Shanghai Huabang Industrial Business Network - dynamometer

[dynamometer]CG series eddy current dynamometer

2026-6-11 14:41:15

CGϵ��⹦��ֳƵ�Ų⹦��ĵ�ԭ��չ��ʵġ��ɲ⹦��װ��ɲ⹦װ�ã��Բ�ȡ��е��ת�غ�ת�٣��Ӷ��ó��ʣ��ȡ��ŷ��ˮ��⹦��ֱ��ȣ��ֵ綯��Ƶ��ȶ��е��ܣ��Ϊ��ʽ��ı�Ҫ�豸��⹦װ��ȣ�CGϵ�в⹦װ�þ��и��ߵĿɿ��ԡ�ʵ��Ժ��ȶ�� ۸�Ҳ��˺ܶࡣ

��Ҫ�ص�
�ṹ�򵥡��ȶ��۸��ʹ��ά��㣻
��ˮ��ȴ��͡��С��
��ת�ٷ�Χ��ڱ�Ƶ��ٵȸ��綯�� е��ʽ��飻
��õ��ཻ��Դ��ƹ��С��
ת�صĲ��Բ��ͨ��ӡ��Ӱ��ӻ�߾��ת��ת�ٲ��ǣ��ڲ�ͬ��ȵĳ��ϣ�
��װ�û��ƶ��ã��ƶ��ش�

CGϵ��⹦��ͺ�˵��

A��˫��죬��ʽ��ʡ�ԣ�
B:��

CGϵ��⹦��Ҫ��

��	��ת�� (r/min)	��� (N.m)	�� �� ��kW��	��ŵ�ѹ ��V��	�� �� A��	��ȴˮ �� (L/min��	�� kg��	�� ע
CG5	300��3600	5	0.75	<90 DC	<5	1	45	ת�� 1500r/min ��Ϊ��ת�أ� 1500r/min ��Ϊ�㹦��
CG5B							36
CG10		10	1.5				60
CG10B							40
CG20		20	3			2	100
CG20B							52
CG50		50	8			5	170
CG50B							83
CG100		100	15			8	270
CG100B							120
CG200	200��3000	200	30			15	430
CG200B							210
CG300		300	45			25	610
CG300B							300
CG650		650	100	<180 DC	<10	55	1000
CG650B							730
CG1000		1000	150			80	1730
CG1000B							1200
CG2000		2000	315			160	2240
CG2000B							2470
CG3000B		3000	470		<20	240	3500
CG6500B		6500	1000		<40	550	4600
CG10000B		10000	1570		<60	800	5800
CG14000B		14000	2200		<90	1100	8200

��	��װ�ߴ�										��γߴ粻��
��	A	B	C	D	E	E1	F	G	H	K	AB	HD	L
CG5	160	203	0	19	40	40	6	15.5	100	12	210	265	325
CG10	190	228	0	24	50	50	8	20	112	12	260	276	375
CG20	216	267	45	28	60	60	8	24	132	12	280	300	500
CG50	279	210	30	38	80	80	10	33	180	19	340	425	600
CG100	356	368	70	42	110	110	12	37	200	19	426	455	750
CG200	406	457	89	55	110	80	16	40	250	28	525	655	810
CG300	457	508	70	60	110	80	16	49	280	24	600	655	848
CG650	610	630	108	75	140	140	20	67.5	355	28	760	750	1120
CG1000	610	630	108	75	140	100	20	67.5	355	28	780	770	1140
CG2000	686	900	121	90	170	120	25	81	400	35	820	800	1600

��	��װ�ߴ�									��γߴ粻��
��	A	B	C	D	E	F	G	H	K	AB	HD	L
CG5B	160	160	8	19	40	6	15.5	100	12	200	240	256
CG10B	190	170	21	24	50	8	20	112	12	230	276	310
CG20B	220	140	30	28	60	8	24	132	12	272	310	324
CG50B	279	210	30	38	80	10	33	160	19	340	400	410
CG100B	279	267	26	42	110	12	37	180	19	350	410	450
CG200B	406	210	89	55	110	16	49	250	19	486	560	480
CG300B	406	356	45	65	140	18	58	250	28	506	570	595
CG650B	508	356	108	75	140	20	67.5	315	28	640	715	710
CG1000B	508	368	89	80	170	22	71	315	28	640	700	715
CG2000B	610	457	121	90	170	25	81	355	35	790	780	830
CG3000B	686	457	121	100	210	28	90	400	42	866	870	875
CG6500B	940	1180	245	110	210	28	100	710	42	1050	1600	2320
CG10000B	1120	1280	315	120	250	32	109	800	48	1500	1860	2590
CG14000B	1600	1420	315	130	250	32	119	1000	48	1860	2140	2980

[dynamometer]Y series hydraulic dynamometer

2026-6-11 14:41:06

The current situation of YP series (pressure type) hydraulic dynamometer in China

YP series (pressure type) hydraulic dynamometer (hydraulic dynamometer), also known as water vortex flow dynamometer, has been widely used abroad as early as the 1960s and 1970s. In 1985, the technology of Zoller Company from West Germany was introduced through licensed trade, and the series of dynamometers were developed and produced domestically. At present, this process technology has matured in China and has been widely used in the production of a full range of products.

The structural principle and main characteristics of YP series hydraulic dynamometer (hydraulic dynamometer)

(1) The structure of YP series dynamometer (hydraulic dynamometer) is shown in the schematic diagram:

1. Base 2. Left and right bearing seats 3. Main shaft components 4. Coupling 5. Bearing pressure plate 6. Skeleton oil seal 7. Shaft sleeves 8 and 9. Bimetallic shaft sleeves 10. Left and right bearing housings 11. Left and right side housings 12. Screw plugs 13. Rotor 14. Housing 15. Sealing ring 16. Speed measuring gear 17. Speed sensor 18. Overflow pipe 19. Plug valve
Its structure consists of a housing that can swing on rolling bearings and a rotor that is mounted on the main shaft. The mechanical energy output by the power machine is converted into heat energy here, and the water entering the shell is absorbed and discharged away. The concave pits on the rotor and the concave pits on the left and right side shells form a working chamber, causing water to generate vortices and carry away heat energy.
(2) Main features:
·The rotor and stator are both made of stainless steel material and have a concave groove structure.
·Adopting contactless sealing technology.
·By controlling the drainage butterfly valve, the working pressure inside the chamber can be changed to alter the absorption load.
·Quick response. Because by changing the opening of the drainage valve, the working pressure inside the chamber changes instantly. Through the automatic closed-loop control of electronic control instruments, it can be easily and quickly stabilized to the required load value. The transition time from one operating condition to another is 4 seconds.
·Due to technological advancements, the price of YP series products has approached that of D series hydraulic dynamometers and has become the dominant type of internal combustion engine dynamometer equipment.
·Small size, easy installation, convenient maintenance, and long service life.
·Wide applicability and complete power spectrum. The minimum power range is 1-20kW, and the maximum range can test 10000kW (the maximum test power introduced domestically is 35000kW).
·High testing accuracy, stable and reliable operation.

Specification and model of YP series hydraulic dynamometer (hydraulic dynamometer)

(1) Model meaning:

[dynamometer]D series hydraulic dynamometer

2026-6-11 14:40:58

The D series dynamometer is a traditional product. In the early 1960s, Shanghai Diesel Engine Factory provided foreign prototypes for imitation, filling the domestic gap and receiving commendation from the Ministry of Agricultural Machinery.
This D-series dynamometer has nearly 10000 units and is widely familiar to power machine testers. It is also a basic model for students majoring in internal combustion engines in universities to receive enlightenment education.
Over the past 40 years, although this type of dynamometer has undergone several evolutions, the internal structure of the main body has not undergone significant changes.
The D series (pin type) dynamometer has not undergone significant changes, but users can choose whether to use oil cup drip lubrication or grease lubrication according to their requirements.

The structural principle and main characteristics of the D series dynamometer
(1) Structural principle
Schematic diagram of the body structure of the D series dynamometer

1. Main shaft 2. Speed measuring gear 3. Magnetic electric speed sensor 4. Oil nozzle 5. End cover 6. Rotor bolt 7. Rotor 8. Stator 9. Water bucket 10. Side shell 11. Main bearing 12. Swing bearing 13. Bearing cover 14. Stator bolt

The main body is a pin type structure. Its working principle is to stir water through multiple pins on the rotor and stator to generate resistance, which is transmitted to the housing. Through a mechanical weighing force measuring mechanism or tension pressure sensor, the load gauge indicates the load value (or torque value), and the speed is displayed by an electronic tachometer.
The working condition of the dynamometer is changed by adjusting the water inlet. The amount of water entering determines the thickness of the inner water ring and the corresponding measured load value. The opening size of the drainage valve can adjust the outlet water temperature. Because for the same measured power, the unit is the amount of water passing through the dynamometer in the interval, and the temperature of the water inside the chamber is low, while the opposite is high.
(2) Main features
·Simple structure, easy to use and maintain.
·Pure mechanical type, with low technical requirements for operators.
·The pointer indicates the load value, and the accuracy is relatively lower compared to the YP series hydraulic dynamometer and DW series eddy current dynamometer.
·Elastic connection is used between the dynamometer and the engine.

Specification and model of D series (pin type) hydraulic dynamometer
(1) Model meaning

(2) Technical parameters (table below)

Characteristic curve of D series dynamometer
(1) How to view characteristic curves
Please refer to the YP series characteristic curve description
(2) Characteristic curves of various models of D series dynamometers

Dimensional drawing of D-series (pin type) hydraulic dynamometer coupling

model

ZxL

D12

six hundred and twenty-five

five hundred and seventy-six

four hundred

twenty-one point five

four hundred and thirty-six

four hundred and eighty-five

four hundred and forty-five

three hundred and ninety-six

three hundred and fifty-six

three hundred and ninety-nine

one hundred and sixty-eight point five

twenty

sixty-eight

4-M16x500

D100B

eight hundred and fifty

seven hundred and thirty-two

five hundred

sixty-three

five hundred and ninety-two

seven hundred and ten

six hundred and seventy

five hundred and fifty-two

four hundred and thirty

five hundred and thirty-nine

two hundred and forty-six

sixty-one

one hundred and eighteen

4-M24x550

D260B

one thousand and fifty

nine hundred and ten

five hundred

fifty

seven hundred and seventy

eight hundred and ninety

eight hundred and fifty

seven hundred and thirty

four hundred and sixty

seven hundred and fifty

three hundred and fifteen

one hundred and thirty-five

one hundred and thirty

4-M24x550

D480B

one thousand one hundred and thirty-seven

one thousand and three hundred

seven hundred

sixty-four

eight hundred and eighty-five

nine hundred and ninety-seven

nine hundred and fifty-seven

eight hundred and forty-five

five hundred and eighty

eight hundred and thirty

three hundred and fifty-five

one hundred and thirty-three

one hundred and thirty

4-M24x800

D740B

one thousand and four hundred

one thousand and three hundred

seven hundred

sixty-one

nine hundred and seventy

one thousand one hundred and ten

one thousand and seventy

nine hundred and thirty

six hundred and fifty

nine hundred and fifty

four hundred and twenty

one hundred and forty

one hundred and seventy

4-M24x800

P1500

one thousand three hundred and sixteen

seven hundred and twenty

4-M27x350

[dynamometer]AC series AC power dynamometer

2026-6-11 14:40:48

The AC series AC electric dynamometer is used to test the power of engines, reducers, and motors, with high accuracy and fast response speed, and can be used for dynamic testing. Composition: AC dynamometer, torque and speed sensors, ABB AC variable frequency speed regulation and distribution system, computer testing control system.

Working principle: The AC power generated by the AC dynamometer is converted into DC power through an ABB frequency converter, and then converted back into AC power for grid connection (or consumed by a chopper resistor cabinet). The ABB AC variable frequency speed control system regulates the current of the motor to control the speed and torque of the prime mover. Mainly used for electric vehicle motor test bench and engine dynamic test bench

1. Main performance indicators of AC series AC power dynamometer:

model	rated power	rated torque	Rated speed/maximum speed
model	kW	N.m	r/min
AC-50	fifty	three hundred and ten	1500/3000
AC-75	seventy-five	four hundred and seventy	1500/3000
AC-110	one hundred and ten	seven hundred	1500/3000
AC-160	one hundred and sixty	one thousand	1500/3000
AC-200	two hundred	one thousand two hundred and seventy	1500/3000
AC-250	two hundred and fifty	one thousand and six hundred	1500/3000
AC-350	three hundred and fifty	two thousand two hundred and eighty	1500/3000
AC-400	four hundred	two thousand five hundred and seventy	1500/3000
AC-500	five hundred	three thousand and two hundred	1500/3000
AC-630	six hundred and thirty	four thousand	1500/3000
AC-800	eight hundred	five thousand and one hundred	1500/3000
AC-110T	one hundred and ten	one hundred and seventy-five	6000/10000
AC-160T	one hundred and sixty	two hundred and fifty	6000/10000
AC-200T	two hundred	three hundred and fifteen	6000/10000
AC-250T	two hundred and fifty	four hundred	6000/10000

AC electric dynamometer (non-standard customized)

serial number	power kW	Common speed rpm	Maximum RPM	remark
one	seven point five	fifteen thousand
two	thirteen	thirty-two thousand	forty thousand
three	twenty-two	ten thousand
four	thirty	three thousand	twelve thousand
five	thirty-seven	six thousand
six	fifty-five	eight thousand and eight hundred	ten thousand
seven	seventy-five	six thousand
eight	one hundred and ten	eight thousand
nine	one hundred and thirty-two	seven thousand	eight thousand
ten	one hundred and thirty-two	eight thousand	ten thousand
eleven	two hundred	three thousand	six thousand
twelve	two hundred and fifty	four thousand	eight thousand
thirteen	two hundred and sixty	two thousand and five hundred	six thousand
fourteen	three hundred and seventy	eight thousand
fifteen	seven hundred and fifty	six thousand

2. Electric sealing test bench

AC series AC power dynamometer

[dynamometer]YF series segmented combined dynamometer

2026-6-11 14:40:40

The YF series segmented combination dynamometer has a multi unit combination structure, which can adjust the absorption power of the dynamometer according to the size of the engine, allowing one dynamometer to test all engines of different sizes. It is the best choice for engine overhaul units. The 1600kw dynamometer consists of four power absorption units, each with 400kw. If testing 20kw, only one unit needs to work, and the other three do not need to work. Testing 1000kw requires 3 units to work.

Main performance indicators of YF series segmented combined dynamometer:

model	rated power	maximum speed	Test power range
model	kW	r/min	kW
YF-1	four hundred	four thousand	20-400
YF-2	eight hundred	four thousand	20-800
YF-3	one thousand and two hundred	four thousand	20-1200
YF-4	one thousand and six hundred	four thousand	20-1600
YF-5	two thousand	four thousand	20-2000
YF-6	two thousand and six hundred	four thousand	20-2600
YF-7	three thousand	four thousand	20-3000

YF series segmented combined dynamometer

[dynamometer]DW series eddy current dynamometer

2026-6-11 14:40:31

The DW series eddy current dynamometer is mainly used to measure the effective power of power machines and the efficiency of transmission machinery. It is currently an advanced loading dynamometer equipment, and there is a trend abroad to gradually replace hydraulic dynamometers. The engine test bench composed of it is suitable for all research, quality inspection, production, and maintenance service industries.
The DW series dynamometer has the characteristics of wide testing range, bidirectional testing, high allowable speed, small moment of inertia, high measurement accuracy, and fast response to sudden load changes (0.2s). It is not affected by changes in cooling water inlet pressure and is particularly suitable for test benches with automated operation and control functions. When matched with electronic control instruments with automation control functions, it achieves high levels of remote automation control, digital display, and printing measurement. Compared to hydraulic dynamometers, eddy current dynamometers have unparalleled advantages in low-speed, medium to low power loading testing technology and are easy to implement computer control.

DW series eddy current dynamometer technical parameter table size unit: millimeter

	DW15	DW30	DW50	DW125	DW160	DW225	DW400	DW500	DW600	DW1000
Rated absorption power (KW)	fifteen	thirty	fifty	one hundred and twenty-five	one hundred and sixty	two hundred and twenty-five	four hundred	five hundred	six hundred	one thousand
Torque testing accuracy (F/S)	±0.2%	±0.2%	±0.2%	±0.2%	±0.2%	±0.2%	±0.2%	±0.2%	±0.2%	±0.2%
Speed measurement accuracy (F.S)	±0.05%	±0.05%	±0.05%	±0.05%	±0.05%	±0.05%	±0.05%	±0.05%	±0.05%	±0.05%
Maximum spindle speed (r/min)	twelve thousand	ten thousand	eight thousand	seven thousand	eight thousand	six thousand	five thousand and five hundred	five thousand	three thousand and five hundred	three thousand
Main shaft steering	Left or right	Left or right	Left or right	Left or right	Left or right	Left or right	Left or right	Left or right	Left or right	Left or right
Braking force range (N)	0-27	0-78	0-167	0-625	0-600	0-1125	0-2000	0-2900	0-3500	0-6670
Maximum absorption torque (N.m)	twenty-six	seventy-five	one hundred and fifty-nine	five hundred and ninety-five	five hundred and seventy-three	one thousand and seventy-five	one thousand nine hundred and five	two thousand seven hundred and seventy	three thousand three hundred and forty	six thousand three hundred and sixty-three
Speed at maximum torque (r/min)	five thousand and five hundred	three thousand and eight hundred	three thousand	two thousand	two thousand and six hundred	two thousand	600 - two thousand	600 - two thousand	1000 -1715	750-1500
Maximum water consumption (L/h)	four hundred	eight hundred	one thousand three hundred and fifty	three thousand and two hundred	four thousand	six thousand	ten thousand	thirteen thousand and five hundred	fifteen thousand	twenty-six thousand and six hundred
Total length of spindle	three hundred and ninety-six	four hundred and twenty-eight	five hundred and six	six hundred and sixteen	six hundred and forty	seven hundred and fifty	one thousand and seventy	one thousand and seventy	one thousand and two hundred	one thousand two hundred and fifty
The height from the center of the spindle to the bottom of the base	two hundred and eighty	two hundred and eighty	three hundred	three hundred and eighty	four hundred	six hundred	six hundred	six hundred	seven hundred and fifty	eight hundred and fifty
Dimensions of the base (length x width x height)	550×400× one hundred and twenty-five	500×400×125	650×430×130	795×545×160	700×600 × 200	1020× 780×300	1020× 780×300	1020× 780×300	1200× 900×400	1420×1000×400
Position and size of anchor screw holes	502×352 4-��17	502×352 4-��17	590×370 4-��17	725×480 4-��22	650×550 4-��22	900×680 4-��22	900×680 4-��27	900×680 4-��27	1105× eight hundred 4-��27	1300×900 6-��35
Maximum allowable drainage temperature (° C)	65-70	65-70	65-70	65-70	65-70	65-70	65-70	65-70	65-70	65-70
Moment of inertia (Kgf. m)	zero point zero one	zero point zero four	zero point zero eight	zero point one eight	zero point eight eight	one point two five	three point eight zero	three point eight zero	four point five five	seven point two five

DW series eddy current dynamometer

[dynamometer]YP series (pressure type) hydraulic dynamometer

2026-6-11 14:40:23

The YP series (pressure type) hydraulic dynamometer was widely used abroad in the 1960s and 1970s. Qice introduced West German technology in 1985 and developed and produced advanced dynamometers of this model. We can provide a full range of products by digesting and absorbing foreign technologies for new optimized design and production.

The YP series hydraulic dynamometer has 12 specifications, all of which are controlled by electric drainage butterfly valves. By changing the opening of the butterfly valve, the amount of absorbed power can be altered. The braking power range is from 20KW to 5900KW, with a complete range of varieties. Domestic and foreign users can choose the appropriate model according to their own engine power range.
This product is mainly used to test the effective power of various power engines such as diesel engines, gasoline engines, and electric motors. It is an indispensable testing equipment for power machine characteristic testing and efficiency testing of transmission machinery.

The basic type of YP series (pressure type) hydraulic dynamometer is single directional testing. If users need to order dual directional testing at the same time, please make a request and our company will provide specialized customization.

1. Main features

Small size, easy to install;
Simple structure, easy operation and maintenance;
High braking torque;
High measurement accuracy;
Stable and reliable work;
Magnetic electric speed sensor achieves high-precision instantaneous speed measurement;
Electric butterfly valve fast load control;
1. Fast response speed, suitable for dynamic testing.
2. Measurement performance indicators

project	sensor type	measurement range	accuracy	remark
speed	ZSB magneto electric speed sensor	300-7500r/min	±1r/min	Greater than 7500r/min At that time, the speed measuring wheel and control components will be handled separately
Torque	Strain gauge tension and pressure sensor	Match with the range of the dynamometer	±0.2%F.S
Water valve position	precision potentiometer (DPF, YZ60 water gate actuator)	0-100%	0.2%F.S
throttle position	precision potentiometer (YZ60, YZ60A throttle actuator)	0-100%	0.2%F.S

3. Characteristic curve:
screen.width-500)this.width=screen.width-500" height=394>

4. Technical parameters

Hydraulic dynamometer model	YP60	YP120	YP250	YP380	YP520	YP660	YP880	YP1200	YP1900	YP2500	YP3300
Maximum absorption rate (KW)	sixty	one hundred and twenty	two hundred and fifty	three hundred and eighty	five hundred and twenty	six hundred and sixty	eight hundred and eighty	one thousand and two hundred	one thousand and nine hundred	two thousand and five hundred	three thousand and three hundred
Torque measurement accuracy (F.S)	±0.2%	±0.2%	±0.2%	±0.2%	±0.2%	±0.2%	±0.2%	±0.2%	±0.2%	±0.2%	±0.2%
Speed measurement accuracy (F.S)	±0.5��	±0.5��	±0.5��	±0.5��	±0.5��	±0.5��	±0.5��	±0.5��	±0.5��	±0.5��	±0.5��
Spindle rotation direction	one-way	one-way	one-way	one-way	one-way	one-way	one-way	one-way	one-way	one-way	one-way
Braking force measurement range (N)	0~180	0~550	0~1000	0~1300	0~2500	0~3300	0~6000	0~12000	0~18000	0~27000	0~35000
Maximum braking torque (N.m)	one hundred and seventy-two	five hundred and twenty-five	nine hundred and eighty	one thousand two hundred and forty	two thousand four hundred and fifty	three thousand one hundred and fifty	five thousand and seven hundred	eleven thousand seven hundred and sixty	seventeen thousand and two hundred	twenty-six thousand four hundred and sixty	thirty-three thousand and four hundred
Maximum water consumption (Kg/h)	one thousand and two hundred	two thousand and four hundred	five thousand	eight thousand	ten thousand and four hundred	thirteen thousand and nine hundred	eighteen thousand and five hundred	twenty-four thousand	thirty-six thousand and three hundred	fifty thousand	sixty-six thousand
Maximum drainage temperature (��)	seventy	seventy	seventy	seventy	seventy	seventy	seventy	seventy	seventy	seventy	seventy
Total length of spindle	four hundred and forty-eight	five hundred and ten	five hundred	five hundred	six hundred	six hundred	eight hundred and two	one thousand two hundred and ninety-six	one thousand two hundred and ninety-six	one thousand four hundred and forty	one thousand four hundred and forty
Main spindle cone length and taper	63,1:30	70,1:30	70,1:30	70,1:30	70,1:30	80,1:30	100,1:30	192,1:30	192,1:30	170,1:30	170,1:30
The height from the center of the spindle to the bottom surface of the base	two hundred and fifty-five	three hundred	three hundred	three hundred	three hundred and fifty	three hundred and fifty	six hundred and fifty	seven hundred and sixty	seven hundred and sixty	eight hundred and forty	eight hundred and forty
Dimensions of the dynamometer (length x width x height)	450×400×370	655×530×430	640×536×460	640×536×460	760×620×543	760×620×543	1078×845×905	1598×.51310×1135	1598×.51310×1135	1452×1558×1310	145×21558×1330
Dimensions of the base (length x width x height)	640×400×90	640×394×110	640×400×100	640×400×100	760×490×120	760×490×120	1060×820×310	1476×1200×260	1476×1200×260	1256×1559×260	1256×1559×260
Position of anchor screw hole	590×340	600×335	580×330	580×330	700×420	700×420	990×650	1350×1074	1350×1074	1421×1116	1420×1116 (×690)
Net weight of dynamometer (Kg)	one hundred and seventy	one hundred and eighty	two hundred	two hundred	four hundred and ten	four hundred and thirty-five	nine hundred and fifty	two thousand and eight hundred	two thousand and nine hundred	three thousand and two hundred	three thousand and three hundred
Maximum spindle speed (r/min)	nine thousand	seven thousand and five hundred	seven thousand and five hundred	five thousand	five thousand	three thousand and five hundred	three thousand	three thousand	three thousand	three thousand	three thousand
moment of inertia (Kg.M2)	zero point zero one two	zero point zero four one	zero point zero six five	zero point zero seven four	zero point four eight zero	zero point five one one	zero point seven two one	three point six	four	six point eight	seven point one

YP series (pressure type) hydraulic dynamometer

[dynamometer]CWZ series eddy current dynamometer system

2026-6-11 14:40:13

1 Overview
The CWZ series motor testing system is an automatic testing system composed of eddy current dynamometer, torque and speed sensor, controller, etc. This system can replace hydraulic dynamometer, DC generator set and other testing equipment, and is used for measuring torque, speed, power and testing the overall characteristics of power machinery such as ordinary three-phase asynchronous motors, variable frequency speed regulating three-phase asynchronous motors, diesel engines, gasoline engines, gearboxes, etc. It has become a necessary equipment for type testing. To meet the testing needs of different products, the system configuration may vary. For different project testing and data collection requirements, different configuration schemes can be selected to maximize the satisfaction of different user needs.
The system is equipped with CW type eddy current dynamometers of different specifications, which can be used for factory inspection, type testing, maintenance testing, etc. of small and medium-sized motors. This mainly introduces the loading test device for 15-1000KW motors. The same method can be used for testing motors below 15kW and 900kW-2200kW, and will not be described in detail. The control system uses a computer as the data processor, which can organize and print the test data. The braking power supply using an IGBT device as the load can have a wide adjustment range.
The entire system consists of a loading test bench and a detection control system, as shown in the figure. The test bench mainly consists of a torque speed sensor that detects the torque, torque, and speed of the electric motor, an eddy current brake (also known as a dynamometer) that loads the electric motor, and connecting machinery. To reduce the noise during system operation, the dynamometer adopts a water-cooled type, and larger testing systems should also have a water circulation system to reduce operating costs.

2 Main functions
2.1 The control system has manual and automatic loading and testing modes, which means that the load can be manually, fixed-point, or automatically adjusted. The test data is displayed on the microcomputer, and dynamic curves (including the unstable zone of asynchronous motors) can be automatically drawn, test reports can be generated, qualification judgments can be made, and test results can be saved automatically. The characteristic curves of different motors can also be compared within the same interface. When conducting temperature rise tests on electric motors, the operation and stop of the tested motor can be directly controlled by a microcomputer.
2.2 Adopting modular design, the system can combine different types of products according to users' different requirements. When the tested product has different parameter indicators and functions, it only needs to be replaced or tested through settings. A detection and control system can also be shared among multiple loading test benches to reduce costs.
2.3 Constant torque, constant power, or constant current control modes can be selected.
2.4 Main technical parameters of eddy current dynamometer Input speed (r/min) 200-3600 (3000) 200-5000 Rated torque (N.m) 5-14000 Absorbed power (kW) 0.75-2200 (i.e. power measurement range)
2.5 Torque and speed sensor: Adopting a brushless contact torque and speed sensor, it can be applied to a wide range of speeds. It can provide stable testing accuracy and ideal testing range, and its stable testing accuracy and reliable performance ensure the accuracy of the testing system. The rated torque and speed of the sensor can be configured according to system requirements, and its series specifications are complete, which can meet the needs of various products. The range of available specifications is as follows:
Rated torque (N.m) 0.2-30000
Rated speed (r/min) 0-20000
The sensor testing accuracy is divided into 0.1 level and 0.2 level, and its static calibration error is: static calibration error
0.1 level ��± 0.1%,
Level 0.2 �� ± 0.2%.

CWZ series eddy current dynamometer system

[dynamometer]CW series eddy current dynamometer

2026-6-11 14:40:05

I. Overview
The CW series eddy current dynamometer, also known as electromagnetic dynamometer, uses the principle of eddy current loss to absorb power. The dynamometer consists of a dynamometer, controller, and force measuring device, which can measure the output torque and speed of the tested machinery, thereby obtaining the output power. It can replace magnetic powder clutches, hydraulic dynamometers, DC generator sets, etc., and is used to measure the performance of various power machinery such as electric motors, gasoline engines, diesel engines, gearboxes, etc. It has become a necessary equipment for type testing. Compared with other dynamometer devices, the CW series dynamometer has higher reliability, practicality, and stability.

2�� Main features
1. Simple structure, stable operation, low price, and convenient use and maintenance;
2. Using water cooling, with low noise and minimal vibration;
3. Wide input speed range, suitable for type testing of various motors and power machinery such as variable frequency speed regulation;
4. The controller adopts a single-phase AC power supply, with low control power;
5. Torque measurement can be carried out using electronic scales, pressure sensors, or high-precision torque and speed measuring instruments, which are suitable for situations with different measurement accuracies.
6. The device can also be used as a brake, with a large braking torque

3�� Usage environment
1. The maximum ambient temperature shall not exceed 40 ��
2. Altitude not exceeding 1000m
When the ambient temperature is 30 ��, the relative humidity should not exceed 85%

4�� Cooling
1. Water quality
The cooling water is tap water, general industrial water, groundwater, or preliminarily filtered river water. The water should not contain solid particles or other impurities with a diameter of more than 1mm, with a pH value of 6-8 and a hardness of less than 200ppm, with a maximum value of 300ppm.
2. Water pressure
The inlet pressure is generally not less than 0.05Mpa and not more than 0.2Mpa. This product does not have strict requirements for water pressure. It is recommended that users add an inlet valve when installing and using this product to facilitate the adjustment of water volume.
3. Water volume
The cooling water volume is shown in the parameter table, and the inlet water volume is adjusted according to the different test powers.
4. Water temperature
The maximum inlet temperature should not exceed 30 ��, and the outlet temperature should be around 50-60 ��. The cooling water volume can be adjusted according to the outlet temperature during use.

5�� It can be controlled with a matching dynamometer or with an adjustable DC power supply. The electrical performance of the controller should match the technical parameters of the dynamometer.

6�� Key points for the correct use of CW series eddy current dynamometer
1. Select the dynamometer correctly according to the rated torque.
2. Before operation, the dynamometer must be inspected to verify whether the nameplate data meets the required specifications, whether the fasteners are loose, whether the wiring of each terminal block is correct, and whether the contact is good. If there are defects or defects, they should be eliminated or replaced. Use a 500 volt megohmmeter to check the insulation resistance of the excitation winding and the stator winding of the tachometer generator, which should not be less than 12M ��.
When installing the product, extend the shaft horizontally, place the foot flat, and tighten the anchor bolts. Connect the input shaft to the tested machine or torque speed tester, and connect the output shaft to the force measuring rod.
4. Connect the connecting wires according to the terminal markings (as shown in the figure), and ground the ground wire on the grounding screw.
5. During installation, connect the inlet and outlet pipes according to the markings on the dynamometer. An inlet valve should be added in front of the inlet pipe to adjust the water flow. When unmarked, the inlet and outlet can be interchanged.
Before loading (adding excitation), cooling water must be introduced first, and after unloading (removing excitation) for five minutes, the cooling water can be disconnected.
7. Start the tested machinery and wait for it to operate normally. Connect the excitation output, adjust the excitation current, measure the output torque, and pay attention to subtracting the initial value.
8. During operation, pay attention to monitoring the outlet water temperature. If it exceeds 70 ��, increase the cooling water volume.
7�� Maintenance and repair
1. The surroundings of the dynamometer should be kept clean, and the inlet and outlet should be kept unobstructed.
After the dynamometer is put into operation, lubricating grease (molybdenum disulfide composite calcium based grease) should be regularly added to the bearings.
After two years of operation, major repairs should be carried out to clean the bearings and replace the lubricating grease. If the bearings are found to be damaged, they should be replaced.

model	Input speed (r/min)	Rated torque (N.m)	Absorption power ��kW��	excitation voltage ��V��	Excitation current (A)	Cooling water volume (L/min)	weight (kg)	remark
CW5	120~3600	five	zero point seven five	< 90	< 5	one	forty-five	Speed 1500r/min Below is Constant torque; 1500r/min The above is constant power
CW5B							thirty-six
CW10		ten	one point five				sixty
CW10B							forty
CW20		twenty	three			two	one hundred
CW20B							fifty-two
CW50		fifty	eight			five	one hundred and seventy
CW50B							eighty-three
CW100		one hundred	fifteen			eight	two hundred and seventy
CW100B							one hundred and twenty
CW200	200~3200	two hundred	thirty			fifteen	four hundred and thirty
CW200B							two hundred and ten
CW300		three hundred	forty-five			twenty-five	six hundred and ten
CW300B							three hundred
CW650		six hundred and fifty	one hundred			forty	one thousand
CW650B							seven hundred and thirty
CW1000B	300~3000	one thousand	one hundred and fifty	<180	<8	one hundred and twenty	one thousand and two hundred
CW2000		two thousand	three hundred and fifteen		<10	one hundred and sixty	two thousand two hundred and forty
CW2000B							two thousand four hundred and seventy
CW3000B		three thousand	four hundred and seventy		<20	two hundred and forty	three thousand and five hundred
CW6500B		six thousand and five hundred	one thousand		<40	four hundred	four thousand and six hundred
CW10000B		ten thousand	one thousand five hundred and seventy		<60	eight hundred	five thousand and eight hundred
CW14000B		fourteen thousand	two thousand and two hundred		<90	one thousand and one hundred	eight thousand and two hundred

CW series eddy current dynamometer