| Customization: | Available |
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| After-sales Service: | Permanent |
| Warranty: | 1 Year |
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The SC-W300 Computer Controlled Metal Material Tensile Relaxation Testing Machine is primarily used for testing the tensile stress relaxation mechanical properties of metal materials (such as steel bars and steel wires) or metal products like fasteners at room temperature. The product meets the requirements of the GB/T 10120-2013 standard "Metallic Materials-Method of Test for Tensile Stress Relaxation" and the ASTM E328-2013 standard "Test Methods for Stress Relaxation for Materials and Structures" for conducting tensile stress relaxation tests on steel at room temperature.
The main machine features a horizontal structure, consisting of a reaction frame formed by a front rigid plate, a rear rigid plate, and four columns. Two additional U-shaped rigid plates are incorporated in the middle, enhancing the structural rigidity. This design ensures that the testing force aligns with the sample's axis, thereby eliminating issues like bending or twisting of the specimen. The power section is driven by a servo motor that transmits motion through a synchronous belt, which drives a cycloidal pinwheel reducer and a precision ball screw, resulting in smooth and noise-free test force application. The machine utilizes a high-precision spoke-type load sensor for force measurement, ensuring high accuracy and reliable testing results.
Testing Machine Standard: GB/T 16491-2008 Electronic Universal Testing Machines
Applicable Testing Method Standards:
GB/T 10120-2013 Method for Metal Stress Relaxation Testing
GB/T 21839-2008 Testing Methods for Steel Used in Prestressed Concrete
ASTM E328-2013
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Maximum Load (kN): 300 Testing Machine Grade: Grade 0.5 Force Measurement Range: 2% to 100% FS (full-scale, no ranges) Relative Error of Force Indication: ±0.5% Force Resolution: 1/±500000 FS Load Sensor Creep: 30 minutes, ≤0.02% FS Deformation Measurement Range (mm): 0 to 15 (gauge length recommended to be 1000 mm) Relative Error of Deformation Indication: ±0.5% Displacement Resolution (μm): 0.01 Relative Error of Loading Head Displacement Indication: ±0.5% Loading Head Speed Adjustment Range (mm/min): 0.001 to 20 Force Loading Speed Range (kN/s): 0.1 to 10 Relative Error of Load Speed Control: ±0.5% Temperature Measurement Resolution (ºC): 0.1 Maximum Effective Stroke of Loading Head (mm): 100 Test Space (Maximum Distance Between Grips, mm): 1400 Sample Dimensions: Steel strand diameter: Φ12.7 mm, Φ15.2 mm; length ≥2.4 m Power: 1.5 kW Power Supply: AC220V±10%/50Hz Main Machine Weight: 1000 kg Main Machine Dimensions (mm): 2480×560×1100 |
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Standard Configuration
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Control and Testing:The equipment uses closed-loop control and program control for the testing process, allowing for seamless switching between various control modes. The computer automatically controls the testing process, including data acquisition, display, and storage (key parameters: test force, relaxation force, relaxation rate, or logarithmic relaxation rate). After the test is complete, the software can analyze and process the data, printing out the test curves and reports required by the user. The software can generate various test curves as required by the standards (e.g., residual test force or logarithmic residual force, relaxation force or logarithmic relaxation force, relaxation rate or logarithmic relaxation rate, temperature, etc., over time or logarithmic time). User Interface and Data Handling: The computer software is developed based on Windows Win7/Win10/Win11 platforms, featuring a user-friendly interface. Test force and deformation are displayed using configurable instruments, making the data very prominent. It includes an embedded database for easy historical data tracing and networking requirements. Report templates simplify user operation, requiring only minimal training to master. The software is highly encapsulated, easy to operate, and fully functional. A standard test program allows the testing system to automatically apply 70% or 80% of the nominal maximum force to the steel strand within 3-5 minutes, maintain it for 1 minute, and then automatically start recording test data, stopping the test automatically after the set time. The correlation coefficient between the test curve and the theoretical fitted curve exceeds 99%, enabling the computer to extrapolate 1000-hour test results from data within 100 hours or conduct continuous 1000-hour tests, thus shortening the actual test time. |
As a leading manufacturer of testing equipment with over 20 years of industry expertise, our NAKE Group is supported by a dedicated team of more than 20 R&D specialists, over 50 highly skilled production personnel, and a professional after-sales service team of 10+ members. Our state-of-the-art manufacturing and office facilities span over 4,000 square meters, and we are proudly certified as a National High-Tech Enterprise in China.
With an ISO 9001:2015-certified quality management system, we ensure stringent control over every stage of production. By sourcing approximately 5,000 tons of raw materials annually and maintaining in-house machining and assembly capabilities, we achieve a 3% manufacturing cost advantage over industry peers while upholding superior product consistency.
Over the past five years, we have consistently delivered an on-time shipment rate exceeding 98.2%, a product failure rate below 0.3%, and a rework rate under 0.28%, underscoring our commitment to precision, reliability, and quality excellence. Additionally, we provide OEM manufacturing services for over 20 Chinese exporters, producing approximately 600 units of mechanical testing equipment annually, further reinforcing our leadership in the field.
Our brand, NAKE Test Equipment, is widely recognized across China, with products exported to more than 30 countries worldwide. As a direct manufacturer with independent R&D and production capabilities, we offer significant advantages over distributors and intermediaries in terms of technical expertise, product customization, and cost efficiency
After - Sales Service introduction:
1. One year product warranty
2. Permanent free software updates
3. Permanent maintenance services
4. Remote video guidance
1. Is your company a manufacturer or a trading company?
We are a professional manufacturer of materials testing equipment with independent R&D, production, and assembly capabilities. All core components are machined and assembled in-house, ensuring superior quality control, production efficiency, and cost management. Compared to distributors or intermediaries, we offer greater technical expertise, product customization, and competitive pricing.
2. How do you ensure product quality?
We implement strict quality control measures:
ISO 9001:2015-certified quality management system ensures process stability.
In-house machining and assembly of key components guarantee consistency and reliability.
Over the past five years, our product failure rate has remained below 0.3%, with a rework rate under 0.28%, significantly outperforming industry averages.
3. What is your typical lead time?
With an efficient production system, we have achieved an on-time delivery rate exceeding 98.2% over the past five years. Lead times vary based on order volume and product type:
Standard models: 15-30 days
Customized products: Lead time depends on design complexity
4. Do you offer OEM or ODM services?
Yes, we provide OEM manufacturing services for 20+ Chinese exporters, producing approximately 600 units of testing equipment annually. We offer custom branding, software interface modifications, and functional upgrades to meet client requirements while ensuring compliance with international standards.
5. What industries are your testing machines used in?
Our testing equipment is widely applied in various industries, including:
Metals & composites
Rubber & plastics
Construction & civil engineering
Aerospace & automotive manufacturing
Research institutes & university laboratories
6. What after-sales services do you provide?
We offer comprehensive after-sales support, including:
Remote technical assistance: Installation guidance, troubleshooting, and maintenance support via phone, email, or video.
On-site services (available in select regions): Professional engineers can provide installation training and repair services if needed.
Spare parts supply: Long-term availability of original factory parts to ensure stable equipment operation.
Equipment upgrades & software updates: Functional upgrades and software optimizations as per customer needs.
7. How can I request a quote or place an order?
You can contact us through:
Phone/Email Inquiry: Provide your specific requirements, and our sales team will respond within 24 hours.
Custom Solutions: If you have special testing needs, our engineering team can offer tailored solutions and detailed quotations.
8. What are your competitive advantages over industry peers?
Full in-house production for superior quality control: Key components are machined in-house, ensuring consistency and durability.
Manufacturing cost advantage: Our optimized supply chain results in a 3% lower production cost compared to industry averages, providing a cost-effective solution for customers.
Exceptional delivery performance: 98.2%+ on-time delivery rate, ensuring smooth project execution.
Global market experience: Products exported to 30+ countries, meeting multiple international standards.
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