BM2 Series Hydraulic Motor

The BM2 series hydraulic motor is a versatile and efficient piece of equipment that is widely used in various engineering machinery applications. This hydraulic motor is especially popular in the mining, petroleum, and small lifting industries due to its reliable performance and durability.

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Product Introduction

BM2 Series Hydraulic Motor

One of the key advantages of the BM2 series hydraulic motor is its high efficiency and power output. This motor is capable of delivering higher torque and rotational speed compared to traditional hydraulic motors, which enables it to handle heavier loads and work more effectively in demanding applications.

In addition, the BM2 series hydraulic motor features a compact design that makes it well-suited for use in small spaces or tight areas. Its size and shape also allow it to be used in a variety of different machine configurations, offering flexibility to equipment designers and manufacturers.

Another key benefit of the BM2 series hydraulic motor is its durability and ruggedness. Built to withstand harsh working environments and frequent use, this motor can withstand heavy loads, high temperatures, and other challenging conditions with ease. This results in a long service life and lower maintenance costs, allowing businesses to realize significant savings over time.

With its many advantages, the BM2 series hydraulic motor has become a popular choice for a wide range of industries and applications. In mining, it is widely used in excavators, loaders, and other heavy equipment for its high power output and efficiency. In petroleum drilling, it is used to power the drills and pumps that extract oil from the ground. And in small lifting applications, it is a popular choice for its compact design and reliable performance.

Overall, the BM2 series hydraulic motor is a powerful, versatile, and durable piece of equipment that has earned a reputation for its quality and reliability. Whether you're in the mining, petroleum, or small lifting industries, this hydraulic motor is sure to be a valuable asset to your business.

ZMR Series

Structure Features

◎ Oil distribution mechanism and shaft integrated design and the column stator and rotor structure design, with higher oil distribution precision and mechanical efficiency;

◎ Special dynamic sealing ring design with high back pressure bearing capacity;

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

◎ Small volume, compact structure, and wide applications in plastic machines, agricultural machinery, machine tools, etc.

Main Specification

Displacement, cc/r		50	63	80	100	125	160	200	250	305	400
Flow, LPM	Cont.	38	53	53	53	53	53	53	53	53	53
Flow, LPM	Int.	45	57	57	57	57	57	57	57	57	57
Speed, RPM	Cont.	750	778	635	510	430	329	266	213	171	133
Speed, RPM	Int.	875	832	680	537	450	374	281	226	182	141
Pressure, Bar	Cont.	138	138	138	138	138	124	124	124	103	90
Pressure, Bar	Int.	155	155	155	155	155	138	138	138	124	103
Torque, Nm	Cont.	92	121	150	196	230	271	328	401	417	429
Torque, Nm	Int.	105	137	174	213	256	297	358	410	441	458
Max. allowable back pressure		10MPa

Allowable Lateral Load (At Rated Speed)

◎ 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.

◎ The Max. oil temperature should be 80℃.

◎ With special dynamic seal design, 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. The external drain pipe should be throttled at a certain degree, to maintain a back pressure of more than 3.5 Bar. 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.

ZMR Series Motor Performance Data at Different Operating Points

Cont. Int.

50 cc/r

		Pressure difference, ΔBar
		28	55	69	97	110	124	138	155
Flow, LPM	7.6	18	37	46	64	72
	7.6	125	147	142	134	124
	15.1	18	37	47	66	75	84	93
	15.1	298	290	276	265	261	245	243
	22.7	17	37	47	66	75	84	93	105
	22.7	450	438	434	419	410	407	389	373
	30.3	14	35	44	64	74	83	92	104
	30.3	603	590	583	564	554	545	536	520
	37.9	14	34	44	64	73	83	92	104
	37.9	750	738	732	713	702	696	682	661
	45.4			43	62	72	81	91	102
	45.4			875	859	844	835	819	804

63 cc/r

		Pressure difference, ΔBar
		28	55	69	97	110	124	138	155
Flow, LPM	7.6	22	47	59	80	91
	7.6	111	107	105	96	92
	15.1	24	50	62	87	99	110	122
	15.1	229	216	212	194	190	186	183
	22.7	22	48	60	86	99	111	123	138
	22.7	343	334	321	319	315	291	288	276
	30.3	21	47	60	86	98	111	123	138
	30.3	451	442	431	419	415	412	401	386
	37.9	18	45	58	84	97	110	122	137
	37.9	565	552	547	532	525	512	504	496
	45.4	18	44	57	82	95	109	121	137
	45.4	678	665	658	641	635	623	612	601
	53		42	55	81	95	107	120	135
	53		778	771	753	746	733	723	711
	56.8		40	53	80	93	106	119	135
	56.8		832	826	806	800	786	779	766

80 cc/r

		Pressure difference, ΔBar
		28	55	69	97	110	124	138	155
Flow, LPM	7.6	30	61	77	106	119
	7.6	90	83	80	70	63
	15.1	30	62	78	109	124	140	155
	15.1	185	179	175	166	162	156	150
	22.7	29	61	77	109	124	140	155	174
	22.7	275	267	265	253	248	240	232	221
	30.3	27	60	76	108	124	139	155	174
	30.3	367	359	354	343	338	333	324	313
	37.9	26	58	74	106	122	138	153	173
	37.9	460	450	446	435	428	420	412	399
	45.4	24	56	72	105	121	136	152	172
	45.4	552	543	537	523	515	509	500	487
	53		54	70	102	118	134	150	170
	53		635	630	616	609	599	592	578
	56.8		52	69	101	117	133	149	168
	56.8		680	673	660	650	642	634	619

100 cc/r

		Pressure difference, ΔBar
		28	55	69	97	110	124	138	155
Flow, LPM	7.6	39	79	98	135	152	171
	7.6	71	66	63	56	51	46
	15.1	38	79	99	139	158	177	195
	15.1	146	141	138	131	128	124	118
	22.7	37	78	98	139	158	178	196	219
	22.7	217	211	208	199	195	190	184	174
	30.3	36	76	97	137	157	177	195	218
	30.3	290	284	280	271	267	262	255	245
	37.9	33	74	95	135	155	174	193	217
	37.9	363	355	351	343	337	332	325	315
	45.4	31	72	92	133	153	173	192	215
	45.4	436	429	424	414	409	403	395	384
	53	27	69	90	130	150	170	189	213
	53	510	501	497	487	482	475	469	456
	56.8		67	88	128	148	168	187	211
	56.8		537	532	522	516	510	502	490

125 cc/r

		Pressure difference, ΔBar
		28	55	69	97	110	124	138
Flow, LPM	7.6	48	99	123	168	190
	7.6	88	52	50	45	39
	15.1	47	99	120	140	165	192
	15.1	110	95	80	74	68	50
	22.7	46	97	122	130	155	174	195
	22.7	182	168	157	146	132	120	104
	30.3	45	96	120	156	179	192	250
	30.3	265	200	195	173	162	130	104
	37.9	44	95	119	134	158	176	192
	37.9	389	376	355	329	280	221	189
	45.4	43	94	116	134	168	219	230
	45.4	465	452	410	382	322	286	247
	53	42	92	105	146	186	220	268
	53	531	490	474	413	380	351	314
	56.8		90	91	95	94	210	210
	56.8		501	452	403	372	312	257

160 cc/r

		Pressure difference, ΔBar
		28	55	69	97	110	124	138
Flow, LPM	7.6	61	123	153	209	235	261
	7.6	45	42	40	34	30	25
	15.1	61	124	155	214	242	269	295
	15.1	95	91	90	85	82	78	73
	22.7	59	123	155	215	243	271	297
	22.7	140	136	134	129	125	121	114
	30.3	57	121	152	213	242	270	296
	30.3	187	183	181	175	172	166	259
	37.9	53	117	149	209	239	266	293
	37.9	234	230	227	222	218	211	203
	45.4	49	114	146	206	235	263	291
	45.4	282	277	274	269	265	257	248
	53	45	109	141	201	230	259	287
	53	329	323	321	316	311	305	296
	56.8		107	139	198	228	257	284
	56.8		347	344	339	334	327	318

ZMR Series Motor Performance Data at Different Operating Points

Cont. Int.

200cc/r

		Pressure difference, ΔBar
		28	55	69	97	110	124	138
Flow, LPM	7.6	76	152	187	253	283
	7.6	36	33	31	25	20
	15.1	76	154	191	259	292	324	355
	15.1	77	73	73	68	65	61	55
	22.7	74	154	192	263	294	328	359
	22.7	113	110	109	104	100	95	87
	30.3	72	150	189	260	293	326	359
	30.3	151	148	146	142	139	132	123
	37.9	67	146	185	255	290	323	355
	37.9	189	186	184	181	176	166	156
	45.4	62	142	182	251	286	320	353
	45.4	228	224	222	219	213	204	192
	53	56	137	176	246	291	315	348
	53	266	261	259	256	251	242	229
	56.8		133	172	242	278	313	346
	56.8		281	279	275	269	260	247

250cc/r

		Pressure difference, ΔBar
		28	55	69	97	110	114	125	127
Flow, LPM	7.6	94	187	230	306
	7.6	29	26	24	17
	15.1	95	192	235	319	359	368
	15.1	62	59	59	55	50	49
	22.7	93	191	236	321	361	371	401	410
	22.7	91	89	88	82	78	76	72	71
	30.3	89	187	233	319	359	369	399	408
	30.3	122	120	119	113	108	106	101	99
	37.9	84	182	288	313	356	366	396	406
	37.9	152	150	148	143	136	134	127	125
	45.4	78	175	222	309	351	361	392	402
	45.4	183	180	179	173	166	163	156	153
	53	71	169	216	302	345	356	386	397
	53	213	211	209	202	195	193	185	182
	56.8		165	212	298	341	352	383	394
	56.8		226	224	217	209	207	200	197

305cc/r

		Pressure difference, ΔBar
		28	41	55	69	83	97	110	124
Flow, LPM	7.6	117	176	230	283	329	366
	7.6	23	22	21	19	16	11
	15.1	119	180	237	289	342	391	416
	15.1	49	48	48	47	47	44	41
	22.7	116	178	237	290	342	391	417	441
	22.7	74	72	72	71	69	64	62	60
	30.3	110	172	232	285	339	390	414	438
	30.3	98	97	97	96	94	89	86	83
	37.9	105	166	226	280	334	385	410	435
	37.9	122	121	120	120	117	112	108	104
	45.4	98	159	216	271	326	379	404	428
	45.4	146	145	145	145	142	136	131	127
	53	89	151	209	264	318	371	397	423
	53	171	170	170	169	169	159	154	150
	56.8			204	258	313	366	393	419
	56.8			182	181	177	171	165	160

400cc/r

		Pressure difference, ΔBar
		14	28	41	55	69	83	90
Flow, LPM	7.6	71	150	224	290	356
	7.6	18	17	17	16	14
	15.1	70	152	229	302	365	429	458
	15.1	38	38	37	37	36	36	35
	22.7	69	150	228	302	365	427	456
	22.7	57	57	57	55	54	53	52
	30.3	62	140	220	295	358	423	455
	30.3	77	76	75	74	73	72	72
	37.9	53	134	212	288	353	419	452
	37.9	96	96	95	95	94	91	90
	45.4	40	129	204	272	339	408	444
	45.4	114	113	112	111	111	110	108
	53	28	115	194	267	330	400	435
	53	133	132	131	130	129	128	125
	56.8				258	323	394	430
	56.8				141	140	138	137

The above data are measured at the oil temperature of 50 ℃ and with 68# anti-wear hydraulic oil.
The actual test data may vary slightly from the data in the above table.

ZMR Series Motor Dimensions and Mounting Data

Displacement, cc/r	50	63	80	100	125	160	200	250	305	400
L mm	142.5	144.8	148	151.3	156.5	162.5	170.5	179.5	189.5	205.5

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.

ZMR Series Motor - Flange Dimensions and Mounting Data

For the Dimensions and Mounting Datas of output shaft, port and others of ZMR series motor, see ZMP series motor mounting dimensions.

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.

Tel: 0537-2902890 Fax: 0537-2902879

ZMR Series Motor Ordering Information

Port	Output shaft	Flange	Displacement
Port	Output shaft	Flange	50	63	80	100	160	200	250	305	395
Staggered flat port M18×1.5 External drain port M14×1.5	Φ25 straight shaft flat key 8 L=43.2	Rhombic flange, seam allownce Φ80, height 8	160-0370	-0371	-0372	-0373	-0374	-0375	-0376	-0377	-0379
Staggered flat port M18×1.5 No external drain port	Φ25 straight shaft flat key 8 L=42	Rhombic flange, seam allownce Φ80, height 8	160-0360	-0361	-0362	-0363	-0364	-0365	-0366	-0367	-0369
	Φ25 straight shaft flat key 8 L=42	Rhombic flange, seam allownce Φ82.55, height 8	160-0380	-0381	-0382	-0383	-0384	-0385	-0386	-0387	-0389
	Φ25.4 straight shaft flat key 6.35	Rhombic flange, seam allownce Φ82.55, height 8	160-0410	-0411	-0412	-0413	-0414	-0415	-0416	-0417	-0419
Staggered flat port G1/2"BSP External drain port M14×1.5	Φ25.4 straight shaft flat key 6.35	Rhombic flange, seam allownce Φ82.55, height 8	160-0400	-0401	-0402	-0403	-0404	-0405	-0406	-0407	-0409
Staggered flat port G1/2"BSP, no external drain port	Φ25 straight shaft flat key 8 L=42	Rhombic flange, seam allownce Φ82.55, height 8	160-0390	-0391	-0392	-0393	-0394	-0395	-0396	-0397	-0399
	Φ25.4 straight shaft flat key 6.35	Rhombic flange, seam allownce Φ82.55, height 8	160-0420	-0421	-0422	-0423	-0424	-0425	-0426	-0427	-0429
	Φ25.4 straight shaft flat key 6.35 shaft end thread 1/4-20UNC	Rhombic flange, seam allownce Φ82.55, height 8	160-0470	-0471	-0472	-0473	-0474	-0475	-0476	-0477	-0479
Staggered flat port G1/2"NPTF External drain port M14×1.5	Φ25 straight shaft flat key 8 L=42	Rhombic flange, seam allownce Φ82.55, height 8	160-0480	-0481	-0482	-0483	-0484	-0485	-0486	-0487	-0489
Staggered flat port G1/2"NPTF no external drain port	Φ25.4 straight shaft flat key 6.35	Rhombic flange, seam allownce Φ82.55, height 8	160-0430	-0431	-0432	-0433	-0434	-0435	-0436	-0437	-0439
Staggered flat port 7/8-14UNF O-ring, no external drain port	Φ25 straight shaft flat key 8 L=42	Rhombic flange, seam allownce Φ82.55, height 8	160-0460	-0461	-0462	-0463	-0464	-0465	-0466	-0467	-0469
	Φ25.4 straight shaft flat key 6.35 shaft end thread 1/4-20UNC	Rhombic flange, seam allownce Φ82.55, height 8	160-0440	-0441	-0442	-0443	-0444	-0445	-0446	-0447	-0449
		Rhombic flange, seam allownce Φ82.55, height 8	160-0450	-0451	-0452	-0453	-0454	-0455	-0456	-0457	-0459
	Rectangular spline 6D-25.4×21.5×6.25 shaft end thread 1/4-20UNC	Rhombic flange, seam allownce Φ82.55, height 8	160-1490	-1491	-1492	-1493	-1494	-1495	-1496	-1497	-1499

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