Large Lead Trapezoidal Screw

Product Materials

Our Large Lead Trapezoidal Screws are manufactured with high-performance materials tailored to their high-speed, high-load working characteristics, all passing strict raw material inspection and traceability management.

① Core Materials: The screw body mainly adopts S45C carbon steel (after precision tempering treatment) for general industrial scenarios, ensuring excellent load-bearing capacity and machinability; for high-corrosion or high-precision applications, we provide 304/316 stainless steel options.

② Nut Materials: Targeting the high sliding velocity and friction issues of large lead designs, we match specialized nut materials: engineering plastics (PEEK, PTFE) for low friction and dry lubrication needs, special-grade bronze (customized alloy ratio) for high-load and wear-resistant scenarios, effectively reducing wear and extending the service life of the screw-nut assembly.

③ Special Material Options: For extreme working conditions (high temperature, strong corrosion), we offer customized materials such as high-temperature alloy steel and corrosion-resistant composite materials, with complete material inspection reports to meet international industrial standards.

Product Advantages

① High-Speed Linear Transmission Efficiency: With a significantly increased lead (axial distance per single rotation), the product can quickly convert rotational motion into linear motion, perfectly adapting to high-speed positioning, automation systems and material handling equipment, greatly improving production efficiency.

② Excellent Load-Bearing Capacity: While optimizing for high speed, it retains the 30° trapezoidal thread’s inherent load-bearing advantage, ensuring stable operation under heavy-load working conditions without deformation or failure.

③ Targeted Wear & Friction Optimization: Equipped with specialized surface treatments (nitriding, PTFE coating) and matching nut materials, it effectively solves the wear and friction problems caused by high sliding velocities, ensuring long-term stable performance at high speeds.

④ Flexible Customization: In addition to the standard specifications in the parameter table, we support customized design of lead, major diameter, pitch, thread start number and end machining, adapting to the personalized needs of different industrial linear motion scenarios.

⑤ Cost-Effective Solution: Compared with similar products on the market, our products achieve a balance of high speed, load-bearing and cost, avoiding the high cost of ball screws while meeting the high-speed transmission needs of most industrial equipment.

Product Performance

The high-velocity performance is a critical advantage in automation systems, rapid positioning stages, and material handling equipment. The inherent self-locking property, a key characteristic of standard trapezoidal screws, is significantly diminished or entirely lost in large lead designs. Consequently, the integration of advanced surface treatments becomes even more critical for Large Lead Screws. In addition, a well-chosen nut material is important for the operation system. Engineering plastic and neo material such as PEEK, bronze with specific code, are getting more attention to the whole unit in different systems. The higher sliding velocities can lead to increased wear and friction. Protective coatings such as nitriding for extreme wear resistance or PTFE coating for decreased friction and dry lubrication are often engineered to match these demanding operational circumstance, ensuring longevity and consistent performance of this Large Lead Trapezoidal Screw at high speeds.

Why Choose Us

① Professional Large Lead Screw R&D & Production Experience: With over 12 years of professional experience in trapezoidal screw manufacturing, we have accumulated rich technology and process experience in large lead screw production, mastering the core technology of thread forming and high-speed performance optimization, and can solve various complex application problems for buyers.

② Advanced Production & Testing Capabilities: Equipped with 10 professional production lines, including advanced thread rolling machines and high-precision CNC lathes, which can accurately control the lead accuracy and thread profile of large lead screws; professional testing equipment (lead gauge, friction tester) ensures that each product meets the high-speed and load-bearing performance requirements.

③ Strict Quality Control System: Certified by ISO 9001 quality management system, with a 6-person professional QC team, implementing full-process quality control from raw material selection, production processing to finished product delivery; self-developed ERP system tracks the entire production and quality process, ensuring product consistency.

④ Perfect One-Stop Service: Provide pre-sales technical consultation (customized scheme design, material and surface treatment selection guidance), in-sales sample confirmation and production progress feedback, and after-sales technical support (installation guidance, maintenance advice); support OEM services, and can meet the personalized branding and specification needs of global buyers.

⑤ Rich Market Verification: Serve more than 5,000 domestic and foreign customers, with over 80,000 pieces of overseas orders completed in the past 3 years, and the products have been widely recognized in automation, material handling and other industries, with a good market reputation.

FAQs

1. Do you have custom services?

Yes, we support full customization. You only need to provide detailed requirements (including major diameter, lead, pitch, thread start number, working load and speed, application scenario), our professional engineering team will design a suitable scheme, produce samples for your test, and carry out bulk production after sample confirmation.

2. What surface treatment options do you provide for Large Lead Trapezoidal Screws, and how to choose the right one?

We provide targeted surface treatments: nitriding treatment for extreme wear-resistant needs (suitable for high-load, high-speed scenarios), PTFE coating for low friction and dry lubrication needs (suitable for no-lubrication or low-pollution scenarios), and zinc plating for general corrosion-resistant needs. Our technical team will recommend the most suitable surface treatment according to your application scenario and working conditions.

3. What is the service life of the Trapezoidal Screws under high-speed and heavy-load working conditions?

The service life depends on the specific working conditions (speed, load, environment, lubrication). Under standard working conditions (normal lubrication, ambient temperature 0-40℃, rated load), the service life can reach 8,000-12,000 working hours; for customized products with special materials and surface treatments, the service life can be extended by 30%-50%, and we provide a quality guarantee period of 12 months.

4. How do you ensure the lead accuracy, and can you provide accuracy test reports?

We use advanced thread rolling machines and high-precision CNC lathes for production, and each finished product is tested with professional lead gauges and precision measuring instruments to ensure that the lead accuracy meets ISO standards. We can provide detailed accuracy test reports (including lead error, thread profile accuracy) according to your requirements, ensuring product quality is traceable and compliant.