| Customization: | Available |
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| After-sales Service: | Permanent |
| Warranty: | 1 Year |
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NK Series Screw Torsional Strength Testing MachineI. OverviewThe NK Series Screw Torsional Strength Testing Machine is designed to evaluate the torsional performance of screws. The screw is clamped into a split chuck featuring an internal thread, and torque is manually applied using a torque wrench until the screw fails by torsional fracture.1. Torsional Failure TestIf the applied torque does not meet the specified minimum requirement, the product is deemed non-compliant. Non-compliance may indicate that the screw material is too soft or that the root diameter is insufficient.2. Driving TestIn addition to torsion testing, a driving test can be conducted by screwing the test specimen into a specially prepared test plate with specified hardness, thickness, and hole diameter. If the screw drives through the plate but becomes deformed, the product is also deemed non-compliant. This may indicate inadequate or shallow surface hardening of the screw.3. Driving Torque TestThis test is required for thread-rolled screws only. The test involves driving the screw into the test plate while measuring the peak driving torque. If the torque exceeds the standard specified value (which varies depending on the screw's size and surface treatment), the product is considered non-compliant. Such non-compliance may be caused by insufficient surface lubrication or improper thread formation requiring excessive torque.4. Torsional ResistanceA screw's torsional resistance indicates its ability to withstand being twisted until failure. Most screw standards define minimum torsional strength requirements for self-tapping screws.II. Technical Specifications
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| No. | Item | Quantity | Remarks |
| 1 | Main Machine | 1 unit | |
| 2 | Torque Sockets | 6 pieces | |
| 3 | Square Force Shaft | 1 piece | |
| 4 | Instruction Manual | 1 copy | |
| 5 | Certificate of Conformity | 1 copy |
Discover the profound expertise of NAKE Group, a pioneering force in the testing equipment industry for over two decades. Our esteemed company is fortified by a dynamic team of over 20 innovative R&D specialists, more than 50 adept production experts, and a dedicated after-sales service crew exceeding 10 professionals. Situated in advanced facilities that cover over 4,000 square meters, we proudly stand as a certified National High-Tech Enterprise in China, exemplifying our commitment to excellence and innovation.
Boasting an ISO 9001:2015-certified quality management system, we meticulously oversee every phase of production, ensuring unparalleled precision and quality. With the strategic sourcing of around 5,000 tons of raw materials each year and our robust in-house machining and assembly operations, we achieve a competitive 3% cost advantage over industry competitors while maintaining exceptional product consistency and excellence.
In the past five years, our unwavering dedication to precision and quality has resulted in a remarkable on-time shipment rate exceeding 98.2%, an impressively low product failure rate of less than 0.3%, and a rework rate below 0.28%. We also proudly offer OEM manufacturing services to over 20 Chinese exporters, producing approximately 600 units of mechanical testing equipment annually, which reinforces our position as a leader in the industry.
Our brand, NAKE Test Equipment, commands a prestigious reputation throughout China, with an expansive reach to over 30 countries globally. As a distinguished direct manufacturer with self-sufficient R&D and production capabilities, we provide unmatched advantages over distributors and intermediaries, offering exceptional technical expertise, bespoke product customization, and superior cost efficiency.
After-Sales Service Introduction: At Jinan Nake Test Equipment Co., Ltd., we are committed to providing exceptional after-sales support to enhance your experience with our Fasteners Testing Machine. Our dedicated team is always ready to assist you, ensuring that your machine operates at its best, providing you with maximum productivity and satisfaction for years to come.
1. One Year Product Warranty: We stand behind the quality and durability of our Fasteners Testing Machine with an extensive one-year warranty. This guarantees that any manufacturing defects will be promptly addressed, ensuring you can operate your machine with confidence and peace of mind.
2. Permanent Free Software Updates: Stay ahead with our commitment to continuous improvement. Enjoy lifetime access to free software updates for your Fasteners Testing Machine, ensuring it remains equipped with the latest features and advancements to optimize performance and efficiency.
3. Permanent Maintenance Services: Experience unparalleled support with our ongoing maintenance services. We offer lifetime maintenance to ensure your Fasteners Testing Machine remains in pristine condition, delivering consistent results and prolonging its operational life.
4. Remote Video Guidance: Benefit from our innovative remote video guidance services, designed to offer you expert assistance no matter where you are. Our skilled technicians can provide real-time support to troubleshoot, optimize performance, or guide you through any operational challenges you may encounter with your machine.
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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