Automatic Knife Grinder Machine for sharpening plastic crusher and shredder blades.

Auxiliary Recycling Equipment

Automatic Knife Grinder

A precision blade sharpening machine for crusher, shredder, and chipper knives that helps keep cutting performance stable and maintenance cycles predictable.

Automatic knife grinder for crusher and shredder blades

Why This Knife Grinder Fits Recycling Workshops

The RT-1600 is designed for accurate resharpening, steady head travel, and workshop-friendly maintenance so blade quality stays consistent across repeated sharpening cycles.

0 to 90 Degree Chuck Adjustment

Its electromagnetic chuck holds blades securely while supporting different sharpening angles for varied blade geometries.

Stable Travel and Feed Control

Frequency-controlled head travel and precise feed adjustment support smooth grinding passes and repeatable results.

Up to 1600 Millimeter Blade Capacity

The standard model handles long industrial knives used on granulators, shredders, shears, and related cutting equipment.

Workshop-Oriented Durability

Rigid construction, low-vibration operation, and accessible wheel maintenance help extend service life in daily production use.

Machine Overview

Knife grinder side view for industrial blade sharpening

Designed for Crusher and Shredder Blade Maintenance

Instead of replacing blades early, recyclers can restore edge quality in-house and reduce the downtime caused by worn knives, poor cutting, and inconsistent material size reduction.

Fits Preventive Maintenance Workflows

With adjustable head speed, controlled feed depth, and accurate positioning, the machine supports repeatable sharpening as part of planned maintenance rather than emergency repair.

Automatic knife grinder working table and electromagnetic chuck

Technical Specifications

Parameter Value
Model RT-1600
Max Grinding Length × Width 1600 × 180 mm
Chuck Type Electromagnetic
Grinding Angle Adjustment 0 to 90 degree
Grinding Head Power 6.5 kW
Grinding Precision 0.03 mm or better
Grinding Wheel Size 200 × 100 mm
Head Travel Speed 0 to 20 m/min adjustable
Auto Feed Amount 0.002 to 0.2 mm
Weight Approx. 2800 kg

See It in Action

Watch the automatic knife grinder in operation and see how it supports accurate, repeatable blade sharpening for recycling workshops.

Frequently Asked Questions

The RT-1600 can grind blades up to 1600 mm in length and 180 mm in width.

Yes. It is suitable for chipper knives, granulator blades, shear blades, and other comparable straight industrial knives.

Yes. Installation guidance, operator training, and commissioning support can be arranged according to project scope.

The standard warranty period is 12 months for covered parts and workmanship, with ongoing technical support available.

Warranty and Installation Support

12-Month Warranty

Covered machine components are supported for standard manufacturing defects and startup operation.

Commissioning and Training

We can support machine setup, operating instruction, and maintenance handover for workshop teams.

Discuss Your Blade Sharpening Requirements

Send blade length, blade type, and workshop requirements. We will recommend a suitable grinder configuration.

Contact Form

Author: Plastic Recycling Machine - Rumtoo

Rumtoo Plastic Recycling Machinery is a premier manufacturer specializing in high-performance solutions for PET bottle and PP/PE film recycling. With over 20 years of expertise, we offer an integrated range of equipment, including advanced Washing Systems, Pelletizing Lines, Plastic Shredders, and Crushers. Our technology is specifically engineered to transform challenging waste—such as soiled LDPE films and PP non-woven bags—into high-purity plastic granules. Today, Rumtoo supports hundreds of recycling facilities worldwide, processing thousands of tonnes of plastic monthly and driving global circular economy goals.

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