Negotiate based on the Total Cost of Ownership (TCO) rather than just the unit price. Ask for a breakdown of spare parts packages (e.g., screens, seals, and bearings) for the first two years of operation. For bulk orders or large-scale projects, aim for a 10-15% discount by offering a staged payment plan (e.g., 30% deposit, 60% after successful FAT/Factory Acceptance Test, 10% after installation). Always clarify the Incoterms; for heavy machinery, CIF or DAP is often preferred to ensure the supplier handles the complexities of international heavy-lift logistics.