 |
Product Description
When maximum efficiency and robust power are non-negotiable, the YZH HA 55HD Hydraulic Power Unit is the definitive choice. Engineered specifically for large-scale rockbreaker and hydraulic hammer applications, the HA 55HD integrates a high-performance variable displacement piston pump. This intelligent design delivers power precisely when needed, dramatically reducing energy waste and lowering operational costs while providing the brute force required for the toughest jobs in mining and quarrying.
The HA 55HD is designed from the ground up for superior performance and efficiency in variable-load conditions, setting it apart from standard power pack configurations.
Intelligent Power on Demand: At the core of the HA 55HD is a Variable Displacement Piston Pump. Unlike fixed pumps that run at full capacity, this advanced pump automatically adjusts oil flow to match the real-time demands of the hydraulic hammer. This means significantly lower energy consumption during idle or low-power cycles, leading to substantial cost savings and reduced heat generation.
Rugged Horizontal Motor: The unit is built around a durable Squirrel Cage Motor in a horizontal position, a configuration designed for stability and longevity in the most demanding industrial environments.
Every HA 55HD is delivered as a fully integrated, turnkey solution built for reliability and ease of use.
Superior System Protection: High-capacity pressure and return filters ensure your hydraulic fluid remains clean, protecting sensitive components and maximizing the service life of your entire boom system.
Optimal Thermal Management: A high-efficiency oil cooler maintains the ideal hydraulic fluid temperature, preventing overheating during continuous operation and ensuring consistent, reliable performance.
Turnkey Electrification: The unit arrives ready for immediate installation, pre-wired for standard voltages (400V/50Hz or 480V/60Hz, with other options available) and protected by an IP55-rated enclosure against dust and water ingress.
All-Weather Reliability: An optional oil heater is available to guarantee smooth start-ups and peak performance in cold-weather conditions.
| Parameter | Unit | HA 55HD |
|---|---|---|
| Motor Power (50Hz / 60Hz) | kW | 55 / 66 |
| Oil Flow (at 1500rpm / 50Hz) | L/min | 120 |
| Oil Flow (at 1800rpm / 60Hz) | L/min | 180 |
| Oil Tank Volume | L | 400 |
| Working Weight (without oil) | kg | 960 |
Heavy Duty
Squirrel cage motor in horizontal position
Variable displacement piston pump
Pressure and return filter
Oil cooler
Optional oil heater
Complete with electrification
Standard voltage 400V / 50Hz or 480V / 60 Hz, others available
IP class 55
