/ Technical Support / By Victory Technical Team (Zhuji Aoke Factory)
As a distributor of heavy-duty truck parts, your reputation depends on selling products that don’t fail on the highway. Whether you are sourcing for a fleet or stocking a retail shelf, technical questions about materials, compliance, and durability are inevitable.
At Victory Technology, we don’t just sell hoses; we manufacture them. Based on 20+ years of production experience in our Zhuji Aoke facility, we have compiled this comprehensive Technical FAQ & Purchasing Guide to help you make informed decisions.
1. The Material Debate: PA12 vs. PU Tubing
Q: What is the difference between PA12 and PU air brake coils? Which one should I choose?
This is the #1 question we receive from international buyers. The difference is critical for safety.
- PA12 (Nylon): The Professional Standard. Polyamide 12 (PA12) is the industry standard for commercial heavy-duty trucks. It is rigid enough to withstand high pressure, yet flexible enough to recoil.
- Compliance: Meets SAE J844 & DOT FMVSS 106 requirements.
- Performance: Withstands extreme temperatures (-40°C to +100°C) and maintains excellent “coil memory” (it retracts tightly after stretching).
- PU (Polyurethane): The Budget Option. PU is softer, more rubber-like, and cheaper. However, standard PU often fails to meet DOT high-pressure burst standards and can sag or deform in hot weather.
🏭 Factory Recommendation: If you supply commercial fleets, we strongly recommend our Virgin PA12 Air Brake Coils. Do not compromise on safety for a small cost saving.
2. Electrical Integrity: 100% Copper vs. CCA
Q: How does Aoke ensure your trailer cables are 100% copper?
In the cable market, CCA (Copper Clad Aluminum) is a common “hidden cost-cutter.” It looks like copper on the outside but is aluminum inside. CCA is brittle, has higher resistance, and overheats easily.
The Victory Guarantee: We use 100% Oxygen-Free Copper for all our 7-Way Trailer Cables.
🧪 How to Test It: Cut one of our wires. Look at the cross-section. You will see a consistent golden/reddish color all the way through. If you cut a competitor’s wire and see a white center, that is CCA—avoid it for heavy-duty braking signals.
3. Weather Resistance: Surviving the Freeze
Q: Will your air lines crack in extreme cold weather (e.g., Canada/Russia)?
No. Cracking happens when manufacturers use cheap, recycled raw materials. Our hoses are engineered for the harshest winters. We formulate our PA12 with premium Cold-Resistant Additives that keep the jacket flexible down to -40°C (-40°F).
- Lab Verified: We conduct Low-Temperature Impact Tests in our Zhuji laboratory. A weight is dropped on a frozen hose to ensure it does not shatter under stress.
4. Why Upgrade to the “3-in-1” System?
Q: Why should I buy the “3-in-1 Integrated Kit” instead of separate lines?
The 3-in-1 Air Power Line is rapidly becoming the standard for modern fleets. Here is the sales argument for your customers:
- Safety First: The spiral wrap creates a clean, single bundle. No more tangled “spaghetti” lines dragging on the deck plate or causing trip hazards.
- Installation Speed: Drivers or mechanics can install one assembly in minutes, versus connecting three separate lines and manually wrapping them.
- Cost-Effective: Buying a pre-assembled kit from our factory is often 15-20% cheaper than sourcing hoses, cables, clamps, and wraps individually.
5. Manufacturing Excellence: The “Dual-Engine” Model
Q: Are you a trading company or a factory?
We operate a unique “Dual-Engine” model designed to give international distributors the best of both worlds:
- 🏭 The Factory (Zhuji Aoke): Located in Zhejiang, this is our production base. It focuses on R&D, extrusion, assembly, and strict ISO/TS16949 quality control.
- 🚢 The Export Center (Victory Tech): Located in Tianjin (a major port city), this team handles logistics, customs, and customer service.
Why this matters to you: You get Factory-Direct Pricing (no middleman markups) combined with Professional Export Service (smooth shipping and communication).
6. Customization & OEM Private Labeling
Q: Can you print our logo on the products?
Yes. Building your brand is important. We offer comprehensive OEM support:
- Laser Printing: Your Logo, Part Number, and DOT specs printed directly on the hose/cable jacket.
- Custom Packaging: Branded color boxes or header cards for retail display.
- Low MOQ: We support growing businesses with MOQs as low as 50-100 sets for custom printing.
7. Quality Control (QC) Process
Q: How do you inspect the quality before shipment?
We don’t leave quality to chance. Every batch undergoes a 3-Step Inspection:
- Raw Material Test: Chemical analysis and density checks before production begins.
- Online Inspection: Automated laser diameter gauges monitor the tubing extrusion in real-time.
- Final Lab Test: Before packaging, we perform Burst Pressure Tests, Leakage Tests, and Recoil Memory Tests.
- Note: A Quality Test Report is available with your shipment upon request.
🚀 Ready to Stock Up?
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