Wholesale Doosan DH300 Excavator Bucket Pin 90×290MM

The Doosan DH300 excavator bucket pin 90×290MM is a solid cylindrical wear component designed specifically as a pivotal connection shaft between the excavator arm, linkage, and bucket attachment. Engineered in a heavy-duty cylindrical shaft format with precision-machined grease channels and securing pin holes, it ensures smooth rotational articulation under high shearing stress.

• Exact Technical Dimensions: Standardized 90MM diameter by 290MM length format with a precision ground surface tolerance of ±0.01mm for perfect fitment.
• High-Strength Alloy Steel: Forged from premium 40Cr/42CrMo structural steel, providing high tensile strength and high resistance to structural shearing.
• Deep Induction Hardening: Heat-treated to achieve an outer surface hardness of 55-60 HRC with an effective hardened case depth of 3-5mm.
• Extended Wear Life: Reduces clearance play and friction with bucket bushings, extending operational service intervals by up to 35%.
• Precision Internal Lubrication Channels: Integrated oil grooves deliver consistent grease distribution across joint contact areas, reducing friction on every heavy-duty bucket pin for excavator assemblies.
• 100% Direct OEM Matching: Model-matched engineering guarantees exact dimensional replacement for hassle-free field installation without needing equipment modification.

By matching precise OEM structural dimensions with rigorous thermal processing, this bucket pin for excavator applications eliminates improper fitting issues on job sites. Equipment operators can quickly replace worn pivot shafts to restore original excavation precision and prevent uneven wear on adjacent bushings.

Product Description

• Raw Material: 40CR
• MOQ: 1 PC
• Payment Method: T/T
• Brand: GFM
• Condition: New
• Color: Yellow, Black or Customized
• Lead Time: 30 days
• Warranty: 1 Year
• Service: OEM or ODM
• Place of Origin: Fujian, China
• Application: Excavator
• Packing: Standard Export Wooden Pallet

Features

• Unrivaled Strength: Forged from premium materials to handle the heaviest workloads.
• Precision Fit: Engineered for a snug and secure connection that reduces wear and tear.
• Extreme Durability: Advanced heat treatment ensures a longer lifespan in demanding conditions.
• Corrosion Resistance: Special coatings protect against rust and environmental damage.
• Effortless Replacement: Designed for quick swaps to keep your operations running smoothly.

Invest in GFM bucket pins and experience peak performance and cost savings over the long haul.

Measuring Dimensions

There are three key pieces of information we will need:

• Pin Diameter;
• Distance between pin centres;
• Ear to Ear distance (width).

STEP 1
Pick up a tape measure (2nd preference) and /or Vernier calliper (1st preference).
STEP 2
Go to an existing bucket or attachment that fits nicely onto the dipper arm or quick hitch of the excavator.
STEP 3
Take measurements A, B, C, D, E as accurately as possible
NOTE: In most cases A = B, and C = D but in some cases they may be different and it’s best to double check.
TIP: Pin diameter measurements are generally in 5mm increments, e.g.it is common for pins to be 25mm, 30mm, 35mm etc. This is not always the case though, so please contact us if you are unsure.

Specifications

Product Models

Production Process

Packaging and Shipping

Factory Advantages

Since 2011, GFM has operated as an experienced manufacturer specializing in high-performance replacement spare parts for heavy excavators and earthmoving machinery. Our advanced production facility features automated forging equipment, multi-axis CNC machining, and specialized induction heat treatment lines engineered for reliable high-volume output.

• 15+ Years Factory Experience: Established expertise supplying reliable replacement components to global B2B distributors and equipment owners since 2011.
• Perfect Multi-Brand Compatibility: Precision-engineered model compatibility fully matching major brands including Komatsu, Caterpillar, Hitachi, Volvo, Kobelco, Daewoo, Doosan, Sany, and LiuGong.
• Rigorous Quality Control: Comprehensive testing protocols covering magnetic particle flaw detection, metallurgical spectrum analysis, and ultrasonic hardness inspection across every batch of excavator pin products.
• Reliable Warranty Coverage: Every manufactured excavator pin is backed by a full warranty of 1 year or 2,000 operational hours under standard working conditions.
• Scalable Mass Production: Advanced multi-axis machining facilities maintain massive monthly production output to support fast bulk order fulfillment for global wholesalers.
• Free Sample Inspection: Complimentary sample pins provided to verified B2B importers and distributors for quality validation prior to wholesale contracts.

Our streamlined production lines ensure rapid order fulfillment for bulk wholesale shipments and emergency spare part replenishment. GFM remains committed to delivering durable, model-matched heavy equipment parts that strictly meet international industry standards.

Looking for reliable excavator pin replacements with perfect model compatibility? Contact our sales team today to request a quote or claim your free product sample!