Precision cutter grinding equipment for North American shops Domain: NorthLinkIndustrial.com
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Automatic Knife Sharpening Machine Series

Toolroom grinding equipment built for production confidence.

NorthLink Industrial supplies automatic sharpening and cutter grinding machines for end mills, drills, ball nose cutters, round-nose tools, and chamfer cutters used by CNC shops, fabrication teams, and industrial maintenance departments.

View Machines Compare Specs
4-20 mm grinding range
PLC and enclosed options
Fast repeatable setup

Each machine shown with its own image and core parameters.

These product images are cropped from your supplied reference materials so the equipment appearance stays much closer to the actual machine series.

ZN3.1 base automatic knife sharpening machine
Base Model

ZN3.1

Compact automatic sharpening model for common tungsten steel cutters and everyday toolroom use.

  • Flat end mills4-20 mm, 2/3/4 flute
  • Ball nose cutters4-16 mm, R2-R8
  • Drills4-20 mm, 120 / 140 / 180 degrees
  • Tool length150 mm
  • Machine size600 x 420 x 800 mm
  • Net weight60 kg
ZN3.2 PLC automatic knife sharpening machine
PLC Control

ZN3.2 PLC

Touchscreen PLC model for broader flute support and repeatable setup across multiple cutter types.

  • Flat end mills4-20 mm, 2-6 flute
  • Unequal flute4-20 mm, 4/5/6 flute
  • Chamfer cutters4-16 mm, 2/3 flute, 90 degrees
  • Power2 kW
  • Grinding speed3000-5000 rpm
  • Output200-300 pcs/day
ZN3.3 universal-axis automatic knife sharpening machine
Universal Axis

ZN3.3

Universal-axis model for longer cutters and flexible setup when tool geometry changes frequently.

  • Flat end mills4-20 mm, 2-6 flute
  • Round-nose cutters4-20 mm, 2/3/4 flute, any R angle
  • Tool lengthUnlimited length
  • Power2 kW
  • Grinding speed3000-5000 rpm
  • Net weight58-60 kg
OIL5.0 enclosed water and oil grinding machine
Water / Oil Grinding

OIL5.0

Enclosed cabinet machine with water/oil lubrication for heavier use, cleaner operation, and broader material support.

  • Flat end mills4-20 mm, 2-6 flute
  • MaterialsTungsten steel, white steel, HSS, metal ceramic, powder metallurgy
  • Power1.6 kW
  • Tool lengthUnlimited length
  • Machine size862 x 788 x 1435 mm
  • Net weight200 kg

Knife and cutter types.

The machines cover the most common cutters used in CNC toolrooms, maintenance departments, and small-batch production shops.

Flat end mills, ball nose cutters, round nose cutters, drills, and chamfer cutters
4-20 mm

Flat End Mill

2-6 flute support depending on the selected machine model and cutter geometry.

R2-R8

Ball Nose Cutter

Supported across the series for common ball nose cutter sharpening applications.

R Angle

Round-Nose Cutter

4-20 mm round-nose cutter support with setup flexibility by machine model.

120 / 140 / 180

Drills & Chamfer Cutters

Drills from 4-20 mm and chamfer cutters from 4-16 mm at 90 degrees.

Applications

Designed around the cutters shops sharpen every day.

Flat end mills from 4-20 mm, including 2, 3, 4, 5, and 6 flute configurations on select models.
Unequal-flute flat end mills from 4-20 mm on PLC, universal-axis, and enclosed configurations.
Round-nose cutters, ball nose cutters from R2-R8, drills at 120, 140, and 180 degrees, plus 90-degree chamfer cutters.
Tungsten steel, white steel, high-speed steel, metal ceramic, and powder metallurgy tools on the OIL5.0 model.
Precision cutting tools prepared for grinding and inspection

Specification comparison.

Use this table as a starting point for quoting. Final recommendations can be matched to your cutter types, materials, throughput, and shop workflow.

Capability ZN3.1 ZN3.2 PLC ZN3.3 OIL5.0
Flat end mills 4-20 mm, 2/3/4 flute 4-20 mm, 2-6 flute 4-20 mm, 2-6 flute 4-20 mm, 2-6 flute
Unequal-flute flat end mills Not supported 4-20 mm, 4/5/6 flute 4-20 mm, 4/5/6 flute 4-20 mm, 4/5/6 flute
Round-nose cutters 4-20 mm, 3/4 flute, any R angle 4-20 mm, 2/3/4 flute, any R angle 4-20 mm, 2/3/4 flute, any R angle 4-20 mm, 2/3/4 flute, any R angle
Ball nose cutters 4-16 mm, R2-R8 4-16 mm, R2-R8 4-16 mm, R2-R8 4-16 mm, R2-R8
Drills 4-20 mm, 120 / 140 / 180 degrees 4-20 mm, 120 / 140 / 180 degrees 4-20 mm, 120 / 140 / 180 degrees 4-20 mm, 120 / 140 / 180 degrees
Chamfer cutters 4-16 mm, 2 flute, 90 degrees 4-16 mm, 2/3 flute, 90 degrees 4-16 mm, 2/3 flute, 90 degrees 4-16 mm, 2/3 flute, 90 degrees
Tool length 150 mm 150 mm Unlimited length Unlimited length
Sharpening material Tungsten steel Tungsten steel Tungsten steel Tungsten steel, white steel, HSS, metal ceramic, powder metallurgy
Machine size 600 x 420 x 800 mm 600 x 420 x 800 mm 600 x 420 x 800 mm 862 x 788 x 1435 mm
Net weight 60 kg 60 kg 60 kg 200 kg

Built for practical shop decisions.

The site content is written for buyers who need clear machine fit, simple comparison, and a fast path to quotation.

Tooling-first guidance

Model selection starts with cutter type, diameter range, flute count, material, and target daily output.

Repeatable operation

Servo-driven grinding and structured setup help reduce operator variability and rework.

Compact footprint

ZN3 series machines are sized for toolrooms, CNC support areas, and maintenance departments.

Quote-ready details

NorthLink can prepare machine recommendations, configuration details, and shipping information for your location.

Request a Quote

Send your cutter list and production needs.

Include the tool types you sharpen, diameter range, flute count, material, expected daily output, and destination country. NorthLink Industrial will match the correct machine configuration.

Email: kingzp66@gmail.com Website: NorthLinkIndustrial.com Serving: United States, Canada, and North American industrial buyers