Nan'an Zhongte Engineering Machinery Factory
                                                                                                           
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35MnB Material Roll Forged Mini Excavator Front Idler OEM Replacement for Sumitomo and Case Models Part Number No KAA11760

Price Negotiable
Price: US$73-95
MOQ: 1PCS
Delivery Time: 7-15Days
Brand: ZTMC
Product Description
Sumitomo 75 / 80 & Case 75 Mini Excavator Front Idler
This high-performance front idler serves as a direct OEM replacement for Sumitomo 75, Sumitomo 80, and Case 75 mini excavators in demanding mining and heavy-duty applications.
Manufactured from premium 35MnB alloy steel using advanced roll forging technology, this idler delivers superior performance with denser internal structure, enhanced tensile strength, and exceptional wear resistance compared to conventional casting or basic forging methods. The combination of material and manufacturing process ensures outstanding impact resistance and deformation stability, making it ideal for challenging conditions including rock, gravel, and uneven terrain in mining operations.
Precision machined to exact OEM specifications, this front idler installs directly without modification, providing reliable track guidance and consistent undercarriage performance.
Technical Specifications
Applicable Models Sumitomo 75, Sumitomo 80, Case 75 Mini Excavators
Material 35MnB Alloy Steel
Manufacturing Process Roll Forging, Precision Machining, Quenching & Tempering
Surface Hardness HRC 53-57
Hardened Layer Depth 8-12 mm
Tensile Strength 600-800 MPa
Replacement Type OEM Direct Replacement
Quality Inspection 100% Pre-delivery Dimensional & Hardness Test
Frequently Asked Questions
Is this front idler compatible with Sumitomo 75/80 and Case 75?
Yes, it is dimensionally matched to OEM standards and can directly replace original parts.
What is the advantage of roll forged 35MnB?
Roll forging improves structure density and fatigue resistance; 35MnB ensures high hardness and wear performance, extending service life in mining applications.
Is it fully inspected before shipment?
Each unit undergoes dimensional inspection, hardness testing and appearance check to ensure reliability.
Can it be used in mining conditions?
Yes, it is specially designed for mining, quarry, earthmoving and other heavy-duty small excavator scenarios.
Packaging & Transportation
  • Packaging: Export-standard wooden pallet, moisture-proof, shock-proof and anti-collision
  • Transportation: Suitable for sea, land and air transportation to global destinations
  • Loading & Unloading: Pallet design is compatible with standard handling equipment for convenient operation
Sumitomo and Case mini excavator front idler - detailed view showing construction and mounting points Front idler installation demonstration on mini excavator undercarriage system

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Nan'an Zhongte Engineering Machinery Factory
Location No. 105, Shangdian Street, Changfu Village, Xiamei Town, Nan'an City, Quanzhou City, Fujian Province
Contact Person Mr.

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