Doosan Dx225/Dx300/Dx340 Excavator Long Reach Boom and Arm with CE Certificate

All steel plates are 45° beveled by a beveling machine before welding.

Main welding is performed by robotic machine, producing a welding seam that is very solid, durable and even.

Consistent weld quality across the full boom and arm structure ensures long service life under demanding working conditions.

To achieve higher machining accuracy, we operate a 30 m boring machine used to process larger diameter pin holes after welding. It meets micrometer-level accuracy demands and ensures both pin centers stay in one line.

Metal pipes are welded by robotic welding, which effectively prevents oil leakage compared with manual welding.

Hydraulic cylinders are customized from the S-ANY factory to match long reach boom requirements.

Material: 40Cr. All pins are hardened to above 55 HRC, tempered to enhance toughness and ground to improve precision, greatly increasing the service life of the long boom.

All high pressure hoses use the American EATON brand for reliable performance.

You need to provide photos or videos of the failure to prove that the defect arises from our material or workmanship rather than improper operation. If proven to be a defect arising from our material or workmanship, we will direct you on how to remedy the failure and you may charge us for those remedy expenses. Please note that you must follow our directions to carry out the remedy under such circumstances; otherwise we will not take any responsibility.

You also need to provide photos or videos to prove that the defect arises from our material or workmanship rather than improper operation. If proven to be a defect arising from our material or workmanship, we will send you replacement parts free of charge.