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Ampliación de la vida útil de la excavadora: consejos para cucharones y dientes

Introducción

Las excavadoras son máquinas esenciales en obras de construcción, minas y otros proyectos que implican movimiento de tierras. El cucharón y los dientes de una excavadora sufren un desgaste constante durante las operaciones de excavación y carga. Reemplazar estas piezas de excavadora con frecuencia puede resultar costoso y llevar mucho tiempo.

Implementing good practices to extend the life of buckets, teeth, and other excavator components should be a priority for equipment owners and operators. This article will provide tips on how to prolong the lifespan of these important excavator parts.

Inspect and Maintain Buckets

Excavator Part
Extending Excavator Part Life: Tips for Buckets and Teeth 7

The bucket takes the brunt of the workload on an excavator. Inspecting it regularly and performing proper maintenance is key to extending its usable life.

  • Inspect for cracks or holes – Catch problems early before they require major repairs. Pay special attention to high stress areas like the spill guard, side cutters, and bottom wear plates.
  • Ensure fasteners are tight – Loose pins, bolts, and retainer bars lead to unnecessary wear and part replacement. Tighten them to specified torque values.
  • Apply wear-resistant coatings – After replacing worn bottom and side wear plates on the bucket, have wear-resistant material welded or sprayed on. This protects the base steel underneath.
  • Use the right bucket for the material – Matching bucket type to the application reduces fatigue failures. Excavator buckets come in different designs – ditching, trenching, grading, rock, heavy duty, etc.

Tooth Systems and Maintenance

Teeth on the front edge of an excavator bucket bear the impact from digging hard materials like dirt, clay, or rock. Proper tooth selection, inspection, and upkeep lead to longer life.

Tooth Styles

  • Conical – General purpose earthmoving and medium impact applications
  • Penetrating – High breakout force for dense material
  • Abrasion resistant – For high wear applications like sand, gravel, and recycled concrete
  • Heavy duty – Reinforced for extreme impact and wear resistance

Tooth Tips

  • Inspect and rotate daily – Spread wear evenly and catch problems early
  • Replace when worn to 50% – Don’t wait until they are completely worn
  • Use proper insertion hardware – Wrong size bolts lead to cracking and looseness
  • Consider regional demolition teeth – More cost effective for extreme applications

Table 1. Standard Tooth Hardware Sizes

Tooth TypeBolt Diameter
Conical1″- 1 1/4″
Penetrating1 1/4″ – 1 1/2″
Heavy Duty1 1/2″ – 2″

Protect the Stick and Arm

25probab(2) 1
Extending Excavator Part Life: Tips for Buckets and Teeth 8

The boom arms and sticks on excavators also suffer from constant stress. Follow these practices to avoid fatigue failures.

  • Avoid overloading – Stay within equipment weight ratings to prevent overstressing structures
  • Lubricate and inspect joints – Ensure full range of motion and catch wear early
  • Use correct procedures – Improper digging techniques lead to undue structural strain
  • Consider guards – Special abrasion resistant guards for sticks and arms prolong life
PartTarget Life
Bucket8,000 – 10,000 hours
Teeth200 – 300 hours
Stick15,000 – 20,000 hours
Auge15,000 – 20,000 hours

Conclusion:Excavator Part

Following comprehensive inspection and maintenance programs for excavator buckets, teeth, booms, sticks, and other components is essential to minimize replacement costs and downtime. While wear is inevitable in earthmoving applications, implementing these best practices will extend the usable life of these excavator parts considerably. Talk to equipment specialists about options like custom wear solutions tailored to your particular needs.

Preguntas más frecuentes

What are the first signs that bucket teeth need to be replaced?

Look for cracks, chunks missing from the working end, or wear exceeding 50% of the tooth height. If the excavator is vibrating excessively during digging, teeth likely need replacement.

What is the recommended procedure to change excavador teeth?

Always replace teeth in pairs on both sides of the bucket for even wear. Use proper bolt sizes and tighten bolts to the correct torque. Lastly, perform a test dig to ensure proper penetration and breakout force before resuming work.

Should I select excavator parts based on OEM brand or will aftermarket parts suffice?

For buckets and major components like booms and sticks, stick with OEM parts to ensure proper structural integrity and compatibility with the excavator. For wear parts like teeth, qualified aftermarket alternatives can provide good functionality at a lower upfront cost.

What type of welding rod should be used when re-building a worn excavator bucket?

An AWS E7018 electrode or equivalent is generally recommended for routine excavator bucket repairs and edge rebuilding. Make sure the welder has experience with excavator components. Proper preheating procedures must be followed depending on steel thickness.

Sobre nosotros

Shandong Qilu Industrial Co., Ltd. es un fabricante y exportador profesional que integra el desarrollo y la producción de excavadoras, cargadoras y tractores. Brindamos el mejor servicio, absolutamente.

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