Kobelco LV64D01001F1 SK850 Track Undercarriage Upper Roller Assy / Heavy duty Crawler Excavator Chassis Components Manufacturing expert / CQCTRACK Supplies Directly

CQC TRACK is a leading heavy-duty construction undercarriage parts manufacturer based in Quanzhou, China, specializing in high-performance crawler undercarriage components for excavators, track-type tractors, and drilling equipment operating in the world’s most challenging environments. With a strong focus on superior quality—including forged alloy steel construction with induction-hardened wear surfaces achieving 55–60 HRC for maximum abrasion resistance under extreme mining and quarry conditions—CQC TRACK delivers durable, cost-effective solutions engineered to meet or exceed OEM specifications. Serving as both a source factory and a manufacturing partner, CQC TRACK is widely recognized globally for its ISO 9001:2015-certified quality control, OEM/ODM customization capabilities, and extended service life innovations that consistently deliver exceptional field performance across all major equipment brands, including Caterpillar, Komatsu, Hitachi, Hyundai, Volvo, and Kobelco.

For inquiries, partnership opportunities, or to place an order, please contact:

• Factory / Supply Chain Partnership (Sales & Support): CQC TRACK – JACK / Sales Department – Phone: Available upon request (refer to official website for direct contact). For dealer and distributor opportunities, including volume pricing, private label packaging, and exclusive territory agreements, please contact via cqctrack.com official channels.
• International Sourcing / Author: Jack – Senior Undercarriage Specialist, International Affairs Department – Specializing in OEM-quality Kobelco undercarriage component sourcing, supplier verification, and global procurement coordination for mining and construction equipment.

Kobelco LV64D01001F1 SK850 Track Undercarriage Upper Roller Assy / Heavy Duty Crawler Excavator Chassis Components Manufacturing Expert / CQC TRACK Supplies Directly

1. Product Overview: Kobelco LV64D01001F1 Track Upper Roller (Carrier Roller) Assembly for SK850 Excavator

The Kobelco LV64D01001F1 Track Upper Roller Assembly (alternatively designated as carrier roller, top roller, or upper track roller; cross-reference designations include C1680100M00 and VC168000 depending on regional cataloging standards) is a precision-engineered guidance and support component specifically designed for Kobelco’s flagship heavy-duty excavator, the SK850 series. The SK850LC stands as Kobelco’s largest production-class excavator, featuring a base operating weight of 80,800 kg (approximately 80.8–85 metric tonnes, varying by configuration, arm length, and regional specifications). Powered by a 12.9-liter turbocharged and intercooled Hino engine (alternatively cataloged with Komatsu SAA6D140E-5 engine in certain configurations, delivering 370–382 kW/1,800 minˉ¹), the SK850 is engineered for the most demanding heavy-duty applications worldwide, including large-scale infrastructure development, quarry operations (aggregates and rock handling), small-to-medium mining operations, mass excavation, overburden removal, demolition heavy earthmoving, and bulk loading.

The track upper roller—also termed the carrier roller or top roller—plays an often underappreciated yet mission-critical role within the crawler undercarriage system. Unlike track lower rollers (bottom rollers) that bear the tremendous full weight of the machine (approximately 80–85 tonnes) and directly contact the ground surface, the upper roller is mounted on the upper section of the track frame immediately above the track chain’s return run. Its primary function is guidance and alignment: the upper roller (carrier roller) supports the returning (upper) track loop as it travels back from the front idler to the drive sprocket (sprocket wheel at rear). The component ensures stable maintenance of the upper part of the track in the correct position, counteracting excessive sagging of the upper track strand, reducing friction on the track chain bushings, preventing the track from slipping off the sprocket teeth during dynamic load conditions, and evenly distributing load along the entire track length to extend the lifespan of all undercarriage components. While the lower rollers manage ground contact and weight distribution, the upper (carrier) roller serves a specialized guidance function that is absolutely essential to undercarriage longevity. By keeping the track properly aligned, the upper roller accelerates with the track for smooth operation, and its efficient function is crucial for the machine’s overall operational efficiency. On the SK850, the track frame integrates two upper rollers (carrier rollers) in addition to the lower roller detailing, with a sprung idler wheel keeping tracks properly tensioned to allow rotation while preventing looseness.

The part number LV64D01001F1 follows Kobelco’s proprietary cataloging system for undercarriage components. Notably, adjacent product references indicate that certain Kobelco SK850 undercarriage architecture is shared, matching or interchangeable with HITACHI ZX-series class machines in the 80–95 tonne weight segment. CQC TRACK, as a professional heavy-duty crawler excavator chassis components source manufacturer, has extensively validated compatibility for the Kobelco SK850 excavator. The LV64D01001F1 upper roller assembly forms part of a comprehensive undercarriage component portfolio maintained by CQC TRACK, including track lower rollers (bottom rollers), track chains, track shoes, sprockets, idlers, and complementary chassis components.

2. Functional Role in the Undercarriage System

Within the comprehensive Kobelco crawler excavator undercarriage architecture, the upper roller (carrier roller) performs several distinct functions that differentiate it from other undercarriage elements:

Track Guidance and Alignment: The upper roller serves to guide the returning (upper) strand of the track chain as it travels from the front idler back to the rear drive sprocket. By maintaining the correct track position along the return run, the upper roller prevents lateral track misalignment that could cause the track to ride off the sprocket teeth or contact the track frame structure.

Sag Prevention: The upper roller supports the weight of the upper track loop itself to prevent the chain from sagging excessively across the track frame. When the upper track is properly supported, it reduces friction between the track chain and the undercarriage frame, minimizes wear on the track bushings, and eliminates the risk of the track catching on frame components during machine travel or swing operations.

Load Distribution: While the upper roller does not bear the machine’s full operating weight (a distinction from heavy-duty lower rollers), it contributes to balanced load distribution along the track assembly’s full length. By evenly distributing contact forces across the track chain and bushings, the upper roller helps limit premature wear and extends the lifespan of all components—including the sprocket drive interface, idler bearings, and track chain links.

Wear Reduction and Component Protection: The upper roller reduces overall undercarriage friction by acting as a low-resistance rolling interface between the track chain and the track frame. With high-quality bearings and effective debris-excluding seals, the roller minimizes wear on the track chain and bushings, preventing excessive wear on the sprocket and idler interfaces while protecting the undercarriage from premature failure due to misalignment stress.

The upper roller (carrier roller) generally consists of the following internal and external components: a forged steel wheel body with precision-ground tread surface, a hardened alloy steel shaft (axle) that attaches the roller to the machine’s track frame, copper sleeves or precision bearings for smooth rotation, end covers to retain lubrication, floating oil seals or dual-lipped contamination seals, and a grease-packed lubrication retention system. During operation, the roller should rotate freely as the track moves, requiring proper lubrication and effective sealing to exclude contaminants. The floating oil seal design—commonly referred to as double-cone sealing and lubrication for life—makes the track roller have a long lifetime and perfect performance under any working condition, including mud, sand, water, and airborne rock dust.

3. Technical Specifications: Engineered for Extreme Mining and Quarry Duty Cycles

The Kobelco LV64D01001F1 track upper roller assembly is precision-engineered to withstand high-cycle contact stress, abrasive wear from silica and mineral dust, and contamination ingress common in heavy mining, quarry, and construction applications. Based on CQC TRACK’s engineering specifications for SK850-series excavator chassis components, the upper roller assembly aligns with the following technical parameters, consistent with heavy-duty undercarriage manufacturing standards for 80–95 tonne class excavators:

 

Parameter	Specification / Value Range
OEM Part Number	LV64D01001F1
Cross-Reference Numbers	C1680100M00, VC168000, UH118B0B
Applications	Kobelco SK850 (all variants), compatible with HITACHI ZX850/ZX870/ZX890/ZX900
Weight Class	80–95 ton heavy-duty excavator (Kobelco SK850LC: 80,800–85,000 kg)
Material Grade	High-strength forged alloy steel
Surface Hardness	55–60 HRC (induction-hardened wear surface)
Core Hardness	28–38 HRC (quenched and tempered for core toughness)
Case Depth	6–10 mm at tread contact surface
Sealing System	Dual-lipped heavy-duty contamination seals with floating oil seal (double-cone sealing)
Bearing Configuration	Precision-ground, hardened steel bushings with copper-alloy sleeves
Lubrication System	Integrated grease-packed lubrication retention, pre-lubricated at assembly
Seal Material	High-grade rubber toric seals with metal floating rings
Anti-Corrosion Treatment	Zinc-plated or black oxide finish with anti-rust oil coating
HS Code (International Trade)	84314990000 (classified under excavator undercarriage parts)

The base material is high-strength forged alloy steel, selected for exceptional toughness, fatigue resistance, and ability to withstand compound dynamic loads experienced during continuous operation in abrasive environments. The induction-hardening process creates a uniform case depth profile of 6–10 mm at the tread contact surface, providing a surface hardness of 55–60 HRC while maintaining a tough, impact-resistant core of 28–38 HRC for shock absorption. The closed-die warm forging technologies with optimized grain flow ensure that the grain structure of the steel follows the contour of the roller, maximizing strength precisely where the component experiences the highest contact stresses during operation.

Critical to the upper roller’s long-term reliability is the sealing system. The double-cone sealing design (floating oil seal architecture) protects the internal bearing surfaces from the ingress of abrasive particles—particularly critical in quarry mining and overburden removal environments, where fine rock dust and mineral particles are highly abrasive and rapidly accelerate wear on moving components. The seals are pre-lubricated at assembly, with an integrated lubrication system that minimizes friction and ensures smooth operation, contributing to reduced overall undercarriage friction on the top of the track. Once the roller is installed, it is filled with grease (lubricant), which requires the part to be oriented correctly (upward) on the track frame to ensure proper lubrication distribution and retention. The sealing system functions effectively in extreme ambient temperatures, ranging from −40°C (cold climate mining in Siberia, Northern Canada, and high-altitude Chinese operations) to +50°C (desert mining in the Middle East, Australia, and African operations).

4. Manufacturing Capabilities: Source Factory Excellence and Vertical Integration

As a vertically integrated source factory, CQC TRACK maintains comprehensive in-house manufacturing capabilities spanning the entire production chain—from raw material sourcing and closed-die warm forging to precision CNC machining, induction hardening, and final assembly. This vertical integration ensures consistent quality, tight dimensional control, and the ability to respond quickly to fluctuating market demands for high-volume Kobelco-compatible upper roller assemblies, track lower rollers, idlers, sprockets, and track chains. The manufacturing process employs advanced production technologies, including precision CNC machinery achieving dimensional tolerances of ±0.05 mm on critical mounting interfaces and bearing surfaces; induction-hardening systems with closed-loop temperature control ensuring uniform case depth distribution across the 55–60 HRC hardness range; and comprehensive in-house metallurgical testing (physical analysis and chemical composition verification) to validate material integrity at every production stage.

Product quality is strictly controlled and includes raw material source verification, semi-finished inspection, assembly functional testing, and final packaging. CQC TRACK achieves monthly production capacity exceeding 5,000 upper/top roller assemblies across all Kobelco-compatible models (including LV64D01001F1 for the SK850 and related part numbers). Standard lead times for confirmed orders range between 15–25 working days, with expedited production available for urgent requirements. The manufacturing facilities encompass more than 10,000 square meters of dedicated production floor space in Quanzhou, Fujian Province, staffed by experienced engineers, metallurgists, and quality control specialists. CQC TRACK primarily produces undercarriage parts for excavators exceeding 50 tons operating weight, with mature production technology, stable product quality, and market validation through years of field performance across global mining, quarry, and construction operations.

5. Certification, Quality Assurance, and Compliance

Quality is the cornerstone of CQC TRACK’s manufacturing philosophy. The company operates under ISO 9001:2015 certified quality management systems, with fully documented procedures covering every aspect of production, from supplier qualification and incoming material inspection through in-process quality checks to final product release and post-shipment documentation.

The comprehensive quality assurance framework includes: supplier qualification audits to ensure raw material integrity and full traceability; in-house physical and chemical testing of all incoming steel batches to verify composition meets Kobelco-grade and international alloy specifications (including 50Mn, 40MnB, and 42CrMo equivalent steels); first-article inspection for every new product or tooling change, with complete dimensional validation; statistical process control throughout forging, machining, and heat treatment operations; non-destructive testing (magnetic particle and ultrasonic inspection) for surface and subsurface defect detection; dimensional verification using calibrated CMM (coordinate measuring machine) equipment; hardness profiling (Rockwell HRC testing) across multiple points on the tread surface to confirm uniform case depth; and functional fit testing on standard Kobelco SK850 track frames to guarantee plug-and-play compatibility without field modification.

Environmental compliance is integrated into daily operations. CQC TRACK maintains eco-conscious production practices aligned with international environmental standards, including responsible waste management protocols for steel scrap and used coolant fluids, energy-efficient heat treatment processes that minimize carbon footprint, and RoHS compliance regarding hazardous substances in coatings and surface treatments. The company maintains third-party certifications, including CE marking for the European market, with ongoing expansion of region-specific compliance credentials—including Australian standards, Russian EAC certification, and other regional requirements as mandated by global customers in mining and construction sectors.

6. Customization Capabilities: OEM and ODM Solutions for Kobelco Undercarriage Components

Beyond standard OEM-compatible replacements for the Kobelco LV64D01001F1 upper roller assembly, CQC TRACK offers comprehensive OEM (Original Equipment Manufacturer) and ODM (Original Design Manufacturer) customization services for global distributors, equipment brands, and large fleet operators operating Kobelco SK850 and compatible HITACHI ZX-series excavators.

Drawings and Specifications: Customers can submit product drawings, reference samples, or detailed technical specifications for custom manufacturing. The engineering team at CQC TRACK collaborates closely with clients to reverse-engineer existing components or develop entirely new designs based on application-specific requirements, including specialized wear zones for particular soil conditions, mining environments, or geographic market demands. CQC TRACK welcomes customer drawings for custom manufacturing and maintains the technical capability to produce components that match or exceed original equipment specifications.

Material Customization: Alternative alloy grades are available upon request, including enhanced wear-resistant formulations with surface hardness up to 62 HRC for extreme mining applications (iron ore, hard rock, and taconite) as well as cost-optimized materials for specific market segments with lighter duty cycles. Material selection can be tailored based on specific site conditions.

Heat Treatment Customization: Surface hardness, case depth, and core hardness specifications can be adjusted to match unique wear patterns resulting from specific operating conditions. Induction-hardening patterns can be tailored for particular roller contact zones, maximizing wear life in applications where abrasive wear is concentrated on specific areas of the upper roller tread. Through-hardening options are also available for special applications requiring enhanced impact resistance.

Branding and Packaging: Upper roller assemblies and packaging can be customized with customer branding, part numbers, barcode labeling, and multi-language product documentation. Private label manufacturing is fully available for distributors seeking to market under their own brand names across different geographic regions. Packaging can be tailored for retail distribution (individual branded boxes) or bulk supply (industrial pallet packaging).

Low MOQ Acceptance: Minimum order quantities are flexible, with sample and small-lot orders accepted for initial quality validation. Trial orders of 10–50 pieces are welcomed to allow new customers comprehensive understanding of product quality, fit, and field performance before full-scale fleet deployment. The company maintains a customer-first philosophy, recognizing that new partnerships often begin with validation orders before progressing to high-volume supply agreements.

Technical Documentation: CQC TRACK provides detailed product specifications, dimensional drawings with GD&T (Geometric Dimensioning and Tolerancing), heat treatment certificates, material test reports (certifying chemical composition and mechanical properties), magnetic particle inspection records, and comprehensive quality assurance documentation with every shipment—enabling full traceability and compliance with international procurement standards.

7. Application Platform: Kobelco SK850 Excavator—Flagship 80–85 Tonne Heavy-Duty Machine

The Kobelco LV64D01001F1 upper roller assembly is specifically engineered for the Kobelco SK850 series, Kobelco’s largest production-class excavator and a dominant player in the 80–85 tonne heavy excavator segment. Understanding the host machine provides essential context for the carrier roller’s design and operational requirements:

Engine and Power System: The SK850LC is driven by a 12.9-liter turbocharged and intercooled Hino engine delivering 380 kW of power (or equivalently 370–382 kW / 1,800 minˉ¹ depending on ISO standards used). The engine platform provides the hydraulic system output required to power large-scale excavation and material handling.

Operating Weight and Dimensions: The SK850LC operates with an operating weight ranging from 80,500 kg to 85,000 kg depending on configuration (standard arm vs. long arm) and regional specifications. Transport dimensions are approximately 14.53 m in length, 3.40 m in width, and 3.77 m in height.

Bucket and Digging Capacity: Bucket capacity ranges from 2.3 m³ to 5.4 m³, with mass excavation configurations supporting 4.3–5.1 m³ buckets. Bucket digging force (ISO 6015) is 403 kN, with arm crowding force of 311 kN.

Hydraulic System: The SK850LC utilizes two variable displacement pumps plus one gear pump, delivering maximum discharge flow of 2 × 504 L/min and 1 × 30 L/min. Relief valve setting is 33.0 MPa (boom, arm, and bucket). Travel motors are two axial-piston motors (two-step motors), with travel shoes numbering 51 on each side.

Travel Performance: Travel speed is 4.2 km/h (high range) and 2.7 km/h (low range), with drawbar pulling force of 637 kN (SAE) and gradeability of 70% (35°).

End-Use Applications: The SK850LC is extensively deployed in quarry applications for aggregates and rock handling, small-to-medium mining operations, large-scale civil infrastructure projects, heavy earthmoving, mass excavation, bulk loading, and demolition. The extreme conditions of these applications impose severe demands on all undercarriage components, including the LV64D01001F1 upper roller, which must maintain precise track alignment and smooth rotation despite continuous exposure to abrasive quarry dust, rock debris, and high-impact shock loads.

8. Global Supply Network: Serving Mining, Quarry, and Construction Markets Worldwide

The global excavator undercarriage parts market reached USD 7.05 billion in 2025 and is projected to grow to USD 12.24 billion by 2032, representing a compound annual growth rate of 8.18%. The heavy equipment undercarriage components segment continues to expand as infrastructure development and mining exploration accelerate across emerging and established economies. Against this backdrop, CQC TRACK has established a comprehensive global supply network that delivers Kobelco LV64D01001F1 upper roller assemblies and compatible undercarriage components to customers across six continents, with fast shipping to key markets through reliable logistics partners.

The following sections detail CQC TRACK’s strategic engagement across the world’s most important mining, quarry, and construction machinery markets, with particular focus on regions where Kobelco SK850 excavators are extensively deployed:

Australia and Oceania

Australia represents the most demanding heavy equipment market in the Asia-Pacific region, particularly for Kobelco equipment. The SK850LC has shown it will be well-suited to a variety of work sites across Australia, in particular quarry applications, small-to-medium mining operations, and large-scale civil infrastructure projects. The Australian mining sector—focused on iron ore in Western Australia’s Pilbara region, coal in New South Wales and Queensland, gold in Western Australia, and various mineral operations—requires undercarriage components with exceptional wear resistance to handle highly abrasive geological conditions. CQC TRACK supplies Kobelco LV64D01001F1 upper roller assemblies and complementary undercarriage components to the Australian market through mining parts trade companies, quarry equipment suppliers, and direct partnerships with dealerships and large fleet operators.

South Africa and Sub-Saharan Africa

South Africa stands as a cornerstone market for Kobelco heavy excavator undercarriage components. The country’s deep-level gold, platinum, diamond, and coal mines—particularly in the platinum belt around Rustenburg and the coal mining regions of Mpumalanga—present highly abrasive geological conditions that accelerate wear on all undercarriage components. SK850LC excavators are increasingly deployed across South African quarry and mining operations for overburden removal, rock excavation, and large-scale earthmoving. The broader Sub-Saharan Africa region—including Botswana (diamond mining), Namibia (uranium mining), Zambia (copper), Zimbabwe (platinum and gold), Angola (diamonds and iron ore), and the Democratic Republic of Congo (cobalt and copper)—presents growing opportunities for undercarriage component suppliers. CQC TRACK supplies Kobelco LV64D01001F1 upper roller assemblies through established mining parts trade companies and regional distributors serving these markets.

North America: United States and Canada

North America’s heavy equipment market remains a significant region for Kobelco excavators. The Kobelco SK850LC-10 model is marketed in the United States with 510 hp (380 kW) engine power, an operating weight of 185,700 lbs (84,800 kg), and drawbar pulling force of 146,800 lbf (653 kN). Kobelco has cultivated a robust North American dealer network, including Powerscreen of Washington in the Pacific Northwest, ensuring strong market presence and equipment utilization. The United States mining sector spans coal, copper, gold, iron ore, and industrial minerals across multiple states, with major infrastructure and quarry operations requiring heavy undercarriage component supply. Canada’s mining industry—dominated by oil sands extraction in Alberta, potash in Saskatchewan, and gold/uranium/base metals across multiple provinces—matches the extreme cold conditions that demand low-temperature material performance in undercarriage components. CQC TRACK supplies through established dealer networks and distributor partnerships across North America.

Brazil and South America

Brazil stands as the largest construction and mining equipment market in South America and a key region for Kobelco excavator deployment. The country’s mining sector is dominated by iron ore production in Minas Gerais and Pará (Vale’s Carajás mine and the Iron Quadrangle region), alongside significant bauxite, gold, and nickel extraction operations requiring 80-tonne class excavators such as the SK850 for overburden removal and material handling. The broader South American market—including Chile (world’s largest copper producer with mines in the Atacama Desert), Peru (copper, gold, and zinc in the Andes), Argentina (lithium extraction and construction projects), Colombia (coal and infrastructure development), and Bolivia (tin and silver)—presents substantial opportunities for undercarriage component suppliers. CQC TRACK supplies Kobelco LV64D01001F1 upper roller assemblies through established mining parts trade companies and regional distributors across the continent.

Russia, CIS States, and Eastern Europe

The Russian Federation and Commonwealth of Independent States (CIS) region host demanding mining and construction environments where SK850-class excavators are deployed. Russia’s mineral extraction spans frozen tundra in Siberia, coal basins in Kuzbass, iron ore deposits in the Kursk Magnetic Anomaly, and gold/diamond mining in Yakutia. Extreme cold temperatures—frequently below −40°C—demand upper roller components manufactured with low-temperature toughness properties. Eastern European markets, including Poland (coal mining in Silesia), Romania, Bulgaria, the Baltic states (Estonia, Latvia, Lithuania), and Hungary/Slovakia (where Kobelco maintains partnerships with exclusive dealers such as Kobex-Pannonia Kft), represent growing demand for certified undercarriage components.

Europe and European Union

The European market generates high demand for certified, ISO-compliant excavator undercarriage components, with stringent emissions regulations (Stage V compliance) and equipment safety standards across EU member states. Key regional markets include Germany (Europe’s largest construction equipment market), France (SK850LC-10E models operating in quarry and mass excavation applications), the United Kingdom (construction and demolition sectors), and Scandinavia (Norway, Sweden, Finland). Kobelco Construction Machinery Europe B.V. maintains regional product specifications for the SK850LC mass excavator configuration Operating weight of 80,500–81,700 kg, 370 kW engine rating, and 4.3–5.1 m³ bucket capacity.

Middle East (West Asia) and Central Asia

West Asia (Middle East) and Central Asia regions are defined by large-scale infrastructure projects, oil and gas construction, desert mining, and mineral extraction. Key markets include GCC countries: Saudi Arabia (mining development in the Arabian Shield region), United Arab Emirates (large infrastructure), Qatar, Kuwait, Oman, and Bahrain. The challenging desert environment—fine silica sand ingress, extreme temperatures exceeding 50°C, and high abrasion conditions—demands upper roller components with superior sealing systems and exceptional wear resistance. In Central Asia, Kazakhstan’s mining sector (copper, uranium, iron ore extraction in Karaganda and East Kazakhstan provinces) drives demand for Kobelco undercarriage components.

South Korea and Northeast Asia

South Korea’s sophisticated construction equipment industry is driven by ongoing urban development, infrastructure renewal, and a world-class industrial base that both manufactures and utilizes heavy excavators. Kobelco maintains strong brand recognition across Korea and Northeast Asia, with SK850-class excavators deployed on major construction projects and civil engineering works. CQC TRACK supplies Kobelco LV64D01001F1 upper roller assemblies to Korean parts traders, aftermarket distributors, and equipment dealers serving both the Korean domestic market and international export channels. Additionally, Japan—Kobelco’s home market—maintains significant demand for compliant high-quality undercarriage components.

China (Domestic Market)

As CQC TRACK’s home market, China represents one of the world’s largest and most competitive construction equipment markets. Kobelco maintains an established China presence through Kobelco Construction Machinery (China) Co., Ltd., with the SK850LC-10 model listed for the Chinese domestic market with an operating weight of 83,000 kg, bucket capacity of 4.8–7 m³, and rated power of 370 kW. The Chinese mining and infrastructure sectors present continuous demand for high-quality undercarriage replacement components, and CQC TRACK supplies the domestic market alongside international export channels.

Southeast Asia

Southeast Asian markets show accelerating demand for Kobelco heavy excavators and related undercarriage components. Indonesia—where SK850LC-8 Geospec units have been handed over to the mining sector, recognized for reliability especially in mining applications—represents a key market for CQC TRACK. Additional countries include Malaysia (palm oil plantation equipment and construction), Thailand (large infrastructure projects), Vietnam (infrastructure development and bauxite mining), and the Philippines (nickel mining and infrastructure). The region’s tropical climate, characterized by high humidity and significant rainfall exposure, demands undercarriage components with superior corrosion protection and robust sealing systems.

9. Kobelco SK850: Mining and Quarry Center of Excellence

The Kobelco SK850 excavator, for which the LV64D01001F1 upper roller assembly is specifically engineered, has established a reputation as a quarry and mining center of excellence globally. The SK850LC-10 features a 12.9L turbocharged and intercooled 380 kW engine delivering impressive power to tackle heavy-duty applications. The machine is designed to deliver a competitive edge whether the job requires heavy earthmoving, aggregates handling, or demolition—operating efficiently in quarrying, highway construction, utility construction, mass excavation, or bulk loading.

As Kobelco’s largest production-class excavator, the SK850LC takes durability to the next level with a base operating weight of 80,800 kg and built to withstand the rigors of the toughest jobsites around the world. The machine has been deployed in heavy-duty applications including sandstone and rock handling in Brazilian mine sites, as documented in operational case studies linking the SK850LC to Volvo EC380D equivalents. The extreme operating conditions of these applications—particularly in quarry and mining environments—place severe demands on all undercarriage components, making the quality and durability of the LV64D01001F1 upper roller assembly critical for machine uptime and total cost of ownership.

10. International Affairs: Supplier Verification and Global Sourcing for Kobelco Undercarriage Components

The international procurement landscape for heavy-duty Kobelco undercarriage parts requires meticulous supplier verification to ensure component quality, dimensional accuracy, and compliance with import/export regulations. The global supply chain for Kobelco undercarriage systems is heavily concentrated in specialized manufacturing clusters across China, where regions offer a unique combination of metallurgical expertise, cost-effective production, and export readiness—making them ideal partners for mining and construction businesses worldwide. The International Affairs Department at CQC TRACK is responsible for supplier qualification audits, cross-border logistics coordination, trade compliance advisory, and market intelligence gathering across all regions served.

For distributors, mining companies, quarry operators, equipment dealers, and maintenance repair organizations (MROs) seeking to source the Kobelco LV64D01001F1 upper roller assembly or any Kobelco undercarriage components—including track lower rollers, track chains, track shoes, sprockets, front idlers, final drive components, hydraulic systems, and engine parts—CQC TRACK provides comprehensive sourcing solutions that include part number cross-referencing (LV64D01001F1 primary, cross-reference numbers C1680100M00, VC168000, and UH118B0B), application verification across Kobelco SK850 model ranges and compatible HITACHI ZX850/ZX870/ZX890/ZX900 class machines, quality documentation packages in multiple languages, and logistics management from factory to destination.

Key part compatibility considerations include: the LV64D01001F1 upper roller is systematically verified for Kobelco SK850 applications (all series, including SK850LC, SK850LC-10, SK850LC-10E, SK850LC Super Acera, and SK850LC-8 Geospec variants). The upper roller assembly is not interchangeable with PY64D01008F1 top rollers (designated for Kobelco SK70 series and mini excavators), which are smaller rollers at the top of the undercarriage preventing track sagging but rated for significantly lower weight class applications. For SK850 applications, the upper roller part number LV64D01001F1 is the correct specification compliant with Tier 3 and newer Tier 4 emission config models.

11. Contact and Partnership Information

For inquiries, partnership opportunities, or to place an order for Kobelco LV64D01001F1 SK850 Track Upper Roller Assemblies or any Kobelco-compatible undercarriage components, please contact:

• Factory / Supply Chain Partnership (Sales & Support): CQC TRACK – Ms. Judy / Sales Department – Phone: Available upon request (refer to official website for direct contact). For dealer and distributor opportunities, including volume pricing, private label packaging, and exclusive territory agreements, please contact via cqctrack.com official channels.
• International Sourcing / Author: Jack – Senior Undercarriage Specialist, International Affairs Department – Specializing in OEM-quality Kobelco undercarriage component sourcing, supplier verification, global procurement coordination for mining and construction equipment, and technical consultation for large-scale fleet component replacement programs across all customer applications and geographic regions.

Connect With Us

Websites: www.cqctrack.com

Email: Sales@cqctrack.com (general inquiries and quotations) | Jack@cqctrack.com (international sourcing, technical specifications, and partnership development)

Factory Location: Quanzhou City, Fujian Province, China – the renowned “home of overseas Chinese” and the historic starting point of China’s Maritime Silk Road, with convenient transportation access to major international shipping ports serving all global markets. The company maintains close proximity to Xiamen Port, one of China’s busiest container ports, enabling efficient logistics for international customers shipping to Australia, South Africa, Brazil, Russia, Europe, North America, and throughout Asia.

Copyright © CQC TRACK (Heli Machinery Parts Co., Ltd.). All rights reserved. ISO 9001:2015 Certified. Your trusted partner in global Kobelco undercarriage solutions.