Import Excavator Three Segment Boom — Buy in Bulk from Supplier in China

The Excavator three segment boom from Guiyang Sunpoc Machinery & Equipment Co., Ltd. is a replacement component designed for medium to heavy-duty excavators, constructed from ASTM A572 Grade 50 steel with a wall thickness of 12 mm to 18 mm depending on model. It features forged pin holes with a tolerance of ±0.5 mm and includes grease fittings at all pivot points for maintenance. The boom is compatible with common OEM models such as Caterpillar 320, Komatsu PC200, and Hitachi ZX200, with a standard length range of 3.8 to 4.5 meters.

The three-segment design allows for greater reach and articulation compared to two-piece booms, while maintaining structural rigidity through internal ribbing and stress-relieved weld zones. The material composition meets ISO 6306 standards for hydraulic excavator booms, and surface treatment includes shot blasting followed by a two-coat epoxy primer for corrosion resistance. Typical industry variants include standard, extended, and reinforced configurations, with weight ranging from 850 kg to 1,200 kg depending on size and reinforcement level.

This boom is primarily purchased by construction contractors, mining equipment operators, and demolition firms in Southeast Asia and Latin America who require durable replacements for worn or damaged original equipment. Trade terms are typically FOB Qingdao or CIF destination port, with minimum order quantities starting at one unit. Packaging includes wooden crate reinforcement and moisture barrier wrapping. Buyers should verify compatibility with their excavator’s hydraulic system and mounting brackets before purchase.

Guiyang Sunpoc Machinery & Equipment Co., Ltd. is a registered manufacturer based in Guiyang, Guizhou Province, China, with a physical address on the 10th floor of the Liyang Building. The company is listed as an imported supplier with harbor trust tier verification, indicating shipment history through Chinese export ports. No public information confirms production capacity, years in operation, or employee count. The listing shows no response rate or average response time, suggesting limited buyer communication activity.

The company specializes in excavator components, primarily booms and arms, and appears to source or manufacture parts for export markets. There is no mention of in-house testing facilities, certifications, or OEM partnerships. The absence of response metrics and detailed profile data suggests this supplier operates with minimal online engagement. Buyers should request product drawings and material test reports directly before placing orders.