TOP > Products > Okada Hydraulic Breakers Stringent quality control and exhaustive testing Every step of production, from material selection and machining to hardening and final assembly, is controlled by an exhaustive quality control system. To ensure the absolute best quality possible, each unit is fully tested in a specially equipped room dedicated to performance inspection. Long life New special alloy steels and an advanced heat treatment system enhance main component durability. Medium and large class breakers are equipped with a threaded port for attaching an automatic lubrication system. Unprecedented durability The square-shaped main body is created using special alloy and subjected to advanced heat treatment processing, making the hammer body extremely durable. In addition, Okada hammers use fewer parts than competing brands of hydraulic breakers, so there is far less chance of problems developing. Light class (TOP25A, 30, 35, 45B, 55 and 60B) Okada light class hammers are suitable for mounting onto mini-excavators, skid-steer loaders, and tractor loader backhoes. Typical uses include all types of demolition work, excavation, trenching work and more.   TOP25A TOP30 TOP35 TOP45B TOP55 TOP60B Operating Weight (Standard/Silent) kg 154 193 224 266 224 266 325 434 410 504 457 516 Working Pressure MPa 8-10 12-16 12-16 12-16 '11-16 12-16 Oil Flow Consumption L/min 23-35 24-35 35-60 60-85 48-70 48-80 Frequency B.P.M 660-1100 850-1100 1000-1300 800-1100 740-980 730-970 Overall Length w/o bracket mm 1032 1206 1206 1362 1415 1570 Working Steel Dia. mm 50 61 61 68 74 85 Carrier machine weight range Weight Ton 1.5-4.5 3.0-4.5 3.0-7.0 5.0-8.0 5.0-9.0 5.5-10.0 Rate of Flow L/min 25- 25- 38- 50- 50- 50- The operating weight varies depending on the type of bracket and the carrier machine. The performance data vary depending on the carrier machine. Suitable carrier varies depend on the specifications. The specifications above are subject to change without notice. Medium class (TOP90, 100A, 190, 200, 205 and 290) The Okada line of five breakers for 10-27 ton class excavators provide a variety of specifications designed to match up well with a broad range of customer need.   TOP90 TOP100A TOP190 TOP200 TOP205 TOP290 Operating Weight (Standard/Silent) kg 810 855 1070 1015 1400 1200 1640 1505 1761 1645 1850 1745 Working Pressure MPa 13-18 14-18 14-18 14-18 14-18 14-18 Oil Flow Consumption L/min 70-110 80-115 100-120 120-160 100-130 120-160 Frequency B.P.M 550-850 550-710 600-750 465-625 340-700 310-480 Overall Length w/o bracket mm 1732 1890 1950 2205 2108 2317 Working Steel Dia. mm 98 110 120 125 135 135 Carrier machine weight range Weight Ton 7.0-16.0 10-19 14-22 14-26 18-28 20-30 Rate of Flow L/min 65- 100-150 140-230 140-230 160-260 160-260 The operating weight varies depending on the type of bracket and the carrier machine. The performance data vary depending on the carrier machine. Suitable carrier varies depend on the specifications. The specifications above are subject to change without notice. Heavy class (OKB316, TOP300, 400 and 800) These breakers are perfect for mounting onto very large crawler excavators. The tremendous impact force of these units produces maximum results in quarries and for large scale trenching jobs.   OKB316 TOP300 TOP400 TOP800 Operating Weight (Standard/Silent) kg 2540 2395 2925 2730 4230 4045 5600 5600 Working Pressure MPa 14-17 14-18 14-18 15-18 Oil Flow Consumption L/min 145-185 160-215 280-350 280-380 Frequency B.P.M 400-700 280-420 320-400 260-340 Overall Length w/o bracket mm 2485 2727 3063 3480 Working Steel Dia. mm 140 155 169 189 Carrier machine weight range Weight Ton 22-34 28-45 40-60 60 - Rate of Flow L/min 180-240 280-300 280-350 280-382 The operating weight varies depending on the type of bracket and the carrier machine. The performance data vary depending on the carrier machine. Suitable carrier varies depend on the specifications. The specifications above are subject to change without notice.