EC210 Swing Motor for Volvo EC210 Excavator spare parts

EC210 Swing Motor for Volvo EC210 Excavator spare parts Featured Image
  • EC210 Swing Motor for Volvo EC210 Excavator spare parts
  • EC210 Swing Motor for Volvo EC210 Excavator spare parts
  • EC210 Swing Motor for Volvo EC210 Excavator spare parts

Short Description:

The ZAX330 swing motor is an original-matched heavy-duty integrated swing drive assembly professionally customized for Hitachi 33-ton ZAX330 large hydraulic excavator, perfectly compatible with the factory’s high-efficiency negative flow hydraulic control system.

Product Detail

Product Tags

description

The EC210 swing motor adopts heavy‑duty axial plunger hydraulic structure, matched with 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‑reverse rotation impact and long‑term variable‑load operation of 21‑ton Volvo engineering 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 and partial‑load 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: EC210 Swing Motor
Product Type: Integrated Swing Drive Motor with Reducer & Wet Parking Brake
Applicable Equipment: Volvo EC210 21‑Ton Excavator
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 EC210 slewing bearing, main control valve and hydraulic pipeline system.
Working Type: 21‑Ton Integrated Swing Drive Assembly
Rated Swing Pressure: 24‑30bar
Output Torque: Matched with Volvo EC210 factory standard
Brake Mode: Spring‑Engaged Wet Multi‑Disc Parking Brake, Hydraulic Pressure Release
Rotation Direction: Bidirectional Forward & Reverse Swing

advantages

  • Full OEM Compatibility, Lossless Plug‑and‑Play: Strictly follow EC210 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 21‑ton earthwork operations, avoiding gear pitting, abnormal noise and early wear and aging of old equipment.
  • 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.
  • Strict Factory Testing, Stable and Durable Performance: Each EC210 swing motor undergoes complete torque calibration, brake pressure‑holding test, high‑pressure sealing test and impact aging test. The consistent and stable performance significantly improves the operating reliability and residual value of overhauled equipment.

FAQ

  • Q1: Which excavator is this swing motor suitable for?
  • A: Exclusively customized for Volvo EC210 21‑ton excavator. It is an integrated swing motor assembly with reducer and wet brake, not universal for other Volvo tonnage or series models.
  • Q2: What main faults can the EC210 swing motor repair?
  • A: It solves typical aging faults of EC210 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 EC210 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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