Working Hours: 08:00AM – 06:00PM

Our Largest Production Unit,

for Industrial Use

CATRA do not currently manufacture this product. However, if after reading the below information and believe that such a product is ideal for your purposes, contact us and we’ll see what we can do for you…

  • Consistent, but adjustable knife edge angle between 20° and 60°.
  • The double spiral interlock grinding wheel sharpening system is used in the machine, which is designed for sharpening in either the knife manufacturing plants or high volume re-sharpening units.
  • This system, coupled with the high tech abrasive Cubic Boron Nitride (CBN) gives the machine many advantages.
  • Use of CBN abrasive avoids the need for both a grinding and honing operation.
  • Low heat generation, which does not need coolant, making a more comfortable operational environment.
  • Easy to maintain as the grinding wheels do not need redressing or regular adjustment.
  • Safe operation – grinding wheels do not break as they are of coated steel construction, low noise level.
  • Higher grinding speeds means fast operation without edge burning. No loss of blade hardness at the tip of the cutting edge, thereby maintaining high edge life.
  • Grinding wheels can be recoated, keeping costs low.
  • A range of abrasive grit sizes are available to suit different knife uses.
  • Dual operation allows both sharpener and hollow grinder in one machine.
  • Can sharpen a wide range of curved and straight machine blades with either single or double bevel edges.

In the knife re-sharpening environment, the equipment can easily be adjusted to provide a hollow grinding process for well used blades where the edge has become too thick. Adjustment between sharpening and hollow grinding takes less than 10 seconds and a typical hollow grind time is less than 2 minutes.

Knife Type Edge Thickness Pieces/Hour Approximate Wheel Life Between Coatings Approximate Consumable Grinding Wheel Re-coat Cost/blade
40,000 pieces
30,000 pieces
24,000 pieces



Sharpened Angle Adjustable from 20° to 60°
Grinding Wheel Diameter 200 mm
Motor 0.75 kW with variable speed options: 3ph 380/440V or single phase 220V
Noise Level ~70dBa
Size 1000 x 700 x 500 mm
Weight 250 kg
Maximum Blade Size 850mm long x 200mm wide

Contact us by phone or e-mail for the latest prices on all our knife sharpeners