Specification | Tokyo Plant

Tanaka's Hydraulic Dynamometer

P-A type

Irreversible type (One direction rotation is controllable)
Best product range for the test of middle to large diesel engines

Model	Max. brake power kW	Max. brake torque N.m	Max. speed min^-1	Constant torque range min^-1	Inertia kg.m²	Necessary water flow L/min
P-30A	700	2,400	5,300	656~2,785	0.437	400
P-35A	1,000	3,900	4,800	429~2,448	0.975	570
P-40A	1,500	7,500	4,500	438~1,909	1.88	860
P-45A	2,500	12,000	4,000	415~1,989	2.85	1,433
P-55A	3,500	20,000	3,000	380~1,671	8.165	2,000
P-60A	4,500	31,000	2,600	320~1,386	15.275	2,580
P-70A	5,500	49,000	2,300	319~1,071	31.225	3,150
P-80A	7,500	84,000	1,300	352~852	41.483	4,300
P-90A	8,000	120,000	1,200	355~636	78	4,580

PRS-A type

Reversible type (Both direction rotations are controllable)
Best product range for the test of middle to large diesel engines

Model	Max. brake power kW	Max. brake torque N.m	Max. speed min^-1	Constant torque range min^-1	Inertia kg.m²	Necessary water flow L/min
PRS-30A	480	1,800	5,300	834~2,546	0.437	275
PRS-35A	720	3,000	4,800	552~2,291	0.975	420
PRS-40A	1,000	5,600	3,400	553~1,705	1.88	570
PRS-45A	1,500	9,800	3,000	557~1,461	2.85	860
PRS-55A	2,200	15,000	2,500	487~1,400	8.165	1,260
PRS-60A	3,000	24,000	2,300	417~1,193	15.275	1,720
PRS-70A	4,000	37,000	2,000	354~1,032	31.225	2,290

P type

Irreversible type (One direction rotation is controllable)
Best product range for the test of small to middle gasoline or diesel engines

Model	Max. brake power kW	Max. brake torque N.m	Max. speed min^-1	Constant torque range min^-1	Inertia kg.m²	Necessary water flow L/min
P-1.5	88	281	8,000	1,206~2,990	0.017	50
P-1.8	147	420	6,000	1,238~3,342	0.03	80
P-2.0	184	700	5,500	922~2,510	0.062	105
P-2.5	258	1,403	5,000	679~1,755	0.187	150
P-3.0	368	2,810	4,000	588~1,250	0.437	210
P-3.5	515	4,214	3,500	468~1,166	0.975	300
P-4.0	736	6,337	3,000	411~1,109	1.88	420
P-4.5	1,104	10,546	2,750	398~999	2.85	630

PRS type

Reversible type (Both direction rotation are controllable)
Best product range for the test of small to middle gasoline or diesel engines

Model	Max. brake power kW	Max. brake torque N.m	Max. speed min^-1	Constant torque range min^-1	Inertia kg.m²	Necessary water flow L/min
PRS-1.5	74	211	8,000	1,482~3,348	0.017	40
PRS-2.0	110	422	5,500	1,204~2,489	0.062	60
PRS-2.5	184	876	5,000	826~2,005	0.187	105
PRS-3.0	294	1,403	4,000	564~2,001	0.437	170
PRS-3.5	368	2,810	3,500	500~1,250	0.975	210
PRS-4.0	515	4,216	3,000	443~1,166	1.88	295
PRS-4.5	736	7,024	2,750	421~1,000	2.85	420

PHS type

Irreversible type (One direction rotation is controllable)
Best product range for the test of high speed turbine

Model	Max. brake power kW	Max. brake torque N.m	Max. speed min^-1	Necessary water flow L/min
PHS-3.0	4,000	4,600	12,000	2,000
PHS-4.0	7,000	10,000	8,000	2,850
PHS-5.5	20,000	48,000	5,100	9,500
PHS-6.5	28,000	70,000	4,700	13,300

* Constant torque range: Based on the customer request.
* Inertia: Based on the customer request.

PRD type

Reversible type (Both direction rotation are controllable)

Best product range for the test of large marine engine

Model	Max. brake power kW	Max. brake torque kN.m	Max. speed min^-1	Constant torque range min^-1	Inertia kg.m²	Necessary water flow L/min
PRD-10	6,000	120	600	172~477	237	2,870
PRD-11	7,000	200	550	212~334	484	3,350
PRD-13	8,500	240	540	178~338	770	4,060

* Constant torque range: Based on the customer request.
* Inertia: Based on the customer request.
* Cooling water flow: Theoretical water flow when inlet water temp. is 35 °C and outlet water temp. is 60 °C.
* Specification is subject to change due to product modification.

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Tanaka's Hydraulic Dynamometer

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