What Are the Two Types of Chamfers — And Which One Does Your Plate Need?

The Pain Point: Ordering “a Chamfer” Without Specifying Which Kind

A shop drawing that just says “chamfer the edge” leaves out a critical detail: chamfers come in two distinct forms, and picking the wrong one means sending the plate back through a second machine. Getting this right the first time on a Plate Chamfering Machine saves a rework cycle that’s easy to avoid once the difference is clear.

Angled Chamfer vs Radius Chamfer: The Two Types Explained

An angled chamfer (marked C2, C3, and so on) is a flat cut at a fixed angle, usually 45°, that replaces one sharp corner with two smaller ones. A radius chamfer (marked R2, R3) instead curves the edge into a smooth arc, removing the sharp corner entirely rather than just softening it. Both exist for the same underlying reason — removing a sharp edge that’s unsafe to handle and prone to poor paint or coating adhesion — but a radius profile holds up better under repeated handling and coating cycles than a flat angled cut.

Three Ways to Produce Either Chamfer Type

Bench-Type Chamfering Machine

This table-mounted Chamfering Machine switches between R2, R3, C2 and C3 profiles on the same unit, clamping 6–40mm plate at 790W and 2,800 r/min spindle speed. Because both chamfer types run through the same machine, a shop doesn’t need separate equipment for angled versus radius work — just a different insert.

Self-Propelled Edge Milling Machine

For larger plate, this self-propelled Edge Milling Machine covers 6–60mm clamp thickness with a 10–60° adjustable angle, either feeding smaller plates through the cutter or walking itself along the edge of larger ones. It’s built primarily for weld-bevel prep rather than pure cosmetic chamfering, producing a surface finish smooth enough (Ra 3.2–6.3) to skip secondary deburring.

Handheld Portable Beveler

At 33kg, this handheld Portable Plate Beveler cuts a fixed-angle chamfer (25°, 30°, 37.5° or 45°) on 4–16mm plate at 400W — the option for job sites where the plate can’t be brought to a bench machine and only a straight angled edge is needed, not a radius.

Specification Comparison

Spec Bench Chamfering Self-Propelled Milling Handheld Portable
Chamfer Type Angled (C) or Radius (R) Angled (weld bevel) Angled (fixed)
Plate Thickness 6–40mm 6–60mm 4–16mm
Angle / Profile R2/R3, C2/C3 10–60° adjustable 25°/30°/37.5°/45°
Power 790W Size-dependent 400W
Best Fit Pre-paint edge prep Weld bevel, large plate Site work, small plate

Matching the Chamfer Type to the Next Step

If the plate is headed for painting or coating, a radius chamfer generally outperforms an angled one for durability. If it’s headed for welding, the chamfer needs to match the joint design rather than a cosmetic profile at all. Every machine in this range ships CE certified, and as a CE Certified Plate Beveler, meets standard procurement requirements for shipbuilding, pressure vessel, and structural steel work regardless of which chamfer type a job calls for.

Frequently Asked Questions

Q1: What are the two types of chamfers?

A: An angled chamfer is a flat cut at a fixed angle (commonly 45°), while a radius chamfer curves the edge into a smooth arc — both remove a sharp corner, but a radius profile holds up better against repeated handling and coating wear.

Q2: Which chamfer type is better before painting a steel plate?

A: A radius chamfer is generally preferred for painted or coated parts, since it removes the sharp transition points where paint and powder coat tend to thin out and fail first.

Q3: Are plate chamfering machines that produce both chamfer types CE certified?

A: Yes, machines across this range are supplied as a CE Certified Plate Beveler, meeting baseline safety requirements for industrial edge preparation equipment.

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Post time: Aug-17-2026