Yuhuan CNC Machine Tool Co., Ltd.

产品中心

YHJ direct drive electric spindle

Suitable for supporting the use of precision processing equipment. Large torque, high precision integrated electric spindle, used in CNC grinding machines, machining centers, milling machines, drilling machines, special machine tools and other equipment, to provide high precision, low temperature rise of the best performance, dynamic balance accuracy G0.4.

Keywords

Precision grinding, intelligent manufacturing technology, integrated solutions

Classification

Key functional components

Recommended Products

Message consultation

Typical Machining Parts

Equipment Highlights

Main features

1. The principle of this machine adopting silicon wafer automatic rotation grinding method is as follows: the workpiece turntable slightly larger than the silicon wafer is adopted, the workpiece is placed in the center of the workpiece turntable through the vacuum suction cup, the edge of the grinding wheel is adjusted to the center position of the workpiece, the workpiece and the grinding wheel are rotated around their respective axes to cut in and reduce the thickness, the contact length, contact area and cutting angle between the grinding wheel and the work are unchanged, the grinding force are constant, and the machining state, it can avoid the phenomenon of convex and collapsed edges in the workpiece. Especially for the thinner workpiece performance is more obvious.

2. The upper and lower grinding spindles adopt air bearing structure. Due to the lack of friction between the stator and the rotor, the degree of wear is minimized, thus ensuring that the accuracy is always stable.

The air bearing has lower resistance, allows higher speeds, and can maintain a lower vibration level at the same time.

4. The precise and repeatable movement of the air bearing spindle makes the surface photometry reach a very good level. Since the stiffness is provided by a consistent flow of air through the bearing, the forces experienced by the rotor from the external load are distributed steadily over all points as it rotates. This feature is closely related to the production of good surface luminosity during grinding.

5. The base adopts casting and marble, and the Z-axis feed column adopts marble to improve the overall rigidity of the machine and the stability of the machine.

Technical parameters

Technical parameters

Project	Model
Project	Sp38	Sp50	Sp56	Sp63-C
Motor type	permanent magnet synchronous	permanent magnet synchronous	permanent magnet synchronous	permanent magnet synchronous
Rated power	11.5kW	31kW	30kW	30kW
Rated voltage	380V	380V	380V	380V
Rated current	37A	60A	60A	65A
Rated torque	18N.m	130N.m	84N.m	42N.m
Rated speed	7500rpm	2300rpm	3000rpm	6800rpm
Maximum speed	10000rpm	3500rpm	4500rpm	8000rpm
Bearing	rolling bearing	rolling bearing	rolling bearing	rolling bearing
Lubrication	Grease	Grease	Grease	Grease
Cooling	forced water cooling	forced water cooling	forced water cooling	forced water cooling
Installation and connection mode	Vertical side mounting	Vertical side mounting	Horizontal with flange	Vertical with flange
Shaft end interface	ф38（1:7.5）	F50	F56 (1:7.5)	HSK63-C
End-face runout	≤ 0.002	≤ 0.002	≤ 0.002	≤ 0.002
radial runout	≤ 0.002	≤ 0.002	≤ 0.002	≤ 0.002
Mode of use	Vertical/Inclined	Vertical	Level	Vertical/Inclined
Sealing mode	Gas seal	Gas seal	Gas seal	Gas seal
Temperature monitoring	KTY PTC	KTY PTC	KTY PTC	KTY PTC
Dynamic balancing machine grade	G0.4	G0.4	G0.4	G0.4
Online balancing device	Optional	Optional	Optional	Optional