Diamond Toolmaking

Coborn is wholly focused on providing engineered solutions for every aspect of the processing of diamonds and superhard materials

Toolmaking

Coborn’s machines are designed for processing the world’s two hardest and most extreme materials: diamond (or ‘cubic carbon’) and its structurally similar sister cubic boron nitride (cBN). Our machines can also easily grind and shape traditional hard tool materials, such as cemented carbide and ceramics.

Numerous forms and formats of diamond and cBN are now available and each has required the engineering of a specialist processing solution.

Toolmaking Products

RG9A Machine in the factory

Reciprocating Grinders

The Reciprocating Grinding series of machines are primarily designed for grinding Polycrystalline Diamond (PCD) and Polycrystalline Cubic Boron Nitride (PcBN). The machines range from manual entry level to fully autonomous systems for lights out production, with tooling and accessory options to cover all applications.

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PG4 machine in factory

Planetary Grinders

The Planetary Grinding series of machines are specifically designed for grinding single crystal diamond. The planetary motion of the wheel allows the grinding direction to be changed so the ‘soft’ direction of the diamond can be found. The choice of machine depends on the application and the level of accuracy required.

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Form Grinding diamond tool production machine FG1A

Form Grinders

These machines have the ability to grind high-accuracy bespoke thread forms, often required for mould tool assembly work, and cut tapered polygons on the end of otherwise cylindrical geometric forms.

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Planetary lapping tool making CNC machines the PL4/5

Lapping Series

Our Lapping Series consists of Planetary Lapping machines which are designed to polish the top surface of PCD discs to a flat mirror finish and can also be used to polish CVD disks and PcBN.
The PL4 is equipped with 4 work heads and a fifth work head can be fitted as an optional extra, whereas the larger PL5 is equipped with 6 work heads as standard.

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Planetary scaife PS2BG on a granite bench for diamond tool production

Bench Series

Coborn’s Bench series includes Planetary Scaif benches which are generally used to polish facets on single crystal diamond tools. They may also be used in gem diamond polishing. The bench combines the high speed rotation of a scaif plate with a relatively slow, smooth, horizontal planetary motion. The planetary motion speed is variable between 0-50 cycles/minute.

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DB4 - Dynamic balancing machine factory image

Balance Series

Our balance series has a couple of static balancing machines the DB3 and DB4 are two plane, dynamic balancing machines, these Dynamic machines can be used to balance any rotating component with the DB3 having a maximum component weight of 20 Kgs, and the DB4 of approximately 45 Kgs.

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Find a solution, it's as easy as 1-2-3

Using our solutions configurator, we can help you find the right processing solution for your business; in only three easy steps.

1 CHOOSE YOUR MATERIAL

PCD Iso inserts
PCD
SELECTED
SCD material
SCD/MCD
SELECTED
CVD Dresser Roll
CVD Diamond
SELECTED
PcBN Drill bit
PcBN
SELECTED
Ceramic CNC machine grinding example
Ceramic
SELECTED
Diamond
Gem Diamond
SELECTED
Carbide tools
Carbide
SELECTED
Selected:

2 WHAT ARE YOU MAKING?

HELICAL PCD TOOL
PCD Helical Rotary Tool
SELECTED
PCD Iso inserts
PCD/PcBN ISO Inserts
SELECTED
Complex tools
Complex Inserts
SELECTED
Ball Nose cutter
Rotary Tools
SELECTED
PCD Disk
PCD Drilling Head Inserts
SELECTED
CVD Dresser Roll
CVD Dresser Rolls
SELECTED
PCD Groover
PCD/PcBN Square Grooving Tools
SELECTED
Stepped drill
PCD Step Drills
SELECTED
CBN Groover Full rad
PCD/PcBN Radius Grooving Tool
SELECTED
Tapered insert
Peripheral ground solid inserts
SELECTED
Mapal style square tool
PCD/PcBN Cassettes
SELECTED
Multi tip PCD cutter
Multi-tipped Cutters
SELECTED
SCD Multi rad
Single Crystal Multiple Radius Tool
SELECTED
Low waviness natural diamond tool
Single Crystal Insert
SELECTED
CVD Wayfer
CVD
SELECTED
Oval oil slug
Oil Drilling Slug
SELECTED
PCD PL illustration
PCD Disk
SELECTED
SCD concave for FG1
SCD Concave Radius Tool
SELECTED
SCD material
SINGLE CRYSTAL HELICAL TOOL
SELECTED
Selected:

3 YOUR SOLUTIONS

SK-KKAS scaife in factory

SK-KKAS

Scaif spindles for diamond polishing

CHOOSE OPTIONS








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SK-KK scaife spindle in the factory

SK-KK

Scaif spindles for diamond polishing

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PS2BS bench in factory

PS2BS

Planetary scaif bench for single for single/mono crystal diamond on steel bench.

CHOOSE OPTIONS







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Planetary scaife PS2BG on a granite bench for diamond tool production

PS2BG

Planetary scaif bench for single for single/mono crystal diamond on granite bench.

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Form Grinding diamond tool production machine FG1A

FG1A

FG1A - Form Grinding Machine for Single Crystal Diamond. Designed to meet the needs of the toolmaker supplying the jewellery and horological industries, the FG1A Form Grinder has a number of features which make it ideal for natural diamond form (Posalux) tooling. The FG1A comes mounted on a Strong tubular steel frame, the control panel and touch screen can be mounted for either right or left handed control and operation. Embedded PC for quick easy programming, can be connected to the internet for remote diagnostics and programming help.

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DB3 balancing machine in the factory

DB3

Dynamic balancing machines

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DB4 machine in factory

DB4

Dynamic balancing machines

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Planetary lapping tool making CNC machines the PL4/5

PL4/5

Planetary lapping machines for PCD

CHOOSE OPTIONS


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RG5 Machine in the factory

RG5

Semi-automatic grinding machine for PCD, PCBN and carbide tool production

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RG9A Machine in the factory

RG9A

CNC reciprocating grinding machine for PCD, PCBN and carbide tool production

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PG3B machine in the factory

PG3B

The PG3B has air bearings for both the pivot and the water cooled wheel spindle. The machine is designed for making: • Low or controlled waviness, radius tools • Multiple facet tools, conical tools The pivot motion is automatic and controlled via a touchscreen. Pivot angle limits, dwell time at end of stroke and pivot speed can all be pre-set. If ‘hard’ spots exist on the diamond then temporary pivot limits can be selected whilst running. Tools are inspected via a VS5G vision system.

CHOOSE OPTIONS




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PG4 machine in factory

PG4

Ultra-high precision, CNC grinding machine for single crystal diamond tool manufacture

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RESET CONFIGURATOR