FAQs

Answer: We primarily offer two major core product lines:

1. High-Precision Spheres: Ceramic spheres (zirconia, silicon nitride, silicon carbide, alumina), cemented carbide spheres, special alloy spheres (Hastelloy, Stellite, Monel, Inconel), plastic spheres (PEEK, PTFE, nylon), glass spheres (quartz, borosilicate, soda-lime glass); as well as complete solutions for valve balls and valve seats.
2. Precision Custom-Shaped Structural Components: Ceramic structural components, cemented carbide components, special metal custom-shaped assemblies, precision bearing assemblies, VCM motor balls, medical ceramic bearings, petroleum mechanical seals, and high-temperature-resistant precision components for aerospace applications.

We also provide complete application solutions for ceramic bearings, stainless steel bearings, and plastic bearings. Our ball product sizes range from 0.4 mm to 63.5 mm, and all non-standard sizes can be customized.

Answer: We have a comprehensive material processing system. Standard stock materials are available for direct mass production, while special materials can be customized in collaboration with our R&D team:

1. Ceramic materials: Zirconia (ZrO₂), Silicon Nitride (Si₃N₄, Silicon Carbide (SiC), Aluminum Oxide (Al₂O₃);
2. Cemented carbides: YG/YN series tungsten carbide and titanium carbide alloys;
3. Special alloys: Hastelloy, Stellite, Monel, Inconel, stainless steel;
4. Engineering plastics: PEEK, PTFE, POM, nylon, ultra-high molecular weight polyethylene;
5. Glass materials: quartz, borosilicate glass, optical glass;
6. Conventional metals: precision-machined parts made from common metals such as aluminum, copper, and iron.

Answer: With over a decade of experience in precision machining of new materials, we possess several unique competitive advantages:

1. In-house R&D, production, and sales integration: We hold 23 patents, including 5 invention patents and 18 utility model patents. We independently develop the entire process—from material formulation to sintering and grinding—and can simultaneously provide material selection and comprehensive product design solutions;
2. In-house production of all material categories: Ceramics, cemented carbides, special alloys, plastics, glass spheres, and structural components are all manufactured in our own factories without any outsourced processes, ensuring unified control over quality standards;
3. Flexible Order Handling Mechanism: We can reliably schedule production and deliver orders ranging from small-batch R&D prototypes to large-scale orders in the millions;
4. Rigorous End-to-End Quality Control: Equipped with a full suite of testing equipment, including a coordinate measuring machine (CMM), Mitutoyo roundness gauge, roughness tester, airtightness tester, and salt spray tester; we provide CNAS-accredited third-party test reports, with a stable product pass rate of over 99.5% upon shipment;
5. High-End Automated Mass Production Capabilities: Equipped with high-precision ball grinders, fully automated ball sorting lines, and multi-axis CNC machining centers; annual supply of ball products is projected to exceed 300 million units by 2025;
6. Proven Implementation Cases Across Multiple Industries: Products are used in consumer electronics, healthcare, petroleum, telecommunications data centers, and aerospace, with a long-standing track record of serving leading enterprises and research institutions in these sectors;
7. Comprehensive System Certifications: Designated as a National High-Tech Enterprise, we hold three system certifications: ISO 9001 (Quality), ISO 14001 (Environment), and ISO 45001 (Occupational Health and Safety).

Answer: We accept all orders, ranging from single-unit prototypes to large-scale mass production, with no mandatory minimum order quantity:

1. New product R&D phase: We support extremely small batches of 1–100 units for rapid material validation and dimensional trial production;
2. Regular orders from small and medium-sized customers: We consistently fulfill orders ranging from several hundred to tens of thousands of standard spheres and small structural components;
3. Large-scale mass production projects: We have an annual supply capacity in the hundreds of millions; our annual supply of zirconia ceramic balls alone exceeds 250 million pieces.

For new product development by university laboratories, research institutes, and startups, we offer an expedited prototyping service to shorten the prototyping cycle.

Answer: Our products are suitable for core applications in more than ten high-end manufacturing industries:

1. Consumer Electronics: VCM (Voice Coil Motor) for mobile phones, drone camera modules, insulated supports for wireless charging, and connector terminals;
2. Telecommunications & Data Centers: High-speed backplane connectors, precision positioning components for optical modules, and bearings for liquid-cooled heat sink pumps;
3. New Energy Vehicles: Insulated ceramic bearings for drive motors, sensor and transmission components for vehicle cockpits;
4. Medical Devices: Zirconia shafts for filter separators, precision medical isolation components, and medical-grade filter balls;
5. Oilfield Equipment: Cemented carbide valve balls and seats for high-pressure wellheads and mud pumps, suitable for high-temperature and highly corrosive operating conditions;
6. Aerospace Research: Ultra-high-temperature precision sintered components for the Chinese Academy of Sciences and universities;
7. General Industry: Precision bearings, high-end valves, wear-resistant seals, and optical path positioning components.

Answer: The machining precision of spheres made from various materials is at the industry-leading level. The key parameters are as follows:

1. Zirconia ceramic balls cover precision grades from G10 to G1000 and exhibit excellent surface finish;
2. Silicon nitride and silicon carbide micro-insulating balls start at a minimum size of 0.3 mm and feature non-magnetic and high-insulation properties;
3. Cemented carbide valve balls and alloy balls achieve a hardness of HRC 70 or higher, with dimensional tolerances controlled within ±2.54 μm;
4. All balls undergo grading and screening via fully automated sorting equipment, ensuring stable roundness and dimensional consistency to meet the high-precision assembly requirements of VCMs, optical modules, medical devices, and other applications.

Answer: The company holds a complete set of compliance qualifications and technical certifications, which can be verified by customers:

1. Corporate Qualifications: China National High-Tech Enterprise (Certificate No. GR202333003026);
2. Management Systems: ISO 9001 Quality Management, ISO 14001 Environmental Management, and ISO 45001 Occupational Health and Safety—all three system certifications;
3. Technical Patents: A total of 23 proprietary patents covering core production processes such as sintering, grinding, airtightness testing, and spherical particle sorting;
4. Testing Qualifications: Products can be accompanied by CNAS-accredited third-party test reports and have passed RoHS testing for hazardous substances;
5. Industry Partnerships and Endorsements: We have a long-standing track record of serving publicly traded companies, military research institutes, and internationally renowned electronics brands.

Answer: We offer comprehensive non-standard customization services and can provide multi-dimensional customization based on your needs:

1. Dimensional Customization: Standard ball sizes range from 0.4 to 63.5 mm; oversized balls can be machined up to 100 mm. Valve seats support the full range of V11 standard sizes, and we can also customize non-standard opening sizes and height parameters;
2. Structural Customization: Irregular-shaped shafts, eccentric balls, stepped assemblies, custom sealing components, optical alignment brackets, and motor insulation separators can all be machined according to drawings or 3D models;
3. Composite Material Customization: Depending on operating conditions, we offer composite structures such as ceramic + alloy and cemented carbide + stainless steel;
4. Customized Processes: Special surface treatments such as mirror polishing, high insulation, acid and alkali resistance, high-temperature resistance, and non-magnetic finishes can all be processed as needed.

Answer: Standardized delivery lead times are set for different product categories, and rush orders can be prioritized in production scheduling:

1. Standard spheres (zirconia/alumina ceramic spheres, standard cemented carbide spheres): In stock; shipped within 3 business days;
2. Prototyping for new products (non-standard dimensions, irregular shapes, new materials, new model samples): 7–15 days for standard materials and processes; 15–25 days for special high-temperature alloys and custom sintered parts. With our in-house, fully integrated sintering, grinding, and machining production lines, our delivery lead times are 30% shorter than those of our competitors.
3. High-volume mass production orders: Please contact our sales representatives to negotiate a stable production schedule and ensure continuous supply.

Answer: Products made from different materials offer specific performance advantages tailored to different operating conditions:

1. Ceramic balls (silicon nitride / zirconia): lightweight (silicon nitride has a density of only 40% that of steel), non-magnetic and insulating, capable of withstanding temperatures above 800°C, with a service life 5–10 times longer than steel balls, corrosion-resistant, and rust-free;
2. Cemented carbide valve balls: Hardness can reach HRC 70 or higher; resistant to oil, gas, and strong acids and alkalis; excellent airtightness under high-pressure conditions; can significantly extend the service life of petroleum equipment;
3. Special alloy balls (Stellite / Hastelloy): Suitable for marine and highly corrosive chemical media; impact-resistant; resistant to deformation in high-temperature environments;
4. Plastic balls (PEEK / PTFE): Self-lubricating, quiet in operation, and resistant to acid and alkali corrosion; suitable for low-load, corrosion-resistant precision transmission applications.

Answer: We accept custom manufacturing based on drawings and 3D models. Customers can initiate technical coordination by providing any one of the following types of materials:

1. 2D engineering drawings (with complete specifications for tolerances, surface finish, material, heat treatment, and surface treatment requirements);
2. 3D models in STEP/IGS format;
3. Physical samples (we can perform reverse engineering to create drawings and optimize product solutions for specific operating conditions);
4. Operating condition specifications (including temperature, corrosive media, rotational speed, pressure, wear resistance requirements, etc.); our engineers can provide free recommendations for material selection and optimization.

Answer: The entire procurement collaboration process is standardized and transparent, consisting of 6 steps:

1. Requirements Discussion: The customer provides product drawings, specifications, purchase quantity, and actual operating conditions;
2. Proposal and Quotation: Engineers select the appropriate materials and issue a comprehensive proposal including dimensions, materials, price, and delivery time;
3. Sample Production: We produce and deliver a small batch of samples for the customer to test and verify product performance;
4. Mass Production: Once the samples are approved, a mass production order is placed and production is scheduled;
5. Factory Inspection: We conduct comprehensive inspections of dimensions, hardness, surface finish, and environmental compliance, and ship the products with an accompanying factory inspection report;
6. Post-Sales Technical Support: We assign a dedicated technical liaison on a long-term basis to assist the customer with operating condition optimization and new product development.