Sugarcane Shredder

A sugarcane shredder uses swinging hammers on a high-speed rotor to break cane into fibers and improve juice extraction in subsequent milling. Wear is concentrated on hammer tips, hammer bodies, grids and feed and discharge impact zones. Main shafts, hammer pins, bearings and seals are key maintenance parts.

Sugarcane shredder

Equipment Section View

Sugarcane shredder section view showing component positions
Sugarcane shredder section view showing component positions

A sugarcane shredder uses swinging hammers on a high-speed rotor to break cane into fibers and improve juice extraction in subsequent milling. Wear is concentrated on hammer tips, hammer bodies, grids and feed and discharge impact zones. Main shafts, hammer pins, bearings and seals are key maintenance parts.

Equipment Parts

Part Identification and Technical Details

Explore part names, images, material options and technical requirements. Select a card to open the corresponding replacement part page.

Major Components and Assemblies

Major Components and Assemblies

Individual and Maintenance Parts

Individual and Maintenance Parts

Hammer tip
01

Hammer Tip

Bimetallic high-chromium white iron, Cr 18–28%, C 2.4–3.4%; or WC-Co cemented carbide

Technical Requirements
High-chromium layer approximately 58–66 HRC; cemented carbide approximately 88–92 HRA; no through-cracks at the joint with the hammer body
Hammer body
02

Hammer Body

42CrMo, 35CrMo or low-alloy cast steel; the working end may use Fe-Cr-C hardfacing

Technical Requirements
Approximately 28–40 HRC after quenching and tempering, with tensile strength typically ≥850 MPa; prioritize impact toughness
Hammer pin
03

Hammer Pin

42CrMo / 40Cr, quenched and tempered with surface induction hardening or nitriding

Technical Requirements
Core approximately 28–36 HRC; surface approximately 50–58 HRC; pin straightness and fit clearance as specified in the drawing
Shredder grid
04

Shredder Grid

Cr20–Cr28 high-chromium cast iron, martensitic wear-resistant steel or composite castings

Technical Requirements
Working layer approximately 55–65 HRC; use a composite design with a tough substrate where large metal objects cause impact
Rotor Discs
05

Rotor Discs

Q355, grade 45 steel, 42CrMo or low-alloy cast steel

Technical Requirements
Approximately 220–320 HBW; welded rotors require non-destructive testing and dynamic balancing of the complete assembly
Main Shaft
06

Main Shaft

Quenched and tempered 42CrMo / 34CrNiMo6 steel

Technical Requirements
Tensile strength approximately 900–1100 MPa and yield strength approximately ≥750 MPa; journals may be induction hardened
Bearings and Bearing Housings
07

Bearing / Bearing Housing

GCr15 bearing steel; QT500-7 ductile iron or cast steel bearing housing

Technical Requirements
Bearing raceways approximately 58–64 HRC; bearing housing tensile strength approximately ≥500 MPa
Feed Chute Liner
08

Feed Chute Liner

NM400/NM450 or bimetallic composite wear plate

Technical Requirements
Hardness approximately 370–480 HBW; use wear-resistant steel rather than brittle ceramics at high-impact feed points
Discharge Chute Liners
09

Discharge Chute Liners

NM400, rubber or polyurethane

Technical Requirements
Steel plate approximately 370–430 HBW; polyurethane approximately 85–95 Shore A
Housing liner
10

Housing Liner

NM400/NM450 or high-chromium composite plate

Technical Requirements
The substrate must remain weldable; the high-chromium working layer is generally approximately 55–65 HRC
Dust seal
11

Dust Seal

NBR, HNBR or polyurethane; FKM is an option for hot oil environments

Technical Requirements
NBR approximately 70–90 Shore A; polyurethane approximately 90–95 Shore A; control lip and shaft sleeve surface finish to the sealing requirements

Materials for similarly named parts may differ by OEM, machine model and operating conditions. Confirm the machine model, OEM drawing number and measured dimensions before ordering or manufacture.

Materials for similarly named parts may differ by OEM, machine model and operating conditions. Confirm the machine model, OEM drawing number and measured dimensions before ordering or manufacture.

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