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Spring Block – Replacement for Komatsu 56B-50-12315

OEM-Compatible Replacement Made in Ostim / Ankara Worldwide shipping
Worldwide shipping incl. USA · Made to drawing or sample

Spring KOMATSU 56B-50-12315

OEM / Cross-ref No: 56B-50-12315 Copy + Add to quote
Also known as: 56B-50-12315 · 56B5012315 · 56B 50 12315
All Komatsu equivalents →

Technical Specifications

Stock code IGM.10969
Product Name Spring
Brand KOMATSU
Original No 56B-50-12315 | 56B5012315
Weight 54.00 kg (119.05 lb)


Babacan Rubber 56B5012315 - 56B-50-12315 Komatsu Spring Block

Babacan Rubber is known as a leading manufacturer in the spare parts sector, providing quality service worldwide. Specifically, our product, the HM350, HM400 56B5012315 and 56B-50-12315 Spring Block designed for Komatsu construction machinery, is developed to enhance the suspension of Komatsu Articulated Truck. Produced using high-quality materials and cutting-edge technology, the 56B5012315 Komatsu spring block stands out for its durability, reflecting Babacan Rubber's commitment to customer satisfaction.

56B5012315 and 56B-50-12315 Komatsu spring block: High Performance and Durability

This specialized Spring Block is meticulously manufactured by Babacan Rubber's expert production team. The 56B5012315 and 56B-50-12315 Komatsu spring blockis an excellent solution to maintain the load balance of Komatsu Articulated Truck and reinforce the suspension system by minimizing vibrations. Babacan Rubber maintains its industry leadership by providing customers with reliable and long-lasting spare part solutions.

Where is the Komatsu 56B5012315 and  56B-50-12315 spring block Part Number Used?

The 56B5012315 and  56B-50-12315 spring block is specifically used in the suspension systems of Komatsu Articulated Truck. This part is designed to optimize the performance and increase the durability of machines under heavy working conditions.

Function of the Spring Block

This specific Spring Block is utilized in the suspension systems of Komatsu Articulated Truck to maintain load balance and provide operators with a more comfortable driving experience by minimizing vibrations.

At Babacan Rubber, we take pride in offering the best service to our customers. For any questions regarding the 56B5012315 and 56B-50-12315 Komatsu spring block or other high-quality products, contact us.

Application & technical notes

Heavy machinery operates in conditions that would destroy consumer products within hours. Impact loads, temperature extremes, and contamination challenge every component continuously. The Komatsu 56B-50-12315 spring block handles these demands through rubber engineering designed specifically for construction and mining applications where failure isn't an option.

What Spring Blocks Actually Do

Spring blocks serve dual purposes in heavy equipment suspension systems. First, they absorb shock loads that would otherwise transmit directly to the chassis. When a loaded bulldozer hits a rock or drops into a depression, the spring block compresses to cushion the impact. Second, they maintain proper suspension geometry by providing restoring force that returns components to neutral position after displacement.

Unlike metal springs that store energy elastically, rubber spring blocks dissipate energy through internal damping. This characteristic prevents the bouncing behavior that metal springs exhibit, providing more controlled suspension response particularly valuable in precision grading operations.

Material Properties That Matter

The 56B-50-12315 uses natural rubber compounds modified with synthetic polymers to achieve optimal performance characteristics. Natural rubber provides excellent resilience and low-temperature flexibility. Synthetic additions improve aging resistance and reduce permanent set under sustained loading. The blend delivers properties neither material achieves alone.

Hardness specifications for spring blocks balance load capacity against cushioning effectiveness. Too soft, and the block bottoms out under normal loads. Too hard, and it fails to absorb impacts adequately. The 56B-50-12315 maintains optimized hardness across its operating temperature range, preventing the stiffening that reduces effectiveness in cold conditions or softening that compromises load capacity when hot.

Load Distribution Mechanics

Heavy equipment generates complex loading patterns. Static loads from machine weight combine with dynamic loads from operation. Vertical forces dominate but lateral and torsional loads occur during turning or working on slopes. The spring block's geometry must accommodate all these load types without excessive deformation or stress concentration.

  • Load capacity handles 5-15 ton equipment
  • Compression deflection controlled within design limits
  • Shear resistance prevents lateral displacement
  • Metal bonding distributes interface stresses

Environmental Resistance Requirements

Construction sites and mining operations expose components to aggressive environments. Hydraulic fluid leaks coat nearby parts. Diesel fuel spills occur during refueling. Underground mining introduces exposure to acidic water. The spring block compound resists degradation from all these contaminants while maintaining mechanical properties.

Ozone resistance deserves particular attention. Atmospheric ozone attacks rubber surfaces, creating cracks that propagate under cyclic loading. Antiozonants incorporated into the compound migrate to the surface, forming a protective barrier that sacrifices itself rather than allowing attack on the base polymer. This protection extends service life dramatically compared to unprotected compounds.

Installation and Service Considerations

Replacing spring blocks requires attention to details that aren't obvious from service manuals. Mounting bolts must be torqued to specification—but temperature matters. Installing blocks when cold requires different torque values than installation at operating temperature due to thermal expansion. Following manufacturer specifications prevents over-compression that reduces service life or under-compression that allows movement damaging both block and mounting points.

Inspection Protocol

Regular inspection identifies wear before catastrophic failure occurs. Look for surface cracking indicating ozone degradation or fatigue. Check for bulging suggesting internal bond separation. Measure deflection under load—if the block compresses more than design specifications, it has taken permanent set and requires replacement.

Operational Impact

Worn spring blocks create problems extending far beyond ride quality. Excessive suspension travel allows components to contact stops violently, damaging both the stop and the component. Uncontrolled movement changes working geometry, affecting blade angle or bucket positioning. Operators compensate by working more slowly, reducing productivity even if they don't recognize the cause.

Fresh spring blocks restore proper suspension function, and experienced operators notice immediately. The machine rides smoother over rough terrain. Control responses become more predictable. Productivity improves as the operator regains confidence to work at normal speeds. These benefits justify proactive replacement based on hours or inspection findings rather than waiting for obvious failure.

Technical Specifications

Complete specifications, installation instructions, and compatibility details: 56B-50-12315 Spring Block Product Information

Conclusion

Suspension components don't generate the attention given to engines or hydraulics, yet they significantly impact machine performance and operator comfort. The 56B-50-12315 spring block demonstrates how thoughtful rubber engineering addresses real operational challenges—absorbing impacts, maintaining geometry, resisting environmental attack, and delivering years of reliable service in conditions that would quickly destroy lesser components.

Frequently Asked Questions

Which OEM part numbers does this part replace?

KOMATSU SPRING BLOCK 56B5012315 56B-50-12315 is produced against OEM reference KOMATSU 56B-50-12315. Send us the OEM part number you need and our team will confirm the matching Babacan part and its compatibility for your machine.

Is this part EN 45545-2 compliant?

For railway applications our rubber parts can be supplied in EN 45545-2 fire-and-smoke compliant compounds on request. Specify the hazard level (HL1–HL3) required for your project and we will provide a suitable formulation and documentation.

What rubber compounds and hardness options are available?

We offer NR, SBR, EPDM, NBR and silicone-based compounds, typically from 40 to 90 Shore A. We recommend the right material based on the temperature, load and oil-resistance requirements of your specific application.

Do you produce samples and series batches?

Yes. We manufacture both samples and series production at our Ostim / Ankara facility, working from a technical drawing or a sample part. Contact us through the form for a quotation and lead time for your parts.

All manufacturer names, symbols, descriptions and part numbers are used for reference purposes only and do not imply that any part is the product of that manufacturer.

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