1/14 crawler three-arm hydraulic top version Hitachi 135 full metal excavator

1- Hydraulic System:
① Employs a dual-pump + FrSky hydraulic control system. Each machine is meticulously factory-tuned by Super Frog, ensuring delicate and linear movements with smooth coordination.
② Features a self-developed gear pump: precision machined, pressure can be stably maintained at 4-6 MPa.
③ Features a self-developed directional control valve: precision machined, excellent sealing performance, and superior linear and micro-control capabilities.
④ The oil tank, gear pump, and directional control valve are connected via a manifold block, resulting in a compact and reliable structure while reducing the possibility of oil leakage.
⑤ Oil circuit system: copper pipe welding + high-pressure resistant hoses, ensuring a stable and reliable system. Unified standard interfaces allow for quick integration of future upgrades.

2- Modularized High-Simulation Design: Extremely detailed replica of the real machine, exquisite appearance, stainless steel 304 excavator arm, and structural components are all CNC machined.

3- Hydraulic Wrist: Key components such as the rotary gearbox, hydraulic clamp, hydraulic quick coupler, and slip ring are all CNC precision machined, ensuring a reliable and durable structure with an exquisite appearance. The quick coupler uses a unified standard interface, compatible with various attachments, bringing more fun to the operation.