Descriptions: belt grinder variable speed chasses is designed for professional knives other cutting tools and machines makers. We offer full range accessories for making knives blades scissors and other stuff for processing metal. The set is very simple in maintenance and doesn t require any special skills of an engineer and can be built at your workshop. Parameters: electrics: 220v 50hz belt dimensions: 72 *2 1828mm*50mm the machine has 3 belts 60 mesh 120 mesh and 240 mesh respectively. Weight: 148 lbs 67kg wooden case package notice 1. The frequency converter and the power supply must be separated by the circuit breaker or else the firce alarm may occur 2. Different places have different receptacles. Please note this plug and consult your electrician before purchase. 3. The style of frequency converter will be different due to different production batches. Item included:190830 preasion belt sander knife grinder 220v multi-funchion industrial polishing machine