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HK Blade Tech Industrial Blade Factory
Engineered for Cumberland, Vecoplan & More

Premium Industrial
Blade Manufacturer.

Precision cutting tools made at our factory in Ma'anshan, China — engineered, quality-checked and shipped by our English-speaking sales & support team in Hong Kong.
Standard drop-in replacements or custom-built to your exact specs.

View Product Catalog Request Custom Quote
Granulator and Shredder Blades
Plastics Recycling & Reduction

High-Wear Granulator
& Shredder Blades.

Forged with genuine D2 and Tungsten Carbide for maximum
edge retention in the most demanding recycling applications.

View Granulator Blades Request Custom Quote
Circular and Corrugated Knives
Converting & Packaging

Circular Slitters &
Corrugated Knives.

Micron-level precision grinding ensuring clean, burr-free cuts
on film, foil, paper, and corrugated board production lines.

View Circular Knives Request Custom Quote
Compatible Replacement Parts For:
CUMBERLAND VECOPLAN RAPID ZERMA WEIMA HERBOLD

High-Performance Blade Catalog

Huge inventory ready to ship. Custom designs manufactured to your exact specifications.

Granulator Blades

Granulator Blades

High-wear D2 & Carbide blades for plastic recycling.

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Shredder Blocks

Shredder Blocks

Heavy-duty blocks for single & double shaft shredders.

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Circular Slitter Knives

Circular Slitter Knives

Precision slitter blades for film, foil, and paper.

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Corrugated Knives

Corrugated Knives

High-precision serrated knives for board production.

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Industries We Serve

Precision-engineered cutting solutions optimized for your specific application.

Plastics Recycling Blades

Plastics Recycling

High-wear granulator and pelletizer blades for PET, HDPE, and purgings.

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Industrial Shredding Knives

Industrial Shredding

Tough shredder blocks and hooks for e-waste, tires, and wood processing.

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Film & Foil Converting Blades

Film & Foil Converting

Razor-sharp slitter knives ensuring clean cuts on plastic films and textiles.

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Corrugated Board Knives

Corrugated Board

Precision serrated cut-off knives and slotters for the paper packaging industry.

Explore Solutions →

Custom Manufacturing Made Simple

Can't find your part number? No problem. We manufacture to your exact specifications.

1. Measure & Sketch

Send us a technical drawing, a simple hand sketch with dimensions, or mail us a sample blade.

2. Quote & Confirm

Our engineers will review your specs and provide a detailed quote and material recommendation within 24 hours.

3. Produce & Ship

Once confirmed, we start production immediately. We handle quality control and global shipping logistics.

Ready to Upgrade? Send Us Your Specs Today

HK Blade Tech Factory Production Line
Who We Are

China-Made Blades. Hong Kong Service & Accountability.

Welcome to HK Blade Tech. Our setup is simple and honest: our sales & service team is based in Hong Kong, and our blades are made at our factory in Ma'anshan, China. So you deal with a Hong Kong team that speaks your language, signs off on quality and stands behind every shipment — at real China factory prices. Whether you need standard OEM-equivalent replacements or custom-engineered blades, we deliver cutting tools matched to your exact machine and material.

By controlling every production step—from raw material selection at our Ma'anshan manufacturing facilities to final heat treatment—we ensure superior edge retention and durability.

Uncompromising Quality Control

Strict hardness testing (HRC) and dimensional verification on every single batch.

Hardness Testing Process

1. Hardness Testing

Every single blade is heat-treated in-house. We verify Rockwell hardness (HRC 58-62 for D2) to guarantee maximum wear resistance without brittleness.

Precision Grinding Process

2. Precision Grinding

CNC precision grinding achieves tolerances of +/- 0.02mm. This ensures a perfect fit for your machine, allowing for tighter gap settings and reduced energy consumption.

Secure Packaging Process

3. Secure Packaging

Anti-rust oil coating and vacuum sealing protect every blade. Shipped in reinforced plywood crates to withstand international transit and prevent edge damage.

Technical Guides & Insights

Expert advice on blade materials, heat treatment, and maximizing your shredder's lifespan.

Cumberland vs Rapid granulator blades
Jun 16, 2026•6 min read
Compatibility

Cumberland vs. Rapid Granulator Blades: Compatibility Guide

Their knives are not interchangeable. Learn the key differences in rotor style, bolt pattern and bevel, and how to order the right drop-in replacement.

Read Full Guide
How to measure a granulator blade
May 19, 2026•5 min read
Sizing Guide

How to Measure a Granulator Blade for a Correct Replacement

The 5 dimensions that decide whether your new blade drops in or sits in a drawer: length, width, thickness, bolt pattern and bevel.

Read Full Guide
Vacuum Heat Treatment Process
Apr 21, 2026•4 min read
Manufacturing

Beyond the Steel: The Secret to Longer-Lasting Blades

Discover why specifying D2 isn't enough. Learn how advanced vacuum quenching and cryogenic treatment prevents blade chipping.

Read Full Guide
D2 vs Tungsten Carbide Blades
Mar 24, 2026•5 min read
Material Guide

D2 vs. Tungsten Carbide: How to Choose the Right Blade

Why are your granulator blades dulling so fast? Learn how to choose the perfect steel based on our 4-Step Rule for plastic recycling.

Read Full Guide
View All Technical Guides

Frequently Asked Questions

Can't find the answer you're looking for? Email us at info@hk-bladetech.com.
Technical answers directly from our engineering team.

Why choose HK Blade Tech over local suppliers?

Factory Direct + Engineering Expertise. We eliminate middleman markups to deliver uncompromised quality at direct factory prices.

  • Premium Materials: Imported HSS, Tungsten Carbide, and Powder Metallurgy. Our deep cryogenic treatment increases wear resistance by >30%.
  • Micron-Level Precision: Swiss and Japanese CNC grinders control perfect parallelism, ensuring every cut is smooth and burr-free.
  • True Heat Treatment: In-house vacuum quenching guarantees uniform microstructure. We reject "fake hardness"—our blades will not chip or break under heavy loads.
  • Custom Coatings: From food-safe anti-rust to DLC & AlTiN for highly abrasive materials, tailored to your exact application.
How can I place an order or get a quote?

It’s simple. Click the Request Fast Quote button.

  • Standard Blades: Tell us your machine model (e.g., Cumberland 1215).
  • Custom Knives: Send a photo, drawing, or hand sketch to info@hk-bladetech.com.
How can I extend the life of my machine knives?

We recommend two primary strategies to maximize longevity:

  1. Precision Gap Setting: Calibrate the rotor-stator gap strictly to 0.2-0.3mm to avoid rubbing and rapid dulling.
  2. Material Upgrades: Standard D2 steel fails quickly on abrasive plastics (like glass-filled nylon). Upgrade to Carbide-inlaid blades for 3-5x longer life.
How do I know when to replace my blades?

Timely replacement protects your equipment. Watch for these warning signs:

  • Increased Burrs & Dust: Dull blades shatter plastic instead of cutting it cleanly.
  • Abnormal Noise & Vibration: Indicates micro-chipping. Continuing risks severe spindle damage.
  • Higher Amp Draw: Your motor is working significantly harder.
  • Visible Discoloration: Blue-purple oxidation indicates loss of physical properties due to high-friction heat.

Pro Tip: We highly recommend keeping a spare set of blades on the shelf to minimize costly machine downtime during changeovers.

Which blade material is right for my application?

Choosing the correct alloy lowers your cost-per-ton. Here is our quick guide:

  • Standard Plastics (PE/PP/PET): Use Premium D2 / SKD11 for excellent cost-performance.
  • Glass Fiber (10-30%): Standard D2 dulls in days. Upgrade to Powder Metallurgy or D2 with High-Wear Coating.
  • Highly Abrasive (>30% GF, Carbon Fiber): Use Tungsten Carbide-Inlaid Blades. Drops cost-per-ton by >50%.
  • Film & Foil Slitting: Use High-Speed Steel (HSS) + DLC Coating to prevent static and material adhesion.
Read our full guide on Industrial Blade Materials →