Technical Specifications: Komatsu Heavy-Duty (HD) Interchangeable Series

Komatsu Heavy-Duty (HD) Interchangeable Series — Engineered for Extreme Environments

Our Komatsu Heavy-Duty (HD) Interchangeable Series is specifically engineered to withstand high-abrasion and severe-impact operations. This premium wear-part product line features reinforced body profiles and added sacrificial wear metal mass to handle the grueling forces of mining overburden, quarry quarrying, and heavy structural demolition. Covering crawler classes from the utility PC100 up to the heavy-tonnage PC400 mining excavators, these Ground Engaging Tools (G.E.T.) deliver consistent tool penetration and extended field service intervals. Every part is manufactured to strict dimensional tolerances, ensuring a seamless, high-integrity match with original Komatsu side-pin horizontal locking configurations.

1. Core Advantages

Heavy-Duty (HD) Structural Armor: Increased cross-sectional material thickness in high-wear zones provides significantly longer service life compared to standard-duty teeth profiles, maximizing the replacement lifecycle.
Optimized for High-Shock Impact: Forged or cast from specialized high-tensile alloy steel combined with precise industrial heat treatment, protecting the tip against brittle fracturing during high-breakout rock prying.
Precision Nose Fitment: Modeled to ensure a tight, flush seat over the adapter nose piece, drastically lowering operational vibrations, friction wash, and localization stresses on the bucket lip components.
Self-Sharpening Penetration Geometry: Designed to systematically wear down while maintaining a sharp leading edge profile, preserving machine digging metrics and lowering hydraulic fuel consumption.

2. Master Technical Specifications & Reference Catalog

Machine Model Family	HD Reference Part Number	Available Gap / Pin Nose Sizes	Primary Application Environment
PC100 / PC120 Series	20Y-939-1180 (PC100-25)	25 mm	Utility Trenches, General Contractors, and Light Construction
PC200 / PC210 / PC220	205-939-7120HD	35 mm / 40 mm / 45 mm	Abrasive Earthmoving, Civil Infrastructure, and Gravel Pits
PC200 / PC210 / PC220	Gap Configuration Variants	35 mm / 40 mm / 45 mm	Abrasive Earthmoving, Civil Infrastructure, and Gravel Pits
PC300 / PC350 / LK300	207-939-3120-60	40 mm / 45 mm / 50 mm / 55 mm / 60 mm	Heavy Aggregates, Mass Excavation, and Roadway Cuts
PC300 / PC350 / LK300	207-934-5120 / LK300AHD	40 mm / 45 mm / 50 mm / 55 mm / 60 mm	Heavy Aggregates, Mass Excavation, and Roadway Cuts
PC400 / PC450 Heavy Tonnage	208-939-3120HD	50 mm / 55 mm / 60 mm / 65 mm	Extreme Open-Pit Mining, Hard Blast-Face Cleanup, and Quarrying
PC400 / PC450 Heavy Tonnage	208-934-5120 / 208-934-7120	50 mm / 55 mm / 60 mm / 65 mm

3. Key Part Number Breakdown

PC200 Fleet Series: 205-939-7120HD (Offered in selective 35mm, 40mm, and 45mm gap dimensions to match varying bucket lip base plate options).
PC300 Fleet Series: 207-939-3120-60 & 207-934-7120-55 (Heavy-duty adapter nose options configured explicitly for 55mm and 60mm structural sizing widths).
PC400 Fleet Series: 208-939-3120HD & 208-934-7120 (Extreme-duty armored profiles supporting high breakout pressures across 60mm and 65mm heavy bucket lips).
LK Wheel Loader Series: LK300AHD (Bespoke high-volume loading options scaled for 40mm, 45mm, and 50mm bucket adapter nose geometry).

4. Field Technical Advisory Note

Technical Field Guide for Maintenance Crew Supervisors:
• Horizontal Pin Alignment: Komatsu side-pin hardware configurations are subject to severe shear load spikes when working in stratified stone. Always clear trapped rock fines and corrosion scales from the internal nose recess before hammering home the lock pin to prevent improper seating.
• Pin Reusability: Do not re-install worn, elongated side pins or flattened locking washers during a change out cycle. A loose fitment allowing the tooth point to wiggle on the adapter nose will accelerate pocket wear, eventually leading to field detachment or nose breakage under peak breakout pressures.

5. Commercial Inquiry & Global Supply Channels

Supplier Identification: Xuzhou Sinoswift Import & Export Co., Ltd.
Contact Support: +86 13701956981
Email Address: [email protected]
Logistics Provision: Full Container Load (FCL), Less than Container Load (LCL) Ocean Freight shipments, and expedited global industrial parts express networks.

All original equipment manufacturer names, registered trademarks, vehicle series designations, and model part numbers are utilized strictly for field assembly compatibility cross-mapping and structural verification purposes. Maximize structural durability and maintain high penetrative breakout force. Contact our commercial service desk today to check existing factory stock and request a direct wholesale price quotation!