Diamond Segment For Core Drill Bit Blank
| Field | Value |
|---|---|
| Product | Diamond Segment for core drill bit blank |
| Other name | diamond segment for concrete core drill bit; diamond segment for reinforced concrete drilling |
| Classification | Diamond core drill bit |
| Diameter range | D36 – D400; large diameter customizable |
| Performance | Stable performance, strong drilling force, easy to weld |
| Custom | Special specifications can be customized |
| Color | Customizable |
| Logo | Laser marking, UV marking, silk screen marking |
| Packing | Single piece packaging in cardboard boxes |
Two Ways To Fix A Segment To A Barrel
A bare segment has to be joined to the steel barrel before it can cut anything. Two methods are in general use, and they are not interchangeable - the choice follows the duty the bit will see.
Laser welding
A high-power laser fuses the segment into the steel, giving a metallurgical bond that resists heat and shock. This is the standard for reinforced concrete and heavy-duty bits.
High-frequency brazing
Induction heating melts a silver-based filler between segment and steel. Lower cost, and it suits light-to-medium dry cutting on soft materials.
Laser weldingSegment and steel fused into one body along the joint.
High-frequency brazingA silver filler layer bonds segment to steel under induction heat.
Huicetools runs laser welding on its own welding line for heavy concrete tools, and produces finished blades, core bits and grinding shoes under OEM for a number of international brands. If you are retipping in your own workshop, the segment is supplied ready to weld - no pre-treatment beyond cleaning the seat.
Drilling Work This Segment Is Built For
These segments are engineered to excel in heavy-duty applications. The list below is where they are normally specified - not a limit on where they can be used.
HVAC and air conditioning
Penetrations for refrigerant and duct runs through structural walls and slabs.
Utility piping
Sleeves and service penetrations through reinforced concrete.
Highway infrastructure
Bridge maintenance, road sign installation and airport runway drilling.
Core drilling in reinforced concreteHVAC, piping, highway and bridge work - the duties these segments are built for.
Ordered diamond layoutDiamonds set in a controlled pattern, so density stays even across the cutting face.
Arix Diamond SegmentNew design butterfly shape arix(martix) diamond segment.for core drill bits
Made On Our Own Line
Huicetools has manufactured diamond tools in Quanzhou since 2006. A segment goes through five steps on our line: batching, cold pressing, hot-press sintering under heat and pressure, demolding and trimming, and inspection before it is packed.
The step that decides how a segment performs is the bond recipe - the part most suppliers copy but few develop. Our engineers tune diamond concentration and the cobalt-copper-iron matrix against the concrete you are actually drilling, which is why the same standard size can be optimised for soft, medium or hard concrete.
BatchingDiamond grade, grit size and the metal bond formula are selected per target material.
SinteringHeat and pressure turn the mixed powder and diamond into a solid segment.
Inspection and packingSegments are checked before they go into single piece cardboard boxes.
Questions About Core Bit Segments
Which segment is best for reinforced concrete?
For reinforced concrete, choose a segment with high-grade tougher diamond grit, a medium-to-hard metal bond, a wider profile often built with protection teeth or a tapered/layered design, and laser welding to withstand the heat and shock from rebar. A plain green-concrete segment will glaze and wear out quickly on steel. We formulate dedicated reinforced-concrete segments that hold up against rebar while keeping cutting speed, and adjust the bond after reviewing your machine weight, feed pressure and local concrete hardness.
What bond for hard concrete?
For hard, dense concrete, use a softer-bond segment. Hard concrete abrades the matrix slowly, so a soft bond wears faster to expose fresh diamond and prevents glazing; a hard bond on hard concrete polishes over and stops cutting. Softer abrasive concrete, in turn, needs a harder bond to avoid premature wear. Send us your concrete description or a sample and we recommend soft, medium or hard bond rather than a default grade.
How long does a segment last cutting concrete?
Service life varies with concrete hardness, aggregate type, rebar content, cutting speed, feed pressure and wet or dry cooling. As a rough reference, a standard segment may cut tens to a few hundred linear metres before wearing out, and rebar contact shortens this substantially. Rather than promising a fixed metre count, we select the bond to maximise life on your material, and production consistency across batches means the wear you measure on the first segment repeats on the whole box.
Can a segment cut rebar?
Yes, a properly formulated reinforced-concrete segment can cut through rebar, but steel wears the bond faster than concrete and should not be the main cutting target. Prolonged steel contact raises heat, causes diamond loss and may break the segment. Use a dedicated rebar-grade segment, cut steadily instead of forcing, and apply water cooling when possible.
Can I replace the segment on a core drill bit?
It depends on the bit type. Modular, replaceable-segment core bits let you swap worn segments on the barrel to save cost on large diameters; integral one-piece brazed segments cannot be replaced individually and the whole bit is discarded when worn. Replacement requires removing the old segment, cleaning the seat, and brazing the new segment at the correct angle and pitch in a workshop. We manufacture both modular and integral core bits and can also supply loose custom segments to tool makers for their own assembly.
Tell us the barrel and the concrete
Send the bit diameter, the wall thickness, the segment count on your barrel and what you are drilling. We come back with the segment size, the bond grade and a sample plan.
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