40x40mm Single Shaft Shredder Blades

40x40mm Single Shaft Shredder Blades: The Industry Standard for Efficiency

Precision Engineering & Universal Compatibility

• Every blade meets strict size requirements, so it fits most major shredder brands.

• Our in-house precision CNC machining optimizes the blade’s surface (concave or flat) for clean cuts and less energy use during shredding.

Specifications: 40x40x20/25mm

• Thickness options: 20mm or 25mm

• Standard M10 or M12 countersunk holes

• Fits tightly and securely in your shredder’s rotor pockets

Lower TCO with Superior Steel

• Recycling facilities save money on total ownership (TCO).

• Our long-lasting steel reduces how often you need to change blades.

• Your production line runs longer and makes more profit.

Core Function

• Plastics, wood, rubber, cables

• Light metals, paper fiber

Blade Materials: D2 vs. DC53

D2 Alloy Steel

• Very wear-resistant (great for rough materials)

• Hardness: HRC 58–60

• Stable structure and strong resistance to friction

• Less tough than DC53; easy to chip

• May chip when processing materials with impurities

DC53 Alloy Steel

• High hardness and toughness

• Key benefits: resists impact well and balances wear resistance

• Twice as tough as D2; hard to chip or crack

• Hardness: HRC 62–63 (higher than D2)

• Works well with mixed or contaminated materials

Design Features

Structure & Working Principle

• Blades are fixed to the tool holder on the rotating main shaft (via a central hole).

• They work with the fixed blade on the machine to cut materials.

• The main shaft’s rotation provides power for efficient crushing.

• Benefits: strong grip, fast cutting, easy to maintain.

Dimensions & Applications

Small Size (35×35×25mm)

• High blade density, fine cuts

• Suitable for soft materials (plastic film, woven bags)

• Output size: 20–25mm

• Good for small/medium precision shredders

Standard Size (40×40×25mm, 60×60mm)

• Balances efficiency and versatility

• Handles solid blocks, cartons, plastic bottles, rubber

• Output size: 25–40mm

• Fits most regular single-shaft shredders

Large Size (80×80×30mm)

• High strength and impact resistance

• Made of D2/DC53 steel

• Processes large, hard materials (wood, tires, thick plastic, metal cans)

• Output size: 50mm+; needs high-power equipment

Mounting Hole & Stability

• Central holes: convex or flat (fits different tool holders)

• Stays secure during high-speed rotation and cutting impact

• Some blades have inward-recessed cutting edges: improves cutting precision by optimizing clearance with the fixed blade

Manufacturing Process

1. Blanking & Forging

• Use high-quality alloy steel billets

• Cut and forge precisely to improve the steel’s internal structure

• Makes blades tougher and stronger (prevents breakage)

2. Heat Treatment

• DC53: heated and cooled to HRC 62–63 (max toughness and wear resistance)

• D2: multi-step heat treatment to HRC 58–60 (better wear resistance)

3. Precision Machining

• Use CNC machines, wire cutting, and precision grinding

• Ensures accurate size, flatness, and sharp cutting edges

• Guarantees proper clearance with tool holders and fixed blades (better cutting stability)

4. Quality Inspection

• Every batch is fully inspected:

• Hardness testing, size check, surface defect detection

• Ensures consistent, reliable performance for non-stop industrial use

Daily Maintenance

• Regularly clean material residue from the blade surface

• Check for wear while cleaning

• Replace or regrind blades promptly to keep efficiency high