Rekord CK 300-TH CNC Twin Head Circular Knife Grinder up to 13.75 inch – Year 2024
Machine Overview
Rekord CK 300-TH Twin Head CNC Circular Knife Grinder, Year 2024, designed for high-precision sharpening of circular slitter knives and core cutter knives up to 350 mm (13.75″) in diameter. Equipped with dual grinding heads for simultaneous grinding of both bevels, a Windows PC-based PLC control system, touchscreen interface, heavy-duty coolant filtration system, and automatic variable-speed knife rotation. The CK 300-TH provides burr-free grinding, exceptional repeatability, and high production efficiency for knife manufacturers and regrinding facilities.
Technical Specifications
| Specification | Metric | Imperial |
|---|---|---|
| Manufacturer | Rekord | Rekord |
| Model | CK 300-TH | CK 300-TH |
| Year of Manufacture | 2024 | 2024 |
| Machine Type | CNC Twin Head Circular Knife Grinder | CNC Twin Head Circular Knife Grinder |
| Control System | PLC with Windows Panel PC | PLC with Windows Panel PC |
| Display | 10″ (16:9) Touchscreen | 10″ (16:9) Touchscreen |
| Knife Diameter Capacity | 40 – 350 mm | 1.6″ – 13.75″ |
| Maximum Stroke | 25 mm | 1″ |
| Grinding Heads | 2 | 2 |
| Grinding Method | Simultaneous Twin-Bevel Grinding | Simultaneous Twin-Bevel Grinding |
| Maximum Double Bevel Angle | 90° Included (45° per Side) | 90° Included (45° per Side) |
| Single Bevel Grinding Range | -10° to +70° | -10° to +70° |
| Grinding Motor Power | 0.75 kW per Motor | 1 HP per Motor |
| Grinding Wheel Diameter | 125 mm | 4.92″ |
| Grinding Wheel Bore | 20 mm | 0.79″ |
| Grinding Wheel Speed | 4,700 RPM | 4,700 RPM |
| Knife Rotation Speed | 10 – 50 RPM (Variable) | 10 – 50 RPM (Variable) |
| Knife Rotation Drive | Geared Motor | Geared Motor |
| Quick Change Knife Holder | 16 mm | 5/8″ |
| Voltage | 230/400 V or 480 V, 3 Phase, 60 Hz | 230/400 V or 480 V, 3 Phase, 60 Hz |
| Machine Weight | 500 kg | 1,100 lbs |
| Grinding & CNC Features | ||
| Grinding Mode | Simultaneous Double-Bevel Grinding | Simultaneous Double-Bevel Grinding |
| Single Bevel Grinding | Supported | Supported |
| Primary & Secondary Bevel Grinding | Supported | Supported |
| Burr-Free Grinding | Yes | Yes |
| Automatic Knife Rotation | Variable Speed Servo Controlled | Variable Speed Servo Controlled |
| Electronic Diameter Matching | Yes | Yes |
| Automatic Wheel Compensation | Programmable | Programmable |
| Programming Functions | Total Stock Removal, Pass Removal, Spark-Out, Match Diameter | Total Stock Removal, Pass Removal, Spark-Out, Match Diameter |
| Coolant & Filtration | ||
| Coolant System | Heavy Flood Coolant | Heavy Flood Coolant |
| Coolant Type | Emulsion or Neat Oil | Emulsion or Neat Oil |
| Magnetic Coolant Separator | Included | Included |
| Mist Collector | Darwin 600D | Darwin 600D |
| Machine Features | ||
| Cabin | Fully Enclosed | Fully Enclosed |
| Lighting | Adjustable LED / Low Voltage Target Light | Adjustable LED / Low Voltage Target Light |
| Lubrication | Manual Centralized Lubrication | Manual Centralized Lubrication |
| Slide Construction | Roller Bearing Linear Guides | Roller Bearing Linear Guides |
| Grinding Wheels Supported | CBN, Diamond, Conventional Abrasive | CBN, Diamond, Conventional Abrasive |
| Fine Knife Centering Adjustment | Included | Included |
| Wi-Fi Remote Support | USB Wi-Fi Adapter with Remote Diagnostics | USB Wi-Fi Adapter with Remote Diagnostics |
| Standard Equipment | ||
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| Applications | ||
| Designed for high-volume sharpening and regrinding of carbide and high-speed steel circular slitter knives, core cutter knives, shear knives, paper converting knives, film slitting knives, foil processing knives, packaging blades, tissue converting knives, textile cutting knives, and other precision circular cutting tools. | ||
| Machine Features | ||
| The Rekord CK 300-TH is a high-production CNC twin-head circular knife grinder engineered for precision, speed, and repeatability. Its dual grinding heads simultaneously grind both bevels to produce burr-free cutting edges while significantly reducing cycle times. The Windows-based programmable control automatically manages stock removal, spark-out, and diameter matching, ensuring consistent knife geometry. Combined with automatic variable-speed knife rotation, heavy-duty coolant filtration, CBN/diamond wheel compatibility, Wi-Fi remote diagnostics, and a fully enclosed working cabin, the CK 300-TH is an ideal solution for professional knife manufacturers and industrial sharpening facilities. | ||
