3600AX Brake Drum 16.5" x 7" for heavy-duty trucks
Premium heavy-duty brake drum, OEM interchange 3600AX / 66864B, precision engineered for Class 7–8 commercial trucks, trailers and fleets. Built for extreme loads, consistent braking and long service life.
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Item |
Details |
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Model |
3600AX |
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Product Name |
Heavy-Duty Brake Drum |
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Size |
16.5" × 7" |
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Application |
Heavy-duty trucks, semi-trailers, buses, fleet vehicles |
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Material |
High-strength gray cast iron |
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Standard |
OEM equivalent, qualified for commercial use |
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Key Features |
High heat dissipation, anti-crack, long service life, stable braking |
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Installation |
Direct bolt-on replacement |
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Customization |
Logo, painting, packaging, OEM/ODM accepted |
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Supply Capacity |
Mass production, fast lead time |
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MOQ |
Negotiable |
Core Performance Highlights
1.Premium High-Density Cast Iron：
- Crafted from high-strength gray cast iron for exceptional rigidity and heat resistance.
- Ensures stable friction coefficients and prevents thermal cracking under extreme loads.
2.Precision Machined for Perfect Balance：
- CNC-machined mating surfaces ensure a precise fit and minimal runout.
- Delivers smooth, vibration-free braking for quiet and safe operation.
3.Optimized Heat Dissipation：
- Designed to quickly dissipate heat generated during heavy braking.
- Reduces brake fade and maintains consistent stopping power, even on long descents.
4.Extended Service Life：
- Resists wear and corrosion, outperforming standard brake drums.
- Ideal for high-mileage, heavy-duty truck and fleet applications.
5. Direct Fit & Easy Installation：
- Precision-machined to exact OEM specifications.
- Direct bolt-on replacement with no modifications required for easy fitment.
6.Reliable for Severe Duty：
- Built to withstand the rigors of Class 7–8 commercial vehicles, trailers, and buses.
- Consistently performs under heavy loads and harsh road conditions.
Production Process
1. Raw Material Preparation & Melting
High-quality gray cast iron with alloying elements (Cr, Mo, Cu) for improved wear resistance and thermal stability.
Strict raw material inspection and proportioning.
Melting in intermediate frequency induction furnace at 1673–1743 K (1400–1470 °C).
On-site composition analysis, degassing and slag removal to ensure molten iron purity.
2.Molding & Casting：
Automatic sand molding using dedicated molds for 16.5" × 7" brake drum.
Controlled pouring speed and temperature to avoid shrinkage, porosity and cracks.
Shakeout, riser cutting, and sand blasting for surface cleaning.
3. Heat Treatment：
Stress-relief annealing or normalizing to stabilize dimensions.
Controlled cooling to optimize hardness, strength and thermal fatigue resistance.
4. Precision Machining：
CNC turning of mounting surface, bolt circle, bearing seat and braking surface.
Boring and finishing to meet strict dimensional tolerances for 3600AX standard.
Dynamic balance correction and runout inspection.
5. Quality Inspection：
Dimensional inspection (calipers, micrometers, gauges).
Hardness testing, ultrasonic inspection for internal defects.
Visual and surface finish inspection.
6.Cleaning, Painting & Packaging：
Rust prevention treatment.
High-temperature resistant paint coating.
Protective packaging, labeling and warehousing.
Factory Strength
1. Production Capacity：
Professional production line for heavy-duty truck brake drums
Monthly output: up to 20,000+ units, annual capacity 240,000+ units
Automated molding, melting, machining and heat treatment lines
Stable mass production to ensure on-time delivery
2. Equipment Strength：
Medium-frequency induction melting furnaces
Automatic sand molding & casting equipment
CNC precision lathes & machining centers
Dynamic balancing machines
Hardness testers, ultrasonic flaw detectors, coordinate measuring machines (CMM)
3. Quality Control System：
Full implementation of IATF 16949 quality management system
Raw material incoming inspection
Online process monitoring during casting, heat treatment and machining
100% dimensional inspection & dynamic balance test before packaging
Ultrasonic testing for internal defects
Complete traceability from raw material to finished product
4. Technical Capability：
Professional R&D team for brake drum material & structure optimization
Mature alloy formula for high wear resistance & thermal fatigue resistance
Strictly conforms to OEM standards for 3600AX 16.5"×7" brake drums
Stable performance suitable for long-haul heavy-duty trucks
5. Supply & Service Ability：
Mature supply chain for raw materials and castings
Flexible order quantity: small-batch trial orders & large bulk orders accepted
Professional packaging for sea / land transportation
After-sales service & technical support available
FAQ
1. Is it interchangeable with OEM parts?
Yes, fully interchangeable with standard 3600AX 16.5"×7" brake drums
2. What material is used?
High-strength alloy gray cast iron with excellent heat and wear resistance.
3. What is the service life?
Around 80,000–120,000 km under normal usage and maintenance
4. How to ensure long service life?
Avoid prolonged heavy braking; use matching brake shoes; check and adjust regularly.
5. What quality certifications do you have?
IATF 16949 certified. Each drum passes dimensional, hardness, dynamic balance and ultrasonic testing.
6. What is MOQ and lead time?
Flexible MOQ for trial orders. Bulk orders: 15–30 days after deposit.
7. Packaging & warranty?
Standard export packaging. Warranty against material and casting defects under proper use.
8. Do you support OEM?
Yes, we accept custom logo, brand and packaging.
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