Introduction to CIFA's Hybrid Machines

CIFA has developed the CSSE Hybrid, the first hybrid shotcrete vehicle designed specifically for underground construction. This machine is part of the ENERGYA series, known for meticulous attention to detail and sustainability. The CSSE features a striking design by CIFA's Styling Center that emphasizes its eco-friendly concept.

Technological Innovation and Market Leadership

CIFA pioneered hybrid technology in concrete mixers in 2013, combining electric and diesel powertrains. The CSSE extends this expertise to tunnel construction, integrating carefully selected electrical and electronic components. The internally developed control software optimizes energy management, allowing the vehicle to operate fully in electric mode during all work phases, eliminating fuel consumption and emissions.

Environmental and Operational Benefits

• Improved working conditions with zero emissions
• Reduced fuel consumption and environmental impact
• Healthier environment for operators and surroundings
• Intelligent energy savings through hybrid technology

Hybrid System Features

The ENERGYA series' innovative hybrid spraying system combines performance with reliability. Two electric motors serve dual functions: vehicle propulsion and hydraulic pump operation without fuel use or CO2 emissions. The CSSE can operate all functions electrically, including driving, pumping, boom control, additive dosing, water pumping, and concrete delivery.

When connected to the electrical grid during pumping, the vehicle can simultaneously operate and recharge its batteries, extending operational readiness indefinitely. It also includes a Kinetic Energy Recovery System (KERS) that recovers energy during braking to recharge the battery.

Advantages in Sensitive Work Environments

The CSSE is especially suited for sensitive environments like tunnels and enclosed construction sites, where emissions and noise are critical concerns. Key benefits include:

• Zero pollutant emissions
• Fewer mechanical components leading to higher reliability
• Superior traction with electric control
• Lower maintenance requirements
• Greater operational efficiency

Traction and Drive System

The vehicle uses two electric motors directly mounted on the axles, enabling it to handle any tunnel terrain with maximum efficiency and a fully eco-friendly drive concept. This simplified layout reduces mechanical parts, weight, and maintenance needs compared to traditional hydrostatic drives.

Performance Control and Pump Unit

CIFA's proprietary software manages all vehicle functions and energy consumption optimally, enhancing overall efficiency. The pump unit is designed to minimize wear and vibrations, featuring two hydraulic circuits that separately control the pump and S-pipe for smooth, consistent concrete flow.

Dosing and Electronic Control Systems

The exclusive dosing system handles all types of liquid accelerators using an electronically controlled peristaltic pump adjustable via onboard display controls. The vehicle's onboard display monitors battery charge, component status, and active functions in real time, providing comprehensive electronic control.

Distribution Boom and Maneuverability

The CSSE's distribution boom consists of three "Z"-fold sections, offering flexibility and safety in various tunnel conditions. It features a dual slewing ring for horizontal and vertical rotation and longitudinal movement along the vehicle to expand the working area and reduce vehicle repositioning. The third boom section extends telescopically and is remotely controlled.

The vehicle has four steerable drive wheels with three steering modes. The operator's seat can rotate 180° to facilitate control in confined spaces and includes an infrared camera for enhanced visibility.

Summary of Critical Specifications and Features

• Charging time: 2 hours
• Lithium-ion battery energy storage with electric power supply via plug connection
• Diesel engine unit available to provide drive power and concrete pumping when battery is depleted
• KERS system for kinetic energy recovery during braking
• Reduced mechanical complexity and maintenance
• Optimized energy management software developed in-house
• Designed specifically for underground and tunnel construction environments

Conclusion

The CSSE Hybrid from CIFA represents a sustainable revolution in construction machinery, combining advanced hybrid technology with robust reliability and operational efficiency. It addresses environmental challenges in underground construction by eliminating emissions and reducing fuel consumption while maintaining high performance and operator comfort.