Cutting Edges& Blade Plates

Four values carry most of the risk: overall length, the width from the cutting side to the back edge, the plate thickness measured away from the worn bevel, and the hole pattern. For the pattern, measure from the side edge to the centre of the first hole, then the distance between hole centres, and the hole diameter, and confirm the holes are countersunk. The same machine model can have carried more than one bucket over its life, so the worn plate is measured rather than the machine being trusted for the fit.

A double bevel edge has a bevel on both long sides and is normally fastened with countersunk plow bolts, so when one edge dulls the plate can be unbolted, turned through 180 degrees and worked on the second edge. That doubles the interval for the same part, and it is the usual arrangement on a loader bucket. It only applies if your bucket carries a bolted double bevel edge: a welded or single bevel plate cannot be reversed, so confirm how the existing edge is fixed before a replacement is chosen.

They preserve the reference labels of the source catalog an entry was collected under. They are not length, width, thickness or a universal part number, and reading them as measurements is one of the commonest ways to end up with a plate that does not fit. Identify the part from the drawing, from the number on the plate if it is legible, or from measurements, and send the machine model as context rather than as the fitment.

The catalog photographs and source names do not establish how a given plate was produced, so no single route is claimed for the group. Plates of this type are commonly made from heat-treated wear-resistant or boron steel, where the hardness achieved in treatment is what governs how quickly the bevel wears back. For a specific part the material grade, hardness and manufacturing route are agreed during technical review, and the agreed requirement is recorded so it can be checked on the delivered plates.

Hardfacing can extend the life of an edge where the wear is even and does not reach the bolt holes, and where the plate is not cracked, bent or worn back to the bucket body. It stops being a sensible option once the bolt holes are oval, the plate is deformed, or the bucket itself is being touched, because then the fit rather than the surface is what has failed. Send photographs of the wear and the hole area so the two cases can be told apart before any work is done.

A bolted edge is only as good as its fastening. Plow bolts work under vibration, they stretch in service, and a reused bolt can fail and let the plate go, which is why the fasteners are renewed with the edge rather than kept. The mounting face also matters: rust, old weld spatter or a distorted surface stops the plate seating flat, so it is cleaned and checked, and the bolts are tightened in a cross pattern to the agreed torque. If an edge keeps loosening, the holes or the base edge are the likely cause.

These are catalog references identified by the source machine or brand label; they are not parts supplied by the equipment manufacturers, and brand names and logos on this page identify the source reference of each entry without implying affiliation, authorization or endorsement. Fit is confirmed from your own part number, drawing or measurements. Send the reference of the plate being replaced, or its measured length, width, thickness and hole pattern, and the closest listed entry can be compared against it.