ISO-backed manufacturer · Xuzhou, China
Duo-cone DO/DF seals, XY profiles, seal rings and mechanical face seals—dimension checks, sample matching and export packing for mines, construction fleets and gearbox rebuilders worldwide.
Each line uses controlled alloy casting, CNC machining and precision lapping so sealing faces stay stable in mud, dust and shock-load duty. Tell us your hub drawing or OEM reference—we confirm dimensions before production.
Use the sections below to compare geometry and typical applications. Every series supports export documentation and repeat-order traceability.
Symmetric duo-cone geometry for high contamination exclusion on excavators, bulldozers and tracked loaders. Strong choice when housing volume allows a balanced metal ring pair and robust mud rejection at the lip.
Type DF mechanical face seal: diamond-profile elastomer loader instead of a circular O-ring. Specified when axial housing depth is limited or the bore pocket is square — not because the external duty is lighter than DO.
Matched X-ring + Y-ring seal group in FC15Cr3Mo alloy — complementary halves, not two identical rings. Heavy-load, higher-speed duty on crawlers, conveyors, shearers and industrial reducers (e.g. Caterpillar 6V2733 class).
Component and assembly supply: loose alloy seal rings, matched pairs (including X/Y halves), or complete mechanical face seal kits — two lapped metal rings plus two toric elastomer loaders per group.
Same sealing physics—different contamination and shock profiles. Match product families above to these duty descriptions or send your machine model for a recommendation.
Excavators, bulldozers and track systems in muddy, dusty and high-impact jobsites. DF and DO profiles dominate where roller and final-drive hubs see constant grit ingress.
Loaders, conveyors and cutting systems exposed to abrasive dust, slurry and overload cycles. Metal face pairs sized for shock and sustained contamination loading.
Tractors and harvesters working through mud and moisture for entire seasons. Compact DF housings often fit narrow axle stubs while DO covers heavy articulated frames.
High-pressure slurry and cutter-head drives where any leakage accelerates wear on main bearings. XY geometries frequently pair with large-section cutter transmissions.
Tracked platforms and suspension components exposed to ballistic vibration and harsh terrain. Seal pairs specified for shock tolerance and extended maintenance windows.
Industrial gearboxes and wind-power drivetrains under continuous rotation and thermal cycling. Mechanical face seal assemblies sized for bearing proximity and lubricant film stability.
Quick answers for procurement and maintenance teams—contact us for document-backed replies.
Ideally an OEM part number, seal assembly drawing or hub cross-section with groove dimensions. Photos of the installed seal, operating fluid type and peak temperature accelerate feasibility checks.
Yes—HuaTong ships floating seals globally with export packing and commercial invoices suited to freight forwarders. Share incoterms preference when requesting pricing.
In many cases yes. Send the competitor number or a physical sample; our engineering desk verifies metal ring geometry, elastomer groove and interference targets before confirming fit.
During business hours (Asia time) we typically acknowledge RFQs within one working day. Complex reverse-engineering jobs may require dimensional measurement at our facility—timeline communicated upfront.
Share drawings or OEM numbers—we’ll confirm series (DO / DF / XY / rings), material stack and delivery schedule for your market.