OEM Forged Excavator Seat Ring

Product Introduction:

As a key component that ensures excavators operate flexibly, the seat ring, a critical forged part for gear-type excavators, plays an indispensable role in construction projects. Designed as a large-diameter ring bearing structure, it comprises an inner ring, an outer ring, and rolling elements (balls or rollers) installed between the two rings. It achieves rotational movement through gear meshing, with core functions including heavy load bearing, flexible slewing positioning, and reliable component connection.

Product Advantages:

Full-process inspection

Full-process processing capability

Full-range products

Production Process:

Raw material inspection → Cutting → Forging → Normalizing → Rough turning → UT → CMM/GMM → Cleaning packaging

Packaging and shipping:

Before shipment, all products undergo a strict finishing process: they are thoroughly cleaned to remove machining residues, accurately labeled with part numbers and batch information, and professionally treated with anti-rust oil or coating for long-term protection. Additionally, we conduct a comprehensive visual and dimensional inspection to verify appearance integrity, surface quality, and dimensional accuracy. Only after passing all quality checks will the goods be securely packed in export-standard cartons or wooden cases and properly stored in the warehouse awaiting delivery.

Company Strength:

The company has been certified by TÜV Rheinland for ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health and Safety Management System. Its excellent management capabilities have been fully recognized by domestic and international industry leaders, earning numerous honors including Outstanding Supplier and Best Quality Award.

FAQ:

Q1: Why choose forged seat rings over cast ones for excavators?

A: Forging aligns metal grain flow, eliminates internal porosity, and delivers higher tensile strength, fatigue resistance, and impact toughness than casting . It reduces early cracking under heavy vibration and high load, extending service life by 30–50% for excavator slewing systems.

Q2: What key materials and heat treatments ensure seat ring durability?

A: Common grades include 42CrMo, Q355, 40Cr, and high‑strength carbon steel . After hot forging, strict quenching + tempering achieves uniform hardness (HRC 52–58), improving wear resistance and structural stability to resist deformation in harsh construction sites .

Q3: How do you control quality before shipment for export seat rings?

A: We perform full inspections: UT/MT non‑destructive testing for internal cracks , CMM precision dimensional checks, hardness verification, and visual surface defect screening. All products are cleaned, anti‑rust oiled, labeled, and packed in export wooden cases, with ISO 9001 certified traceability reports provided