Size a weld-on edge for a yard loader by matching three dimensions to the mouldboard: the edge’s overall length and depth, the weld prep and parent-metal thickness at the mounting lip, and the bolt or weld pattern already on the bucket or plow. Start from the mouldboard’s straight section, not the machine’s nominal bucket width. The edge must sit flush, carry the load path into the parent metal, and leave enough wear stock for the duty cycle.
Start from the mouldboard, not the machine spec
Yard loaders often carry non-standard buckets, rebuilt plows, or attachments that have been modified in the field. The machine’s published width tells you little about the actual straight edge you are protecting. Measure the mouldboard itself.
Record the usable straight length, the depth from the mounting lip to the leading edge, and the thickness of the parent plate at the weld zone. These three numbers set the envelope for any weld-on edge, whether it is a carbide-tipped product or a plain carbon section.
The three dimensions that decide fit
Weld-on edges are less forgiving than bolt-on edges because the joint is permanent. A small error in length or depth becomes a rework job rather than a bolt swap. Work through the dimensions in order.
- Overall length. Measure the straight section of the mouldboard, then allow for the weld prep at each end. An edge that is too long will not seat; one that is too short leaves the corners of the parent plate exposed.
- Depth and wear stock. The depth from the weld line to the leading edge determines how much material can be consumed before the parent metal is at risk. Heavier yard work and abrasive surfaces call for more depth.
- Weld prep and parent thickness. Confirm the bevel geometry and the plate thickness at the joint. A weld-on edge transfers load directly into the parent metal, so the parent must be sound and thick enough for the weld procedure.
- Mounting pattern. If the existing hardware uses bolts or studs, the pattern on the new edge must clear or match it. Hole spacing and hole diameter are governed by the product page specifications.
- Corner and end treatment. Decide whether the edge runs full width or stops short of the bucket corners, and whether the ends need a chamfer to avoid catching on expansion joints.
Weld-on versus bolt-on in a yard
The choice depends on how often the edge is changed and who does the work. Yard loaders that see mixed duty — snow, gravel, pallet debris — often favour bolt-on for serviceability, while dedicated snow plows may justify a welded edge for stiffness.
| Factor | Weld-on edge | Bolt-on edge |
|---|---|---|
| Joint stiffness | High; continuous load path into parent metal | Depends on bolt count and torque |
| Changeover time | Requires cutting and re-welding | Hand tools, minutes to hours |
| Parent-metal condition | Must be sound and thick enough to weld | Less demanding, but holes must align |
| Wear stock | Set by edge depth; can be generous | Set by edge depth and bolt head clearance |
| Typical use | Dedicated plows, fixed attachments | Mixed-fleet yard loaders |
Carbide-tipped weld-on edges are a common choice where abrasive surfaces shorten life. The carbide inserts carry the leading wear, while the steel body provides the weldable structure. Specification details for the carbide range are listed on the carbide snow plow blade page.
Wear life, cost, and what moves them
No single figure applies across yards. Life and cost depend on surface abrasiveness, operator technique, down-pressure, and how much of the edge is usable before replacement.
In general terms, carbide-tipped edges tend to last longer than plain steel on abrasive surfaces, at a higher initial cost. The payback depends on how many changeovers you avoid and how much labour is tied up in each one. A yard running on salted asphalt with frequent curb contact will see different numbers from one working gravel lots.
Two field checks matter more than any catalogue figure. First, watch for one end wearing faster, which usually points to alignment or down-pressure issues rather than the edge itself — the checks in one end of the edge wearing faster are a practical starting point. Second, inspect the weld zone at every service interval; a weld-on edge hides its condition until it fails.
Specify from the product page, verify on the machine
Dimension ranges, hole spacing, and hole diameters vary by model and by edge family. Treat the published specifications as the starting envelope, then confirm against the actual mouldboard before ordering or welding.
Model differences are covered on the product page. Where a yard loader has been modified, measure rather than assume; a rebuilt bucket may not match any catalogue pattern. For carbide options and their dimensional envelope, refer to the product specifications and cross-check the weld prep against your procedure.
If the edge is being sourced through a public tender, the tabulated dimensions are worth reading closely before committing to a weld-on design — see reading public bid tabulations for cutting edges for how discrepancies typically appear.
What this means for distributors and OEM buyers
For distributors and importers, the commercial exposure sits in the specification: a weld-on edge that is a few millimetres out on length, depth or weld-prep thickness becomes a rework or scrap item rather than a return, so it pays to confirm the three mouldboard dimensions before committing to a stock line. Supply and lead time depend on whether the profile is a standard pattern or a made-to-order section, and minimum order quantities vary by supplier and by whether the edge is plain carbon or carbide-tipped.
Total cost of use should be weighed against wear stock and duty cycle rather than unit price alone, since a shorter-lived edge raises replacement frequency across a fleet. Confirm all dimensions against the product page before ordering.
Quick summary
Size a weld-on edge from the mouldboard’s straight length, depth, and parent-metal thickness, then confirm the weld prep and any existing mounting pattern. Wear life and cost are ranges that depend on surface, operator, and changeover labour, not fixed figures. Verify all dimensions against the machine before welding.
Sources checked on 2026-11-08: SENTHAI Tools product specifications for carbide snow plow blades; field notes on weld-on edge fitment for yard loaders; site talk entries on uneven edge wear and bid tabulation review.
Three more perspectives
Workshop. The weld zone is where failures start. Clean the parent metal to bare steel, confirm the bevel matches the procedure, and do not weld over paint or rust. A fit-up check with the edge clamped in place before welding saves rework.
Purchasing. Compare edges on usable wear stock and changeover labour, not just unit price. A weld-on edge that lasts longer but requires cutting and re-welding may cost more per season than a bolt-on alternative in a mixed fleet.
Field. Watch the first few shifts after fitment. Uneven wear, lifted welds, or a leading edge that rides high all point to a sizing or alignment issue that is cheaper to fix early than after the parent plate is damaged.
Limits
This page does not provide weld procedures, structural calculations, or machine-specific fitment guarantees. It does not cover bolt torque values or carbide grade selection. Dimensions and hole patterns must be confirmed against the product page and the actual mouldboard before any cutting or welding.
