoretical foundation with extensive on-site practical experience. They specialize in non-standard equipment design and adaptation to actual operating conditions, enabling them to accurately and efficiently respond to customers’ customized requirements.
The company has established experimental and pilot production bases, providing customers with process validation, technical training, and ongoing after-sales technical support, helping clients achieve stable and efficient production operations.
I.Foundation and Registration Stage (2000–2005)
2000
The predecessor of the company, Zibo Zhangdian Tongpu Vacuum Equipment Factory, was established. In the early start-up period, the team focused on vacuum pumps as well as equipment related to lost foam casting and V-process (vacuum molding) casting. The company carried out technical R&D, process exploration, and small-batch customized production, gradually forming the initial brand identity and business framework. During this stage, Tongpu defined vacuum pumps and vacuum units as its core product direction and established its basic manufacturing capabilities.
October 21, 2005
The enterprise completed industrial and commercial registration and was officially renamed Zibo Tongpu Vacuum Equipment Co., Ltd., with a registered capital of RMB 10 million. The company was located in Zhangdian District, Zibo City, Shandong Province, and clearly defined vacuum equipment, lost foam casting equipment, and V-process vacuum casting equipment as its main business areas.
In 2011, the company relocated as a whole to Gaoqing County, Zibo City, Shandong Province, further expanding its production capacity and development space.
II.Growth and Business Expansion Stage (2006–2015)
2006–2010
The company successively established specialized workshops for machining, fabrication and welding, and assembly, forming a relatively complete manufacturing system. During the same period, it passed the ISO 9001 Quality Management System Certification, continuously improving management standards and product quality.
2011–2015
The product portfolio was continuously expanded to form a multi-series system covering screw vacuum pumps, Roots vacuum pumps, liquid ring vacuum pumps, reciprocating vacuum pumps, and various vacuum units. Meanwhile, the company increased investment in the R&D and manufacturing of lost foam casting and V-process casting production lines. The equipment was widely applied in many provinces and cities across China and exported to South Korea, Russia, Southeast Asia, and other countries and regions, steadily enhancing market influence.
III.Upgrading and Specialization Stage (2016–2025)
After 2020
The company was recognized as a Provincial High-Tech Enterprise and established dedicated R&D and testing centers, continuously strengthening technological innovation and non-standard customization capabilities.
2020–2025
Focusing on continuous optimization and upgrading of casting equipment and vacuum systems, the company further improved core products such as the SZ Series 3D Vibration Compaction Table and sand coolers for casting applications, and successfully delivered multiple fully automated lost foam and V-process casting production lines. At the same time, Tongpu built an integrated service model combining equipment, process solutions, and technical training.
At present, the company’s products and solutions cover more than 20 provinces and cities in China and are exported to multiple countries and regions, gradually developing into a company with regional influence in the fields of lost foam casting, V-process casting, and vacuum equipment.
Service and Solution Advantages
Pre-sales Service: Process technical guidance, prototype manufacturing, tooling and mold design.
After-sales Service: Installation and commissioning, training, spare parts support, and remote assistance.
Customized Solutions: Tailored equipment and line solutions based on customer capacity, process, and material characteristics to meet specific working conditions.
| Market name: | Worldwide |
|---|---|
| Contact Person: | Liu |