OMVS Motor

 

Hydraulic motors are an essential component of modern machinery. They are used to convert hydraulic energy into mechanical energy to perform tasks such as rotating a shaft or driving a vehicle. With a wide range of hydraulic motors available in the market, selecting the right one can be a daunting task. In this article, we will discuss what factors to consider when choosing a hydraulic motor.

 

1. Load

The load defines the amount of work that the motor will need to perform. It is essential to consider the load's characteristics, such as speed, torque, and power requirements, when selecting a hydraulic motor. If the motor does not provide the required power, productivity and performance may suffer. Therefore, it is crucial to select a hydraulic motor that can handle the load requirements for optimum performance.

 

2. Speed

The speed of the hydraulic motor is another critical factor when selecting a motor. The motor's speed should be compatible with the speed requirements of the application. If the motor's speed is too slow or too fast, it may result in inefficiency, lost productivity, and even damage to the system. A hydraulic motor that provides the required speed range is therefore necessary.

 

3. Control

The ability to control the hydraulic motor's speed and torque is a vital consideration. A motor with variable speed and torque control will provide greater precision and efficiency. The control system chosen should be able to adjust the motor speed and torque according to the load requirements.

 

4. Environment

The environment in which the motor will operate is also essential. Certain environments, such as those that are dusty, wet or corrosive, can cause motor damage. These environments require motors with additional protection or sealing systems to prevent damage. Other aspects such as temperature range and altitude should also be considered to ensure that the chosen motor can operate efficiently.

 

5. Power source

The power source for the hydraulic motor must also be considered. The power source can be an electric motor, an internal combustion engine, or a separate hydraulic pump. The motor's type and size should match the power source's capacity to optimise performance and productivity.

 

6. Cost

The cost of the hydraulic motor is another significant factor to consider. While it may be tempting to choose the cheapest motor available, the motor's quality and durability should not be sacrificed in favour of cost. It is essential to balance the cost with the motor's performance and the overall system's productivity to make a wise investment decision.

 

In conclusion, when selecting a hydraulic motor, several factors should be considered to ensure optimal performance and productivity. Careful consideration of factors such as load, speed, control, environment, power source, and cost will ensure that the chosen motor will meet the application's requirements and provide optimal performance and productivity.

 

 

 

◎ Endface distribution cycloid hydraulic motor;

◎ Advanced column stator and rotor parameters design, with low starting pressure, high efficiency and stable low speed operation;

◎ Advanced shaft seal design,with high back pressure bearing capacity;

◎ Advanced and reliable linkage shaft design,with a long motor service life;

◎ Advanced oil distribu tion mechanism design, with high oil distribution precision and automatic wear compensation;

◎ The motor can be used in series and parallel; when they are connected in series, they should be connected to the external drain pipe.

◎ Multiple installation forms of Flanges, output shafts, ports, and etc.

 

 

Displacement		310	400	500	630	800	1000	1250	1600
Flow, LPM	Cont.	150	150	150	150	150	150	150	150
	Int.	225	225	225	225	225	225	225	225
Speed, RPM	Cont.	435	346	276	216	168	135	110	80
	Int.	653	519	413	324	240	200	160	110
Pressure, MPa	Cont.	20	20	20	20	20	20	16	15
	Int.	25	25	25	25	25	25	20	20
Torque, Nm	Cont.	840	1050	1350	1690	2150	2700	2500	3050
	Int.	1050	1300	1650	2115	2700	3300	3080	3550
Max. allowable back pressure		10MPa

 

◎ The intermittent operating pressure refers to the Max. allowable operating pressure at the motor inlet port, and the continuous operating pressure refers to the pressure difference between the inlet port and the return port.

◎ Do not operate the motor at the Max. speed and the Max. pressure at the same time.

◎ The motor operating time per minute must not exceed 10% under intermittent operating conditions.

◎ Recommended oil: anti-wear hydraulic oil; Viscosity: 37-73cst; Oil cleanliness: IS018/13.

◎ Max. oil temperature: 80℃.

◎ The series motor adopt special imported shaft seal assembly. The Max. allowable back pressure of the motor can be up to 10MPa; however, in order to obtain the good service life and comprehensive mechanical performances, the back pressure should not exceed 5MPa. If it is exceeded, it is recommended to connect the external drain pipe; when connecting the external drain pipe, ensure that the motor is always filled with oil. When connecting the external drain pipe, in addition to maintaining a low back pressure, the wear contaminants generated inside the motor can be removed and a certain cooling effect can be achieved.

◎ There should be a running-in period before the motor is operated at full load. It is recommended to run for 1h at 30% of the Max. operating pressure.

 

 

 Cont.    Int.

 

310 cc/r

		Pressure difference, ΔBar
		3.5	7	10	14	18	20	24
Flow, LPM	10	140	294	440	610	742	845	1000
		26	24	23	22	20	17	14
	20	153	314	466	636	787	895	1070
		55	54	53	52	51	48	44
	50	149	312	465	654	815	935	1112
		145	144	142	140	137	133	127
	75	143	304	458	642	816	940	1119
		220	218	215	211	207	202	195
	100	136	297	452	636	810	936	1108
		294	292	290	287	283	278	270
	125	123	286	442	626	799	921	1093
		368	366	364	361	357	352	345
	150	114	275	435	615	788	906	1078
		445	443	441	437	430	422	410
	160	107	268	430	608	780	895	1070
		475	473	470	466	460	452	439
	200	82	249	412	593	758	871	1047
		596	594	590	584	576	565	544

 

400 cc/r

		Pressure difference, ΔBar
		3.5	7	10	14	18	20	24
Flow, LPM	10	183	385	568	776	968	1101	1292
		20	20	19	18	17	16	14
	20	196	398	590	815	1010	1152	1346
		44	44	43	42	40	39	37
	50	200	402	603	842	1040	1186	1430
		114	113	113	112	110	108	103
	75	195	394	596	838	1043	1188	1432
		175	173	170	166	163	1579	152
	100	172	385	593	827	1036	1184	1425
		236	235	233	231	227	223	215
	125	167	374	583	816	1021	1177	1413
		296	294	291	288	282	275	268
	150	158	361	559	801	1008	1165	1390
		355	354	352	349	344	335	324
	175	143	346	553	784	989	1145	1377
		416	414	411	407	403	396	388
	200	118	331	536	770	969	1128	1356
		475	473	469	463	455	448	439
	240	82	301	506	740	943	1104	1332
		571	569	565	548	539	530	520

 

500 cc/r

		Pressure difference, ΔBar
		3.5	7	10	14	18	20	24
Flow, LPM	10	242	486	696	959	1190	1353	1607
		17	17	16	16	15	13	11
	20	245	501	738	1003	1232	1394	1658
		36	35	35	34	33	32	29
	50	240	500	758	1025	1270	1449	1743
		93	92	91	90	88	85	80
	75	233	498	752	1030	1288	1475	1766
		140	139	137	135	132	127	120
	100	228	491	748	1026	1289	1472	1760
		189	187	185	182	182	173	166
	125	220	483	742	1014	1280	1460	1745
		237	236	234	231	227	223	216
	150	201	465	723	1008	1250	1429	1736
		287	286	284	281	276	270	260
	175	182	446	711	997	1238	1406	1715
		335	334	332	329	325	320	310
	200	161	423	676	974	1218	1385	1697
		384	383	381	378	374	366	354
	240	120	378	622	921	1172	1340	1650
		461	459	457	454	450	444	432

 

The motor is highly efficient at all operating points with specified data, but it is recommended to operate it in the continuous operating area for the optimum efficiency and long service life.

 

630 cc/r

		Pressure difference, ΔBar
		3.5	6	9	12	15	18	21
Flow, LPM	10	280	522	812	1100	1268	1549	1784
		14	13	13	12	12	11	10
	20	288	552	839	1101	1315	1607	1864
		28	28	27	27	26	24	22
	50	289	555	868	1137	1364	1682	1956
		72	72	71	69	68	66	62
	75	270	548	863	1120	1352	1680	1964
		109	108	106	104	102	99	94
	100	264	538	856	1093	1350	1674	1965
		146	145	143	141	138	135	130
	125	251	516	837	1071	1336	1659	1950
		184	183	181	179	177	173	168
	150	270	495	817	1063	1330	1650	1928
		221	220	219	217	215	212	205
	175	210	485	796	1052	1300	1636	1908
		259	258	257	254	250	246	241
	200	182	469	751	1018	1280	1611	1883
		297	297	295	293	290	284	273
	240	130	416	712	978	1237	1563	1835
		358	357	355	351	346	340	332

 

The above data are measured at the oil temperature of 50℃ and with 68# anti-wear hydraulic oil; for different motors, the data will be slightly different.

 

 

 Cont.    Int.

 

800 cc/r

		Pressure difference, ΔBar
		2.5	5	8	10	13	16	18
Flow, LPM	10	278	565	830	1095	1405	1712	1915
		11	10	10	9	8	8	7
	20	282	571	845	1150	1456	1783	1994
		23	22	22	21	20	18	16
	50	288	582	856	1162	1463	1790	2001
		60	59	57	56	54	52	48
	75	269	580	855	1165	1465	1786	1993
		91	90	89	87	84	81	77
	100	251	566	840	1140	1448	1767	1985
		122	121	120	118	115	111	105
	125	242	535	824	1118	1427	1739	1976
		153	152	150	147	143	139	133
	150	236	526	808	1102	1401	1714	1959
		185	183	181	178	174	169	163
	175	215	504	793	1079	1377	1698	1936
		216	214	212	209	206	203	193
	200	197	468	765	1063	1362	1681	1913
		247	245	243	240	237	232	225
	240	118	388	713	1020	1318	1637	1838
		297	296	295	293	288	283	277

 

The motor is highly efficient at all operating points with specified data, but it is recommended to operate it in the continuous operating area for the optimum efficiency and long service life.

 

1000 cc/r

		Pressure difference, ΔBar
		2.5	5	7	10	14	16
Flow, LPM	10	312	640	971	1400	1978	2259
		9	9	9	8	7	6
	20	320	648	978	1410	1980	2270
		28	27	26	25	23	21
	50	326	655	992	1422	2015	2280
		47	46	45	43	41	38
	75	318	642	987	1425	2003	2276
		72	71	70	68	66	63
	100	309	634	983	1418	1994	2243
		98	97	95	93	90	86
	125	303	624	975	1409	1988	2224
		123	122	120	117	114	110
	150	278	602	961	1368	1963	2208
		149	148	146	144	140	133
	175	264	580	946	1338	1925	2159
		174	172	170	166	162	155
	200	230	556	912	1300	1891	2105
		199	196	193	190	185	178
	240	166	513	867	1267	1825	2034
		240	237	233	229	225	218

 

The above data are measured at the oil temperature of 50℃ and with 68# anti-wear hydraulic oil; for different motors, the data will be slightly different.

 

Displacement, cc/r	310	400	500	630	800	1000	1250	1600
L mm	235.8	242.3	251.8	261.8	275.8	291.8	307.8	341

 

Standard direction of rotation: When facing shaft end of motor, shaft to rotate clockwise when the oil is fed at port A and discharged at port B, and vice versa.

 

 

 

Note: When a motor is ordered, the model and product number should be selected in the Motor Ordering Information based on the reference dimensions in the above figure; if the corresponding Dimensions and Mounting Data and product number can not be found in the ordering specifications, please contact the company marketing department.

 

 

 

Port number	Y01	Y02	Y03
Main port D	M33×2	G1	15/16-12
External drain port C	M14×1.5	G1/4	7/16-20

 

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