Traffic speed bump

Traffic speed bumps are predominantly manufactured from Recycled Rubber or High-Density Polyethylene (HDPE). Rubber is the industry standard due to its impact absorption, which protects vehicle suspensions, and its high friction coefficient that prevents skidding in wet conditions. For heavy-duty industrial areas, Cast Steel speed bumps are recommended as they can withstand extreme axle loads exceeding 50 tons without deformation.

To ensure safety, speed bumps must feature High-Intensity Reflective Tape (often EGP or HIP grade) or embedded cat-eye reflectors. The color scheme should follow international standards, typically alternating Yellow and Black sections. For B2B buyers, it is crucial to verify that the reflective elements are recessed or chemically bonded to the surface to prevent them from peeling off under constant tire friction.

Buyers should prioritize suppliers whose products meet MUTCD (Manual on Uniform Traffic Control Devices) standards for dimensions and color. Additionally, look for CE marking for the European market and REACH/RoHS certification to ensure the rubber compounds do not contain hazardous heavy metals or PAHs (Polycyclic Aromatic Hydrocarbons), which is vital for environmental compliance.

The choice of fasteners is critical: Expansion Bolts are required for concrete surfaces, while Extra-long Rebar Spikes are necessary for asphalt to prevent the bump from shifting. Professional sourcing should confirm if the supplier includes a modular interlocking system, which allows for customizable lengths and easier replacement of damaged individual segments rather than the entire unit.

Low-quality rubber often has a strong pungent odor and tends to become brittle under UV exposure. Request a UV-stabilization test report and a Shore A Hardness test (typically 65-80 HA). When sourcing via Made-in-China.com, utilize the Audit Reports to verify if the manufacturer has specialized vulcanization equipment to ensure product density and longevity.

Speed bumps are high-density, heavy items, making shipping costs a significant portion of the TCO. Negotiate for SKD (Semi-Knocked Down) packaging to optimize container space. For large volumes, request FOB (Free On Board) terms to maintain control over your freight forwarder, and aim for a 20GP or 40HQ full container load to significantly reduce the per-unit shipping cost compared to LCL.

For bulk orders, always use Secured Payment services provided by platforms like Made-in-China.com to ensure funds are only released upon proof of shipment. Additionally, hire a third-party inspection agency (like SGS or Intertek) to perform a Pre-Shipment Inspection (PSI) to verify the quantity, bolt hole alignment, and reflective tape adhesion before the balance payment is made.

Verify the HS Code (typically 4016.99 for other articles of vulcanized rubber) with your local customs broker to determine applicable tariffs. Be aware of Anti-Dumping duties that some regions may apply to specific rubber products. Ensure the supplier provides a clear Certificate of Origin (CO), which may qualify the shipment for preferential tariff rates under trade agreements like RCEP or FTA.