ZAX200 Swing Motor for Hitachi ZAX200 Excavator spare parts

ZAX200 Swing Motor for Hitachi ZAX200 Excavator spare parts Featured Image
  • ZAX200 Swing Motor for Hitachi ZAX200 Excavator spare parts
  • ZAX200 Swing Motor for Hitachi ZAX200 Excavator spare parts
  • ZAX200 Swing Motor for Hitachi ZAX200 Excavator spare parts

Short Description:

The SK260‑8 swing motor is an integrated swing drive assembly professionally customized for Kobelco 26‑ton SK260‑8 hydraulic excavator, matching the original negative‑flow hydraulic control system.

Product Detail

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description

The ZAX200 swing motor adopts heavy-duty axial plunger hydraulic structure, matched with high-precision ground carburized-quenched planetary reduction gears. The gear tooth surface undergoes strict hardening and fine polishing treatment, featuring high hardness, strong wear resistance and excellent impact resistance, fully adapting to frequent forward and reverse rotation impact and long-term variable-load operation of 20-ton Hitachi construction excavators. The built-in high-sensitivity wet multi-disc brake adopts spring pressure holding and hydraulic release design, achieving instant mechanical locking after rotation stops, completely eliminating upper-structure drifting risks during slope construction and greatly improving operational safety. The upgraded high-precision valve plate and sliding shoe friction pair optimizes micro oil distribution clearance, effectively suppressing internal leakage and pressure attenuation caused by long-term high-temperature and heavy-load operation, restoring the original smooth and powerful swing performance of the equipment. Equipped with multi-layer composite high-temperature and oil-resistant sealing kits, it resists hydraulic oil erosion and seasonal temperature aging, effectively reducing external oil leakage failure rate.

product parameters

Product Model: ZAX200 Swing Motor
Product Type: Integrated Swing Drive Motor with Reducer & Wet Parking Brake
Applicable Equipment: Hitachi ZAX200 20-Ton Excavator
Structural Features: Axial Plunger Structure, Carburized-Quenched Planetary Gear, Wet Multi-Disc Brake, Integrated Compact Structure, OEM Standard Oil Port Layout
Core Material: High-Strength Alloy Quenched Gear, Thickened Reinforced Motor Housing, High-Precision Friction Pair, High-Temperature Resistant Composite Seal
Working Performance: Sensitive Swing Response, Stable Torque Output, Smooth Low-Speed Rotation, Reliable Brake Locking, Low Internal & External Leakage
Core Functions: Provide stable rotary driving torque for upper carbody, realize accurate fine positioning and anti-slip parking, fully compatible with original load-sensing hydraulic system cycle operation.
Applicable Scenarios: Municipal Trenching, Earthwork Backfilling, Material Loading, Foundation Construction, Slope Operation, Long-Term Continuous On-Site Work
Matching Parts: Fully compatible with original ZAX200 slewing bearing, main control valve and hydraulic pipeline system.

advantages

  • Full OEM Compatibility, Lossless Plug-and-Play: Strictly follow ZAX200 original factory drawing standards for mounting holes, spline specifications and hydraulic port positions. No shell processing, pipe cutting or welding is required during on-site replacement, greatly shortening equipment maintenance downtime and improving overhaul efficiency.
  • Hardened Gear Train, Strong Impact and Wear Resistance: The planetary gear set adopts carburizing quenching and precision grinding technology, with upgraded surface hardness and fatigue resistance. It effectively copes with frequent positive and negative rotation impacts of 20-ton earthwork operations, avoiding gear pitting, abnormal noise and early wear and aging of old equipment.
  • High-Stability Wet Brake, Eliminate Car Body Drifting: Optimized spring pressure holding structure provides stable and reliable parking brake torque. It thoroughly solves the common faults of slow brake response, brake slipping and upper-structure drifting during slope and partial load operation of aging ZAX200 excavators, improving overall construction safety.
  • Optimized Friction Pair, Eliminate Internal Leakage and Weak Swing: Upgraded high-precision valve plate and sliding shoe matching accuracy optimizes micro oil distribution clearance, restrains internal leakage and pressure attenuation under long-term high-temperature variable-load conditions, restores original powerful and sensitive swing torque, and solves problems of slow swing speed and jittery low-speed rotation.
  • Reinforced Sealing System, Adapt to Harsh Working Conditions: Multi-layer composite high and low temperature resistant and oil-corrosion resistant sealing components resist hydraulic oil erosion and seasonal temperature aging, permanently solve the external oil leakage problem of old machines, and reduce later maintenance frequency and operating costs.

FAQ

  • Q1: Which excavator is this swing motor suitable for?
  • A: Exclusively customized for Hitachi ZAX200 20-ton excavator. It is an integrated swing motor assembly with reducer and wet brake, not universal for other Hitachi tonnage or series models.
  • Q2: What main faults can the ZAX200 swing motor repair?
  • A: It solves typical aging faults of ZAX200 original swing system: insufficient swing torque, slow slewing speed, low-speed swing jitter, brake slipping, upper-structure drifting on slopes, high-temperature internal leakage and external oil leakage.
  • Q3: Is on-site modification required for installation?
  • A: No modification needed. 1:1 fully matched OEM installation size, spline and oil-port layout support direct replacement, fully compatible with standard overhaul procedures.
  • Q4: What causes drifting after replacing the swing motor?
  • A: Besides motor performance, check brake pilot pressure, brake relief valve pressure, slewing bearing clearance and main valve swing spool wear to rule out hydraulic system and mechanical clearance failures.
  • Q5: Daily maintenance tips for ZAX200 swing motor?
  • A: Keep hydraulic oil clean and replace filter elements regularly; avoid long-term high-frequency impact swing operation; periodically check motor for oil leakage and test brake holding performance under slope working conditions.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.

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our warehouse

Pack and ship

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