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We have established long-term cooperative relations with many Mining Company.
Hitachi EX1200 Excavator Track Roller 4666752

4666752 Undercarriage Bottom RollerPurpose-built for Hitachi EX1200 120-ton mining excavatorsEngineered to withstand

Cat 374D 367-8361 Excavator Slewing Bearing For Sale

We have Caterpillar 374D slewing bearing for sale. It is a core heavy-duty component for 80-ton excavators. Adopting a

Large Slewing Bearings 397-9666 For Cat365C Excavator

The large slewing bearings of the Caterpillar 365C is the core load-bearing and transmission component​ of its upper

Caterpillar 365C 326-4403 Stick Cylinder

The Caterpillar 365C cat 326-4403 arm cylinder is the exclusive, core hydraulic actuator for the Cat® 365C excavator.

Slew Gear Bearing 227-6099 For CAT 390D Excavator

The slew gear bearing is a tailor-made core component for the Caterpillar 390D model. Manufactured from premium

BOOM CYLINDER 204-2823 For Cat365C Excavator

The 365C Cat boom cylinder adopts a dual-cylinder symmetrical layout, with a single cylinder bore of 190 mm and a

Slewing Ring Gear 227-6089 For Cat336D Excavator

The slewing ring gear is custom‑built for the 336D excavator and serves as the core component connecting the upper and

EX3600 Track Roller 1021729 For Hitachi Mining Excavator

The EX3600 track roller is a core load-bearing undercarriage component specifically designed for Hitachi EX3600 series

About STONE

Leading the construction machinery industry since 2004
STONE(Shanghai) Engineering Machinery Co.,Ltd is a maintenance base for construction machinery parts, specializing in providing maintenance services and parts for mining enterprise equipment. Our team was established in 2004 and is headquartered in Shanghai, China. It has a registered capital of 15 million yuan and has a completely independent brand STONE. We specialize in the production and supply of spare parts for Bulldozers, Excavators, and Wheel Loaders. Our detailed catalog offers a complete selection of OEM parts including Track Chain, Track Rollers, Sprocket, Excavator Buckets, Blades, Excavator Cylinders, Swing Circles and more. Also offers a wide range of electrical and hydraulic parts.
About Us
  • years

    Development history

    Factory land occupation
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    Factory Land Occupation

    Senior technical engineer
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    Senior Technical Engineer

    Utility model patent
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    Global Customers

    Global customers

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STONE Engineering Machinery technique, service and products.
STONE - manufacture process of Track Chain assembly.
STONE - The Warehouse of track chain assembly
Large aftermarket parts manufacturer for Caterpillar and Komatsu

News Center

Official certification, professional after sales service.
【STONE News Flash】 D10 Track Assemblies Shipped in Batches, Supporting Mine O...
Dec 17, 2025
D10 Track Assembly Batch Delivery Recently, a batch of Caterpillar D10 bulldozer track assemblies customized for heav...
【STONE News Flash】 Large Undercarriage Component D65 Track Assembly Successfu...
Dec 12, 2025
Large undercarriage component D65 track assembly successfully shipped! We are excited to announce another significan...
The Most Comprehensive Caterpillar Bucket Teeth – Compatible With All Caterpi...
Dec 05, 2025
The most comprehensive Caterpillar bucket teeth – compatible with all Caterpillar equipment! Precise adaptation...
Excavator Operational Maintenance Guidelines —Application Guide For High-Qual...
Nov 26, 2025
Excavator Operational Maintenance Guidelines —Application Guide for High-Quality OEM Chassis Components

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