The Darda C12 is a handheld hydraulic splitting cylinder from Darda’s C-series, built for controlled demolition of rock and reinforced concrete where blasting, vibration, noise and flying debris are off the table. Working from a 1.771.89 in. drilled hole at pressures up to roughly 500 bar, its wedge set develops 1,363,000 lb of theoretical splitting force 789,000 lb effective to crack material from the inside out in a predetermined direction.

A split is a three-step cycle: drill the 24 in. minimum-depth hole, insert the 15 in. wedge set, and apply pressure from a hydraulic power pack. An aluminum-and-steel cylinder body keeps weight to 68 lb for one-operator work in tunnels, interiors and pile-head removal. Crowder Supply stocks the C12 among its concrete and rock splitters; see the Darda splitter page for the line, or start with the rock splitter buyer’s guide.

• Theoretical splitting force 1,363,000 lb; effective splitting force 789,000 lb
• Works from a 1.771.89 in. drilled hole with a 24 in. minimum drill depth
• Splitting distance 0.75 in.; hydraulic operating pressure up to roughly 500 bar
• Tool weight 68 lb; 51 in. splitting cylinder with a 15 in. wedge set
• Aluminum-and-steel cylinder body; counter-wedges carry a carbide layer for wear resistance
• Splits reinforced concrete and hard rock without vibration, dust or flying debris for confined spaces and sensitive environments
• Interchangeable wedge sets adapt the tool to different materials and splitting distances
• Stocked by Crowder Supply in Denver