Hammer excavator

The most critical factor is the carrier weight compatibility; the hammer must match the excavator's tonnage (e.g., 20-ton class) to prevent hydraulic system damage. You must also verify the Impact Energy (Joules) and BPM (Blows Per Minute) to ensure it meets your specific rock hardness requirements. Additionally, prioritize hammers with through-bolt durability and high-quality alloy steel pistons to ensure a long service life under high-stress conditions.

You must confirm the operating pressure (bar/psi) and oil flow rate (L/min) of your excavator's auxiliary hydraulic circuit. Check the pin diameter and ear width of the mounting bracket to ensure a seamless fit. For international buyers, it is highly recommended to request technical drawings or CAD files from the supplier before finalizing the purchase to avoid costly mechanical mismatches.

For global trade, ensure the product carries the CE Marking (for European markets) and complies with ISO 9001:2015 quality management systems. Since these are heavy-duty tools, look for noise emission certifications and vibration control standards to protect operators and comply with local environmental regulations. Suppliers on Made-in-China.com often provide these certifications upon request.

There are three main types: Side Type, which is versatile and easy to maintain; Top Type, which provides a longer reach and is ideal for vertical demolition; and Box (Silenced) Type, which is enclosed in a housing to reduce noise levels and protect the main body from dust, making it perfect for urban construction projects.

Always insist on a pre-shipment inspection (PSI) conducted by a third-party agency like SGS or Bureau Veritas. Request a video of the hammer undergoing a pressure test at the factory. Furthermore, utilize Trade Assurance services on Made-in-China.com to ensure your payment is protected until the goods are verified against your specifications.

Focus on the Total Cost of Ownership (TCO) rather than just the unit price. Negotiate for extra wear parts (such as chisels, seal kits, and nitrogen charging kits) to be included in the initial package. For bulk orders, ask for a tiered pricing structure and clarify the warranty period (ideally 12-18 months) for core components like the cylinder and piston.

Due to the extreme weight, Sea Freight (LCL or FCL) is the most economical method. Ensure the supplier uses seaworthy wooden crate packaging with anti-rust oil coating to prevent corrosion during long transit times. Clarify the Incoterms (e.g., FOB or CIF) clearly in the contract to define who is responsible for insurance and local port charges.

Verify the HS Code (typically 8431.49) with your local customs broker to determine the exact import duty rates and VAT. Ensure the supplier provides a Certificate of Origin (CO), which may qualify you for preferential tariff rates under specific trade agreements between your country and China.