2025 Okada Top Series Mid Class TOP270B
- Year 2025
 - Make Okada
 - Model Top Series Mid Class
 
2025 Okada Top Series Mid Class TOP270B
Precision machining processes and strict Okada quality control are used to produce all main breaker components. There is no need for complete assembly replacements and the use of high precision parts mean economical, labor-saving rebuilds of your Okada breaker. Breaker brackets are made of heavy gauge high tensile steel plates and are designed to give maximum protection to the breaker body and dissipate heat while making it easier to access the equipment during daily maintenance inspection. Okada bushing designs, a special heat treatment process and individually lubricated bushings enhance the service life of wear parts.
Features may include:
Accumulator
- Used to reduce pressure spikes in supply and return lines to protect the carrier hydraulic system. The high pressure accumulator is field repairable without removing the breaker from its mountings. Breakers under 4000 lbs. do not require accumulators.
 
Seals
- Cup seals are utilized to secure the flow in the oil and gas chambers.
 
Nitrogen gas
- Cushions piston on the upstroke, eliminating the need for shock absorbers. Increases the piston down stroke force.
 
Auto-lube
- A central grease port with internal grease passage allows you to easily adapt the hammer to most Auto Lube systems.
 
Working tools
- Choice of moil, chisel, blunt and special application tools.
 
Piston Travel/Long Stroke Design
- Travels through one machined piece (no misalignment). The long stroke design reduces shock loads and vibration, which can cause operator fatigue and machine stress. Okada breakers have the highest tolerance to high operational back pressures available without negative operational effects.
 
Chisel set pin
- Heavy dual chisel set pins in many Okada models offer extended service life.
 
Engine
							Engine Power
							Mechanical Energy: 60-105 hp / 45-78 kW | Mechanical Energy Avg.: 82.5 hp / 62 kW
						
						Operational
							Operating Conditions
							Impact Energy Class: 5500 ft-lb / 7458 Joules | Frequency: 400-500 bpm L-Mode / 600-700 bpm S-Mode
						
						Hydraulics
							Hydraulic Flow
							Oil: 47-63 gpm / 178-238 lpm
						
						
							Maximum Pressure
							Operating: 2030-2465 psi / 140-170 bar
						
						Dimensions
							Length
							Unit Working: 123 in / 312 cm | Tool Working: 28.7 in / 730 mm
						
						
							Dimensions
							Tool Diameter: 5.5 in / 140 mm | 85DB(A) Level Distance: 100-140 ft / 31-43 m
						
						Weights
							Weight, In Running Order
							Operating: 5380 lbs / 2440 kg
						
						
							Weight
							Carrier Range: 44-66 lbs (1000 lbs.) / 20-30 M ton