86-15852949220      mt@alasmachinery.com
NANJING ALAS INTERNATIONAL CO., LTD
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Slow Speed Crusher Knives

Our Slow Speed Crusher Knives are the ultimate solution for manufacturers seeking "zero-waste" production in injection molding. Designed specifically for low-RPM, high-torque machines, these blades provide a clean, scissor-like cut rather than shattering the plastic.
We use premium SKD-11 (D2) and DC53 tool steels, processed with vacuum heat treatment to reach a hardness of 58-62 HRC. The precision-ground staggered-tooth design reduces the cutting resistance, ensuring consistent regrind size and virtually eliminating the generation of "fines" or dust, allowing you to reintroduce 100% of your regrind back into the production process.
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How Blade Quality Affects Slow Speed Crushing Efficiency?

In modern injection molding, good slow-speed crusher blades make beside-the-press recycling more efficient.High-speed granulators use impact.Slow-speed systems (25–30 RPM) use high-torque shearing.They need special steel to cut plastic cleanly.

The Metallurgy of Low-RPM Shearing

Low-speed blades work under high pressure with little cooling air.Material choice is very important.

Top blades use SKD-11 or D2 tool steel.They are vacuum-hardened to HRC 58–60.This hardness stops the cutting edge from deforming.It works well with glass-filled plastics and strong engineering resins.It keeps a steady gap between the rotor and stator.

Blades are the most important consumable in recycling.High-quality alloy steel and precision grinding make your system clean, quiet, and profitable.

Slow-Speed Plastic Crusher

A slow-speed beside-the-press crusher is made for injection molding areas.It runs at low RPM, low noise, and low dust.It is perfect for recycling sprues and defective parts right away.

Product Features

Low speed: 28–300 RPM.

Less heat, no melting, better recycled material.

Quiet: Soundproof cabinet and sound-absorbing cotton.

Meets industrial noise standards.

No screen: Uniform particles, little powder.

Can mix directly with new material.

Strong blades: SKD-11 and imported steel.

Wear-resistant, long service life.

Automatic feeding: Available on some models for higher efficiency.

Applications

Injection molding recycling: Sprue and reject recycling.

Hard plastics: PC, Nylon, ABS, etc.

Soft plastics: LDPE film, PP woven bags (on selected models).

About Us

We are a professional blade manufacturer.We focus on R&D, production, and sales of industrial blades.We provide efficient, durable, and precise blades for many industries:plastic, rubber, wood, metal recycling, and food processing.

Our Advantages

Quality materials

alloy steel, high-speed steel, tungsten carbide.

Wear-resistant, long life.

Precision manufacturing

CNC machining and professional heat treatment.

Stable size and performance.

Custom service

Many sizes, shapes, and materials available.

Strict quality control

Every blade is tested to meet international standards.

Good after-sales suppor

Fast response and professional help.


Choosing us means choosing quality and reliability.

We look forward to cooperating with you.

low-speed-granulator-bladeslow-speed-shredder-knives-chamber-viewlow-speed-shredder-blades-factory-inventory

Global Supply: High-Precision Slow Speed Crusher Knives & Blades

We manufacture premium Slow Speed Crusher Knives (Material: SKD-11, DC53) engineered for low-noise and dust-free plastic recycling. Our blades feature precise staggered or claw-type designs, optimized for the instant recycling of sprues and runners. Designed for high wear resistance and uniform granulation in professional recycling environments.
Core Market Sourcing Index:
English: Slow Speed Crusher Knives | Silent Granulator Blades

French (Français): Lames de broyeur lent | Couteaux de granulateur silencieux
Portuguese (Português): Facas de britador lento | Lâminas de granulador silencioso
Polish (Polski): Noże do kruszarek wolnoobrotowych | Noże do granulatorów cichobieżnych
Turkish (Türkçe): Düşük Devirli Kırıcı Bıçakları | Sessiz Granül Bıçakları
Vietnamese (Tiếng Việt): Dao máy nghiền chậm | Dao máy băm nhựa chống ồn
Thai (ภาษาไทย): ใบมีดเครื่องบดความเร็วต่ำ | ใบมีดเครื่องย่อยเสียงเงียบ
Filipino: Mga Kutsilyo ng Slow Speed Crusher | Tahimik na Blade ng Granulator
Arabic (العربية): سكاكين كسارة بطيئة السرعة | شفرات المحببات الصامتة
Hindi (हिन्दी): धीमी गति वाले क्रशर चाकू | साइलेंट ग्रेनुलेटर ब्लेड
Indonesian (Bahasa Indonesia): Pisau Crusher Kecepatan Rendah | Pisau Granulator Senyap
Malay (Bahasa Melayu): Pisau Pengisar Kelajuan Rendah | Bilah Granulator Senyap
Dutch (Nederlands): Langzaamdraaiende maalmessen | Geluidsarme granulatiemessen
Swedish (Svenska): Långsamtgående kvarnknivar | Tysta granulatorknivar
Hungarian (Magyar): Lassú fordulatú darálókések | Csendes granuláló pengék
Greek (Ελληνικά): Μαχαίρια θρυμματιστή χαμηλής ταχύτητας | Αθόρυβες λεπίδες κοκκοποιητή
Czech (Čeština): Pomaloběžné mlecí nože | Nože do tichých granulátorů
Romanian (Română): Cuțite concasor viteză redusă | Lame granulator silențios
Ukrainian (Українська): Низькошвидкісні подрібнювальні ножі | Безшумні ножі для гранулятора
Azerbaijani (Azərbaycan dili): Aşağı sürətli üyüdücü bıçaqlar | Səssiz qranulyator bıçaqları
Hebrew (עברית): סכיני מגרסה במהירות נמוכה | להבי גרנולטור שקטים
Secure export wooden crate packaging for heavy-duty low-speed shredder blades

Slow Speed Crusher Knives FAQ

Q1: Why is material choice critical for slow-speed granulator knives?

Slow-speed crushers work with high torque. We use SKD11 (D2) or DC53 tool steel for high hardness and toughness, preventing edge chipping when processing glass-filled plastics or hard engineering resins.

Q2: How do your blades help in reducing dust and fines?

Dust results from blunt edges or improper clearance. Our precision-ground blades maintain a sharp edge and tight rotor-stator tolerance, ensuring clean shearing with minimal dust and uniform regrinds.

Q3: What is the typical service life before sharpening is required?

Vacuum heat-treated (58-62 HRC) blades last 3-5 times longer than standard carbon steel ones, staying sharp through thousands of cycles (varies by processed material).

Q4: Are your knives compatible with brands like Wittmann, Shini, or Moretto?

Yes. We make high-quality replacement knives for major brands (Wittmann, Shini, Moretto, Cumberland) and offer custom tooth profiles and dimensions.

Q5: Can these knives be re-sharpened, and how many times?

Yes, they are designed for multiple re-sharpenings. The deep hardening layer allows edge restoration without losing wear resistance, reducing cost per ton of recycled material.

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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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