Cat 312 ExcavatorTravel SY75 SY135 SY215 SY335 SY375 Final Drive Assy for Sany Excavator TM09 TM22 MAG85 TM40 TM60 TM70

1. Product Overview

2. Core Product Advantages

• High Load-Bearing & High Torque Performance: Optimized gear reduction structure with a standard reduction ratio of 50.5:1 realizes stable high torque output. It effectively copes with heavy-load walking, climbing and uneven road driving conditions, ensuring strong and continuous power without stalling or power attenuation.
• Superior Durability & Wear Resistance: Core components including cylinder block, piston shoe, valve plate and driving gear are made of high-strength alloy steel with precision forging and heat treatment technology. The whole machine features high hardness, strong compression resistance and excellent wear resistance, greatly extending the service life under long-term high-intensity operation.
• Precision Manufacturing & Stable Operation: Adopts micron-level precision machining process for matching parts, with tight assembly tolerance control. The hydraulic system operates smoothly with low vibration and low noise, effectively avoiding oil leakage, jamming and other common faults, improving the overall operating stability of the excavator.
• Strong Compatibility & Easy Installation: Standard original factory installation size (30 mounting holes for frame and driving gear, 402mm driving gear inner diameter). It perfectly matches multiple mainstream excavator models, supports direct replacement, no modification required, greatly reducing installation time and maintenance cost.
• High Temperature Resistance & Oil Circuit Stability: Optimized hydraulic oil circuit design with high-quality sealing accessories, effectively resisting high temperature aging and hydraulic oil erosion. It maintains stable sealing performance in high-temperature and high-pressure working environments, avoiding oil leakage failures.
• Cost-Effective & Low Maintenance: Integrated modular design simplifies daily maintenance and part replacement. With low failure rate and long service cycle, it effectively reduces the later operation and maintenance costs of construction equipment.

• Parameter Item	Specification Data
  Product Model	MAG-85VP-1800 / MAG-85VP-2400E
  Applicable Machine Weight	14-16 Ton Crawler Excavators
  Upper Frame Mounting Holes	16 Holes (Uniform Distribution)
  Drive Sprocket Mounting Holes	15 / 22 Holes (Optional)
  Upper Frame Inner Diameter	290mm
  Drive Sprocket Inner Diameter	324mm
  Core Material	High-strength Alloy Steel + Imported Hydraulic Components
  Certification Standard	RoHS Compliant, Factory Original Standard
  Working Temperature Range	-30℃ to +80℃
  Main Features	Low Noise, High Torque, Oil Leakage Resistance, Wear Resistance

  

• Excellent Durability & Wear Resistance

  The gear and bearing components are made of high-strength alloy steel with precision quenching and tempering treatment, which greatly enhances wear resistance and impact resistance. The integrated sealing structure adopts imported high-density sealing parts, which effectively prevents hydraulic oil leakage, dust and sediment intrusion, and reduces component wear, extending the overall service life of the assembly.