Kingdon Heavy Duty Inserts are engineered for extreme roughing, high-volume material removal, and demanding intermittent cutting. Featuring robust CNHX, LNKX, and RCMX series, these inserts utilize tough substrates and impact-resistant PVD/CVD coatings to withstand high mechanical loads and thermal shock. With precise dimensions (L 10.00–19.05 mm, S 3.18–9.52 mm, Re 0.8) and secure mounting holes (Φd 3.40–6.35 mm), they deliver maximum durability and cost-efficiency in steel, stainless, and cast iron applications.
The Engineering Behind Heavy Duty Machining
- Impact & Shock Resistance: Heavy duty operations often involve varying depths of cut and interrupted passes. Our substrates are micro-grain tungsten carbide with enhanced cobalt content, specifically designed to absorb cyclic impact without chipping or fracturing.
- Secure Clamping & Stability: The precise fixing holes (e.g., Φd 4.40 mm for CNHX, Φd 3.40 mm for LNKX) ensure a rigid connection to standard cutter bodies, preventing micro-movements that cause premature edge failure under high tangential forces.
- Optimized Chip Control Under Load: Even under aggressive feed rates, the specialized geometries of the RCMX (round) and CNHX (negative rhombic) series manage chip flow efficiently, preventing bird-nesting and ensuring smooth evacuation.
- Multi-Edge Economy: The LNKX and CNHX series offer multiple usable corners per insert, significantly lowering the cost-per-edge in high-consumption roughing environments.
|
Type |
Dimensions(mm) |
|||
|
L |
W |
φd |
r |
|
|
LNMT402514K-SK |
40.00 |
25.40 |
9.20 |
1.4 |
|
LNMT502514K-SK |
50.00 |
25.40 |
9.20 |
1.4 |
|
LNMG2006K-E |
50.00 |
25.40 |
9.20 |
1.4 |
|
|
nDimensions(mm) |
|||
|
I.W. |
H |
L |
Od |
|
|
LNKX0912-V |
6.00 |
9.00 |
12.00 |
4.4 |
|
LNKX0921-V |
6.00 |
9.00 |
21.00 |
4.4 |
|
Type |
Dimensions(mm) |
|||
|
L |
W |
H |
Cutting depth |
|
|
LNGG 3108K-ER |
31 |
12 |
7.5 |
2 |
|
LNGG 3712K-ER |
37 |
17.8 |
12 |
2 |
|
LNGG 3712K-MR |
37 |
17.8 |
12 |
2 |
|
Type |
Dimensions(mm) |
|||
|
QL.C |
H |
Φd |
r |
|
|
TNMX1106K-Z |
15.875 |
6.35 |
6.35 |
1.6 |
|
TNMX1509K-Z |
22.225 |
9.52 |
7.94 |
1.6 |
|
TNMX1509K-C |
22.225 |
9.72 |
7.94 |
1.6 |
|
Type |
Dimensions(mm) |
|||
|
QL.C |
H |
Φd |
r |
|
|
TNMX1108-YP |
22 |
8 |
7 |
1.6 |
|
Type |
Dimensions(mm) |
|||
|
QL.C |
H |
Φd |
r |
|
|
RNMH 2509K-RR |
25.4 |
9.5 |
9.12 |
3 |
|
RNMH 3812K-RR |
38.1 |
12.7 |
12.8 |
4 |
Typical Applications
Heavy roughing of large cast iron engine blocks and cylinder heads.
High-depth material removal on forged steel components (e.g., crankshafts, gear blanks).
Demanding face and shoulder milling in the energy sector (turbine housings, valve bodies).
Interrupted cutting on stainless steel (304/316) and high-temp alloys.
ZZKD B2B Supply Terms
In-House Production: From powder blending to final edge preparation in Zhuzhou, ensuring batch consistency for heavy-duty grades.
Grade Recommendation: We map grades based on the machine's rigidity, material hardness, and depth of cut-not just the ISO code. Tell us your roughing parameters, and we provide the optimal substrate and coating combination.
OEM/ODM Flexibility: Laser marking, neutral/private label packaging, and mixed-series starter kits (CNHX + LNKX + RCMX) for distributor inventories.
Sample Availability: Free 5-piece sample sets for roughing validation on VMCs and boring mills.
Inquiry Format: Workpiece Material / Machine Type / Depth of Cut (ap) × Feed (f) → Receive insert code, grade, and sample plan within 2 working days.
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