Product Overview
High-grade Cast Polyurethane (CPU) bonded to a solid one-piece steel core, engineered for heavy-duty commercial environments. Designed for gym chains, distributors, and fitness brands seeking low-maintenance, zero-odor, and high-precision free weights.
Technical Specifications
| Product Name: | PU Dumbbells Set |
| Core Material: | Solid CNC-Machined Steel |
| Coating Material: | High-Grade Cast Polyurethane (CPU) |
| Handle Material: | Solid Steel with Hard Chrome Plating |
| Weight Precision: | ±1% Tolerance |
| Weight Range: | 1–50 kg / 2–100 lbs (Custom Increments Available) |
| Handle Diameter: | 30 mm – 34 mm |
| Handle Material: | Solid Steel with Hard Chrome Plating |
| Head Shape: | 12-Sided Anti-Roll / Round |
| Weight Markings: | Deep-Engraved / Molded (KG & LB) |
| MOQ: | 1 Ton (Custom Logo) / 2–3 Tons (Custom Mold/Color) |
Technical Features
Premium CPU Encapsulation: Made from high-grade raw polyurethane. Eco-friendly, zero-odor (REACH & RoHS certified), with 5 times the tear strength of standard rubber.
Solid Steel Core (No Welding): CNC-machined single-piece steel interior ensures strict weight tolerance (+/-1%). No loosening, no balancing issues.
Industrial Chrome Handle: Press-fit and welded head-to-handle joint (tested up to 5,000 lbs pull-out force). Medium 1.2mm diamond knurling with hard chrome plating for rust prevention.
Anti-Roll Multi-Hex Design: Available in 12-sided or round shapes. The 12-sided contour prevents rolling, maximizing gym safety and storage efficiency.
Permanent Weight Marks: Deep-engraved or high-contrast molded weight numbers (KG/LB) that never peel or fade.
Quality Control & Testing Standards
Drop Testing: Batch-tested with 1,000 consecutive drops from a height of 1.5 meters onto high-density rubber flooring with zero structural deformation or PU delamination.
Adhesion Pull-Off Test: Proprietary chemical bonding agent prevents the PU shell from separating or bubbling under extreme temperature fluctuations (-20°C to 60°C).
Salt Spray Testing: Chrome-plated steel handles undergo a 72-hour neutral salt spray test (ASTM B117) to ensure maximum corrosion resistance in high-humidity facilities.
Symmetry & Balance Test: Every single-piece core is balanced on high-precision rotational testing equipment to guarantee a concentric and centered grip.
Supply Chain & Logistics
Packaging Protocol: Individual polybags and reinforced corrugated cartons, packed on fumigated ISPM-15 compliant wooden pallets with edge protectors and heavy-duty strapping.
Flexible Container Consolidation: Supports mixed-weight container loading, allowing buyers to combine different dumbbell weights, kettlebells, and barbell plates in a single shipmen.
Customization Capabilities
Weight Range: 1-50 kg / 2-100 lbs (Custom increments available)
Branding: 3D Molded Logo / Laser Engraving / Color Matching (Pantone)
Handle Variance: Customizable diameter (30mm - 34mm) and knurling aggressiveness.
Supply Capacity: Custom rack integration, palletized export packaging, and private label dropshipping solutions.
Factory Strengths & Advantages
15+ Years of OEM & ODM Manufacturing
Dedicated production for fitness equipment with support for custom weights, colors, logos, packaging, and private label projects.
International Compliance Support
Products can be supplied with SGS test reports and manufactured to meet applicable CE, REACH, and RoHS requirements based on target market needs.
Reliable Export Supply
More than 10 years of export experience serving distributors, fitness brands, wholesalers, and retailers across global markets with stable delivery schedules.
Stable Production & Quality Management
Standardized manufacturing processes and batch traceability help maintain consistent product quality and reliable order fulfillment for large-volume production.
FAQ
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