B90/B70 Pneumatic Breaker, Air Breaker, Rock Breaker

B90/B70 Pneumatic Breaker,Air breaker,Rock breaker: B70 is widely used in breaking work; B90 is mainly used for demolition work, road maintenance or mining and construction project Big impact power and low air consumption, easy for operation; Mounted with advanced silencer which ensures compliance with noise standard. It is environmental friendly and protect operator's health. Built in lubrication systems increase service life. Product Model B90 B70 Weight (kg) 34 29 Length (mm) 745 725 Shank size (mm)32× 152 (160) 32× 152 (160) Air Pressure (at 0.5MPa) Impact frequency (Hz) ≤ 27 ≤ 24 Rotation (r/min) ≥ 16 ≥ 16.8 Drill steel fixing method Retainer Retainer Air hose inner diameter (mm) 19 19 Product article Number 3312 3004 12 3312 3004 13 /* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1