ROTOWORM – CNC Worm & Thread Milling Machine
The ROTOWORM series is a dedicated mechatronic solution for the production of high-precision worms and specialized power screws. By utilizing a rigid milling head and simultaneous 4-axis CNC interpolation, it enables the machining of complex worm profiles—including multi-start and variable lead worms—with extreme dimensional repeatability and superior surface finishes.
Process: High-Accuracy CNC Worm Profile Milling
Applications:
Worm Gearboxes, Automotive Steering Worms, Industrial Jacks, Plastic Extrusion ScrewsMechatronic Excellence in Worm Machining
The ROTOWORM system eliminates the inconsistencies of traditional lathe-based threading for heavy-duty worms. By using a specialized disk-type milling cutter, the machine can remove large volumes of material in a single pass while maintaining a profile accuracy that significantly reduces the time required for subsequent grinding or finishing operations.
Industrial Advantages:
- Enhanced Load Bearing: Accurate profile generation ensures better contact area between the worm and worm-wheel, increasing the lifespan of the gearbox.
- Multi-Start Precision: The CNC indexing head allows for perfect lead synchronization in 2, 3, or 4-start worm configurations.
- Rigidity for Heavy Materials: Specifically built to machine hardened alloy steels and specialty transmission materials.
- Reduced Cycle Times: Single-pass roughing and finishing capabilities minimize production time.
Key Applications
- Worm Gearboxes: Precision worms for industrial gear reducers.
- Automotive Steering: High-accuracy steering worms for passenger and commercial vehicles.
- Industrial Jacks: Load-bearing screw jacks for heavy machinery.
- Plastic Extrusion: Specialized screws for plastic processing equipment.
Technical Mechatronics
- Swivelling Milling Head: Precise adjustment of the helix angle to accommodate various worm geometries.
- High-Torque Spindle: Designed to maintain constant RPM under heavy cutting loads.
- Precision Optical Scales: Closed-loop feedback system ensuring the highest positional accuracy on all axes.
- Integrated Lubri-Coolant System: High-pressure cooling to maintain tool integrity and surface finish quality.
- Rigid Cast Iron Construction: Heavy-duty machine base for vibration-free operation.
- CNC Control: Advanced CNC with dedicated worm milling cycles and graphical simulation.
| PARAMETER | UNIT | ROTO2030 | ROTO2035 | ROTO2040 | ROTO2050 | ROTO2060 |
|---|---|---|---|---|---|---|
| CAPACITY | ||||||
| MAX MILLING DIA | mm | 200 (WITH HYDRAULIC STEADY REST: 160) | ||||
| MAX THREAD MILLING LENGTH | mm | 3000 | 3500 | 4000 | 5000 | 6000 |
| ADMIT BETWEEN CENTRE | mm | 3300 | 3800 | 4300 | 5300 | 6300 |
| DISTANCE FROM FLOOR TO SPINDLE | mm | 1190 | ||||
| MAX WEIGHT OF JOB | kg | 800 | 900 | 1000 | 1300 | 1500 |
| WORK SPINDLE | ||||||
| STANDARD CHUCK SIZE (4 JAW MANUAL) | mm | 305 | ||||
| SPINDLE NOSE | Type | A2-8 | ||||
| SPINDLE THROUGH BORE | mm | 70 (80 for a length of 375 from chuck side) | ||||
| MAX SPEED | rpm | 38 | ||||
| MAX TORQUE ON SPINDLE | Nm | 1800 Continuous (3060 Emergency stop torque) | ||||
| DRIVE TRANSMISSION/POSITIONING | Type | HIGH PRECISION GEAR BOX/HIGH TORQUE DRIVE/DIRECT FEED BACK | ||||
| MILLING SPINDLE | ||||||
| SPINDLE TAPER | Type | BT50 | ||||
| TOOL CLAMPING | Type | AUTO TOOL CLAMPING HYDRAULIC DE-CLAMPING | ||||
| LUBRICATION | Type | GREASE PACKED FOR LIFE | ||||
| SPINDLE SPEED | rpm | 3000 | ||||
| SPINDLE POWER - S1/15 MIN RATING | kW | 011/015 | ||||
| CONSTANT POWER RANGE-S1/15 MIN RATING | rpm | 500-1500/375-1500 | ||||
| COOLANT SYSTEM/CAPACITY | Lpm | 63 | ||||
| AXES | ||||||
| TYPE OF BED/GUIDE | Type | CASTING BED/HIGH RIGIDITY TYPE ROLLER LM GUIDE | ||||
| TRAVERSE X/Z | mm | 200/3000 | ||||
| RAPID RATE | m/min | 10 | ||||
| FEED RATE | mm/min | 001-5000 | ||||
| DRIVE TRANSMISSION/POSITIONING | Type | TORQUE DRIVE PULLEY/HIGH PRECISION BALL SCREW | ||||
| GUIDEWAY/BALL SCREW LUBRICATION | Type | CENTRALISED AUTO LUBRICATION 0.8LPM | ||||
| TAIL STOCK | ||||||
| QUILL DIA | mm | 110 | ||||
| QUILL MOVEMENT (MANUAL) | mm | 170 | ||||
| CLAMPING | Type | MANUAL CLAMPING (4 NOS) | ||||
| ACCURACY - LINEAR AXES | ||||||
| POSITIONING ACCURACY (FULL STROKE) | mm | X-AXIS 0.015 / Z-AXIS: 0.050 | ||||
| REPEATABILITY (FULL STROKE) | mm | X-AXIS 0.005 / Z-AXIS: 0.015 | ||||
| ACCURACY - ROTARY AXIS (Y-AXIS) | ||||||
| POSITIONING ACCURACY | arc sec | 15 | ||||
| REPEATABILITY | arc sec | 5 | ||||
| MACHINE INSTALLATION DATA | ||||||
| MACHINE FLOOR SIZE | mm | 5700x2000 | 6200x2000 | 6700x2000 | 7700x2000 | 8700x2000 |
| MACHINE HEIGHT | mm | 2600 | ||||
| BASIC MACHINE WEIGHT (Approximate) | kg | 10300 | 11100 | 12000 | 13100 | 13700 |
| COMPRESSED AIR | bar | 6 | ||||
| POWER SUPPLY | Type | 415VAC, 3PH, 50Hz | ||||
| TOTAL CONNECTED LOAD | kVA | 25 | ||||
| CNC SYSTEM | Make | FANUC OIMF | ||||
