In the selection of medium-capacity concrete batching plants, the HZS75 and HZS90 models—both utilizing the JS1500 mixing system as their core component—represent distinct operational philosophies despite their shared mechanical foundation. This document provides a formal comparison of their technical specifications, operational efficiencies, structural configurations, and economic considerations to support informed decision-making.
1. Common Core Mixing System
Both installations employ the JS1500 twin-shaft forced-action mixer, characterized by:
- Dual-motor drive configuration: 2 × 30 kW
- Nominal batch capacity: 1.5 m³ (discharge volume)
- Mixing mechanism: Counter-rotating shafts operating at 23.5–25.5 r/min
- Charging capacity: 2,400

2. Production Capacity and Cycle Analysis
HZS75کنفیگریشن
- Material handling: Hoist-fed loading system
- Cycle duration: 72 seconds per complete batch
- Theoretical output: 75 m³/h
- Practical output (accounting for operational delays): ≈50 m³/h
- Estimated daily production (8-hour operation): ≈400 m³
HZS90 Configuration
- Material handling: Belt conveyor system with integrated waiting hopper
- Cycle duration: 60 seconds per complete batch
- Theoretical output: 90 m³/h
- Practical output: ≈65 m³/h
- Estimated daily production: >500 m³
The HZS90 configuration demonstrates a approximately 30% increase in practical output, representing a significant advantage for operations requiring sustained high-volume production.
3. Structural and Installation Considerations
- HZS75: Employs vertical hoist material handling, resulting in a compact footprint and simplified installation. Suitable for projects with spatial constraints or frequent relocation requirements.
- HZS90: Utilizes inclined belt conveyor system requiring greater installation area and more extensive foundation preparation. Offers enhanced operational continuity and reduced mechanical stress during material transfer.
4. Batching Methodology
- HZS75: Sequential cumulative weighing system. Materials are metered consecutively into a single weighing hopper.
- HZS90: Simultaneous independent weighing system. Multiple materials are weighed concurrently in dedicated compartments, reducing cycle time and improving batching accuracy.
5. Economic Analysis
- Capital investment (reference values):
- HZS75: Approximately ¥320,000
- HZS90: Approximately ¥520,000
- Return on investment profile:
The HZS90's superior output capacity and operational reliability typically yield a more favorable long-term economic return for operations with consistent demand exceeding 500 m³/day.

6. Selection Guidelines
The optimal configuration depends on specific operational requirements:
HZS75 is recommended for:
- Projects with capital budget constraints
- Applications requiring mobility or rapid deployment
- Operations with daily production requirements below 400 m³
HZS90 is recommended for:
- Stationary installations with adequate space
- Commercial concrete production requiring high-volume output
- Operations prioritizing production efficiency and operational continuity
Both configurations represent robust engineering solutions within their respective operational classes. Prospective users should evaluate individual project requirements against these technical and economic parameters to determine the optimal selection.