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NTK Cutting Tools

HCC Series

Milling tools for gray and ductile cast iron machining | Ceramic inserts

High‑efficiency cast iron milling with the NTK HCC series
Home / Cast Iron - Unique Solutions / HCC Series

NTK milling cutter selection

Machining gray / Ductile cast iron
JWNXM

Low cutting force × multiple corners

• Reduces insert edge chipping commonly encountered during cast iron machining
• Ideal for machining through surface scale
• Tooling costs are reduced through the use of a unique 6‑corner insert

JFDX

Economy × versatility

  • Extremely economical design using 8-corner inserts
  • Covers a wide range of applications with 45°, 75°, and 88° milling cutters
  • Ceramic inserts with chipbreaker and wiper type are also available
JXTM

High rigidity

  • Allows large depths of cut due to a fine-pitch insert layout, resulting in higher productivity
  • LNX Inserts faeture a special chipbreaker to reduce cutting force
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SeriesFeaturesDCKAPRAPMX
mm inch ° mm inch
JWNXM series

Low cutting force × multiple corners

  • Reduces occurrence of insert edge chipping which is common during cast iron machining
  • Ideal for machining through scale
  • Tooling cost is reduced by using the unique 6 corner insert.
 ⌀63 – 160 2.48 – 6.23 88° -5.5 -.217
JFDX series

Economy × versatility

  • Extremely economical 8-corner inserts
  • Covers various applications with 45, 75, and 88 degree angle milling cutters
  • Ceramic inserts with chipbreaker and wiper are also available
 ⌀63 – 160 2.48 – 6.23 45°,75°,88° -6 -.240
JXTM series

High rigidity

  • Large DOC is possible because of the fine pitch of inserts which results in higher productivity
  • LNX Insert comes with special chipbreaker to reduce cutting force
 ⌀80 – 125 3.15 – 4.921 88° -8 -.315
JQ series

Shoulder milling × Small diameter cutter

  • Capable of 90-degree shoulder milling
  • A variety of cutter diameters as small as ⌀20mm
 ⌀20 – 80 .787 – 3.15 90° -8 -.315
JSDW series

Low cutting force

  • Positive inserts reduce tool pressure and produce excellent surface finish in addition to long tool life
  • Best for milling thin parts thanks to reduced cutting force
 ⌀80 – 160 3.15 – 6.23 45°,75° -6 -.240
SX6 Ceramic -Premium Silicon Nitride-
Features
  • Excellent wear resistance in applications where notch wear appears
  • Stable tool life in the applications where thermal shock resistance is required : such as WET machining or milling
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ISO Work material Coolant Grade vc (m/min) (SFM) ap (mm) (inch) f (mm/rev) (IPR)
Cast iron
Rough Milling		 DRY/WET SX6 450 – 1200 1500–4000 0.5 – 3.5 .020–.140 0.07 – 0.2 .003–.010
SP9 Ceramic + Coating -High Speed machining with low cutting forces-
Features
  • Excellent wear- resistance and chipping resistance with CVD coated high-strength silicon nitride-based ceramic
  • Achieves lower tool pressure with minimal edge preparation
  • Also usablefor finishing
- - - Scroll the table - - -
ISO Work material Coolant Grade vc (m/min) (SFM) ap (mm) (inch) f (mm/rev) (IPR)
Gray cast iron
Rough–Semi-finish Milling		 DRY SP9 350 – 700 1150–2300 -6.0 –.240 0.07 – 0.25 .003–.010
Ductile cast iron
Rough–Semi finish Milling		 DRY 400 – 800 1300–2600 -6.0 –.240 0.07 – 0.25 .003–.010
B30 CBN
Features
  • Excellent wear resistance thanks to high CBN content
  • Designed for finishing cast iron
B52 CBN
Features
  • Excellent wear resistance due to optimum CBN content with special TiC binders
  • Ideal for finishing ductile cast iron and continuous cuts for finishing hardened materials
  • CBN Wiper Insert: Can install 1 or 2 CBN Wiper Inserts with ceramic insert.
  • Available for:
    JQ Series – APCW inserts
    HVM Series – FDX inserts
    HSM Series – SDW inserts
Lineup

JWNXM Arbor type Cutter

JFDX-75 Arbor type Cutter

JFDX Arbor type Cutter

JFDX-45 Arbor type Cutter

JXTM-88 Arbor type Cutter

JQTS Arbor type Cutter

JQTE Shank type Cutter

JSDW-75 Arbor type Cutter

JSDW-45 Arbor type Cutter

Cutter Item number Mountable standard
Type of standard arbor Arbor diameter
JWNXM ⌀63 2.5 FMC ⌀22.0 .087
⌀80 3.0 FMA ⌀25.4 1
⌀100 4.0 FMA ⌀31.75 1.25
⌀125 5.0 FMA ⌀38.1 1.5
⌀160 6.0 FMA ⌀50.8 2
JFDX ⌀63 2.5 FMC ⌀22.0 .087
⌀80 3.0 FMA ⌀25.4 1
⌀100 4.0 FMA ⌀31.75 1.25
⌀125 5.0 FMA ⌀38.1 1.5
JSDW ⌀63 2.5 FMC ⌀22.0 .087
⌀80 3.0 FMA ⌀25.4 1
⌀100 4.0 FMA ⌀31.75 1.25
⌀125 5.0 FMA ⌀38.1 1.5
JXTM ⌀80 3.0 FMA ⌀25.4 1
⌀100 4.0 FMA ⌀31.75 1.25
⌀125 5.0 FMA ⌀38.1 1.5
JQTS ⌀40 1.6   ⌀16.0 0.63
⌀50 2.0 FMC ⌀22.0 .087
⌀63 2.5 FMC ⌀22.0 .087
JQTE ⌀20 0.8 ※ ⌀20 0.8” Gripping diameter sleeve ※ Shank diameter ⌀20 0.8” ※
⌀25 1.0 ※ ⌀25 1.0” Gripping diameter sleeve ※ Shank diameter ⌀25 1.0” ※
⌀32 1.3” ※ ⌀32 1.3” Gripping diameter sleeve ※ Shank diameter ⌀32 1.3” ※
⌀40 1.6 ※ ⌀32 1.3” Gripping diameter sleeve ※ Shank diameter ⌀32 1.3” ※
※Shank-type body
Calculation
※Assuming that normal cast iron is machined at a cutting speed of Vc= 800m/min 2600 SFM
JFDX series
JFDX ⌀63 2.50” – 6 teeth
  Feed rate per tooth (mm/t) Feed rate per tooth (IPT)
0.1 .004 0.2 .008 0.3 .012 0.4 .016
Depth of
cut (mm) (inch) 		1 .04 4679
2 .08 7111417
3 .12 11162226
4 .16 14222935
JFDX ⌀80 3.0” – 8 teeth
  Feed rate per tooth (mm/t) Feed rate per tooth (IPT)
0.1 .004 0.2 .008 0.3 .012 0.4 .016
Depth of
cut (mm) (inch) 		1 .04 691214
2 .08 12182429
3 .12 18273543
4 .16 23364757
JFDX ⌀100 4.0” -10 teeth
  Feed rate per tooth (mm/t) Feed rate per tooth (IPT)
0.1 .004 0.2 .008 0.3 .012 0.4 .016
Depth of
cut (mm) (inch) 		1 .04 9131821
2 .08 17273542
3 .12 26405364
4 .16 35547085
JFDX ⌀125 5.0” – 12 teeth
  Feed rate per tooth (mm/t) Feed rate per tooth (IPT)
0.1 .004 0.2 .008 0.3 .012 0.4 .016
Depth of
cut (mm) (inch) 		1 .04 12192530
2 .08 24374959
3 .12 36567389
4 .16 487498118
JFDX ⌀160 6.0” – 16 teeth
  Feed rate per tooth (mm/t) Feed rate per tooth (IPT)
0.1 .004 0.2 .008 0.3 .012 0.4 .016
Depth of
cut (mm) (inch) 		1 .04 21324250
2 .08 416383100
3 .12 6295125151
4 .16 82127166201
JSDW series
JSDW ⌀63 2.50” – 4 teeth
  Feed rate per tooth (mm/t) Feed rate per tooth (IPT)
0.1 .004 0.2 .008 0.3 .012 0.4 .016
Depth of
cut (mm) (inch) 		1 .04 3467
2 .08 691214
3 .12 9131822
4 .16 12182429
JSDW ⌀80 3.0 – 6 teeth
  Feed rate per tooth (mm/t) Feed rate per tooth (IPT)
0.1 .004 0.2 .008 0.3 .012 0.4 .016
Depth of
cut (mm) (inch) 		1 .04 581113
2 .08 11162226
3 .12 16243339
4 .16 21324352
JSDW ⌀100 4.0” – 7 teeth
  Feed rate per tooth (mm/t) Feed rate per tooth (IPT)
0.1 .004 0.2 .008 0.3 .012 0.4 .016
Depth of
cut (mm) (inch) 		1 .04 7101417
2 .08 14202733
3 .12 20314150
4 .16 27415566
JSDW ⌀125 5.0” – 8 teeth
  Feed rate per tooth (mm/t) Feed rate per tooth (IPT)
0.1 .004 0.2 .008 0.3 .012 0.4 .016
Depth of
cut (mm) (inch) 		1 .04 8131720
2 .08 17253441
3 .12 25385161
4 .16 33506882
JSDW ⌀160 6.0” – 10 teeth
  Feed rate per tooth (mm/t) Feed rate per tooth (IPT)
0.1 .004 0.2 .008 0.3 .012 0.4 .016
Depth of
cut (mm) (inch) 		1 .04 12182429
2 .08 24364959
3 .12 36547388
4 .16 487297117
JXTM series
JXTM ⌀80 3.0 – 10 teeth
  Feed rate per tooth (mm/t) Feed rate per tooth (IPT)
0.1 .004 0.2 .008 0.3 .012 0.4 .016
Depth of
cut (mm) (inch) 		5 .20 36557693
6 .24 436691111
7 .28 5076106130
8 .31 97149208254
JXTM ⌀100 4.0” – 13 teeth
  Feed rate per tooth (mm/t) Feed rate per tooth (IPT)
0.1 .004 0.2 .008 0.3 .012 0.4 .016
Depth of
cut (mm) (inch) 		5 .20 6193130159
6 .24 73112156190
7 .28 85131182222
8 .31 97149208254
JXTM ⌀125 5.0” – 16 teeth
  Feed rate per tooth (mm/t) Feed rate per tooth (IPT)
0.1 .004 0.2 .008 0.3 .012 0.4 .016
Depth of
cut (mm) (inch) 		5 .20 93143198242
6 .24 111171238291
7 .28 130200277339
8 .31 148228317387

Unit: kW

*Please make use of the above tables, understanding that they are approximations only to use as a guide.

Tips for utilizing the above tables
  • The assumption is that gray cast iron is machined at a cutting speed of 800m/min 2600 SFM , with the cutter diameter shown as the width of cut (ae= 100% of the cutter diameter).
  • The required power becomes approximately half (50%) if the cutting width ae or depth of cut is halved. (The power is proportional to ae or ap.)
  • The required power is reduced to approximately 60% if the number of inserts is halved.
  • Machines that have an output of 22kw or greater are recommended.
Milling Application
Material :
Gray cast iron(FC270)
Cutting speed :
800 m/min 2600(SFM) (SX6)
140 m/min 460(SFM) (Competitor’s carbide)
Feed :
0.06 mm/t .002(IPT) (SX6)
0.20 mm/t .008(IPT) (Competitor’s carbide)
Feed :
1,400 mm/min 55(IPM) (SX6)
560 mm/min 22(IPM) (Competitor’s carbide)
DOC :
1.5 mm .060 inch
Coolant :
DRY
SX6
360 pcs / corner
Competitor’s carbide inserts
260 pcs / corner
High-speed milling with ceramic significantly reduced cycle time compared to the current carbide inserts. (Single pass process went from 40 min. down to 15min.)
SX6 achieved 1.4 times more tool life.

Tooling costs are reduced by utilizing negative inserts, increasing the number of corners.
Transmission Case Cover
Material :
Gray cast iron(FC250)
Holder :
JFDX100-88-10R
Insert :
SX6
SNGN120412T02020 SNG433T0820
Cutting speed :
600 m/min 2000(SFM) (SX6)
120 m/min 400(SFM) (Competitor’s carbide)
Revolution :
1910 min−1 (SX6)
382 min−1 (Competitor’s carbide)
Feed :
0.05 mm/t .002(IPT) (SX6)
0.10mm/t .004(IPT) (Competitor’s carbide)
DOC :
3 mm .12 inch
Coolant :
DRY
SX6
1.3 min
Competitor’s carbide inserts
5.4 min
Compared to current carbide inserts, high-speed machining with HCC holder has achieved a significant reduction in cycle time.
Transmission case
Material :
FC230
Holder :
JWNXM125A3810R12
Insert :
SX6
WNX44-R12T01020 WNX44-R12T0420
Cutting speed :
500 m/min 1600 (SFM) (SX6)
500 m/min 1600 (SFM) (Competitor’s carbide)
Feed :
0.13 mm/t .005 (IPT) (SX6)
0.13 mm/t .005 (IPT) (Competitor’s carbide)
DOC :
1 mm .040 inch
Coolant :
DRY
SX6
120 pcs / corner
Competitor’s carbide inserts
60 pcs / corner

As for competitor’s milling cutter, we needed to change inserts to new ones due to the wear progress and lower clamping force of work material after machining 60 pcs.
This was caused by increasing sutting force.

NTK NEW Milling cutter “FU-HA MILL” achieved 2 times longer competitor’s.
Low cutting force avoided the problem occurred by competitor’s milling cutter.

View more JFDX reports
View more JXTM reports
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