Reinforced Box Section Long Arm 15 Meter Attachment For PC200 ZX200 SY215 Excavators

This fifteen metre long arm is designed as a straight replacement for the standard front end on the twenty tonne machines that dominate rental fleets in Asia and Africa, so the workshop does not have to modify the turret, the boom foot bore or the bucket linkage. The mounting dimensions match the PC200, ZX200 and SY215 families, and the pin diameters are held to the original tolerances.

The profile is a reinforced box with eight internal diaphragms instead of the four used in a budget arm. That detail doubles the local stiffness at the boom foot and at the cylinder lugs, which is exactly where an undersized long arm starts to crack after a season of trench work.

• Eight internal diaphragms: internal ribs are placed at every load transfer point along the box, which raises torsional stiffness and removes the oil canning that causes fatigue cracks on cheap long arms.
• Direct bolt-on fitment: boom foot bore, cylinder lug spacing and linkage geometry are matched to PC200, ZX200 and SY215 machines so no turret modification is needed.
• 90 mm hardened pins: induction hardened 45 steel pins with greased bronze bushings and double lip seals are supplied as a complete set for the boom foot, the boom to arm joint and the linkage.
• Replaceable cylinder lugs: the boom and arm cylinder lugs are separate welded castings rather than integral plate, so a damaged lug is replaced in the field instead of scrapping the section.
• Balanced reach and capacity: fifteen metres is the longest arm that keeps a twenty tonne carrier stable with a 0.5 cubic metre bucket and a standard counterweight, so no ballast is required.

Trenching for utility corridors, foundation excavation for low rise buildings, pond and ditch cleaning, road side drainage works and general rental fleet duty are the main uses. The fifteen metre reach lets a twenty tonne machine dig a two metre deep trench and stockpile spoil far enough back that the wall does not collapse, which is the single most common reason rental customers ask for a long arm.

The set reuses the original boom and arm cylinders wherever the rod length allows, and where the original cylinder is too short we supply a matched replacement with the correct stroke and a re-set relief valve. The buyer receives a fitting sheet with torque values for every pin retainer and the recommended hose routing to avoid chafing at the boom foot.

One complete set is stacked on a steel skid with timber separators between the boom and the arm, wrapped in film and steel banded. The pin set, bushings and seals travel in a wooden case bolted to the skid, and each skid carries a weatherproof label with the machine compatibility and the set weight.

Every section is dimensionally checked against the OEM drawing, the weld seams are visually and dye penetrant inspected, and the assembled set is trial fitted on a reference turret before dispatch. A twelve month warranty covers the structure, and bushings, seals and pins are kept in stock for same week dispatch.

We can supply the set with a hydraulic quick coupler adapter, with an extra 0.2 cubic metre bucket, or with a ripper tooth for compacted ground. Paint colour and decals follow the customer specification.