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Images are for illustration purposes only. Final product may vary depending on selected options and specifications.

MarMac HV Rock-RX

The Solution for

Unmanageable Amounts of

Used Growing Bags

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Marshall Machinery has previously engineered and manufactured the ROCK-RX — a purpose-built substrate processing system developed to provide growers with a faster, more cost-effective and environmentally responsible way to process used horticultural growing bags and substrate.

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Developed through years of research, engineering and industry collaboration, the ROCK-RX was designed to help specialist growers reduce manual handling, minimise waste and recover valuable growing media and organic material.

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Building on this experience, Marshall Machinery is now developing the new HV Rock-RX — a high-volume horticultural waste processing system designed for significantly greater processing capacity and minimal manual handling.

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The HV Rock-RX is being developed to allow whole loads of used growing bags and horticultural waste to be loaded using a telehandler, front-end loader, excavator or tractor-mounted equipment, rather than relying on manual feeding. The system is designed to automatically open, process, separate, refine and screen the incoming material into organic fines, lightweight plastic and heavy/oversize contaminants.

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The HV Rock-RX is intended for high-volume commercial applications, including aged and heavily rooted growing bags used in strawberry, raspberry, blueberry, blackberry, tomato, capsicum and other protected cropping operations. It is also being developed with potential applications in commercial green waste, council, landscaping and waste-processing operations.

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The system is designed around three key output streams:

  1. Organic Fines — coir, growing media, soil, fine roots and plant material.

  2. Lightweight Material — growing-bag plastic, plastic film and other lightweight contaminants.

  3. Heavy/Oversize Material — wood, stones, metal and other heavier contaminants.

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With target processing rates of up to 60 m³ per hour under suitable conditions, the HV Rock-RX is being developed to significantly increase processing capacity while reducing manual handling and plastic contamination.

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The HV Rock-RX is currently under development, with final specifications, configuration, throughput, dimensions, power requirements and component selection to be confirmed through detailed engineering and material testing. Machines are engineered and configured to suit the customer's requirements and intended application. Contact Marshall Machinery to discuss the current ROCK-RX systems or the development of the new HV Rock-RX high-volume processing system.​​​

​Specifications​​

  • High-volume automated horticultural waste processing system

  • Designed for processing used horticultural growing bags and substrate

  • Suitable for heavily rooted and difficult-to-handle material

  • Suitable substrates include coir, wood fibre, wood chips, rockwool, perlite and soil

  • Also suitable for bagged green waste and other horticultural waste

  • Three-way material separation:

    • Organic fines — growing media, soil, roots and plant material

    • Lightweight material — plastic film and growing-bag plastic

    • Heavy/oversize material — wood, stones, metal and other contaminants

  • Target organic processing capacity: up to 60 m³/hour*

  • Loading by front-end loader, excavator, telehandler or similar equipment

  • Standard hopper height: approximately 3.2 m*

  • Heavy/oversize material handling: up to 75 mm diameter × 400 mm length*

  • Conveyor discharge for organic material

  • Integrated screening and separation system

  • Designed to minimise plastic fragmentation

  • Designed for minimal manual handling

  • Purpose-built transportable modular system

  • 415 V, 3-phase power requirement

  • Minimum recommended generator capacity: 100 kVA

  • Safety guarding and emergency shutdown systems

  • Designed for potential recovery and reuse of organic material

  • Suitable for mobile processing and relocation between sites

 

*Target specifications subject to final engineering and material testing. Actual performance will depend on material type, moisture, density, root and plant content, plastic contamination and feed consistency.

​Configurations​​

 
HV Trailer System – Higher Mobility Option

  • HV Rock-RX processing modules factory-mounted on a purpose-built, road-registerable semi-trailer

  • Includes a second road-registerable towable trailer

  • Custom trailer configuration to suit equipment, payload, dimensions and transport requirements

  • Designed for relocation using a suitable prime mover truck

  • Ideal for mobile and contract processing operations

  • Enables processing directly at the source of horticultural waste

  • Rapid deployment between farms and processing sites

  • Integrated front jacking system allows the processing unit to be disconnected from and supported independently of the prime mover

  • Road-ready configuration including lighting, braking systems, guards and required signage

  • Transport configuration designed to suit applicable road transport regulations

 
HV Diesel Power Plant

  • Integrated diesel power system for operation without mains electricity

  • Approximately 100 kVA, 415 V, 3-phase generator

  • Industrial diesel engine sized to suit the final HV Rock-RX configuration

  • Integrated electrical and/or hydraulic power generation

  • Approximately 340 L fuel capacity*

  • Integrated engine monitoring and protection systems

  • Automatic safety shutdown systems

  • Designed for self-contained operation

  • Suitable for remote agricultural, horticultural and waste-processing locations

 

*Final specifications, generator size, engine capacity, fuel capacity and associated components are subject to final engineering and machine configuration.

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