Diamond Arm, Hammer Arm, Tunnel Arm
The first company to make diamond arm — the Chinese solution for non-blasting rock excavation. R&D-driven, manufacturing-efficient, and globally trusted.
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The first company to make diamond arm — the Chinese solution for non-blasting rock excavation. R&D-driven, manufacturing-efficient, and globally trusted.
Chengdu Kaiyuan Zhichuang Engineering Machinery Equipment Co., Ltd. is located in Qingbaijiang Industrial Park, Chengdu, covering tens of thousands of square meters with hundreds of employees. We are a professional R&D, manufacturing, and sales enterprise specializing in excavator diamond arms.
The first company to make diamond arm — a pioneer in non-blasting rock excavation technology.
Collaborating with research institutions to turn scientific innovation into real-world productivity.
Own production line ensures stable, efficient, and high-quality product output.
All products undergo strict quality inspection before delivery.
Our products are widely used in road construction, housing construction, railway projects, mining, and frozen soil stripping. With over a decade of experience, we deliver reliable, high-performance rock excavation tools trusted by global partners.
As a leader in the industry, we continue to innovate and expand our product line to meet evolving market demands and environmental standards.
Our diamond arm technology serves diverse industries with unmatched efficiency.
Specially used for excavating cracked rocks, medium-strong wind fossils, hard clay, shale, and karst landforms. Greatly improves rock-breaking efficiency.
Ideal for foundation excavation in rocky terrain. Efficiently handles hard soils and improves project timelines.
Suitable for open-pit coal mines and ores with Platinell hardness coefficient below F=8. High efficiency, low failure rate.
Powerful excavator attachment specially designed for frozen soil stripping. Supports geological excavation and resource development.
High-performance excavator attachments engineered for durability and efficiency.
Designed for heavy-duty rock excavation. Compatible with machines from 50 to over 100 tons.
Hydraulic breaker attachment for breaking hard rock and concrete with precision.
Extended reach arm for tunneling and confined space excavation.
High-wear parts including teeth, adapters, and cutting edges for continuous operation.
Custom-fit diamond arm for Caterpillar 395 excavator. Optimized for rock ripping.
Heavy-duty rock arm for Hitachi 1200. Built for maximum durability in mining.
Precision-engineered for Komatsu tunneling excavators. High reach and control.
High-impact hydraulic hammer for XCMG 1250. Ideal for hard rock and demolition.
A diamond arm is a specialized excavator attachment used for non-blasting rock excavation. It uses high-strength teeth and powerful hydraulics to break rock efficiently.
Our arms are compatible with Caterpillar, Hitachi, Komatsu, XCMG, Doosan, Liebherr, Hyundai, and Sunward Intelligent models.
Yes, we provide OEM and ODM services. Contact us with your specifications for a tailored solution.
Typical delivery is 15–30 days after order confirmation, depending on customization and destination.
For inquiries about our products or pricing, please visit our official website to contact us directly.
Phone: +8618080839286
Email: info@kyzcrockarm.com
WhatsApp: +86 18080839286
Address: No.390, Section 1, Huajin Avenue, Qingbaijiang District, Chengdu, China
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