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Low Speed Shredder Blades for Plastic Recycling

Our low speed shredder blades for plastic are engineered to handle the toughest recycling challenges, from soft films to heavy-duty plastic lumps. Manufactured from premium tool steels like SKD-11 or DC53, these blades undergo advanced vacuum heat treatment to achieve a hardness of HRC 58-62. The low-speed, high-torque design ensures efficient tearing and shearing of plastics (PP, PE, PVC, PET) with minimal dust generation and heat buildup, preventing material melting. Precision-ground edges and high impact resistance significantly extend the service life between regrinds.
  • L/C, T/T, Paypal, Money Gram

  • 10

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Low Speed Shredder Blades & Plastic Crushers

In the circular economy, recycling lines work well if the first size reduction step is efficient.

Low Speed Shredder Blades

They are the key part of twin-shaft or four-shaft shredders. Here’s what you need to know:
  • Use high torque (low RPM) to cut materials (unlike high-speed granulators that use speed)

  • Ideal for large, dirty, or tough waste

  • Critical for high-capacity recycling productivity

  • Our blades cut tough materials easily (industrial plastics, rubber, wood, light metals)

  • Low noise and dust

Why Choose Our Shredder Blades?

  • Maximum Toughness: Made of top SKD11 or DC53 tool steel; precise vacuum heat treatment (no chipping under heavy use)

  • Made for Torque: Blade shapes fit dual-shaft and single-shaft shredders; no jamming

  • Precise Fit: CNC-machined to tight standards; consistent cutting gaps

  • Long Wear Life: Resist wear, stay sharp longer; less downtime and energy use

  • Replacement blades for Shred-Tech, Vecoplan, and custom systems

SKD11 vs DC53: Which to Choose?

  • DC53 (Recommended): Good wear resistance; much better impact resistance and anti-chipping (perfect for glass fiber plastic and high-hard plastic)

  • SKD11: High hardness and wear resistance but brittle; only for clean, impurity-free, no-impact pure high-hard plastic

Heat Treatment Tips

  • Both need full vacuum quenching + deep cooling + multiple tempering (full cross-section hardening)

  • Do NOT use shallow surface quenching (hardness drops sharply after 1-2 grinds)

Extend Blade Life (For Glass Fiber Plastic)

  • Add PVD AlTiN or TiCN coating: Reduces friction, resists wear, reduces material sticking

Common Chipping Issues

  • SKD11 chipping: Due to brittleness; switch to DC53

  • DC53 chipping: Not material issue; check edge angle, spindle speed, blade gap, or heat treatment

Slow Machine-Side Plastic Crushers

Designed for use near injection molding machines. Key features:
  • Low RPM (28–300): Less heat, no plastic melting, better recycled material

  • Quiet: Soundproof boxes + sound-absorbing cotton (meets industrial noise rules)

  • No screen: Even particles, little powder (can mix directly with new material)

  • Durable blades: SKD11 and imported steel; wear-resistant

  • Optional automatic feeding (boosts efficiency)

Applicable Scenarios

  • Injection molding recycling (crushes sprues and defective parts on-site)

  • Hard plastics: PC, nylon, ABS, etc.

  • Soft plastics: LDPE film, PP woven bags (some models)

About Us (Professional Blade Manufacturer)

  • Research, produce, and sell blades; years of industry experience

  • Blades used in plastic, rubber, wood, metal recycling

Our Advantages

  • Quality materials: High-hardness alloy steel, wear-resistant and impact-resistant

  • Precision technology: Advanced CNC machines and heat treatment

  • Custom service: Blades in different sizes, shapes, and materials

  • Strict quality checks: Every blade tested; meets international standards

  • Efficient after-sales: Professional technical support, quick response

Choose us for quality and trust. We look forward to working with you.


FAQ: DC53 vs SKD11 Shredder Blades

1. Which is better for high-hard plastics and glass fiber plastics: DC53 or SKD11?

A: Choose DC53 first. It wears almost as well as SKD11, but is much tougher and less likely to chip. Glass fiber plastics have hard particles that hit the blade, and high-hard plastics create intermittent cutting pressure. DC53 only wears down, no chipping, and works more reliably.

2. Why is SKD11 not good for glass fiber plastics?

A: SKD11 is hard and wears well, but it is brittle and not tough. The hard particles in glass fiber hit the blade edge nonstop, easily causing chipping or corner damage. It cannot handle intermittent impact and is not fit for shredding glass fiber plastics.

3. When can SKD11 be used for high-hard plastics?

A: Only for pure high-hard plastics with very clean working conditions—no impurities, no hard impacts. Feeding must be even all the time, with no hard blocks hitting the blade. This way, SKD11’s strong wear resistance works well. If materials change or have hard spots, chipping happens easily.

4. What to note for heat treatment? Will hardness drop after a few grinds?

A: Both materials need full vacuum quenching + multiple tempering to harden the entire blade. Do NOT use shallow surface quenching. If you do, the hard layer will wear off after 1–2 grinds, hardness drops fast, and the blade wears out quickly.

5. How to extend blade life for highly abrasive glass fiber plastics (besides material choice)?

A: Add PVD AlTiN or TiCN coating. It reduces friction, resists wear from glass fiber particles, prevents material sticking, and makes the blade last much longer.

6. Why does SKD11 chip often?

A: It’s mainly because SKD11 is brittle and cannot handle the impact from glass fiber or high-hard plastics. Replace it with DC53 to fix the problem.

7. If DC53 still chips, is it a material problem?

A: No, it’s not a material problem. Common reasons include:    Blade edge is too sharpSpindle speed is too highBlade gap is not rightHeat treatment made it too hard, with not enough tempering

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Global Supply: Heavy-Duty Low Speed Shredder Blades & Shredder Teeth

We manufacture premium Low Speed Shredder Blades (Material: SKD-11, DC-53) engineered for high-torque, low-speed shredding of bulky waste. Our shredder teeth and hooks feature exceptional impact resistance and toughness, optimized for processing car tires, scrap metal, electronic waste, and municipal solid waste (MSW). Designed for maximum bite and extended service life in dual-shaft and multi-shaft shredders.

Multi-language Index for Heavy-Duty Shredding & Waste Management:

English: Low Speed Shredder Blades | Shredder Teeth | Dual-Shaft Shredder Hooks

French (Français): Lames de broyeur à vitesse lente | Dents de broyeur | Couteaux pour broyeur à deux arbres
Portuguese (Português): Lâminas de triturador de baixa velocidade | Dentes de triturador | Ganchos para triturador de eixo duplo
Polish (Polski): Noże do rozdrabniaczy wolnoobrotowych | Zęby do rębaka | Noże do rozdrabniaczy dwuwałowych
Turkish (Türkçe): Düşük Devirli Parçalayıcı Bıçakları | Parçalayıcı Dişleri | Çift Şaftlı Parçalayıcı Kancaları
Vietnamese (Tiếng Việt): Lưỡi dao máy nghiền tốc độ chậm | Răng máy nghiền | Dao băm máy nghiền hai trục
Thai (ภาษาไทย): ใบมีดเครื่องย่อยความเร็วต่ำ | ฟันเครื่องย่อยขยะ | ใบมีดเครื่องย่อยแบบสองแกน
Filipino: Mga Blade ng Low Speed Shredder | Mga Ngipin ng Shredder | Mga Hook para sa Dual-Shaft Shredder
Arabic (العربية): شفرات مفرمة بطيئة السرعة | أسنان المفرمة | خطافات مفرمة ثنائية المحور
Hindi (हिन्दी): कम गति वाले श्रेडर ब्लेड | श्रेडर के दांत | डुअल-शाफ्ट श्रेडर हुक
Indonesian (Bahasa Indonesia): Pisau Shredder Kecepatan Rendah | Gigi Mesin Penghancur | Kait Shredder Poros Ganda
Malay (Bahasa Melayu): Bilah Pencincang Kelajuan Rendah | Gigi Pencincang | Cangkuk Pencincang Gandar Berganda
Dutch (Nederlands): Langzaamdraaiende versnippermessen | Shredder tanden | Dubbelassige shredder haken
Swedish (Svenska): Långsamtgående flishuggsknivar | Shredder-tänder | Krokar för dubbelaxlig flishugg
Hungarian (Magyar): Lassú fordulatú aprítókések | Aprítófogak | Kétpályás aprító horgok
Greek (Ελληνικά): Λεπίδες θρυμματιστή χαμηλής ταχύτητας | Δόντια θρυμματιστή | Άγκιστρα θρυμματιστή δύο αξόνων
Danish (Dansk): Lavhastigheds neddeler knive | Shredder tænder | Kroge til dobbeltakslet shredder
Norwegian (Norsk): Lavhastighets kvernkniver | Kverntenner | Kroker for dobbeltakslet kvern
Finnish (Suomi): Hidaskierroksisen murskaimen terät | Murskaimen hampaat | Kaksiakselisen murskaimen koukut
Czech (Čeština): Nože do pomaloběžného drtiče | Drtící zuby | Háky pro dvouhřídelové drtiče
Romanian (Română): Cuțite tocător de viteză mică | Dinți de tocător | Cârlige pentru tocător cu două axe
Slovak (Slovenčina): Nože do pomalobežného drviča | Drviace zuby | Háky pre dvojhriadeľové drviče
Bulgarian (Български): Ножове за нискооборотни шредерни машини | Зъби за шредер | Куки за двувалови шредери
Croatian (Hrvatski): Noževi za sporohodne drobilice | Zubi drobilice | Kuke za dvoosovinsku drobilicu
Ukrainian (Українська): Ножі для низькошвидкісного подрібнювача | Зуби подрібнювача | Гакі для двоосьового шредера
Azerbaijani (Azərbaycan dili): Aşağı sürətli doğrayıcı bıçaqlar | Doğrayıcı dişlər | İkivallı doğrayıcı qarmaqları
Bengali (বাংলা): লো স্পিড শ্রেডার ব্লেড | শ্রেডার দাঁত | ডুয়াল-শ্যাফট শ্রেডার হুক
Tamil (தமிழ்): குறைந்த வேக ஷிரெடர் பிளேடுகள் | ஷிரெடர் பற்கள் | டூயல்-ஷாஃப்ட் ஷிரெடர் கொக்கிகள்
Persian (فارسی): تیغه های خردکن دور پایین | دندانه های خردکن | قلاب های خردکن دو شفت
Hebrew (עบริת): להבים למגרסה במהירות נמוכה | שיני מגרסה | ווים למגרסה דו-צירית
Afrikaans: Laespoed-versnipperaar lemme | Versnipperaar tande | Dubbelas-versnipperaar hake

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Phone:
86-15852949220
Address:
Jiangning District, Nanjing
About Us

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.

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