core cutting machine 255 mm

12-Inch 305mm BJ-305 Professional Vertical Reinforced Concrete Core Drilling Machine – 4350WTechnical Specifications Mechanical DetailsHeavy-duty steel and aluminium vertical drilling standRack-and-pinion feeding mechanism for controlled drillingT-shaped operating handle for smooth downward movementAdjustable motor carriage mounted on guide columnReinforced base plate with anchor-fixing pointsHigh-torque electric motor for large-diameter coringExternal carbon brushes for easier inspection and replacementIntegrated water inlet for diamond-bit cooling and dust reductionStandard threaded spindle for professional diamond core barrelsStable guide column designed to minimize vibration and bit movementSuitable for vertical...

12-Inch 305mm BJ-305 Professional Vertical Reinforced Concrete Core Drilling Machine – 4350W

Technical Specifications

 

Mechanical Details

• Heavy-duty steel and aluminium vertical drilling stand
• Rack-and-pinion feeding mechanism for controlled drilling
• T-shaped operating handle for smooth downward movement
• Adjustable motor carriage mounted on guide column
• Reinforced base plate with anchor-fixing points
• High-torque electric motor for large-diameter coring
• External carbon brushes for easier inspection and replacement
• Integrated water inlet for diamond-bit cooling and dust reduction
• Standard threaded spindle for professional diamond core barrels
• Stable guide column designed to minimize vibration and bit movement
• Suitable for vertical floor drilling and horizontal wall drilling when securely anchored
• Replaceable diamond core bits for different hole diameters

Product Description

The BJ-305 Professional Vertical Concrete Core Drilling Machine is a heavy-duty, stand-mounted diamond drilling system designed for accurate coring in reinforced concrete, RCC slabs, walls, beams, masonry and stone.

Its powerful 4350W motor supports core drilling from approximately 15mm up to 305mm (12 inches). The rigid drilling stand and controlled rack-and-pinion feed help produce clean, circular holes with reduced vibration and minimal structural disturbance.

This machine is suitable for plumbing pipes, electrical conduits, HVAC ducts, fire-fighting lines, drainage systems, industrial installations and structural modification projects.

Main Applications

• RCC slab and wall core drilling
• Plumbing and drainage openings
• HVAC and kitchen-exhaust holes
• Electrical and communication ducts
• Fire-fighting pipe penetrations
• Industrial pipeline installation
• Anchor and service openings
• Reinforced-concrete sampling
• Commercial and infrastructure projects