HCC Series

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

High-efficiency milling of cast iron with NTK HCC

Home / Cast Iron - Unique Solutions / HCC Series

NTK milling cutter selection

Machining gray / Ductile cast iron

JWNXM

Low resistance × 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.

JFDX

Low cost × 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

- - - Scroll the table - - -

Series	Features	DC	KAPR	APMX
Series	Features	mm inch	°	mm inch
JWNXM series	Low resistance × 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
		⌀63 – 160 2.48 – 6.23	88°	-5.5 -.217
JFDX series	Low cost × 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
		⌀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 tool pressure Newly added Left-hand cutters	⌀80 – 125 3.15 – 4.921	88°	-8 -.315
		⌀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
		⌀20 – 80 .787 – 3.15	90°	-8 -.315
JSDW series	Low tool pressure Positive inserts reduce tool pressure and produce excellent surface finish in addition to long tool life Best for milling thin parts thanks to reduced tool pressure	⌀80 – 160 3.15 – 6.23	45°,75°	-6 -.240
		⌀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

- - - Scroll the table - - -

ISO	Work material	Coolant	Grade	v_c (m/min) (SFM)	a_p (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	v_c (m/min) (SFM)	a_p (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	SP9	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

Compatible arbor standard table

Cutter Item number		Mountable standard
Cutter Item number		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

Product video

Machine power requirements -Quick Check Table-

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	4	6	7	9
	2 .08	7	11	14	17
	3 .12	11	16	22	26
	4 .16	14	22	29	35

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	6	9	12	14
	2 .08	12	18	24	29
	3 .12	18	27	35	43
	4 .16	23	36	47	57

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	9	13	18	21
	2 .08	17	27	35	42
	3 .12	26	40	53	64
	4 .16	35	54	70	85

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	12	19	25	30
	2 .08	24	37	49	59
	3 .12	36	56	73	89
	4 .16	48	74	98	118

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	21	32	42	50
	2 .08	41	63	83	100
	3 .12	62	95	125	151
	4 .16	82	127	166	201

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	3	4	6	7
	2 .08	6	9	12	14
	3 .12	9	13	18	22
	4 .16	12	18	24	29

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	5	8	11	13
	2 .08	11	16	22	26
	3 .12	16	24	33	39
	4 .16	21	32	43	52

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	7	10	14	17
	2 .08	14	20	27	33
	3 .12	20	31	41	50
	4 .16	27	41	55	66

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	8	13	17	20
	2 .08	17	25	34	41
	3 .12	25	38	51	61
	4 .16	33	50	68	82

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	12	18	24	29
	2 .08	24	36	49	59
	3 .12	36	54	73	88
	4 .16	48	72	97	117

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	36	55	76	93
	6 .24	43	66	91	111
	7 .28	50	76	106	130
	8 .31	97	149	208	254

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	61	93	130	159
	6 .24	73	112	156	190
	7 .28	85	131	182	222
	8 .31	97	149	208	254

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	93	143	198	242
	6 .24	111	171	238	291
	7 .28	130	200	277	339
	8 .31	148	228	317	387

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.

Practical examples

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.

Engineering Cast Iron Machining with Strategic Ceramic Application

Ceramic inserts deliver measurable gains in cast iron machining by operating at cutting speeds beyond ...

July 1, 2025

Automotive, News, Press Release

NTK Cutting Tools Launches New CBN Grade Series

NTK Cutting Tools is proud to announce the launch of its new CBN grades series, ...

April 23, 2025

Article, Automotive

The Evolution of Brake Disc Machining: Meeting Challenges with NTK Ceramic Solutions

As brake disc machining evolves, NTK’s ceramic solutions deliver higher speeds, longer tool life, and ...

For more information about this product, visit our online e-catalog, or download the catalog/product report

HCC Series

NTK milling cutter selection

JWNXM

JFDX

SX6 Ceramic -Premium Silicon Nitride-

SP9 Ceramic + Coating -High Speed machining with low cutting forces-

B30 CBN

B52 CBN

Lineup

Calculation

JFDX series

JSDW series

JXTM series

Tips for utilizing the above tables

Related News

Engineering Cast Iron Machining with Strategic Ceramic Application

NTK Cutting Tools Launches New CBN Grade Series

The Evolution of Brake Disc Machining: Meeting Challenges with NTK Ceramic Solutions

About

Solutions & Products