Hollow Shaft Electric Motors for Hydraulic Pump

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Website: http://hydraulicparts-en.com/3-hollow-shaft-electric-motor.html

Specifically designed to drive hydraulic pumps, the hollow shaft electric motor plays a crucial role in industrial applications, particularly in hydraulic systems requiring precise control and powerful output.

Features

Internal shaft design: The hollow shaft motor features an internal shaft structure, allowing it to directly connect with the hydraulic pump without the need for additional couplings. This simplifies installation, saves space, and reduces both noise and heat.
High-precision fit: The mating surfaces of the motor and pump are machined with high precision, ensuring coaxiality. This not only improves efficiency but also reduces maintenance requirements.
Simple & efficient structure: Optimized specifically for hydraulic pumps, its simple design ensures high operational efficiency, low noise, and suitability for long-term stable operation.

Yes, torque can be adjusted by varying the system pressure or by using motors with adjustable displacement. Your dealer can provide adjustable displacement motors and recommend pressure control valves or regulators to achieve the desired performance.

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Unit: mm

4P		6P	Frame	Phase	Image	A	AA	AB	AC	AD	B	BB	C	H	HA	HD	K	L	Net weight (kg)
1/2		1/4	80	Three phase	Image 1	125	35	155	175	138	100	130	51	80	10	170	10	230	13
1		1/2	80	Three phase		125	35	155	175	138	100	130	53.5	80	10	170	10	235	15.5
2		1	90L	Three phase		140	40	175	196	147	125	156	52	90	11	190	12	270	23.5
3		2	100L	Three phase	Image 2	160	40	196	219	162	140	177	65	100	12	210	12	303	31.5
5		3	112M	Three phase		190	40	228	235	164	140	172	57.5	112	13	230	12	290	38.5
71/2		5	132S	Three phase		216	45	250	268	191	140	175	77	132	16	266	12	345	60
10		71/2	132M	Three phase		216	45	250	268	191	178	213	75	132	16	266	12	378	70
15		10	160M	Three phase	Image 3	254	50	300	318	253	210	250	87	160	18	320	14	479	115
20		15	160L	Three phase		254	50	300	318	253	254	300	87	160	18	320	14	523	140
25	30	20	180MC	Three phase		279	85	356	354	303	241	300	105	180	24	360	15	547	180/220
40		2530	180LC	Three phase		279	85	356	354	303	279	330	105	180	24	360	15	585	240
1/2			80	Single phase	Image 1	125	35	155	175	138	100	130	53.5	80	10	170	10	265	15
1			90L	Single phase		140	40	175	196	155	125	157	52	90	12	190	10	290	24
2			90L	Single phase		140	40	175	196	155	125	157	64	100	12	190	10	300	28
3			112M	Single phase	Image 1	190	45	228	228	174	140	175	73.5	112	12	230	12	385	425
5			112M	Single phase	Image 1	190	45	224	245	185	140	175	95	112	14	230	12	420	48

(Unit: mm)

4P	6P	Frame	Phase	AC	AD	L	LA	M	N	P	S	T	Net weight (kg)
1	1/2	80	Three phase	177	139	248	10	180	130	205	12	12	16.5
1	-	90	Single phase	195	154	280	10	200	130	230	12	10	24
2	1	90	Three phase	195	148	258	10	200	130	230	12	10	24
2	-	90	Single phase	196	155	306	10	200	130	230	12	10	30
3	2	112	Three phase	230	166	285	11	215	180	250	14	9	32
7.5	5	132	Three phase	268	195	345	13.5	265	230	300	15	5	61
10	7.5	132	Three phase	268	195	380	13.5	265	230	300	15	5	71

(Unit: mm)

4P	6P	Frame	Phase	AC	AD	L	LA	M	N	P	S	T	Net weight (kg)
1/2	1/4	71	Three phase	157	130	257	11	130	110	160	11	-	12.5
1	1/2	80	Three phase	177	135	282	12	165	130	200	12	13	17
3	-	112	Single phase	230	163	335	12	215	180	250	15	4	42.5
5	3	112	Three phase	230	163	318	10	215	180	250	15	4	40
15	10	160	Three phase	318	250	509	20	300	250	350	19	5	106
20	15	160	Three phase	318	250	553	20	300	250	350	19	5	130

Applications

Widespread application: Widely used as a power source in hydraulic systems across various fields, including automotive, construction machinery, machine tools, mining, woodworking, cold presses, punching machines, and agricultural machinery.

Hydraulic system drive: In the boom joints of construction machinery like excavators and loaders, although hydraulic cylinders are the final actuators, their power source comes from a hydraulic pump driven by a hollow shaft electric motor.

Precision control applications: CNC hydraulic presses utilize servo motors for precise control, making them suitable for jig pressing in the motor, automotive parts, home appliance, and electronics industries, as well as for constant pressure systems and testing systems.

Manufacturing pressing & forming: The hollow shaft electric motor provides stable power for the pressing, forming, shallow drawing, shaping, and press fitting of metal or non-metal parts in manufacturing.

Integration with hydraulic systems: The combination of a hollow shaft electric motor and a hydraulic pump is a critical component in modern industrial automation. They convert electrical energy into hydraulic energy to control and drive various mechanical equipment. This combination enables broad force and speed control, adapting to complex working environments and process requirements, making it an indispensable part of heavy industry and precision manufacturing.

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