H 300
The machine is designed for milling of large batches of pats. The automation system comprises a ring, gantry or robot loader depending on the type of production and parameters of parts. Patented Modul technology allows integrating of auxiliary functions to shorten the time of processing and operations.
- Processing of gears with max. diameter 300 mm and module 8.0
- Compact machine
- Closed frame construction
- High clamping force for shafts
- Direct drive of the milling head and table
- Wet (with coolant) and dry cutting
- Quick chip disposal system excludes thermal deformation of the machine construction
- High-speed integrated loader
- Synchronous loading and clamping
- CNC Siemens 840 D SL
- Safety Integrated and HMI-Pro
- Easy maintenance due to access to the machine from 3 sides
- Integrated workpiece storage (option)
Column with quill and rotary axis
- Radial movement at X -axis is performed using a quill principle
- Milling head is integrated into the main column providing construction rigidness and, as a result, enhancing of processing accuracy.
Working area for dry cutting
- Fully enclosed working area and bed covered with stainless steel sheets provide thermal stability of the machine construction
- Inclined surfaces of the working area provide quick and full disposal of hot chip
- Nozzles supplying compressed air to the working area guarantee quick and full disposal of the smallest chip particles
Tailstock
- Closed frame construction with a cross-beam provides optimal placement of tailstock components
- Ideally suited for processing of gears and shafts
- Leverless control of clamping force
- SK 30 interface of workpiece clamping elements
High efficiency
- Mounting of two hobs in one clamping unit for simultaneous processing of several types of gears
- Highly efficient milling of parts with large modules and maximal material removal
Integrated feed units
- Feed units are integrated into the machine hull for space saving
- Large doors with viewing windows allow easy controlling of status of units and their maintenance
- Valves and electrical components are marked and placed in a convenient order
CDT Technology
CDT technology allows integrating of different auxiliary functions in your gear hobbing machine: chamfering and deburring of gears, centering, radial drilling with position orientation, and other required operations with driven or non-driven tools. One or two CNC controlled tool arms are mounted at the rear side of the counter column. The functions of these arms are integrated into the gear hobbing machine software and allow readjusting, including data feed, adjustment and correction with high efficiency. Thus machining of various types of gears and workpieces with multiple gears in one clamping is possible, e.g. preliminary processing before honing – the first step of milling, chamfering/deburring – the second step of milling. Chamfer cutters with special tool heads can also be used. The basic CDT unit is designed as a multifunctional unit that can be easily readjusted for different auxiliary functions due to easy changing of tool sets or tool heads with standard fixtures. Wide range of types of processing is applied even in small batch production. Models fitted with CDT technology can be equipped with a fast and flexible gantry loader and can be easily integrated into existing manufacturing cells or production lines.
H 300 
H 300 
H 300 Synchro Cut Technology
Innovative Synchro Cut principle is also based on CDT technology. Chamfering/deburring spindles synchronized by CNC are fed parallel to hobbing and function, most of the time, simultaneously with processing. Two-way processing guarantees tooth flank surfaces without burr and further appearance of secondary burr. In addition to high quality of processing the machine time is reduced notwithstanding the additional processing.
H 300 
H 300 
H 300 - planet gear carrier
- pinion shaft
- gear wheel
- pinion gear
High characteristics of milling spindle
- Power of hob spindle 15 kW
- Spindle rotary speed 3500 rpm, optional 5000 rpm
- Table rotary speed 1000 rpm with a direct drive, workpiece hydraulic clamping unit with clamping stroke control, quick changing system as an option
- Main bearing of hob spindle with ø32, ø27 or ø22 collet chuck; counter bearing with SK 25 clamping, movement with a help of hydraulic drive
Table with direct drive
- Integrated hydraulic workpiece clamping unit
- Digital control of clamping stroke
- Optional system of quick changing of workpiece clamping elements
- Spindle power 4.8 kW
- Torque 150 Nm
- Table rotary speed 1000 min-1
Transportation of gears, shafts and tool change
- Multipurpose double clamp for vertical and horizontal positioning of workpieces without additional lifting or tilting units.
- Gantry loader with CNC control is synchronized with clamping units
- Auxiliary lifting unit for convenient and quick changing of heavy tools and clamping units
Gantry loader
- Quick gantry loader is easily combined with transporting lines and magazines
- It can be used both for loading of shafts and gears
- Full CNC control. No manual operations
- Convenient interface
- Synchronous movements of the loader sufficiently reduce loading time
Ring loader
- 4 stations (auxiliary functions: chamfering/deburring, oil disposal, etc.)
- Connection of media (electricity, air, etc.) through column. No additional cables are needed
- Cables are fully protected from the influence of working environment
- Endless ring loader
Automation
- Manual loading/unloading of workpieces at the clamping position, installation in the spindle with a help of integrated automatic units
- Automation of manufacturing process with a help of workpiece storage, pallet conveyor or similar equipment
- Size of magazine/conveyor depends on the time of working without operator
| Technical parameters | Unit | H 300 |
| Max. workpiece diameter | mm | 300 |
| Max. module | mm | 8 |
| Radial movement (Х) | mm | 40-255 |
| Max. radial feed speed | mm/min | 10000 |
| Tangential movement (Y) | mm | 240 |
| Max. tangential feed speed | mm/min | 7000 |
| Axial movement (Z) | mm | 200-600(200-800) |
| Max. axial feed speed | mm/min | 7000 |
| Milling spindle rotary speed | rpm | 225-1800(300-3000) |
| Milling spindle drive power | kW | 14(31) |
| Milling spindle nominal torque | Nm | 550(190) |
| Milling head swivel angle | grad | ±45 |
| Tool clamping arbour fixture taper | ? 32/SK25 | |
| Max. mill diameter | mm | 175(130) |
| Max. mill length | mm | |
| Max. table rotary speed | rpm | 1-400 |
| Table diameter | mm | 250 |
| Table hole diameter | mm | 100 H7 |
| Total connected load | kW | 40 |
| CNC system | Siemens 840 D Solutionline | |
| Quantity of controlled CNC axes | 6 | |
| Weight | Kg | 9500-11000 |
| Overall dimensions (L х W х H) | mm | 4000x2420x2750(3050) |
Siemens
- Innovative control technology with network connection
- USB interface
- Module software packages
- Software for tooth profile and flank correction
- Safety-Integrated and HMI-Pro
- Menu-guided operator interface
- Tool management, including tool condition monitoring