EC210 EC290 Long Reach Boom 18m Excavator Digger Extension Arm Q355B

A long reach arm is the working front end of an excavator and it sets the reach of the bucket. On a Vol-vo EC210 or EC290, this 18 m front end extends the digging envelope by about 10 m, so a 20 to 29 ton machine can clean channels, desilt ponds and shape slopes without moving onto the water line.

With a longer front end every part works harder, so boom, arm, cylinder strokes and linkage are designed as one matched set rather than adapted.

• Purpose Designed: boom, arm, cylinders and linkage are calculated together for the 18 m reach, keeping stability inside the machine envelope.
• Q355B and Q460C Plate: certified steel in a tapered box section gives bending strength without overloading the swing motor.
• Controlled Welding: seams are welded by qualified operators, stress relieved and inspected before painting.
• Ready to Fit: three cylinders, hoses, pins and bushings arrive with the arm, cutting installation to a single shift.
• Serial Number Check: pin diameter, boom foot width and hose routing are confirmed from the Vol-vo parts book for each machine.

Contractors use it for channel cleaning, pond desilting, slope repair and basement digging where access is tight and reach saves a second machine.

We have produced excavator attachments since 2009, and booms from this workshop run in over 60 countries. Engineering starts from the machine serial: pin size, mounting width and cylinder stroke are checked against the OEM parts book before cutting. Welding follows ISO 3834 practice, each unit is proof loaded and measured, and the file includes mill certificates, dimensional report, CE and ISO 9001 papers and inspection video.

Units travel on steel pallets, film wrapped and cased in plywood or blocked in a container. Lead time is 15 to 25 days from drawing approval, with a 12 month warranty on structure and welds.