china D20 Double Flange Bulldozer Track Rollers Assembly With Heat Treatment

Static Load: 18 tons (matches Komatsu D20’s undercarriage requirements)

Dynamic Load: 12 tons (continuous operation)

Salt Spray Test: Passed 1,000 hours (ASTM B117) with no visible rust

Coating Adhesion: Cross-cut test (ISO 2409) rating 5B

ISO 9001:2015 certified production

100% dimensional inspection (tolerances: ±0.03 mm for critical surfaces)