Okada America, Inc.

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.

		TOP21LT	TOP21H	TOP31	TOP35	TOP45B	TOP55	TOP60B
Energy class	ft-lbs	150	225	375	500	750	1000	1250
Working pressure range	psi	1300- 1740	1300- 1740	1450- 2030	1735- 2320	1450- 2320	1560- 2280	1735- 2320
Frequency range	bpm	550-1000	550-1000	450-1000	1000-1250	800-1100	740-980	730-970
Approx. operating weight	lbs	195	265	386	550	780	1050	1190
Chisel diameter	inches	1.77	1.77	2.24	2.4	2.7	2.9	3.3
Back cap N2 gas pressure range	psi	142-200	142-200	142-200	114-142	142-171	100-128	156-171
Carrier machine weight range	US tons	0.8-2.5	1.1-2.5	1.65-4.4	2.2-4.4	4.4-8	5-9	6-10
Piping inner diameter	inches	1/2	1/2	1/2	1/2	1/2	1/2	3/4
Circuit relief valve set at	psi	2500	2500	2500	2500	2500	2500	2500
Carrier output flow range	gpm	4-9	5-9	7-13	13.2-17	17.2-21.5	15.9-21.2	17-23

		TOP90	TOP100A	TOP200	TOP205	TOP270
Energy class	ft-lbs	2000	2500	3500	4000	5000
Working pressure range	psi	2000-2620	2030-2620	2030-2620	2030-2620	1850-2420
Frequency range	bpm	550-850	550-710	465-625	340-700	360-700
Approx. operating weight	lbs	1450	2440	3870	4120	5680
Chisel diameter	inches	3.9	4.3	4.9	5.3	5.5
Back cap N2 gas pressure range	psi	114-130	71-156	71-142	28-42	36-43
Built-In accumulator N2 gas	psi	N/A	N/A	N/A	870	870
Carrier machine weight range	US tons	7.7-13.2	11-21	18-24	20-30	22-33
Piping inner diameter	inches	3/4	3/4	1	1	1
Circuit relief valve set at	psi	2700	2700	2700	2700	2700
Carrier output flow range	gpm	22-31	29-35	39.5-53	43-53	47-63

		TOP295	TOP300	TOP400	TOP700
Energy class	ft-lbs	7500	7500	10000	15000
Working pressure range	psi	1850-2420	2030-2620	2030-2620	1990-2630
Frequency range	bpm	320-600	280-420	320-400	260-340
Approx. operating weight	lbs	6530	6650	9350	12150
Chisel diameter	inches	5.9	6.1	6.7	7.3
Back cap N2 gas pressure range	psi	36-43	43-57	40-46	71-78
Built-In accumulator N2 gas	psi	870	870	725	725
Carrier machine weight range	US tons	31-47	31-47	38-53	50-
Piping inner diameter	inches	1	1	1-1/4	1-1/4
Circuit relief valve set at	psi	2700	3000	3000	2800
Carrier output flow range	gpm	63-72	63-72	74-93	79-101

The TOP205, TOP270 and TOP295 have a two-speed feature. Max frequency is while the breaker is in short stroke mode.
Operating weight excludes a backing plate for skid steer configuration.
Please refer to carrier specifications in order to see what combination is best for you.
Specifications are subject to change without notice.

Skid-steer loader	Universal mount	Vertical bracket
Custom engineered single and two-position brackets give excellent results on many popular carriers. We are able to match most manufacturer's quick coupler requirements.	Universal brackets are mounted on a variety of carrier machines using a slip-fit pin kit. These brackets are recommended for rental applications and users who have multiple carrier machines.	Vertical brackets are the most commonly used mounting method. The upper mount bracket can be used together with quick-coupler systems on a variety of carriers.