Product Overview
The GT-PNMM-630 Pipe Notch Milling Machine is a professional instrument designed for creating precise notches in plastic pipes, specifically tailored for the Slow Crack Growth (SCG) Resistance test. As a core product from Golden Time Technology Development Limited (brand: GT-TEST), it plays a critical role in ensuring the reliability of plastic pipes, particularly polyethylene (PE) gas pipes, across research, production, and quality control processes.
Core Application
This machine is widely utilized in industries involved in plastic pipe manufacturing, testing laboratories, and R&D centers. Its primary function is to prepare standardized notches on pipes, which is essential for conducting accurate environmental stress cracking tests—a key step in evaluating the long-term durability and crack resistance of pipes, especially those used in gas and water conveyance systems.
Compliance with Standards
The GT-PNMM-630 strictly adheres to ISO 13479, the international standard titled “Polyolefin pipes for the conveyance of fluids—Resistance to crack propagation—Test method for slow crack growth on notched pipes (notch test)”. This compliance ensures that test results are globally recognized and comparable, making it a trusted choice for businesses aiming to meet international quality benchmarks.
Product Specifications
Parameter | Details |
Pipe Diameter Range | 63mm — 630mm |
Notch Depth | 19% of pipe wall thickness (automatically adjusted based on pipe specifications) |
Notch Length | Dependent on pipe diameter (customizable to meet specific test requirements) |
Feeding Accuracy | ±0.1mm (ensures consistent notch depth across different pipe sections) |
Cutting Knife Rotation Rate | 700r/min (optimized for smooth, burr-free cutting) |
Power Supply | 380V 50Hz 5A, 180W (stable performance for continuous operation) |
Design Features
The GT-PNMM-630 integrates advanced engineering to deliver precision and ease of use, with three key design highlights:
Stable Fixation System
The machine employs a dual fixation method—hoisting and mandrel shaft clamping—to secure pipes firmly during the notching process. This design ensures the cutting tool remains parallel to the pipe’s inner wall, eliminating discrepancies in notch depth caused by pipe ellipticity or uneven wall thickness. Whether processing standard or slightly deformed pipes, the system guarantees uniform notch quality.
High-Precision Cutting Tool
Equipped with a 60° V-shaped carbide machining tool, the machine produces clean, smooth notches with minimal burrs. Carbide’s high hardness and wear resistance ensure long-term cutting precision, reducing the need for frequent tool replacements and lowering maintenance costs. This feature is critical for maintaining test accuracy, as rough or uneven notches can skew SCG test results.
User-Friendly Modular Design
The entire system adopts a modular structure, with the milling knife positioned directly above the test piece. This layout provides clear visibility of the cutting process, allowing operators to monitor notch formation in real time and make adjustments if needed. The modular design also simplifies maintenance—components can be easily accessed or replaced, minimizing downtime and enhancing operational efficiency.
Custom Service
Golden Time Technology Development Limited offers comprehensive custom services to meet diverse customer needs, ensuring the GT-PNMM-630 integrates seamlessly into specific workflows:
OEM & Customization
We provide OEM services to tailor the machine to unique requirements, such as adjusting the pipe diameter range, modifying notch parameters, or adding brand-specific features (e.g., custom control panels or logos). This flexibility makes the machine suitable for specialized industries or non-standard testing protocols.
Technical Consultation
With expertise in plastic pipe testing standards (including ISO 13479, ASTM, and GB), our technical team offers personalized consultation to help customers select the right notching parameters, interpret test results, or integrate the machine into existing quality control systems. This support is invaluable for businesses new to SCG testing or expanding their testing capabilities.
