Timing Pulley

HAWEN timing pulley is a mechanical component for timing belt transmission, which realizes precision power transmission through tooth meshing with timing belts. It features high transmission efficiency, low noise and simple maintenance. Our products are widely used in automation equipment, precision machinery, industrial transmission and other fields. We welcome customers to customize products per drawings or visit our factory.

Product Specification

Product Application Fields

HAWEN (Trilon) has been deeply engaged in the machinery industry for more than 20 years. Since 2005, our company has conducted in-depth R&D and production of timing pulleys for home appliance motors, automotive timing pulleys, AGV forklift timing pulleys and various types of timing pulleys. This product can be processed and formed from 45# Carbon Steel, 1215 Free-Cutting Steel and Series 70 Aluminum Alloys. Our products cover a wide range of industries:

1.New Energy and Environmental Protection Equipment: Applied in the photovoltaic industry for tracking systems, cleaning machines and module conveying equipment, ensuring precise positioning and high-efficiency operation of photovoltaic modules.

2.Precision Manufacturing: Meets the demands for high-speed and high-precision transmission in 3C testing equipment and the semiconductor industry, improving equipment reliability.

3.Automation and General Machinery: Commonly used in CNC machine tools, printing machinery, textile equipment, etc., to realize multi-axis synchronous transmission.

Core Advantages: High precision, high energy efficiency and strong environmental adaptability

● Ultra-high transmission precision: The tooth meshing design ensures no slip and a constant transmission ratio, making it suitable for scenarios requiring precision motion control.

● High efficiency & easy maintenance: Transmission efficiency reaches over 98% with remarkable energy-saving effects; it is lubrication-free, reducing maintenance costs.

● Stable and reliable operation: Features excellent shock absorption and damping performance with low noise, ideal for environments with high requirements for quietness and stability.

● Strong adaptability: Supports long-distance transmission, and can adapt to harsh working conditions such as humidity and corrosion through surface treatments (e.g., zinc plating, high-frequency quenching).

Product Application Equipment and Main Customers

The above products are mainly applied to electric motors for automotive transmission and factory assembly line transmission equipment, with core customers including Nidec, Midea, Haier and other renowned enterprises.

Technical Parameters: Iron Timing Pulley

Technical Parameters: Aluminum Alloy Timing Pulley

Core Advantages

We boast strong technical R&D capabilities and high-precision production equipment. In the process of co-designing future products with customers, HAWEN's technologies always explore the optimal solutions and gain customer recognition.

100% online automatic quality control & high-precision manufacturing

Source control: Strictly control the consistency of raw materials from the procurement stage to ensure stable material performance.✅ Precision machining: Adopt high-precision equipment for automated processing to guarantee product dimensional accuracy (e.g., inner bore tolerance ≤0.01mm).✅ Full-process monitoring: Real-time monitor production parameters through an online detection system to detect and correct deviations in a timely manner.✅ Consistent quality assurance: Eliminate manual operation errors to ensure stable performance of each product.✅ High qualification rate: The production qualification rate is controlled at 99.99%, with a 100% ex-factory qualification rate.Efficiency improvement: Automated processes reduce manual intervention and lower production costs.

Strict environmental control throughout the whole process

Eco-friendly raw materials: Use 45# Carbon Steel to reduce hazardous substances, complying with eco-friendly material standards.✅ Surface treatment: Adopt a fully automatic black oxidation process to avoid contamination from manual contact, enhance corrosion resistance and reduce waste generation.✅ International environmental certifications: All products have passed ROHS, REACH and other international environmental certifications to ensure no hazardous substances are contained.✅ Green production process: Automated production lines reduce energy consumption and waste generation with no manual contact throughout the process. Through fully automatic online testing equipment, every product undergoes a full inspection of dimensions, geometric tolerances and surface defects before ex-factory to ensure batch consistency.

We have long-term supporting cooperation with well-known domestic and foreign motor manufacturers and won extensive market recognition. With 20 years of technical accumulation, we continuously optimize material utilization and manufacturing processes. Our products have passed ISO9001 and IATF16949 quality system certifications, ensuring full traceability from raw material warehousing to finished product delivery.

yuqnaEfficient R&D team: Fast response speed, saving customers' development costs and time; we customize special-shaped designs tailored to the requirements of customers' industrial systems.

Strong production capacity: We have 120 sets of high-precision CNC equipment and one fully automatic black oxidation production line, with a monthly production capacity of 500,000 pieces. The current monthly sales volume is about 300,000-400,000 pieces, with a surplus monthly capacity of 40%-60%.

We are guided by the ultimate market demand, focusing on:

Efficiency improvement and cost reduction

Low noise and high qualification rate

Environmental protection

● Greater flexibility in design changes

● High efficiency and speed in the decision-making process

● Short procurement lead time for raw materials and various accessories: Located in Zhejiang Province, the "hometown of manufacturing in China", we have a well-established and rich supplier supply chain.

● HAWEN's reliable, high-efficiency and high-quality solutions enable all customers to avoid detours—once they choose us, they will be reluctant to switch to other suppliers.

● Choosing HAWEN means reducing customers' development costs, testing costs, manufacturing costs and after-sales service costs.

Material Selection

45# Carbon Steel

45# Carbon Steel is a high-quality carbon structural steel with a carbon content of approximately 0.42% to 0.50%, belonging to the medium carbon steel category. Its material density is 7.85 g/cm³; its chemical composition includes 0.50%-0.80% manganese, 0.17%-0.37% silicon, with strictly controlled impurity elements such as phosphorus and sulfur.

Mechanical Properties & Heat Treatment: It has excellent comprehensive mechanical properties, with a tensile strength of not less than 600 MPa, a yield strength of not less than 355 MPa, an elongation of not less than 16%, and a reduction of area of not less than 40%. Due to its poor hardenability, it is prone to cracking during water quenching and has average weldability—preheating before welding and post-weld annealing are required to relieve stress. Quenching and tempering (quenching plus high-temperature tempering) in heat treatment can optimize its performance: the quenching temperature is usually about 840°C, the tempering temperature is 560-600°C, and the hardness can reach HRC 22-34.

7075 Aluminum Alloy

7075 Aluminum Alloy is an Al-Zn-Mg-Cu ultra-high strength aluminum alloy with zinc as the main alloying element. Its chemical composition includes 5.1%-6.1% zinc, 2.1%-2.9% magnesium, 1.2%-2.0% copper, trace amounts of 0.18%-0.28% chromium and ≤0.20% titanium, with aluminum as the matrix.

Mechanical Properties: Tensile strength ≥560 MPa (up to 572 MPa in T6 temper), yield strength ≥495 MPa, hardness 150 HB (increased to 175-200 HB in T6 temper), and elastic modulus 71 GPa. It maintains excellent toughness in low-temperature environments.

Machinability: It has excellent cutting performance and is suitable for CNC machining, but its weldability is poor—riveting or adhesive bonding is recommended instead. Parameter control is required during plastic working to avoid cracking.

Process Control

Internal bore tolerance control:  A high precision of ±0.005mm is required, demanding extremely high standards for processing equipment and process stability. This precise tolerance range places extremely high demands on the accuracy of processing equipment (such as CNC machine tools), tool quality, and process stability (such as temperature control and vibration suppression). Any slight deviation can lead to product quality problems.

Our company utilizes advanced processes to ensure this:  This is achieved through high-precision measuring instruments (such as coordinate measuring machines, roundness testers, and profile measuring instruments), strict process control (such as SPC statistical process control), and a stable processing environment, ensuring consistency in mass production.

Application value: In precision transmission systems, internal bore tolerance directly affects the fit accuracy between the part and the shaft, impacting transmission efficiency, noise control, and product lifespan. It is a core technical indicator in high-end manufacturing.

• Strict quality control is maintained throughout the production process to ensure product stability and durability during use.

• Material performance matching requires strict control of material hardness and heat treatment processes to improve wear resistance and fatigue strength.

Surface Treatment

Our company has developed a fully automatic blackening production line.

Since the timing pulleys are made of metal and used in harsh environments, rust or corrosion of the parts is inevitable.  Our company has a professional and experienced core R&D team. Through years of practical experience and experimentation, we have developed a specialized surface treatment formula for this product.  We utilize fully automatic surface blackening equipment and a fully automatic drying system, eliminating manual contact throughout the process. This increases the product's corrosion resistance, meets industry standards, reduces the risk of damage from manual handling and collisions, and ensures the stability of the product during use.

In addition, various electroplating treatments such as zinc plating and nickel plating are also available and can be customized according to customer requirements.

Environmental Requirements

All products meet strict environmental requirements in terms of raw materials and surface treatments, and are supported by official certification reports for ROHS and REACH.

R&D & Customization Capabilities

Our professional R&D technical team has 20 years of in-depth industry experience. We can meet customer needs, solve their technical pain points according to their specific requirements and application fields, and customize special-shaped timing pulleys. We warmly welcome customers to provide drawings for customization (including customized products with designated raw materials and surface treatments), and also invite overseas customers to visit our factory.

Synergy from the New Organizational Structure

The synergy brought by the new organizational structure enables HAWEN to meet customer expectations on the basis of effective and in-depth cooperation.

Domestic Customers & Market Share

We have established long-term strategic partnerships with domestic customers such as Sanjiang Electric, LG Tianjin and Nidec, with a cooperative relationship spanning more than a decade. Up to now, our company has achieved a 50% market share of timing pulleys in the Chinese market.