Logs
Branches
Bark
Recycled wood
Papermaking and pulping
Engineered wood (particleboard, MDF)
Biomass energy
Forestry work
Attached to a rotating cutter head
Common setups: 4–6, 8–12, or spiral design
Good for large logs
Makes clean, high-quality chips
Mostly used by paper mills
Fixed to a cylindrical drum
Works well with mixed materials (bark, wood waste, small logs)
Good for small-to-medium plants
Chips are slightly less even than disc knives
Type: High-toughness steel
Best for: Toughness and impact resistance
Hardness: HRC 58–62
Use for: Small-to-medium chippers, hardwood, knotty wood, frozen wood
Price: Medium-low
Type: Upgraded A8 steel
Best for: Balance of toughness and wear resistance
Hardness: HRC 58–62 (more consistent)
Use for: Medium-to-large production lines (papermaking, wood panels)
Price: Medium
Type: High-carbon, high-chromium steel (semi-stainless)
Best for: Wear resistance and long life
Hardness: HRC 60–62
Use for: Large machines, softwood, bamboo, straw
Price: High
Uses Modified A8 steel (great balance of hardness and toughness)
No brittle breaking (common with cheap knives)
Works well in harsh winter conditions
Downtime is more costly than the knife itself
We help you choose the right knife (size, material) for your wood type
Longer life = fewer replacements + less downtime
Lowers your total cost
Mixed materials, high impact (hardwood, knotty wood, frozen wood) → A8
Continuous production, mostly hardwood → A8B (best value)
Softwood, bamboo, high volume → D2 (longest life)
Uses A8 and Modified A8 steel (made for high-impact work)
Self-sharpening effect and tough (won’t shatter if hitting knots/stones)
Precision-ground to match top brands (Morbark, Vermeer, Bandit, Carlton)
Perfect balance → less vibration → protects machine bearings
Vacuum hardening for consistent hardness (HRC 55–58)
Hard enough to stay sharp, ductile enough to handle shock
Direct manufacturer (no middleman)
Global shipping and bulk discounts
Standard or custom knives available



French (Français): Fournisseur de couteaux de déchiqueteuse | Lames pour bois
Italian (Italiano): Fornitore di lame per cippatrice | Coltelli per sminuzzatrici
Portuguese (Português): Fornecedor de facas para picador | Lâminas de picador de madeira
Polish (Polski): Dostawca noży do rębaka | Noże do rębarki do drewna
Turkish (Türkçe): Odun Parçalayıcı Bıçak Tedarikçisi | Yonga Bıçakları Fabrikası
Vietnamese (Tiếng Việt): Nhà cung cấp lưỡi dao máy băm gỗ | Dao băm dăm gỗ
Thai (ภาษาไทย): ผู้จำหน่ายใบมีดเครื่องย่อยกิ่งไม้ | ใบมีดเครื่องสับไม้
Arabic (العربية): مورد سكاكين آلة تقطيع الخشب | شفرات تقطيع الأخشاب
Hindi (हिन्दी): चिपर चाकू आपूर्तिकर्ता | लकड़ी काटने वाले ब्लेड
Indonesian (Bahasa Indonesia): Supplier Pisau Mesin Chipper | Bilah Pencacah Kayu
Malay (Bahasa Melayu): Pembekal Pisau Mesin Pencarik Kayu | Bilah Chipper
Dutch (Nederlands): Leverancier van versnippermessen | Houtversnipperaar messen
Swedish (Svenska): Leverantör av flishuggsknivar | Knivar för träflisning
Hungarian (Magyar): Aprítókés beszállító | Faaprító gép pengék
Greek (Ελληνικά): Προμηθευτής μαχαιριών θρυμματιστή | Λεπίδες για ξύλο
Nanjing Alas International Co., Ltd. is a professional industrial tooling manufacturer focused on shear blades, bending dies, shredder blades, and custom wear parts. We offer full application engineering, material selection, setup guidance, and after-sales support to global customers.
Tell us your requirements, and our engineering team will provide professional solutions for blade specification, tool life optimization, and cost-effective production.
