Silage & Forage Blades

Built for the
hardest cutting.

Curved serrated, straight bar, and double-notch blades for silage wagons, TMR mixers, and forage harvesters. 28MnCrB5 chromium-boron steel at 48–52 HRC. Custom profiles to your drawing.

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3.5 mm
Standard thickness
48–52
HRC hardness
28MnCrB5
Steel grade
3 profiles
Standard range
Silage and forage blades — curved serrated, straight bar, and double-notch profiles
Blade profiles

Three profiles.
Every application.

01
Silage wagon · Forage harvester
Curved Serrated Blade
Curved arc body with aggressive serrated edge for clean chopping of maize, grass, and wholecrop silage. The arc geometry increases dwell time against the stationary counter-blade, ensuring consistent cut length and low power demand. Available uncoated or powder-coated orange for easy wear monitoring.
Thickness3–8 mm (custom)
ProfileCurved arc, serrated edge
Hardness48–52 HRC
FinishBare / Powder coat orange
Material28MnCrB5
CustomTo drawing
02
TMR mixer · Feed wagon
Straight Bar Knife
Flat bar knife for TMR mixer augers and feed wagons. Works in shear against a fixed counter-knife to chop and mix long-stemmed hay, straw, and silage. Simple geometry makes replacement fast — bolt-on without alignment adjustments. High hardness extends service life between changes.
Thickness3–8 mm (custom)
ProfileStraight bar, plain edge
Hardness48–52 HRC
FinishBare metal / Coated
Material28MnCrB5
CustomLength & hole pattern to drawing
03
Mixer wagon · Cutting rotor
Double-Notch Blade
Symmetric double-notch profile for cutting rotor and mixer applications. The notch geometry grips and pulls material into the cutting plane before severing it — effective on long grass, silage bales, and straw. Symmetric design allows the blade to be flipped when one edge dulls, doubling service life before replacement.
Thickness3–8 mm (custom)
ProfileDouble notch, symmetric
Hardness48–52 HRC
ReversibleYes — flip when edge dulls
Material28MnCrB5
CustomNotch geometry to drawing
Applications

Where these blades work.

01
Silage Wagons
Curved serrated blades on the cutting rotor chop incoming material to length. High HRC prevents premature edge wear on abrasive maize and wholecrop.
02
TMR Mixers
Straight bar knives on vertical or horizontal augers shear long-stemmed hay and straw. Simple bolt-on replacement — no calibration needed.
03
Forage Harvesters
Curved serrated blades on drum or flywheel cutterheads. Precision geometry ensures consistent theoretical length of cut (TLC) and uniform chop for optimal fermentation.
04
Feed & Diet Wagons
Double-notch and straight bar blades in counter-knife assemblies. Reversible blades reduce downtime — one set lasts twice as long before replacement.

28MnCrB5 —
not standard spring steel.

Most forage and silage blades in the Indian market are made from 65Mn spring steel — adequate, but limited in hardenability through thicker sections. We manufacture in 28MnCrB5 chromium-boron steel, the same grade used for our tillage disc blades. The boron addition gives deep, consistent hardness through the full 3.5mm cross-section after press quenching — not just a hardened surface skin. The result is a blade that holds its edge longer in abrasive crop conditions and resists the impact loads of hitting stones or soil clods in the cutting chamber.

Steel grade
28MnCrB5
Hardness
48–52 HRC
Thickness
3–8 mm
Process
Press quench
Finish options

Two finish options standard.

Bare metal (shot-blasted)
Shot-blasted to Sa 2.5 cleanliness using our ADL Blastek machine. Clean steel surface ready for direct installation. Standard for OEM supply and replacement market. Blades can be oiled for storage and shipping.
Powder coat orange
Agricultural orange powder coat for visual wear monitoring — when the coating is gone, the blade is due for replacement. Also provides corrosion protection during storage and shipping. Preferred for retail and dealer channels where shelf presentation matters.

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Send us your blade drawing, sample part number, or machine make and model. We'll confirm the correct profile, quote, and lead time within 48 hours.

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