Sumitomo Excavator Undercarriage Spare Parts SH200 Heat Treatment
Heavy Duty Top Roller Upper Roller Carrier Roller
1. What is Carrier Roller?
Carrier roller is a critical component of undercarriages, responsible for
supporting both the conveyor belt and the weight of transported
materials—its quality directly impacts the service life of
excavators and bulldozers. For belt conveyors, the roller is equally indispensable: available in diverse types and large
quantities, it also bears the load of the conveyor belt and
materials, while accounting for 35% of a belt conveyor’s total cost and generating over 70% of the system’s operational resistance—making its quality particularly vital. Belt conveyor rollers
primarily come in two material options: steel and plastic.
Carrier rollers (used in heavy machinery undercarriages), material selection is
tailored to working conditions, with common choices including 40Mn2, 40MnB, and 50Mn. These rollers undergo a rigorous manufacturing process: first precision forging followed by normalization, then overall heat treatment—this sequence achieves a surface hardness of HRC52-60 and a hardened layer depth of over 7-10mm (HRC45), ensuring exceptional durability, high impact resistance, and
strong surface wear resistance on their contact surfaces.
Equipped with high-quality floating seals and a reliable lubricating system, track and carrier rollers adapt
seamlessly to diverse climates and temperatures. They operate
stably under severe working conditions or extreme temperatures
ranging from -45℃ to 120℃, while keeping the components maintenance-free—further enhancing their reliability for heavy-duty applications
like mining and construction.
Crafted from high-strength alloy steel via advanced hot-forging, carrier rollers offer top-tier durability. Built to withstand extreme loads and
impacts, they excel in construction/mining—performing reliably even
on rocky terrain or compacted soil.
Rigorously precision-designed for flawless track alignment, these
rollers cut friction/wear, extending undercarriage life by 40% vs.
traditional models. This means fewer replacements, lower
maintenance costs, and higher on-site productivity.
Designed with hassle-free upkeep in mind: sealed lubrication
(reduces dirt intrusion) and tool-free disassembly cut maintenance
time by 30%. Less wear also means longer service intervals,
minimizing downtime.
✅ OEM-Grade Quality You Can Trust: Our carrier rollers don’t just meet Hitachi’s original equipment
specifications—they often exceed them. This ensures seamless
compatibility with your Hitachi machinery and guarantees optimal,
factory-matching performance, eliminating risks of mismatches or
operational disruptions.
✅ Up to 30% in Cost Savings: By cutting out middlemen and distributor markups, we pass direct
savings to you—delivering up to 30% lower costs compared to
traditional supply channels. This cost-effective solution lets you
maintain full control over project budgets, ensuring your financial
resources are used most efficiently without compromising on
quality.
✅ Swift Global Delivery to Minimize Downtime: Downtime costs you money—we won’t let delays hold you back. We
offer fast, reliable global shipping, with guaranteed dispatch within 25 days for all orders, getting your carrier rollers to your site quickly,
no matter where you are in the world.
✅ Comprehensive Support for Total Peace of Mind: Our team of experts provides 24/7 round-the-clock technical assistance to resolve any issues promptly. Plus, every carrier roller comes
with a 12-month manufacturer’s warranty, so you can operate with confidence, knowing your investment is
protected.
4. Main Dimensions of Installation
5. Detecting Equipments
6. Hot Sale Products
All manufacturers' names, symbols, and descriptions are utilized
solely for reference purposes, and it is not to be inferred that
any listed part is necessarily the product of these specific
manufacturers.
7. Our Advantages
World-class quality
Factory sale directly with reasonable price
Flexible payment terms including T/T,L/C and so on
Fast delivery within 30 days after contract established
After-sale services: video technical support, 24h online support
Are you still plagued by the absence of a top-quality excavator
idler? Look no further than YinTai Parts, a leading manufacturer
and supplier of excavator idlers in China. We boast an array of
high-quality products available for purchase. With over three
decades of experience and extensive expertise in the field, we
guarantee the superior quality and exceptional performance of our
products, ensuring your satisfaction.
