How to Choose the Right Voltage and Frequency for an Imported Screw Compressor
Why Voltage and Frequency Must Match Before You Order A single electrical mismatch can turn a $30,000 imported compressor into a machine that sits on the warehouse floor. If the motor is wired for 380V/50Hz and your site supplies 460V/60Hz, the...
FOB vs CIF vs DDP: Screw Compressor Import Incoterms Explained
A 37 kW Panrui two-stage permanent-magnet VSD screw compressor can cut five-year electricity cost from about RMB 1,296,000 to RMB 1,056,600 in the manufacturer’s comparison—a 21% saving at 0.8 MPa and 6 m³/min average demand. One wrong screw compressor import Incoterms...
China Screw Air Compressor Supplier Scams: 7 Red Flags Before You Pay
Most China screw air compressor supplier scams do not start with a fake company. They start with a quotation that is cheaper because a critical part has been swapped, sped up, or left vague. In a local Panrui engineering comparison, cheap...
Screw Compressor Supplier Documents: 8 Files to Request Before You Pay
A missing performance test report can turn a $22,000 screw compressor purchase into a $44,000 commissioning problem. Importers often approve the quotation, then discover during installation that the voltage is wrong, the specific power was never documented, or the warranty covers...
