Size a weld-on edge for a UTV plow by matching the edge to the moldboard’s bolt pattern and width, then fixing thickness by the plow’s class and the surfaces it works on: measure the existing cutting edge or the weld land, confirm the hole centers and edge width, and choose thickness and steel grade from the machine’s weight and duty cycle rather than from the blade’s nominal size alone. The measurement takes minutes; the specification decision is where most purchasing errors start.
Start from the moldboard, not the machine
A weld-on edge replaces the bolt-on wear part, so the moldboard interface is the governing dimension. The plow’s nominal width tells you what class of edge you are in; the moldboard tells you what will actually fit and weld.
The five dimensions that define a weld-on edge
Every weld-on edge is described by a small set of dimensions, and all of them have to be confirmed against the plow before an order is placed. The list below is the minimum data set a distributor or OEM buyer should hold for each SKU.
- Overall length — the edge’s full width, usually matched to the moldboard’s bottom width with a small allowance at each end.
- Edge width (depth) — how far the wear material projects forward of the weld land, which sets how much material can be consumed before replacement.
- Thickness — the plate thickness at the wear face; this is the main lever on stiffness and wear life.
- Weld land geometry — the flat, unprepared surface on the moldboard where the edge seats, including any step or bevel.
- Bevel and profile — the leading edge angle and whether the profile is straight, segmented or shaped to the moldboard curve.
Thickness and steel grade: what drives the choice
Thickness is a function of plow class, machine weight and the abrasive load the edge will see. A light UTV plow on gravel and snow behaves very differently from the same plow pushed into packed ice or used on a paved lot with sand residue.
As a working rule, edge thickness scales with the plow’s class and the machine’s operating weight, and steel grade is chosen for a balance of wear resistance and weldability. Through-hardening grades resist abrasion better but need controlled welding; milder grades weld more forgivingly but wear faster. The right answer depends on duty cycle and on who does the welding. SENTHAI’s cutting edge range lists thickness and grade options per profile, and the wear parts overview covers how edge, shoe and bolt wear interact on the same plow.
| Plow class | Typical edge thickness band | Steel grade direction | Wear life expectation |
|---|---|---|---|
| Light UTV / residential | Thin band, at the low end of the range | Mild to medium, weld-friendly | Several seasons on snow and light gravel; depends on surface |
| Mid UTV / commercial light | Mid band | Medium abrasion-resistant | One to a few seasons; depends on ice and abrasive content |
| Heavy UTV / fleet | Upper band | Higher abrasion resistance, controlled welding | Depends heavily on operator technique and surface mix |
Welding and fit-up considerations
A weld-on edge is only as good as its seat. The weld land must be clean, flat and free of the old edge’s residual weld; a gap under the new edge concentrates stress and shortens life regardless of steel grade.
Tack the edge in place, check projection and alignment along the full length, then weld in a sequence that balances heat input. Thin edges distort more easily than thick ones, so stitch or step the weld on lighter sections. If the plow previously used a bolt-on edge, confirm whether the moldboard has been modified; the conversion rules are covered in can you flip a cutting edge — reversible rules.
What this means commercially
For a distributor or fleet buyer, edge specification is a supply-chain decision as much as an engineering one. Getting the dimensions right the first time avoids return freight and field failures; getting the grade right sets reorder frequency and total cost per season.
MOQ and lead time depend on profile, thickness and grade, and on whether the item is a stock pattern or a custom length. Custom lengths and non-standard weld lands typically carry higher MOQ and longer lead time than stock profiles. Total cost should be assessed per season of service, not per piece: a thinner edge with a lower unit price can cost more if it is replaced twice as often. Specification risk sits mainly in the weld land and thickness — an edge that is dimensionally correct but too thin for the duty cycle will fail at the weld or wear through early. Price and lead time come from a written quote; specifications come from the product page.
Specification checklist before you order
Run this checklist against the plow before releasing a purchase order. It is short, but each item has caused a wrong shipment at some point.
- Measure the moldboard’s bottom width and the existing edge’s overall length.
- Record the weld land depth and confirm it is flat and clean.
- Measure the existing edge thickness, or the moldboard step if no edge is fitted.
- Note the bevel angle and profile shape along the full length.
- Confirm the plow class and the machine’s operating weight.
- Identify the dominant surface: snow, gravel, packed ice, paved lot.
- Decide who welds, and choose grade accordingly.
Quick summary
Weld-on edge sizing is a measurement task first and a metallurgy decision second: match length, width, thickness and weld land to the moldboard, then choose grade from duty cycle and welding capability. Thickness and grade drive wear life and total cost per season more than unit price does.
Sources checked on 2026-11-12: SENTHAI Tools product pages for cutting edges and plow wear parts; internal specification notes on weld-on edge dimensions and thickness bands. No independent field study was used.
Three more perspectives
Limits
This page does not provide a size chart for a specific plow model, does not certify weld procedures, and does not substitute for measuring the actual moldboard. Thickness bands and life expectations are ranges that depend on machine, surface and operator; they are not guarantees. Confirm all dimensions against the physical plow and obtain price and lead time from a written quote.
