Specializing in the development of ball roundness testing machines, strictly adhering to international and domestic standards such as ISO 22862 and GB/T 22868, it provides precise roundness detection ...
Specializing in the development of ball roundness testing machines, strictly adhering to international and domestic standards such as ISO 22862 and GB/T 22868, it provides precise roundness detection for various sports balls including footballs, basketballs, and tennis balls. The equipment employs a detection technology combining laser scanning and high-precision sensors, capable of achieving roundness error measurement at the 0.01mm level. It automatically collects 360° contour data of the ball and generates a true roundness analysis report. It supports standard testing mode (simulating actual rolling force) and custom mode, catering to the full inspection needs of ball manufacturing production lines, new product development (optimizing ball structure design), and certification requirements of third-party testing institutions.
Product Overview
This testing machine is suitable for measuring the roundness accuracy of the outer edge of sports balls such as basketballs, footballs, volleyballs, and handballs.
Principle: The spherical true roundness measurement testing machine conducts three-dimensional detection of the ball in a three-dimensional space. Multi-point sampling: 32 points for 8-segment type balls, 40 points for 18-segment type balls, and 30 points for 32-segment type balls. The sampled data is processed by the PLC to calculate the average circumference and the maximum radius difference of the ball. The roundness is represented by the maximum radius difference of the sample.
Relevant parameters
| Item | Parameter Range |
|---|---|
| Conforms to Standard | GB/T 14625.1 |
| Allowable Error of Three Coordinate Axes Intersecting at One Point | 0.02 mm |
| Control Mode | PLC + HMI |
| Probe Repeatability | 0.02 mm |
| Indication Accuracy | 0.001 mm |
| Ball Clamping Force | < 7 N |
| Overall Dimensions | 830×830×940 mm |
| Weight | Approx. 120 kg |
| Power Supply | AC 220 V, 5 A, 300 W |
| Air Supply | 0.5 MPa |
| Measuring Accuracy | ±0.01 mm |
| Ball Diameter Range | 150~700 mm (customizable) |
| Scanning Speed | ≤ 30 seconds per ball |
| Temperature Control Range (Optional) | -20℃ ~ +50℃ (accuracy ±0.5℃) |
Core Functions
3D True Roundness Scanning
✦ Fully automatic multi-point measurement: Laser scanning accuracy ±0.01mm, measurement point density ≥1000 points/sphere, detect the maximum diameter deviation of the sphere (FIFA standard ≤1.5mm).
✦ Dynamic rotation test: The sphere rotates automatically (0~360°), the scanner tracks synchronously, generating a 3D spherical deviation cloud map, and locating concave and convex defect areas (accuracy ±0.05mm).
Intelligent Environmental Coupling (Optional)
✦ Temperature and humidity cycle test: Temperature -20°C~+50°C, humidity 10%~95% RH, verify the impact of thermal expansion and contraction on the roundness of the sphere (dimensional change ≤0.3%).
✦ Inflation and deflation cycle test: Pressure range 0~20kPa (accuracy ±0.1kPa), simulate the pressure changes during use, and detect the deformation recovery rate of the sphere (≥98% is excellent).
Intelligent Data Analysis:
Full-dimensional parameter output:
✦ True roundness (Sphericity), maximum diameter difference, least squares sphere deviation (LSCI), surface waviness (Waviness).
Generate spherical heat maps with D visualization software, compare with international event standards (e.g., FIFA Pro sphere roundness ≤1.0mm).
Automatic sorting and reporting: One-click export PDF/Excel reports (including deviation distribution, statistical CPK values), support MES system integration and production batch traceability.
Technical Highlights
1. High-Precision Scanning System:
✦ High-resolution laser sensor (0.1μm resolution) combined with a six-axis robotic arm, providing 360° seamless scanning, supporting various-sized spheres such as footballs (diameter 218~221mm) and basketballs (diameter 238~242mm).
✦ Modular fixtures for irregular-shaped balls (e.g., rugby balls, water polo balls), with adjustable clamping force from 1 to 50N, ensuring no deformation during testing.
2. Intelligent Calibration and Compensation: Automatic temperature compensation algorithm to eliminate the influence of environmental temperature drift; AI self-learning function optimizes measurement paths, increasing efficiency by 50%.
3. Safety and Energy Efficiency Design: Anti-hand-squeezing sensor, emergency stop button, and low-power consumption design (standby < 10W), meeting ISO 13849 (PLc level) safety standards.
Equipment Advantages
1. High Efficiency and Precision: The single ball testing cycle is ≤ 30 seconds, with data repeatability error < ±0.02mm. It supports dual-station parallel testing (efficiency increased by 300%).
2. Flexible Adaptability:
✦ Ball diameter range: 150 - 700mm (can be extended to beach balls/medical rehabilitation balls), true roundness measurement range: 0.01 - 5mm.
✦ Optional surface friction coefficient testing (0.1 - 1.0μ), dynamic balance detection (eccentricity ≤ 0.1g·cm).
3. Cost Optimization: Replaces manual caliper spot checks, improving quality inspection efficiency by 20 times, with a defective product interception rate of ≥ 99.5%.
4. Standard Compliance: Built-in 20+ testing programs including FIFA, NBA, GB, etc., and can generate multi-language certification reports in Chinese, English, and Japanese with one click.
Application scenarios and industry value
Production quality inspection: 100% full inspection of balls before leaving the factory to screen out those with excessive roundness deviation (such as ≤1.0mm for FIFA Pro-level footballs) and surface depressions.
Material research and development:
✦ Compare the molding stability of materials such as PU, TPU, and natural leather, and optimize the splicing process (such as heat bonding vs. hand sewing).
✦ Verify the impact of the inner bladder structure on the true roundness of the ball.
Event certification: FIFA Quality Pro football certification, NBA official ball admission testing.
After-sales analysis: Reproduce and improve the process for user complaints about ball eccentricity and unstable bouncing.
The ball roundness testing machine, through 3D laser scanning and intelligent data analysis, upgrades the control of the geometric accuracy of the ball from "empirical spot checks" to "scientific full inspection", helping enterprises overcome the problem of product consistency. Whether it is to meet the strict competition standards of FIFA Pro or to endow mass-produced balls with ultimate symmetry, this equipment can serve as a core tool for production and research and development, safeguarding the competitive fairness of sports equipment and the brand's competitiveness.
