Okada Breakers: OKB300 series
● Small sized OKB hydraulic breakers


These compact but powerful units are suitable for mounting onto Mini-excavator, Skid-steer loaders, and Tractor loader backhoes. Typical uses include all types of demolition work, and are also used for specialty applications such as underground mining and stationary pedestal mounting.




SPECIFICATIONS:

OKB300 OKB301 OKB302A OKB303B OKB304B OKB305
Operating pressure psi 1420-2130 1140-1990 1560-2280 1560-2280 1990-2280 1420-2130
kg/cm2 100-150 80-140 110-160 110-160 140-160 100-150
Oil frow required USG/min 4.0-6.6 6.6-9.2 6.6-11.9 10.6-15.9 15.9-18.5 15.9-21.1
L/min 15-25 25-35 25-45 40-60 60-70 60-80
Blow number bpm 650-1100 800-1300 850-1150 600-1000 880-98 500-900
Operating weight lb 176 231 406 661 904 992
kg 80 105 184 300 410 450
Overall length
(without bracket)		 inch 37.8 40.8 50.4 56.1 55.7 61.4
mm 960 1037 1280 1424 1415 1560
Pipng diameter
(minimum I.D.)		 inch 1/2 1/2 1/2 1/2 1/2 or 3/4 1/2 or 3/4
mm 13 13 13 13 13 or 19 13 or 19
Bass Machine Weight ton 1.2-2.5 2.0-3.5 2.5-4.5 4-7 5-8 6-9
lb 2640-5510 4410-7720 5510-9920 7720-15400 11000-17600 13200-19800

● The operating weight varies depending on the type of bracket and base machine.
● The performance data vary depending on the base machine.
● The specifications above are subject to change without notice.
● Medium sized OKB hydraulic breakers

The mobility and performance of these unit make them an excellent choice for demolition, excavation, quarry, and trenching requirements. They are typically used on crawler and wheeled excavators.
● Large sized OKB hydraulic breakers
These breakers are perfect for mounting onto very large crawler excavators. The tremendous impact force of these units produces maximum results in quarries and large scale trenching jobs.

SPECIFICATIONS:


 OKB308 OKB310 OKB312B OKB316 OKB318 OKB324 OKB330
Operating pressure psi 1710-2280 1850-2280 2130-2420 1990-2420 1990-2420 2130-2560 2130-2560
kg/cm2 120-160 130-160 150-170 140-170 140-170 150-180 150-180
Oil frow required USG/min 23.8-31.7 29.0-41.0 37.0-47.6 38.3-48.9 42.3-55.5 74.0-92.5 74.0-100.4
L/min 90-120 110-155 140-180 145-185 160-210 280-350 280-380
Blow number bpm Mode L 500-650 500-580 450-500 400-500 320-420 300-400 260-340
Mode S 700-850 700-820 650-750 600-700 500-600
Operating weight lb 2094 2756 3307 4740 5732 8157 11904
kg 950 1250 1500 2150 2600 3700 5400
Overall length
(without bracket)		 inch 75.0 80.3 85.2 97.8 105.0 118.3 137.0
mm 1905 2040 2165 2485 2665 3005 3480
Pipng diameter
(minimum I.D.)		 inch 3/4 3/4 or 1 1 1 1 1 1/4 1 1/4
mm 19 19 or 25 25 25 25 32 32
● The operating weight varies depending on the type the base machine.
● OKB305 and lager models can be used for underwater applications.
● Please contact your dealer for more information.
● The specifications above are subject to change without notice.
● Okada Hydraulic Breakers

FEATURES
    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.
SPECIFICATIONS
Light class (TOP25, 30, 35, 40, 45B 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.
Light class (TOP25, 30, 35, 40, 45B and 60B)  
Specifications TOP25 TOP30 TOP35 TOP40 TOP45B TOP60B
Operating pressure MPa 8-15 12-16 12-16 12-16 12-16 12-16
Oil flow required L/min 18-38 24-35 35-55 31-46 65-81 48-80
Blow number bpm 730-1350 850-1100 1000-1250 600-910 800-1100 730-970
Back cap N2 gas pressure MPa 0.2-0.3 0.5-0.6 0.8-1.0 1.0-1.2 1.0-1.2 1.1-1.2
Built in accumulator gas pressure MPa - - - - - -
Tool diameter mm 50 61 61 68 68 85
Tool length mm 500 550 550 700 700 900
Operating weight kg 154 224 224 293 325 457
Overall length
(without bracket)		 mm 1032 1206 1206 1362 1362 1570
Piping diameter
(minimum I.D.)		 mm 13 13 13 13 13 13
Circuit relief valve set pressure MPa 17.5 17.5 17.5 17.5 17.5 19
Carrier machine weight range Tons 1.5 - 3.5 2.0 - 4.0 2.0 - 4.0 4.0 - 5.5 4.0 - 7.0 5.5 - 9
The operating weight varies depending on the type of bracket and the base machine.
Performance data varies depending on the base machine.
The above specifications are subject to change without notice.
Medium class (TOP90, 100A, 200, 205 and 250)
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.
Medium class (TOP90, 100, 200, 205, 250 and OKB316)  
Specifications TOP90 TOP100A TOP200 TOP205 TOP250
Operating pressure MPa 13.7-18 14-18 14-18 14-18 14-18
Oil flow required L/min 70-110 80-115 120-160 100-130 120-160
Blow number bpm 550-850 550-710 465-625 340-700 310-480
Back cap N2 gas pressure MPa 0.7-0.9 0.5-1.1 0.5-1.0 1.9-3.0 0.3-0.6
Built in accumulator gas pressure MPa - - - 5.9 5.9
Tool diameter mm 98 110 125 135 135
Tool length mm 925 1000 1200 1200 1200
Operating weight kg 665 1070 1640 1761 1850
Overall length
(without bracket)		 mm 1732 1890 2205 2108 2317
Piping diameter
(minimum I.D.)		 mm 19 19 25 25 25
Circuit relief valve set pressure MPa 19 19 19 19 21
Carrier machine weight range Tons 7 - 12 10 - 19 14 - 22 18 - 27 18 - 27
The operating weight varies depending on the type of bracket and the base machine.
Performance data varies depending on the base machine.
The above specifications are subject to change without notice.
Heavy class (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.
Heavy class (TOP300, 400 and OKB330)  
Specifications TOP300 TOP400 TOP800
Operating pressure MPa 14-18 14-18 15-18
Oil flow required L/min 160-215 220-270 280-380
Blow number bpm 280-420 270-350 260-340
Back cap N2 gas pressure MPa 0.3-0.4 0.3 0.5
Built in accumulator gas pressure MPa 5.9 4.4 4.4
Tool diameter mm 155 169 186
Tool length mm 1400 1580 1600
Operating weight kg 2925 4230 5600
Overall length (without bracket) mm 2727 3063 3480
Piping diameter (minimum I.D.) mm 25 32 32
Circuit relief valve set pressure MPa 21 20 20
Carrier machine weight range Tons 28 - 43 38+ 50+
The operating weight varies depending on the type of bracket and the base machine.
Performance data varies depending on the base machine.
The above specifications are subject to change without notice.
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