21 Tooth Heavy Duty Rotary Hanger
Hangzhou Ocean Industry Co., Ltd. is one of the most experienced manufacturers and suppliers of 21 tooth heavy duty rotary hanger in China. Welcome to wholesale customized 21 tooth heavy duty rotary hanger at competitive price from our factory. Good service and quality products are available.
21 Tooth Heavy Duty Rotary Hanger for Industrial Finishing
In the world of high-capacity surface treatment, achieving a perfect finish on large, geometrically complex parts is a significant engineering challenge. Hangzhou Ocean Industry Co., Ltd. addresses this with our 21-Tooth Heavy-Duty Rotary Hanger, a high-resolution indexing solution designed for the most rigorous industrial conveyor system chain environments. Unlike standard hangers that offer limited rotation angles, the 21-tooth configuration provides a micro-indexing step of just 17.1 degrees, ensuring that every recessed corner and internal cavity of a heavy workpiece is exposed to the spray nozzles.
Specifically engineered to integrate with a painting line chain QXG250 conveyor chain, this hanger bridges the gap between massive load capacity and delicate precision. While it maintains the structural integrity required for a heavy duty conveyor chain, its indexing mechanism remains fluid and responsive. By utilizing a fixed hanging plate chain connection, the assembly remains stabilized even when carrying off-center loads through 90-degree turns. For facilities looking to reduce paint waste and eliminate manual touch-up stations, this 21-tooth tool is the definitive upgrade for any high-throughput single guide conveyor chain infrastructure.
Technical Parameter Matrix: Heavy Duty Performance
| Feature | Specification Data | Engineering Note |
|---|---|---|
| Indexing Resolution | 21 Teeth (~17.1° per step) | Highest mechanical resolution available |
| Max Loading Capacity | 50kg - 180kg | Reinforced forged steel frame |
| Chain Compatibility | Painting Line Chain QXG250 Conveyor Chain | Universal heavy-series fitment |
| Material Build | Heat-Treated Alloy Steel | Stabilized for high-temp cycles |
| Bearing System | Dual High-Temp Thrust Bearings | Rated for 250°C continuous use |
| Interface Type | Fixed Hanging Plate Chain | Secure bolt-on or hook-on design |
Advanced Product Features
Micro-Indexing Coverage: The 21-point star wheel ensures near-continuous rotation, providing 360-degree coverage for parts with deep undercuts.
Industrial Strength Chassis: Manufactured by Hangzhou Ocean Industry to resist deformation under high-tensile stress and heavy impact during the indexing "kick."
Zero-Maintenance Bearings: Features sealed, self-lubricating bearing units that prevent paint particulate from clogging the rotation mechanism.
Low Friction Operation: Despite its heavy-duty rating, the hanger requires minimal force to index, reducing the drag on the single guide conveyor chain drive motor.
Passive Automation: Operates solely through mechanical interaction with a kicker bar, requiring no sensors or electrical wiring on the heavy duty conveyor chain.
Engineering Selection & Environmental Suitability
Engineering Selection Advice
When selecting the 21-tooth model for an industrial conveyor system chain, engineers must evaluate the "Rotation Clearance." Because 21 steps require more frequent contact with the kicker bar, the line speed and workpiece pitch must be synchronized to prevent mechanical resonance. Hangzhou Ocean Industry recommends this model specifically for workpieces where film thickness consistency is critical, such as in aerospace components or high-pressure valve housings.
Applicable Environmental Conditions
Temperature Range: Operates reliably from -20°C up to +250°C (Standard curing and degreasing temperatures).
Max Rotation Speed: Supports indexing at conveyor speeds up to 10 m/min.
Atmospheric Resistance: Finished with a specialized chemical-resistant coating to survive the high-acidity environments of painting line pre-treatment tunnels.
Industrial Application Scenarios
Heavy Machinery Manufacturing: Coating large engine blocks and hydraulic cylinders on a heavy duty conveyor chain.
Renewable Energy Sector: Precision painting of wind turbine hub components and solar tracking frames using a painting line chain QXG250 conveyor chain.
Commercial Vehicles: Uniform finishing for truck axle assemblies and large chassis cross-members in an industrial conveyor system chain setup.
Installation & Working Principle
Working Principle
The 21-tooth rotary hanger functions as a passive mechanical indexer. As the single guide conveyor chain moves the hanger past a stationary "kicker bar" mounted on the track, one tooth of the star wheel is engaged, rotating the part by 17.1 degrees. This process repeats with every kicker bar strike, ensuring the part enters the spray booth at a new, mathematically precise angle every time.
Installation Best Practices
Kicker Bar Rigidity: The strike station must be vibration-dampened to ensure the 17.1° rotation of the heavy duty conveyor chain hanger is crisp and accurate.
Safety Tethering: For loads exceeding 100kg, Hangzhou Ocean Industry suggests using a secondary safety cable through the fixed hanging plate chain to prevent accidental drops during high-impact indexing.
Environmental Conditions
Operating Temperature: -10°C to 180°C (depending on coating and lubrication system)
Working Environment: Suitable for spray paint, powder coating, and chemical mist zones
Load Condition: Designed for continuous medium to heavy industrial loads
Line Speed: Optimized for low to medium-speed overhead conveyor systems
Corrosion Resistance: Suitable for humid and chemically exposed painting line environments
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