Maximizing Processing Efficiency with High-Performance Chipper Blades
For heavy-duty forestry, land clearing and wood processing operations, chipper blade quality directly determines machine uptime, fuel efficiency and finished chip quality.
Premium chipper blades cut dense logs effortlessly, reduce engine load, minimize unplanned downtime, and produce consistent, uniform wood chips.
ALAS is a professional manufacturer of high-durability aftermarket chipper blades. Our blades are direct replacements for mainstream global brands including Vermeer, Bandit, Morbark and more, with full-size options compatible with most wood chipper models.
What Are Chipper Blades?
Chipper blades are the core cutting components of wood chippers, designed to process the following raw materials:
Whole logs
Tree branches
Tree bark
Recycled waste wood
These cutting parts process raw timber into standardized wood chips, serving key industries below:
Pulp & papermaking
Engineered wood manufacturing (particleboard, MDF)
Biomass energy production
Commercial forestry clearing
Two Main Types of Chipper Blades
1. Disc Blades
Installation: Mounted on a rotating cutter head
Common structure: 4–6 blades, 8–12 blades, or spiral cutting design
Core strengths: Ideal for large log processing; delivers clean, high-quality wood chips
Main application: Commercial paper mills
2. Drum Blades
Installation: Fixed firmly on a cylindrical cutting drum
Core strengths: Works well with mixed feedstock including bark, wood scraps and small logs
Application scenario: Small and medium wood processing factories
Feature note: Produced chips have less uniformity than those processed by disc blades
Common Blade Raw Materials: A8 / A8B / D2
A8, A8B and D2 are three common tool steels for industrial chipper blades, differing in toughness, wear resistance, hardness and material cost.
All ALAS blades adopt carefully selected tool steel and professional vacuum heat treatment, delivering stable performance under continuous high-impact cutting.
| Blade Material | Performance & Application Details |
| A8 Steel | High-toughness tool steel | Hardness: HRC 58–62 Core advantage: Strong impact and crack resistance Best use: Small & medium chippers for hardwood, knotted wood and frozen wood cutting |
| A8B (Modified A8) | Upgraded A8 steel, industry standard premium blade material | Hardness: Stable HRC 58–62 Core advantage: Balanced hardness and shock resistance, anti-edge chipping Best use: Medium & large production lines for papermaking and wood panel manufacturing |
| D2 (SKD-11) | High-carbon high-chromium semi-stainless steel | Hardness: HRC 60–62 Core advantage: Superior edge retention and wear resistance Best use: Large chippers for softwood, bamboo and straw, reducing blade replacement frequency for high-volume processing |
Why Global Forestry Operators Trust ALAS Chipper Blades
1. Reliable Cutting Performance for Harsh Working Conditions
Cutting hardwood, knotted logs and frozen wood generates heavy impact load on blades. Budget generic blades easily crack or fracture under such working stress.
Made of modified A8 steel, ALAS blades achieve ideal balance between hardness and toughness, preventing brittle breakage even in cold winter field operations.
2. CNC Precision Dynamic Balancing
Every ALAS finished blade is processed via CNC precision machining and full dynamic balancing inspection.
This precision processing ensures smooth machine operation, cuts vibration damage to cutter heads, and extends your wood chipper’s overall service life.
3. Longer Lifespan, Lower Overall Operating Cost
Advanced vacuum heat treatment forms a uniform deep hardened layer throughout each ALAS blade body.
ALAS blades can be resharpened repeatedly without losing cutting sharpness. Fewer blade replacements and less downtime effectively lower your workshop’s total cost of ownership (TCO).
4. Custom OEM & ODM Blade Service
Cannot find standard blades for your custom chipper model?
Simply provide blade dimensions (Length × Width × Thickness) or engineering drawings. Our team manufactures custom blades for Vermeer, Bandit, Morbark and all other chipper brands.
Quick Blade Selection Guide
| Actual Cutting Working Condition | Recommended Steel Material |
| Mixed wood materials, high-impact cutting (hardwood, knotted wood, frozen wood) | A8 |
| 24/7 continuous production, mainly hardwood processing | A8B (Modified A8) — Cost-performance best pick |
| High-volume low-impact cutting: softwood, bamboo, straw | D2 — Longest service life |
A well-fitted replacement blade improves chip quality, cuts fuel consumption and boosts overall machine performance.
The blade purchase cost is minor compared with losses from unplanned downtime. ALAS matches proper blade size and steel grade based on your raw wood materials, to maximize your processing efficiency.
Full Technical Specification Comparison
| Specification Item | A8 Steel | A8B Steel (Modified A8) | D2 Steel |
| Steel Type | High-toughness tool steel | Vacuum heat-treated upgraded A8 steel | High-carbon high-chromium semi-stainless steel |
| Core Advantage | Great toughness & impact crack resistance | Balanced toughness & wear resistance; stable hardness; anti-edge-chipping | Excellent wear resistance; ultra-long service life |
| Hardness (HRC) | 58–62 | 58–62 (high consistency) | 60–62 |
| Applicable Chipper Scale | Small & medium chippers | Medium & large production-line chippers | Large industrial heavy-duty chippers |
| Applicable Raw Materials | Hardwood, knotted wood, frozen wood | Hardwood for continuous batch processing | Softwood, bamboo, crop straw |
| Target Industries | Field forestry, small-batch wood processing | Papermaking, MDF & particleboard manufacturing | Large-scale papermaking, biomass energy, high-yield wood processing |
| Extra Features | Resist breakage under strong impact | Multi-time resharpenable; fit long-hour continuous work | Anti-rust property; minimal maintenance needed |
