En 
English
简体中文
Heavy Duty
Industrial Timing Belts
Engineered for extreme loads, high torque, and continuous operation in the most demanding industrial environments.
High-Torque · Aramid Reinforced
Temperature Range -40°C ~ +120°C
Related Products
Explore our range of heavy-duty timing belts designed for various industrial needs.
Heavy Duty Industrial Timing Belts — Engineered for Excellence
Our heavy-duty industrial timing belts are the backbone of modern power transmission systems, delivering precise synchronization, high torque capacity, and exceptional durability in the most challenging operating environments. Designed for continuous duty cycles, these belts are trusted by engineers worldwide in industries ranging from automotive manufacturing to heavy machinery, packaging, and material handling.
Material & Construction
Our timing belts utilize advanced polyurethane and premium neoprene compounds, reinforced with either aramid fiber tension cords or high-strength steel wire. Aramid fiber offers an excellent strength-to-weight ratio, minimal stretch, and outstanding fatigue resistance, making it ideal for high-speed, high-load applications. Steel-reinforced belts provide ultimate tensile strength for the heaviest loads, such as in mining or agricultural equipment. The tooth profile is precision-molded to ensure perfect meshing with pulleys, reducing backlash and vibration.
Design & Performance
Featuring advanced curvilinear tooth profiles (HTD, STD, and RPP), our belts distribute stress evenly across the tooth root, minimizing wear and preventing tooth shear under peak loads. The specially formulated backing material resists oil, grease, ozone, and abrasion, extending service life even in harsh chemical or dusty environments. Temperature tolerance ranges from -40°C to +120°C, ensuring reliable performance in cold storage facilities or hot production lines.
Manufacturing Excellence
Every belt is manufactured under strict ISO 9001 quality control protocols. Our proprietary curing process ensures uniform material density and tooth dimensional accuracy, resulting in consistent performance and extended belt life. Rigorous testing—including dynamic load testing, thermal cycling, and fatigue analysis—guarantees that each belt meets or exceeds industry standards (DIN 7721, RMA IP-24).
Customization & Flexibility
We understand that no two applications are identical. We offer extensive customization options: custom lengths, widths, tooth profiles, and even special materials for unique requirements. Whether you need a belt for a compact robotic arm or a massive conveyor system, our engineering team can design a solution that optimizes your drive efficiency and minimizes downtime.
Applications Across Industries
Our heavy-duty timing belts are deployed in:
- Automation & Robotics – precise positioning and synchronous motion.
- Material Handling – conveyors, elevators, and sorters.
- Packaging Machinery – high-speed filling, wrapping, and labeling.
- Agriculture – harvesters, balers, and seeders.
- Textile & Woodworking – spinning, weaving, sawing, and planing.
- Printing & Paper – register drives and web handling.
With a global service network and decades of expertise, we deliver not just belts, but complete drive solutions that enhance productivity and reduce total cost of ownership. Choose reliability, performance, and partnership.
Built for Performance
Every belt is designed to deliver exceptional durability, precision, and efficiency across a wide range of heavy-duty applications.
High Tensile Strength
Steel or aramid fiber tension members provide outstanding load capacity and minimal stretch.
Wear Resistance
Advanced polyurethane compound with special additives for superior abrasion and fatigue life.
Precision Timing
Maintain exact synchronous drive with low backlash and high positional accuracy.
Extreme Environment
Resistant to oil, grease, ozone, and wide temperature fluctuations.
Core Technical Advantages
Beyond standard specifications, our belts incorporate engineering innovations that deliver superior performance.
Optimized Tooth Profile
Curvilinear teeth (HTD/RPP) reduce stress concentration, provide higher torque transmission, and minimize noise and vibration.
Advanced Compound Formulation
Our proprietary polyurethane blend offers exceptional resistance to ozone, UV, and industrial chemicals, ensuring long-term stability.
Precision Manufacturing
Computer-controlled molding and grinding achieve tooth pitch accuracy within ±0.1mm, ensuring perfect meshing with pulleys.
Dynamic Load Testing
Each belt type undergoes rigorous dynamometer testing to validate load capacity, fatigue life, and temperature performance.
Technical Specifications
Standard and heavy-duty series — select the right belt for your drive system.
| Model | Pitch (mm) | Width (mm) | Tensile Member | Max Load (N) | Temp. Range |
|---|---|---|---|---|---|
| HD-8000 Popular | 14.0 | 50 | Aramid | 8,200 | -40 ~ +120 |
| HD-8000W | 14.0 | 70 | Steel | 11,500 | -30 ~ +110 |
| HD-9000 | 20.0 | 60 | Aramid | 14,200 | -40 ~ +120 |
| HD-9000X Heavy | 20.0 | 90 | Steel | 18,600 | -30 ~ +110 |
| HD-10000 | 25.4 | 80 | Aramid | 22,000 | -40 ~ +120 |
* Custom widths and materials available upon request.
Performance Data
Visual insights into torque, load capacity, and temperature characteristics.
Maximum Load Capacity (N)
Torque vs. Speed (HD-9000)
Service Life vs. Temperature
Load vs. Belt Width (HD-9000)
About Us
The company is China Heavy Duty Industrial Timing Belts Manufacturers and Wholesale Heavy Duty Industrial Timing Belts Factory, and was established in 1992, specializing in the production of rubber timing belts, V-ribbed belts, open belts and timing pulleys. The company now has the factory covering an area of 32,000 square meters , with an annual output of 120 million pieces and an output value of 200 million yuan. The company is a national high-tech enterprise, the drafting unit of national standards and industry standards, and has passed ISO9001, ISO14001 and ISO45001 system certification.
Contact Us
-
1992
Company was established in
-
32000
Factory covers an area(㎡)
-
6000+
Number of Molds
-
120 Million
Annual production capacity
Why Choose Us
Decades of engineering excellence in power transmission.
- In-house R&D with 40+ years of belt technology expertise
- Strict quality control — every belt tested to ISO standards
- Custom solutions: length, width, and material options
- Global supply chain with fast lead times
Field reliability rate
Based on 5-year performance data across 12,000+ installations worldwide.
Key Applications
Trusted by engineers across industries for reliable, maintenance-free power transmission.
Automation
Robotics & assembly lines
Material Handling
Conveyors & elevators
Packaging
High-speed wrapping & filling
Agriculture
Harvesters & balers
Textile
Spinning & weaving machinery
Woodworking
Saws & planers
Product Application What We Offer
Industry Case Studies
Real-world applications demonstrating the reliability and performance of our belts.
Automotive Assembly Line
Replaced V-belts with synchronous belts, reducing downtime by 35% and improving torque accuracy for robotic arms.
+40% service lifeHigh-Speed Packaging
Continuous operation at 2,200 RPM with minimal maintenance, handling high-inertia loads in a food-grade environment.
15,000+ hours runtimeAgricultural Harvester
Withstands extreme dust, moisture, and shock loads, providing reliable power transmission for heavy harvesting equipment.
98% uptimeMaterial Handling Conveyor
Long-span conveyor system with low elongation and precise synchronization, reducing product damage and energy consumption.
12% energy savingsQuality & Certifications
Our commitment to quality is backed by internationally recognized standards and rigorous in-house testing.
Our Certificate
Intellectual Property Certificate
Certificate of integration of industrialization and industrialization
National Product and Service Quality Integrity Demonstration Enterprise
National quality inspection stable qualified products
National rubber transmission belt industry quality brand
Zhejiang Province Credit Management Demonstration Enterprise
International Standard Machinery Industry Third Prize
ISO9001 System Certification
ISO45001 System Certification
ISO14001 System Certification
Second prize
Industry advanced
Custom Solutions
We offer tailored belts to meet your unique application requirements. Contact our engineering team for a quote.
Custom Lengths
Any length from 200mm to 20,000mm
Variable Widths
From 10mm up to 200mm
Special Materials
FDA-approved, antistatic, flame-retardant
Tooth Profiles
HTD, STD, RPP, AT, and custom
Color Options
Black, green, blue, or custom
Banding & Fabric
Nylon fabric top for reduced friction
Installation & Maintenance Tips
Proper installation and routine maintenance maximize belt life and drive reliability.
Installation Best Practices
- Ensure pulleys are aligned within 0.5° to prevent edge wear.
- Use proper tensioning tools; avoid over-tensioning which reduces bearing life.
- Check for pulley damage or debris before mounting.
- Never force a belt onto pulleys; use a tensioner or adjust center distance.
- Inspect for proper tooth engagement — belt should not ride on the pulley flange.
Maintenance & Inspection
- Periodically check tension with a sonic tension meter.
- Look for signs of wear: cracking, glazing, or missing teeth.
- Keep belt and pulleys clean; remove oil, dust, and abrasive particles.
- Replace belts at first sign of significant wear or after recommended service hours.
- Record belt life data to predict replacement intervals.
Frequently Asked Questions
Find answers to the most common questions about our heavy-duty timing belts.
Do you have a question? Feel free to contact!
Tel: +86-0574-62498188 62497298
Fax: +86-0574-62497297
E-mail: 
Add: No. 65, Middle Jinniu Road, Moushan Town, Yuyao City, Zhejiang Province, ChinaCopyright © Ningbo GUL TZ Rubber Belt Co., Ltd. All rights reserved.
Wholesale Heavy Duty Industrial Timing Belts Manufacturers
