敏 High-precision CNC Vertical Universal Grinding Machine
It is suitable for the processing of parts with high precision and high surface quality requirements in the manufacturing industry of equipment, military, energy, aerospace and other manufacturing industries, with the goal of processing the inner hole, outer circle, cone surface, end face and special-shaped surface profile of disc, ring and set parts, and the processing accuracy level can reach IT3~IT2 level, and the surface roughness ≤ Ra0.2.

Technical characters
1. The X-axis, C-axis, Z-axis, and B-axis can realize two-axis to four-axis linkage, and can realize the processing of the inner and outer
contours, conical surfaces, end surfaces, etc. of the workpiece.
2. Equipped with 3 synchronous built-in electric spindles (SP1, SP2, SP3), the workstation conversion can be realized, and the grinding
head covers a wide range of speed and rigidity, which effectively improves the processing efficiency and processability.
3. The B-axis can achieve high-precision, arbitrary angle positioning, and the repeated positioning accuracy is ±2.5″, which can realize
arbitrary conical surface processing, avoiding the shortcomings of linkage interpolation processing of conical surfaces and reducing
grinding wheel loss.
4. The X-axis and C-axis are liquid hydrostatic, which ensures high precision and high rigidity while effectively solving the instability
of traditional guide rail transmission and the phenomenon of low-speed creeping caused by friction (the friction coefficient of
hydrostatic guide rail is only about 0.005, and that of linear guide rail is generally 0.15).
5. The X-axis adopts a direct-drive motor, which has no reverse clearance and can completely solve the problems of quadrant bulge.
6 , SP1, SP2, SP3 are equipped with online dynamic balancing and AE devices, which effectively solve the grinding vibration and abnormal
collision caused by the imbalance of the grinding wheel, and improve the grinding surface quality and the safety of the machine tool.
7. The B axis is equipped with a clamping system with a rated locking torque of up to 2900N.m to ensure the rigidity of the grinding
wheel when grinding at a fixed angle.
8. The online automatic measurement function can realize automatic online measurement and automatic tool setting; the probe calibration
device is close to the detection position, and the measurement accuracy is high.
9. Equipped with two sand dressing methods, diamond roller dressing and diamond pen dressing, it can realize the dressing of the grinding
wheel plane and curved surface.
10. Human-computer interaction software with 3D simulation, a full-featured CNC program package, including end face grinding, internal
circle (inner contour) grinding, external circle (outer contour) grinding, grinding wheel shaping, online measurement and calibration and
other functions.
| Item | Parameter | Item | Parameter |
| Table size | φ800mm | The workbench is beating | Radial, endface ≤ 0.001mm |
| Max grinding height | 650mm | B-axis rotation angle | 0~285° |
The max load capacity of the workbench | 1500 Kg | X-axis movement speed(continuous speed change) | 0.01 ~10m/min |
| Table speed (stepless) | 0.01-100 rpm | Z-axis movement speed(continuous speed change) | 0.01 ~8m/min |
The max speed of the spindle andInterface (internal and external cylindrical grinding head) | 8000rpm,HSK63-C (18000rpm optional) | X and Z axis positioning accuracy Repeatability accuracy | ±0.003mm ±0.002mm |
The max speed of the spindle and Interface (surface grinding head) | 4500rpm、N56 | Spindle runout | Radial, endface ≤ 0.001mm |
Performance
High-precision CNC universal vertical grinding machine - product range
Model | Turret diameter (mm) | Maxi swing diameter(mm) | Max workpiece height(mm) | Max workpiece weight(Kg) |
| YHJMKG2835 | φ350 | φ500 | 400 | 800 |
| YHJMKG2860 | φ600 | φ750 | 500 | 1000 |
| YHJMKG2880 | φ800 | φ1000 | 650 | 1500 |
| YHJMKG28100 | φ1000 | φ1200 | 650 | 2000 |
| YHJMKG28125 | φ1250 | φ1500 | 650 | 3000 |
| YHJMKG28160 | φ1600 | φ1850 | 850 | 5000 |
| YHJMKG28200 | φ2000 | φ2300 | 1050 | 5000 |
Certificate

Our R & D team establish a long - term partnership with National University of Defense Technology , Dalian University of Technology , Hunan University , Central South University , and other renowned institutions . Yuhuan is also research base for Hunan University’s doctoral student,get 5—9 patents per year .
- has got36 related patents
- A certificate of international standard products in 2005
- has passedISO9001 : 2000 international quality system certification, has estabished corporate product standards
Packing and Transportation

1.Moisture-proof packaging+Wooden Box.
2.Special packing requirements available.
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