Professional Bag Hardware Chains: Cable Chain, Trace Chain & Malle Chain Explained
In bag hardware components, chains serve not only as functional parts but also as crucial design elements. This article provides an in-depth analysis of three professional-grade bag chains – Cable Chain, Trace Chain, and Malle Chain – to help you understand their characteristics, manufacturing processes, and applications.
Cable Chain
- Basic Structure
The cable chain consists of a series of interlocking metal rings resembling a cable structure, with each link shaped like an “∞infinity symbol that interlocks with adjacent links.
Technical Parameters:
– Link length: Typically 5-15mm
– Diameter range: 1.5-6mm
– Opening angle: The Single link can rotate 180°
- Key Features
– Exceptional flexibility: Can bend in any direction
– Anti-twist design: Prevents tangling during use
– Hidden weld points: Uses laser spot welding technology
- Material Options
| Material | Characteristics | Applications |
|———-|—————-|————–|
| 316 Stainless Steel | Seawater corrosion resistant | Marine bags, outdoor equipment |
| Gold-plated Brass | Luxurious appearance | High-end handbags |
| Titanium Alloy | Ultra-lightweight | Luggage accessories |
- Typical Applications
– Adjustable straps for luxury bags
– Anti-theft connection chains for luggage
– Quick-release systems for camera bags
-
Trace Chain
- Structural Features
The trace chain uses oval links arranged in an alternating 90° vertical cross pattern.
Key Specifications:
– Tensile strength: ≥800N/mm²
– Pitch tolerance: ±0.1mm
– Surface roughness: Ra≤0.8μm
- Unique Advantages
– Precise length control: Individual links can be removed
– Silent operation: Special structure minimizes metal clinking
– Hair-friendly design: Smooth edge treatment
- Process Requirements
– Stamping precision: ±0.05mm
– Plating thickness: Nickel layer ≥8μm
– Salt spray test: 72 hours without corrosion
- Application Scenarios
– Shoulder strap adjustment systems for premium briefcases
– Safety chains for pet leash bags
– Emergency release devices for medical cases
-
Malle Chain
- Design Principle
Originating from German precision engineering, the Malle chain features special trapezoidal links with built-in micro bearings.
Innovative Design:
– Dual-axis rotation structure
– Self-lubricating copper core
– Overload protection mechanism
- Performance Parameters
| Parameter | Standard Value | Test Method |
|———–|—————|————-|
| Fatigue life | >50,000 cycles | GB/T 15822.3 |
| Rotation resistance | <0.5N·m | DIN 50100 |
| Low-temperature performance | Normal use at -40℃ | ISO 6892 |
- Material Evolution
– First generation: Chrome-plated carbon steel
– Second generation: Nickel-titanium memory alloy
– Third generation: Ceramic composite material
- Special Applications
– Pressure cabin connectors for aviation luggage
– Emergency release devices for bulletproof briefcases
– Low-temperature connection systems for polar expedition gear
-
Comparison Guide
- Performance Comparison Table
| Type | Flexibility | Load Capacity | Quietness | Price Range |
|——|————|————–|———-|————|
| Cable Chain | ★★★★★ | ★★☆ | ★★☆ | Mid-range |
| Trace Chain | ★★★☆ | ★★★★ | ★★★★★ | High-end |
| Malle Chain | ★★★☆ | ★★★★★ | ★★★☆ | Premium |
- Selection Recommendations
– Daily commute: Choose a 1.5mm cable chain
– Business travel: Recommend 2.5mm trace chain
– Special applications: Must use Malle chain
- Maintenance Points
– Cable Chain: Monthly silicone oil treatment for joints
– Trace Chain: Avoid contact with acidic liquids
– Malle Chain: Annual professional bearing inspection
Note: Technical parameters sourced from IBHMA 2023 Annual Report. For actual product images, please refer to major hardware suppliers’ websites or contact us for product catalogs. Professional selection advice should be obtained from bag engineers based on specific usage scenarios and material certifications (such as REACH, ROHS, etc.).
