SANY SY980H Track Sprocket Wheel Assembly (SSY006966321 / 119A0547): CQCTRACK- The OEM-Caliber Undercarriage Specialist for SANY 100-Ton Class Heavy- Duty Mining Excavators

On a SANY SY980H, a 100-ton class heavy-duty crawler excavator deployed in large-scale mining and quarrying, the track sprocket wheel assembly is the decisive final drive interface that translates immense hydraulic torque into tractive motion. This sprocket must transmit thousands of Newton-meters of rotational force through its teeth into the track chain, all while operating in a bath of abrasive rock fines, mud, and dynamic shock loads. A single compromised tooth root can trigger accelerated bushing wear, pitch extension, and eventually a complete track system failure that parks a production-critical asset. CQCTRACK, a manufacturer that specializes in manufacturing parts for mining equipment, supplies this mission-critical assembly under SANY part numbers SSY006966321 and 119A0547 with a level of engineering and metallurgical integrity that matches or exceeds genuine OEM specifications. We are not an aftermarket copy shop; we are a direct factory source where SANY undercarriage components are produced on the same advanced manufacturing lines that supply world-leading excavator brands.

OEM & ODM Manufacturing Lineage: The Production Base for Hitachi, Kobelco, LiuGong, XCMG, and SDLG

CQCTRACK occupies a unique position in the global heavy equipment supply chain. We are a fully integrated direct manufacturer and a proven OEM and ODM partner for industry leaders including Hitachi, Kobelco, LiuGong, XCMG, and SDLG. Every SANY SY980H track sprocket wheel assembly bearing our name is produced within an ecosystem governed by the exact same quality management systems that govern line-fit undercarriage production for these major brands. Our factory operates advanced closed-die forging presses, multi-axis CNC turning and milling centers, robotic hard-facing and welding stations, and computer-controlled induction hardening lines. The material certifications, dimensional inspection protocols, and heat treatment cycle records for part numbers SSY006966321 and 119A0547 are generated and archived using the identical processes that an OEM auditor would review at a Tier-One supplier. This manufacturing pedigree means that you receive OEM-caliber sprocket performance without the layered cost structure of machine-branded distribution channels.

Product Engineering Breakdown: The SSY006966321 / 119A0547 Drive Sprocket Wheel Assembly

The drive sprocket for the SANY SY980H must withstand extreme bending fatigue at the tooth roots, severe abrasive wear on the tooth flanks, and micro-pitting resistance across the entire drive engagement zone. CQCTRACK engineers and manufactures this assembly to a specification that addresses every one of these failure modes.

Integrally Forged Alloy Steel Sprocket Wheel Body: The sprocket wheel is not cast, nor is it fabricated from plate. It is integrally forged from a single, vacuum-refined high-grade alloy round steel billet. The closed-die forging operation realigns the material’s grain structure to flow continuously around each tooth profile and into the hub, eliminating the random grain orientation and potential porosity inherent in cast sprockets. This produces a sprocket body with dramatically superior fatigue endurance at the tooth root—the precise location where cyclic bending stress concentrates during every crawler drive cycle.

Spheroidal Graphite Iron Side Cover: The lateral retaining cover is manufactured via a rigorously controlled spheroidal graphite (ductile) iron casting process, often referred to in production as ball-mill casting. This material selection provides high tensile strength combined with sufficient elongation to absorb assembly preload and in-service structural deflection without cracking, ensuring the sprocket wheel remains rigidly clamped to the final drive hub over thousands of operating hours.

Dual-Seal Groove Shaft and Premium Floating Seal System: The central shaft is precision-ground with a dual-labyrinth seal groove configuration, deliberately designed to create a tortuous ingress path that dramatically resists water, slurry, and fine abrasive particle intrusion. Into these grooves we install a matched pair of top-tier floating seals, consisting of lapped high-chromium cast alloy wear faces energized by chemically stable elastomer torics. The internal cavity is packed with a specially formulated anti-freeze extreme-pressure grease, designed to maintain its channeling stability, film strength, and pumpability across an extreme temperature range, ensuring the shaft-to-bushing interface is continuously lubricated and never exposed to dry-start galling.

Complete Heat Treatment Architecture: The forged sprocket wheel body first undergoes a full through-quench-and-temper (Q &T) cycle. This process transforms the entire cross-section into a uniform, fine-grained martensitic structure that serves as a tough, crack-resistant core. Following Q&T, the blank is rough-machined to allow internal stress relaxation, and then precision finish-machined to achieve exact bolt-circle registration, tooth involute geometry, and hub bearing fit. As the final wear-defense step, a computer-controlled medium-frequency induction hardening process is applied specifically to the tooth flanks, the root fillets, and the chain-contact tread zone. The result is a clean, tightly controlled surface hardness of 55 to 62 HRC with a deep, gradual case-to-core transition. This engineered hardness envelope ensures exceptional resistance to abrasive wear and contact fatigue spalling, while the ductile core prevents brittle fracture, even under the severe shock loading conditions of rock ripping and heavy bench loading.

Twenty Years of Continuous Manufacturing Evolution, Validated in the World’s Most Severe Mining Environments

The SSY006966321/119A0547 sprocket assembly you receive today is the matured output of twenty years of iterative production refinement. Our induction coil geometries, quench polymer concentrations, tempering curves, and post-heat-treatment surface conditioning processes have been progressively advanced through metallurgical teardown analysis of sprockets retired from severe mine service. CQCTRACK drive sprocket assemblies have accumulated millions of excavator hours across the planet’s most unforgiving operations: the high-abrasion copper and gold pits of Peru and Ecuador, the deep-level hard-rock mines of South Africa, the frozen overburden removal in Russia and Kazakhstan, the high-utilization earthmoving in South Korea and North America, and the tropical infrastructure and mining projects across Vietnam, the South Pacific island nations, and India’s premium-quality equipment sector. This globally diverse field validation confirms a quality stability and wear rate predictability that enables fleet managers to forecast undercarriage cost-per-hour with genuine accuracy.

Complete Matched Undercarriage System Supply

A sprocket is one element within a coordinated tribological system. To enable a holistic approach to crawler management, CQCTRACK manufactures the entire range of mating undercarriage components for the SANY SY980H, including sealed and lubricated track chains, heavy-wall track bottom rollers, top carrier rollers, front idler assemblies with tensioning yokes, and bolt-on sprocket rim segments. All components are designed with a deliberate hardness cascade: the sprocket tooth surface, track bushing case depth, and roller tread hardness are stepped to wear at compatible rates, eliminating the condition where a single mismatched part prematurely degrades the entire track frame.

Global Export Footprint and High-End Market Penetration

From our centralized manufacturing and logistics hub, CQCTRACK exports these SANY SY980H sprocket wheel assemblies and complete undercarriage kits to a firmly established global network. Our consistent destination markets include South America (Ecuador, Peru), South Africa, Russia, South Korea, the premium-quality aftermarket segment in India, the South Pacific nations, Vietnam, Kazakhstan and the Central Asian republics, North America, and Turkey. Our sustained and growing presence in markets with stringent import quality enforcement—most notably North America and South Korea—is a permanent, real-world audit of the manufacturing compliance and material traceability behind every assembly we ship.

Your CQCTRACK International Business Team

Every technical enquiry, cross-reference request, and export logistics plan is handled directly by our dedicated international team members: Philip, Jack, and Haily. With extensive field knowledge of regional operating conditions and equipment configurations, they ensure precise communication, accurate documentation, and reliable delivery scheduling.
(Author’s note: This comprehensive technical product profile has been personally researched, verified, and authored by Jack, drawing on direct engineering liaison and extensive global field support experience.)

For the SANY SY980H, do not compromise with a sprocket that merely looks like the genuine part. Install the track sprocket wheel assembly manufactured by CQCTRACK—the OEM & ODM specialist where mining equipment undercarriage components are built to the same uncompromising standards that serve Hitachi, XCMG, and the world’s most demanding heavy-duty excavator fleets.