23B2711250 , 23B-27-11250 PIN KOMATSU

Overview

The 23B-27-11250 PIN KOMATSU is a precision-engineered component that serves as a critical load-bearing element in Komatsu heavy machinery. Acting as a pivot and structural connector, this pin ensures the stable articulation of arms, booms, and linkages within excavators, loaders, and bulldozers.

Designed for high-impact mechanical environments, the 23B2711250 PIN KOMATSU is produced using advanced forging and heat-treatment processes that guarantee durability, dimensional stability, and resistance to wear.

This component is supplied globally by 3GEN Export, a trusted OEM supplier specializing in heavy-equipment spare parts compatible with Komatsu’s construction and mining machines.

Engineering Excellence

The 23B-27-11250 PIN KOMATSU is manufactured from high-carbon alloy steel, machined with precision tolerances to ensure smooth rotation and secure fitment under extreme load conditions.

Material Composition

• Base Material: Alloy steel (SAE 4140/42CrMo4)

• Surface Finish: Ground and polished with anti-corrosion coating

• Heat Treatment: Induction-hardened surface for wear resistance

• Hardness: 55–60 HRC outer surface, 32–36 HRC core toughness

• Lubrication Feature: Precision oil holes to reduce friction

This structure enables the pin to absorb repeated stress cycles without deformation or fatigue, ensuring long-lasting operational stability for Komatsu machinery operating under severe working conditions.

Function and Performance

The 23B-27-11250 PIN KOMATSU connects major moving parts in hydraulic and mechanical systems, such as the arm and bucket linkage assemblies. Its function is to allow rotational movement while bearing heavy loads and maintaining exact alignment between connected components.

Key Performance Features

• Superior Fatigue Resistance: Withstands repetitive high-load operations.

• Precision Fitment: Maintains alignment within ±0.02 mm tolerance.

• Corrosion Protection: Nickel-phosphate coating guards against rust.

• Reduced Friction: Oil channels ensure constant lubrication flow.

• Extended Life Span: Engineered for 10,000+ operational hours.

This part plays a direct role in the machine’s performance efficiency, minimizing wear across adjacent bushings, reducing downtime, and maximizing machine uptime.

Compatibility with Komatsu Models

The 23B-27-11250 PIN KOMATSU is compatible with several Komatsu models across the excavator, bulldozer, and wheel loader series.

Common Komatsu machines using this pin include:

• Komatsu PC200 / PC210 / PC220 / PC240 / PC300 Excavators

• Komatsu D60 / D65 / D85 Dozers

• Komatsu WA250 / WA320 / WA380 Wheel Loaders

• Komatsu GD511 / GD705 Graders

• Komatsu HM300 / HM350 Dump Trucks

Each model utilizes this pin within its joint assemblies — typically at the bucket, arm, or boom pivot — ensuring a secure and precise mechanical connection.

Technical Specifications

Design and Construction

The 23B-27-11250 PIN KOMATSU is designed for strength and consistency. Every detail, from its surface finish to its oil groove alignment, is carefully engineered for efficiency.

Design Highlights

• Precision-Machined Cylindrical Geometry: Guarantees a tight fit and minimal play.

• Center Reinforcement Zone: Enhanced strength in the high-stress region.

• Chamfered Ends: Simplifies installation and removal.

• Cross-Drilled Oil Holes: Continuous lubrication to minimize metal-to-metal contact.

• Uniform Hardening Depth: Prevents cracking or micro-fractures during operation.

These design aspects make the pin not only durable but also service-friendly — easy to replace during routine maintenance.

Installation and Maintenance

Proper installation of the 23B-27-11250 PIN KOMATSU ensures mechanical precision and safety.

Installation Guidelines

• Clean the bushing and pin seat thoroughly before installation.

• Align oil holes for correct lubrication flow.

• Apply high-pressure grease before insertion.

• Use Komatsu-approved retaining bolts or circlips.

• Verify rotation and clearance post-installation.

Maintenance Recommendations

• Re-grease every 250–300 operating hours.

• Inspect for wear or scoring during scheduled maintenance.

• Replace if diameter wear exceeds 0.3 mm or surface cracking occurs.

• Avoid using contaminated grease, as this may accelerate wear.

Role in Heavy Machinery Operation

The 23B2711250 PIN KOMATSU is central to Komatsu’s linkage dynamics, ensuring consistent articulation across key motion points such as:

• Bucket-to-Arm Joints

• Arm-to-Boom Connections

• Cylinder-to-Link Mounts

Each joint relies on this pin to distribute stress uniformly, allowing the hydraulic system to operate smoothly under full load. A failure in this component could lead to misalignment, excessive vibration, or hydraulic inefficiency — highlighting its essential role in machine stability and productivity.

Testing and Quality Control

All 23B-27-11250 PIN KOMATSU units supplied by 3GEN Export undergo multi-stage quality control:

1. Dimensional Verification: Laser scanning ensures tolerance accuracy within ±0.02 mm.

2. Hardness and Case-Depth Testing: Guarantees consistent wear resistance.

3. Magnetic Particle Inspection (MPI): Detects micro-cracks or surface defects.

4. Corrosion Resistance Test: 72-hour salt spray test compliance.

5. Load-Bearing Simulation: Tested under hydraulic pressure equivalent to 15 tons.

These certifications ensure that each pin meets the reliability standards required for Komatsu equipment operating in demanding environments.

Applications in Construction and Mining

The 23B-27-11250 PIN KOMATSU is suitable for multiple applications:

• Excavation and Earthmoving: Arm and bucket joints.

• Mining and Quarrying: Cylinder pivot assemblies.

• Forestry and Material Handling: Boom connections.

• Roadwork and Grading: Articulation points in graders and compactors.

Its high strength-to-weight ratio allows it to perform consistently under fluctuating loads and impact shocks — a necessity in environments where downtime directly translates into financial loss.

Advantages of Choosing 3GEN Export

As an OEM supplier, 3GEN Export delivers more than just replacement parts — it provides a complete supply solution for Komatsu heavy-equipment operators worldwide.

Why Choose 3GEN Export

• Global Delivery in 5 Working Days – supported by optimized international logistics.

• OEM-Level Precision – parts engineered for perfect Komatsu compatibility.

• Comprehensive Warranty Coverage – one-year performance guarantee.

• Strict Quality Standards – ISO 9001:2015 certified facilities.

• Professional After-Sales Support – ensuring reliability beyond installation.

Every 23B-27-11250 PIN KOMATSU supplied by 3GEN Export undergoes professional packaging, corrosion-proof wrapping, and export inspection before shipment.

Durability and Reliability

Komatsu machinery operates in unforgiving terrains — from dusty construction sites to high-moisture mining zones. The 23B-27-11250 PIN KOMATSU meets these conditions with:

• High Wear Resistance: Maintains performance despite constant motion.

• Impact Strength: Withstands sudden load shifts and shocks.

• Thermal Stability: Operates flawlessly across extreme climates.

• Low Maintenance Design: Reduced grease consumption and easy inspection access.

These properties significantly extend the service life of connected bushings and reduce overall maintenance costs for fleet operators.

Environmental and Operational Endurance

This pin’s phosphate-treated surface and hardened steel core make it suitable for all-weather operation. It remains unaffected by corrosion, humidity, or chemical contact — essential in coastal and mining operations.

Its consistent performance in mud, sand, and extreme temperature variations ensures machinery reliability year-round.

Summary

• Part Numbers: 23B-27-11250 / 23B2711250

• Weight: ≈ 7.4 kg

• Material: Alloy Steel 42CrMo4, Hardened

• Application: Arm, Boom, and Linkage Pivots in Komatsu Machines

• Compatible Models: PC200, D65, WA320, HM300, GD511, and more

• Supplier: 3GEN Export – OEM-Grade Global Supplier

• Delivery: Worldwide in 5 Working Days

Conclusion

The 23B-27-11250 PIN KOMATSU is a robust, precision-engineered component that defines the mechanical strength and reliability of Komatsu heavy machinery. Designed for high endurance, this pin delivers stable performance, minimal wear, and reduced maintenance — ensuring that every Komatsu machine operates with precision and longevity.

Supplied by 3GEN Export, this part exemplifies OEM-grade craftsmanship, global accessibility, and reliability. From construction to mining, 3GEN Export ensures you receive durable components — anywhere in the world, within just five working days.

Manufactured in Turkey, these products are made using the latest technologies and built to meet the highest international standards. Each machine is a high-quality copy of the original, ensuring durability, precision, and performance that you can rely on for modern construction and metalworking projects.