STHZ-20 Concrete Core Drilling Machine

STHZ-20 Concrete Core Drilling Machine (EN 12504-1)Application:the core drilling machine which combines high speed cutting technology and thin walled diamond bits, is widely applied to drill and core in building works,equipment installation projects and construction inspection projects.Technical parameters:1.Max. drilling diameter: Φ200mm;2.Max. drilling depth: 400mm (up to 1500mm by using extension bar);3.Motor power: 3.3KW4.Principal axis speed: 800-1200 r.p.m5.Weight