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NANJING ALAS INTERNATIONAL CO., LTD
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Our high-torque rotors are made from strong alloy steel, with a splined or hexagonal core for maximum torque and no deformation.
Vacuum carburizing heat treatment makes rotors stronger and more durable, even under heavy loads.
Spiral-staggered design distributes stress evenly, reducing wear and extending service life.
Customizable diameter and length fit your equipment, reducing jams and boosting efficiency.
Standard "off-the-shelf" rotors fail early—they’re not made for your specific material’s abrasiveness.
At Alas Machinery, we offer custom rotor and knife solutions that match your torque and throughput needs.
Critical cutting parts for solid waste recycling equipment.
Their wear/impact resistance affects: crushing efficiency, particle size uniformity, energy use, equipment life, and maintenance costs.
Work by meshing, shearing, and tearing materials via two counter-rotating shafts.
Process tough materials (metal, plastic, construction waste) better than single-shaft shredders.
Choosing the right wear-resistant blades cuts costs and boosts efficiency.
Materials are gripped instantly to prevent slipping or jamming.
High torque drives blades to shear and tear large, irregular materials into small, uniform pieces (low speed: 5.5–10 rpm, high torque).
Staggered blades ensure continuous shearing—higher efficiency than single-action shearing.
Shaft design and blade alignment impact operational stability.
Claw options: 2, 3, 6, 8, 12 claws.
More claws = higher shearing frequency + finer particles (suits coarse/fine shredding).
Custom thickness: 10–75 mm. Thicker blades = better impact resistance (for thick metals, hard plastics).
3-part design: blade body + claw insert + auxiliary blade.
Replace worn parts by loosening/tightening bolts—cuts downtime.
Durable materials + vacuum heat treatment; custom-made for your needs.
Main shaft: splined or hexagonal profile.
Blade bore fits the shaft perfectly—even force distribution, no blade cracking or shaft deformation.
Vacuum-hardened blades: consistent hardness, can be resharpened multiple times.
Tough and impact-resistant; surface hardens with use.
Ideal for: municipal solid waste, construction waste, materials with sand/impurities.
Hard, wear-resistant, low-cost, and easy to produce.
Ideal for: soft materials (rubber, paper, fiber).
Very wear-resistant, impact-resistant, minimal heat distortion, sharp edge retention.
Hardness: HRC 58–62 after quenching; longer service life.
Ideal for: medium-to-hard materials (wood, hard plastic, metal scrap, electronic waste, tires).
Balances wear resistance and impact resistance; versatile.
Ideal for: heavy-duty continuous industrial solid waste processing.
Other options: chrome-manganese steel, molybdenum steel, Hardox® equivalents (custom heat treatment available).
Metals: Aluminum cans, paint pails, car shells, scrap steel, aluminum profiles, metal shavings.
Plastics & Rubber: PE/PP film, woven bags, plastic barrels, pipes, electronic housings, circuit boards. Custom design prevents wrapping.
Construction & Bulky Waste: Demolition waste, bulky household waste, aged waste. High-manganese steel handles sand/impurities.
Organic Materials: Furniture waste, branches, garden waste, dewatered kitchen waste.
Special Industrial Materials: Whole tires (reinforced blades), mixed industrial waste.
SKD-11/DC53 blades: can be reground up to 4 times.
4 usable cutting edges per blade—reduces replacement costs.
PLC control + overload reverse protection; 6-fold sealed bearings + high-manganese steel liners.
Quiet operation (<85 dB), low dust, 24/7 reliable running.
Multi-seal design protects bearings from material and grease contact.
Optimized blade design + variable-frequency drive = 15–30% less energy use.
Lowers per-ton operating costs, ideal for high-throughput recycling.
Regular Regrinding: Resharpen worn blades to restore sharpness. High-grade blades can be reground multiple times.
Gap Adjustment: Check and adjust blade-to-blade/liner gaps to keep efficiency and particle size consistent.
Timely Replacement: Replace chipped/cracked blades (we make custom replacements from your drawings/specs).
Bolt Inspection: Tighten blade bolts before/after use to prevent loosening.
Match Material to Application: Use SKD-11/Cr12MoV for hard materials; high manganese steel for high-impact/impurity waste; 9CrSi for soft materials.
Choose the Right Structure: Prioritize modular quick-change blades + hexagonal spindle. 8–12 claws for fine output; 2–3 claws for coarse shredding.
Focus on Cost Efficiency: For municipal waste, use high manganese steel blades + VFD control (balances performance and savings).
Provide Custom Details: Share equipment model, shaft diameter, material type, and target particle size for optimal performance. We make custom non-standard blades.
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.