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Kern Micro HD+
The plus in the name of the Kern Micro HD+ stands for the increase in axial and radial run-out accuracy, dynamics, rigidity and thermal stability, thereby enabling the applications of tomorrow. The Micro HD+ promises maximum process stability in the versatility of combined complete machining, freedom from wear and automated series production of high-precision components.
At a glance
- Compact design and small footprint of less than 5 sqft / 5 m2
- Supreme machine stability with the advanced Kern temperature management
- High dynamics and productivity through integrated linear motor drives
- Best quality and wear-free due to innovative Kern micro-gap hydrostatics
- High dynamics and productivity with proven components and processes
- Multi-shift operation without operators and with integrated tool-changer for up to 210 tools and max. 60 workpieces
- Certified interfaces for additional accessories and automation systems
The revolution in the rotary and swivel axis
The Micro HD+ is the most precise, dynamic and productive milling machine in the industrial 5-axis segment due to the following features.
The high-precision bearing components, which are manufactured in-house with tolerances in the sub-µm range on a Kern machine, offer the best conditions for outstanding axial and radial run-out accuracy. The hydrostatic bearing creates an additional averaging effect of the bearing components, which neutralizes any remaining form deviations and shifts the running accuracy into the nanometer range.
By installing more powerful motors with higher nominal and peak torques as well as a topology-optimized structure, the swivel axis of the Kern Micro HD+ achieves significantly higher dynamics than CNC machines with comparable turning and swivel units. In combination with the Kern temperature management, it is therefore possible to manufacture dynamically and at high speeds with excellent machining accuracy over a longer period of time.
A key advantage of the hydrostatic rotary and swivel axis with micro-gap is its rigidity. Combined with topology optimization of the housing and reinforcement of the swivel housing, we guarantee maximum stability. The use of hydrostatic bearings also contributes significantly to rigidity. This system is designed to ensure maximum precision even under high loads.
Another advantage is the increased thermal stability. While only the bearing plate and stator are usually cooled in variants with roller bearings, the HD+ also actively cools the bearing and housing in the swivel axis and the bearing shaft, bearing and stator in the rotary axis. The improved temperature management significantly increases the performance of the machine, especially in changing machining situations and demanding conditions.
Product Details
| Axes: travels | |
| X-axis | 350mm |
| Y-axis | 220 mm |
| Z-axis | 250 mm |
| B-axis | -110° to +110° Option -180° to +110° |
| C-axis | 360° endless |
| Axes: Dynamics | |
| vmax X, Y, Z | 60 m/min |
| amax X | 10 m/s² |
| amax Y | 15 m/s² |
| amax Z | 20 m/s² |
| vmax C | 200 1/min |
| full load torque B | 648 Nm |
| constant torque B | 360 Nm |
| Holding torque B-axis (clamped) | 300 Nm |
| full load torque C | 135 Nm |
| Continuous torque C | 75 Nm |
| Automatic tool changer HSK 25 | |
| 101 positions, 209 positions | |
| Max. Tool diameter for automatic change | 70 mm (each 2nd tool rack position not in use) |
| Max. Tool length for automatic changer incl. tool holder | 150 mm |
| Automatic tool changer HSK 40 | |
| 90 positions, 186 positions | |
| Tool changing time | < 3 s |
| Chip to chip time | < 4.5 s |
| Max. Tool diameter for automatic change | 70 mm (each 2nd tool rack position not in use) |
| Max. Tool length for automatic changer incl. tool holder | < 150 mm |
| Numeric control | |
| Heidenhain TNC7 | |
| Spindle HSK 25 | |
| nmax | 50,000 1/min |
| Torquemax (S1) | 1.6 Nm |
| Powermax (S1) | 6 kW |
| Spindle HSK 40 | |
| nmax | 42,000 1/min |
| Torquemax (S1) | 5.9 Nm |
| Powermax (S1) | 15 kW |
| Clamping system on 5th axis | |
| EROWA Power Chuck P | |
| System 3R Magnum | |
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