Joint

Yonghang offers professional jointing and thermal welding services for polyurethane (PU) timing belts. By using advanced high-frequency heat-fusion technology, our jointed endless belts join open-ended timing belts into continuous loops of virtually any required length. Designed for material handling, conveying, and automated positioning systems, our welded belts combine structural flexibility with strong tensile resistance.

Unlimited Length FlexibilityOvercomes circumferential length limits of molded belts; can be welded into virtually any custom length (from several hundred millimeters to tens of meters).
High-Strength Heat Fusion
Teeth and belt ends are fused using precise thermal welding, ensuring over 50% of original tension strength—ideal for material transport and linear positioning.
Precise Tooth Pitch Integrity
Modern welding molds ensure zero pitch distortion at the joint, maintaining smooth engagement with pulleys without skipping or vibration.
Custom Core Reinforcements
Internal cords available in Steel, Stainless Steel, and Kevlar (Arimid) to balance flexibility, rust resistance, and high tensile capacity.
Supports Secondary Coatings & Machining
Welded endless belts can be further customized with PU/rubber/felt/silicone backings, CNC perforations, guide rails (K-series), or welded cleats.

Conveying & Material Handling Systems: Long-distance linear conveying lines, automated assembly transfer units, and ceramic/tile sorting lines.
Packaging Machinery: Cartoning equipment, case packers, and automated box transfer conveyors requiring precise positioning.
Automated Logistics & Warehousing: Sorting machinery, cross-belt sorters, and high-speed transfer platforms.
Woodworking & Glass Manufacturing: Transport lines requiring specialized surface coatings (e.g., green fabric PAZ/PAR, felt, or high-friction rubber) fused on jointed belts.

Metric T / AT Series: T5, T10, T20, AT5, AT10, AT20
Imperial / Inch Series: XL, L, H, XH
Curved / HTD Tooth Series: HTD 3M, 5M, 8M, 14M / STD / RPP8M
Special Profiles: Double-sided tooth belts, ATK10 tracking guide belts
Joint Options & Materials:
Joint Type: Finger joint (V-shaped interlock thermal welding).
Materials: Thermoplastic Polyurethane (TPU) with Steel or Kevlar cords.
Optional Fabric: PAZ (Nylon fabric on teeth), PAR (Nylon fabric on back), or PAZ+PAR for noise reduction and low friction.