Excavator Rear Arm Base

Product Introduction:

The rear arm base of an excavator's boom—alternatively referred to as the rear shaft seat, rear bearing seat, or rear support—is the core load-bearing component that connects the boom and the arm. It plays a pivotal role in load transmission, ensuring stable operation and enabling flexible movements. Looking ahead, as self-sensing lubrication structures and predictive maintenance technologies become more widespread, the rear support seat will further evolve toward an integrated system defined by "self-adaptation, self-repair, and extended service life." This advancement will make it a key competitive feature of high-end excavators.

Product Advantages:

The product advantages lie in structural innovation, advanced materials, easy maintenance, and adaptability to diverse scenarios. As a mechanical hub, the rear support seat is located at the bucket arm's rear end, hinged to the boom via a pin. It transmits operational loads (e.g., bucket resistance, vibration torque) to the boom and chassis, while acting as the bucket arm's rotation axis to control excavation depth and angle precision. Its core strengths include high reliability: anti-eccentric load reinforcement, central symmetric support, stiffened plates, adjustability, and anti-diversion positioning. The anti-eccentric design and precision forging prevent cracking. Intelligent features: adjustable length/angle for multi-scenario use, plus embedded sensors for predictive maintenance. Full lifecycle cost efficiency is achieved via modular wear parts and self-lubrication, cutting maintenance costs by 40%.

Production Process:

Raw Material Inspection → Cutting → Forging → Heat Treatment/Tempering → Shot Blasting → Rough Machining → Ultrasonic Testing (UT) → Final Inspection → Cleaning  Packaging

Our team will undertake the following tasks with great care:

• Thoroughly clean, label, and apply rust-proofing treatments to all products prior to shipment;

• Conduct a meticulous, multi-point inspection to ensure optimal quality;

• Professionally package the items and store them in our warehouse, keeping them in pristine condition and fully prepared for timely dispatch.

Company Strength:

Over the previous 30 years of full of life development, the corporation has aggressively prolonged into each and every and every and every and each home and world markets. Its merchandise are significantly used in fields such as setting up machinery, wind electrical electrical electrical energy generation, new electrical electricity vehicles, rail transit, petrochemicals, and mining machinery. The employer has established in-depth cooperation with world-renowned corporations in the United States, Canada, Germany, Italy, Belgium, Japan, and superb countries, with a techniques away areas capital client income accounting for large than 50%. It has in addition frequent strategic partnerships with home predominant high-end gear producers such as Zoomlion, XCMG, Sany, Lingsheng, CRRC, Nanjing Gear, and Zhuzhou Gear. Among its products, the market share of planetary reducer core forgings and medium-to-large lifting hook assemblies ranks first in the home market.