Mining excavator Standard boom & arm

Enstruc Standard Replacement Booms and Arms are manufactured for mining-class excavators up to 300 tonnes. They are designed for extreme digging conditions where high breakout force, structural integrity, and durability are essential. Engineered for continuous operation in abrasive rock, shot material, and demanding overburden environments, these OEM replacement boom and arm assemblies provide dependable power and stability for mining production, stripping, and heavy loading work.

Key Features

  • Deep-section boom and arm profiles deliver maximum breakout force in hard ground
  • Premium high-strength steel fabrication for sustained mining-duty performance
  • Heavy duty pins and bushings resist boom shock and torsional stress
  • Precision manufacturing and weld quality support continuous heavy cycles
  • Smooth hydraulic articulation and optimal geometry for efficient digging control
  • Custom hydraulic configuration to suit machine and attachment type
  • Designed to manage high loads, abrasive wear, and impact forces
  • Delivered mine-ready with linkage, bucket cylinder, and auxiliary pipework options

Get a Quote

Sending...
Uploading Files
Field is required
Field is required
Field is required
Field is required
Field is required
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Frequently Asked Questions

Standard Booms and Arms on Mining Excavators are primarily used with buckets for rock excavation, overburden removal, bench loading, mine development work, and heavy production digging in hard and abrasive ground.
We use high-strength steels, reinforced box structures, large-diameter pin bosses, and stress-relieved welds to handle high breakout forces and continuous impact loading in mining operations.
Enstruc Standard Replacement Booms and Arms are designed for 120-300 tonne mining-class excavators. They are compatible with Caterpillar 6015, 6020, 6030; Hitachi EX1200, EX1900, EX2000, EX2600; Komatsu PC1250, PC2000, PC3000; Liebherr R9150, R9200, R9250, R9300; and XCMG XE1250, XE1350, XE2000, XE3000; and other similar excavator models. For smaller excavators, see our Quarry Excavator Booms and Construction Excavator Booms.
Yes. Auxiliary hydraulic pipework and hoses are installed for a bucket, ripper, or hammer.
Yes. Boom and arm (stick) lengths, structural reinforcement, and wear protection can be customised to the machine and mine application.
Yes. We deliver mining excavator booms and arms worldwide and support mine operators, maintenance partners, and equipment fleets with structured supply programs and logistics assistance.

Talk to our team

Tell us your excavator model and mining application. We’ll confirm the correct standard boom and arm configuration and provide your quote.