What Is Solid (Full) CBN Inserts

Solid CBN inserts for hard turning

CBN or PCBN stands for cubic boron nitride, which is formed from hexagonal boron nitride under high temperature and pressure. It is a super-hard material that is second only to diamond in terms of hardness. CBN cutting tools are widely used for the continuous cutting of high-hardness and hard-to-machine materials. Our full and solid CBN inserts work perfectly with the process of “turning replaced by grinding”, which improves the processing quality and efficiency of hard workpiece materials.

What Are Solid CBN Inserts Used For

Solid CBN inserts have a great advantage in processing all ferrous materials, making them the first choice for hard turning of the following materials:

Cast Iron ( Gray Iron, Ductile Iron, Chilled Cast Iron, High Chromium Cast Iron, Alloy Wear-resistant Cast Iron, etc.)

Hard Steel (Harden Steel, Bearing Steel, Die Steel, High Mn Steel, Hig-speed Steel, etc.)

Tungsten Carbide

CBN токарных пластин

ISO code of solid CBN inserts

try to click each button to check the more details

The most typical full CBN inserts for hard turning

CNGN(X)

size: 09-16

RNGN

size: 06-25

RCGN-V(Y)

size: 06-25

SNGN(x)

size: 06-20

SCGN

size 06-20

DNGN

size: 11-15

TNGN(x)

size: 11-22

TPGN

size 11-22

WNGN

size:06-08

Connect with the Sundi Tools Sales Team

We will work with you to take your operations to the next level of productivity and profitability.

Why Us

Who we are

We are committed to providing our customers with high-quality solid CBN products, from raw materials to finished goods. We are devoted to assisting in resolving issues relating to hard turning. Today, Sundi is pleased to employ a skilled workforce with an average tenure of 20 years. From the beginning of the design process to the completion of the application, we are committed to helping you.
full CBN cutting cylinder

The Advantages of Our PCBN Inserts

  • Cost Reduction

    50-70% cost saving compared with carbide inserts, available for repeated grinding, and a higher utilization ratio

  • Great Performance

    The first choice for rough, half, and finish turning with continuous, and intermittent processin

  • Excellent Surface Finish

    Our solid CBN inserts can turn the workpiece instead of grinding, the surface roughness can reach Ra0.4

  • High Machining Efficiency

    Because of its stable physical properties, the efficiency of PCBN for hard turning is 5-10 times of carbide and ceramic inserts.

CBN grade and recommend application

GradeCBN V%Ave particle size (μm)BinderHardness(Hv)Finish/RoughContinuous/Intermittent processingSuggest Handling MaterialWorking material Hardness
SBN63785-9012Al-TiN3300-3600Finish/RoughContinuous processingHSS, cast iron, hardened steel and other difficult processing materials. HRC45-68
SBN50085-906-12Al-TiN3400-3700SemifinishingContinuous processingHSS, cast iron, hardened steel and other difficult processing materials. HRC55-68
SBN68085-9017-20Al-TiN3300-3500Rough/ SemifinishingBothGray Cast iron,ductile cast iron, high hard alloy cast iron, high nickel chromium , high cromium cst iron, high manganese steelHRC45-62
SBN630B80-8520-25Al-TiN3300-3500RoughIntermittent processingGray Cast iron,ductile cast iron, high hard alloy cast iron, high nickel chromium , high cromium cst iron, high manganese steel ≦ HRC60
SBN208090-954Al-Co3500-3700FinishContinuous/
light Intermittent
Gray Cast iron, ductile cast iron, pearlitic cast iron, Ferritic cast iron≦ HRC60

User Case and Application of Solid (Full) CBN Inserts

Solid CBN inserts For Roller

Compare with other brands
Tooling Life

1.1 x

Compare with other brands
Performance

1.4 x

  • Roller

    working application

  • High Speed Steel

    working material

  • HSD80-85

    Roller hardness

  • Finish Machining

    Application

  • Excircle& Slot

    Machine Area

  • RC0604-V

    inserts selection

Full PCBN inserts For Gear

Compare with other brands
Tooling Life

5.7 x

Compare with other brands
Performance

1.2 x

  • driven gear

    working application

  • 20CrMnTiH

    working material

  • HRC 58-62

    Roller hardness

  • Finish Machining

    Application

  • Excircle& End face

    Machine Area

  • DN 1204

    inserts selection

Solid CBN inserts For brake disc

Compare with other brands
Tooling Life

3.3 x

Compare with other brands
Performance

1.3 x

  • brake disc

    working application

  • hardness steel

    working material

  • HB 190

    Roller hardness

  • Finish Machining

    Application

  • Excircle& End face

    Machine Area

  • CNGX 120712

    inserts selection

Connect Us Now

We'd like to share more successful stories with you

trouble shooting list

Sometimes, we are encountering the problems when using the solid inserts, the following are the typical situations that you may face

  • 1

    Choose the appropriate grade of solid CBN material based on the type of material being processed

  • 2

    Before use, ensure that the full CBN insert is installed correctly and is compressed in a close-fitting manner to avoid damage caused by unstable pressing and improper positioning.

  • 3

    When reversing the inserts, ensure that the cutting grooves are clean and that the inserts are properly fitted onto the tool body.

  • 4

    Check for any deformation or damage to the grooves, gasket, and pressing plate.

  • 5

    Chamfer the workpiece without CBN inserts before processing.

  • 6

    Pay attention to the condition of the cutting fluid during hard processing. If any abnormalities are noticed, stop and inspect immediately to avoid unnecessary damage.

  • 7

    Leave some space for the final processing using other types of tools.

  • 8

    The machine used for the process should have good rigidity, minimal vibration, and low transmission amplitude.

Documents

Click the button to download the last catalogue for solid CBN turning inserts

Inserts sharp

C

D

R

S

T

W

Clearance Angle

B

C

N

P

Tolerances

  • G Class: d= ±0.025 m=±0.025

  • M Class: d= ±0.05~±0.15 m=±0.08~±0.2

  • U Class: d= ±0.08~±0.25 m=±0.13~±0.38

machining and fastening feature

A

N

Cutting Inserts Size

Inner cicle diameter[mm]
Code: CCode: DCode: RCode: SCode:TCode: W
6.35060706061104
9.525091109091606
12.7121512122208
15.875161915152710
1616
202020
2525

Thickness [mm]

03

3.16 mm

04

4.76 mm

06

6.36 mm

07

7.94 mm

Corner Radius r mm

  • 02 R=0.2mm

  • 04 R=0.4mm

  • 08 R=0.8mm

  • 12 R=1.2mm

  • 16 R=1.6mm

  • 24 R=2.4mm

Clearance Angle

T

Chamfering

Contact Form SUNDI

PCD Inserts

PCBN Inserts

Solid CBN Inserts

PCD Milling Cutter

PCD Drilling Tools

PCD Reamer

Diamond Special Tool

Diamond Dressers