23B2711310 , 23B-27-11310 PIN KOMATSU

Overview

The 23B-27-11310 PIN KOMATSU is a precision-engineered mechanical connector used in heavy Komatsu earth-moving equipment. Its primary role is to link structural components such as booms, arms, and buckets, allowing them to pivot smoothly under high load while maintaining precise alignment. Designed from heat-treated alloy steel, this component combines extraordinary strength, corrosion resistance, and fatigue durability, ensuring long service life even in the toughest job-site conditions.

The 23B2711310 PIN KOMATSU functions as a critical hinge element that transmits force efficiently between moving assemblies. It minimizes play between components and distributes mechanical stress evenly across contact surfaces, protecting adjacent bushings and sleeves from early wear.

Supplied by 3GEN Export, this part meets OEM-level manufacturing precision and is compatible with several Komatsu excavator, bulldozer, and wheel-loader models. With worldwide delivery available within five working days, 3GEN Export guarantees reliability, traceability, and exceptional quality control for every shipment.

Engineering and Construction

Material Composition

• Core Material: High-tensile alloy steel (AISI 4140 / 42CrMo4)

• Surface Treatment: Induction-hardened outer layer for extreme wear resistance

• Hardness: 56 – 60 HRC (outer surface)

• Finish: Precision-ground and polished surface for zero-play installation

• Coating: Phosphate + anti-corrosive oil film for extended storage stability

Dimensional Accuracy

• Overall Length: ≈ 160 mm

• Working Diameter: ≈ 40 mm

• Thread Pitch: M16 × 2.0 mm (end thread)

• Weight: ≈ 2.85 kg

• Roundness Tolerance: ≤ 0.01 mm

Each 23B-27-11310 PIN KOMATSU is CNC-machined to ensure absolute concentricity between shaft and threaded end, providing effortless assembly and long-term load uniformity across bushings.

Function and Application

The 23B-27-11310 PIN KOMATSU serves as the mechanical pivot within Komatsu linkage systems. It carries the combined effects of static, dynamic, and shock loads generated during excavation, lifting, and material-handling operations.

Primary Functions

1. Load Transmission: Transfers hydraulic cylinder forces to structural members such as booms and arms.

2. Alignment Retention: Keeps moving components correctly positioned within their axis of rotation.

3. Wear Reduction: Works with hardened bushings to reduce metal-to-metal contact.

4. Shock Absorption: Damps vibration and sudden load peaks during impact or break-out forces.

5. Ease of Maintenance: Designed for quick replacement, simplifying service intervals on Komatsu machines.

Because it handles heavy cyclical loads, precision in both hardness and geometry is vital to prevent joint loosening or structural deformation.

Features and Advantages

• High Load Capacity – Withstands bending and torsional stress without cracking.

• Superior Surface Hardness – Resists galling and abrasive wear.

• Accurate Fitment – Ensures tight tolerance mating with original Komatsu bushings.

• Corrosion Protection – Anti-oxidation coating prevents rust under humid or saline conditions.

• Optimized Geometry – Chamfered edges for smooth insertion and hydraulic seal protection.

• Thread Integrity – Machined threads withstand repeated torque cycles during assembly.

• Maintenance Free Interface – Pre-oiled surface supports extended lubrication intervals.

Each pin is individually inspected for dimensional uniformity and micro-cracks using magnetic-particle and ultrasonic testing methods.

Compatible Komatsu Models

The 23B-27-11310 PIN KOMATSU is designed for widespread compatibility across multiple Komatsu product lines, typically in arm-to-boom joints, bucket linkages, or tilt-cylinder pivots.

Common applications include:

• Komatsu PC200 / PC210 / PC220 Excavators

• Komatsu PC240 / PC290 / PC300 Series Excavators

• Komatsu D65 / D85 Bulldozers

• Komatsu WA320 / WA380 Wheel Loaders

• Komatsu GD511 Motor Graders

(Always verify your serial number and service manual for final confirmation.)

Technical Specifications

Precision Manufacturing

Machining Process

1. CNC Turning and Facing – Initial stock shaping for dimensional accuracy.

2. Induction Hardening – Surface layer heated to controlled depth to enhance fatigue strength.

3. Centerless Grinding – Achieves mirror-smooth finish and tight diameter tolerance.

4. Thread Cutting and Rolling – Ensures uniform pitch and root radius for maximum torque strength.

5. Phosphate Coating and Oil Film – Final corrosion barrier for long-term storage and transport.

Each 23B-27-11310 PIN KOMATSU is traceable to its heat-treatment batch and accompanied by dimensional certificates upon request.

Performance Benefits

• Extended Service Life: Over 10 000 operating hours under standard Komatsu duty cycles.

• Lower Maintenance Costs: Reduced bushing wear and longer grease intervals.

• High Operational Stability: Minimal axial play preserves precision of hydraulic movement.

• Energy Efficiency: Smooth pivot motion reduces hydraulic resistance and fuel use.

• Vibration Control: Absorbs shock from sudden hydraulic pressure changes.

These advantages contribute directly to machine uptime, operational comfort, and lifecycle efficiency.

Installation and Maintenance Guidelines

• Always clean pin and bore surfaces before installation.

• Apply thin film of high-pressure grease to bearing areas.

• Align the pin axis accurately to prevent bushing edge wear.

• Torque end fasteners to manufacturer specifications.

• Check for free movement after installation and re-grease as needed.

Regular maintenance and proper assembly extend the life of the 23B-27-11310 PIN KOMATSU, ensuring consistent performance in demanding work environments.

Quality Assurance

All 3GEN Export components undergo a rigorous multi-stage inspection:

1. Material Verification – Spectrometer test confirms correct alloy composition.

2. Heat Treatment Check – Microhardness profile examined at three depth levels.

3. Dimensional Audit – CMM machines verify critical dimensions within ±0.005 mm.

4. Surface Integrity – Ra value controlled below 0.4 µm for sliding fit applications.

5. Corrosion Resistance Test – Salt-spray test simulates harsh job-site conditions.

6. Final Visual Inspection – Thread and surface defects checked before packaging.

Packaging and Delivery

• Packaging: Vacuum-sealed anti-corrosion film inside shock-proof cartons.

• Labeling: Part number and serial code clearly marked for traceability.

• Shipping: Air / sea freight options with tracking.

• Delivery Time: Guaranteed worldwide dispatch within 5 working days.

3GEN Export’s logistics team ensures timely and secure shipment to every continent.

Environmental Resistance

The 23B-27-11310 PIN KOMATSU is built to withstand dust, slurry, and temperature extremes common to mining and construction operations.

Performance Ratings:

• Dust Resistance: IP54 equivalent

• Corrosion Protection: 72 h salt spray tested

• Temperature Range: –40 °C to +200 °C

• Vibration Tolerance: 20 g shock resistance

This ensures dependable performance even in abrasive, wet, or temperature-fluctuating environments.

Industrial Applications

• Excavators: Boom-to-arm and arm-to-bucket connections.

• Dozers: Blade tilt and ripper joint assemblies.

• Loaders: Lift arm pivot points and hydraulic linkages.

• Graders: Moldboard mount and cylinder rotation points.

• Mining Equipment: Crusher feed mechanisms and screen vibration assemblies.

The robust design of the 23B-27-11310 PIN KOMATSU allows it to function flawlessly across multiple Komatsu platforms, supporting both linear and rotational movements without failure.

Why Choose 3GEN Export

OEM Precision and Reliability

3GEN Export manufactures and supplies heavy machinery spare parts engineered to OEM standards for fit and function. Our parts are trusted by equipment operators across five continents.

Global Service Commitment

• Delivery within 5 working days worldwide

• Multi-language customer support

• Technical consultation for fitment and maintenance

• Advanced tracking for every shipment

When you choose 3GEN Export, you invest in precision, longevity, and peace of mind.

Economic Impact and Operational Efficiency

Replacing a worn pin with the 23B-27-11310 PIN KOMATSU reduces operating costs by restoring machine stability and reducing bushing consumption. The restored alignment translates into less fuel use and fewer unexpected downtimes , key factors for cost-efficient fleet operation.

Key Efficiency Benefits:

• Lower vibration transmission

• Reduced hydraulic pressure loss

• Enhanced operator comfort

• Longer component life cycle

• Higher machine resale value

Every replacement pin from 3GEN Export delivers both mechanical and financial returns.

Summary

Conclusion

The 23B-27-11310 PIN KOMATSU is a mission-critical link in the strength chain of Komatsu’s hydraulic and structural systems. Its precision-machined geometry, induction-hardened surface, and load-balanced design guarantee superior resistance to wear and impact in any terrain or climate. For fleet owners and maintenance teams, it is an indispensable component that protects larger assemblies from premature failure.

By sourcing this component from 3GEN Export, you gain the reliability of OEM-grade manufacturing combined with the speed of global delivery and a reputation built on engineering excellence.

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.