Description
Manufactured in 2026 by ROKK Processing Ltd, this ex-demonstration ROKK RFE 1500E is the second-generation PLC model, incorporating several significant enhancements over the original design, including a 12-inch Siemens S7 touchscreen HMI and Variable Frequency Drive (VFD) control of the dasher drive as standard.
Designed for the continuous freezing, mixing and whipping of ice cream mix with air, the RFE 1500E produces consistently high-quality ice cream while also being ideally suited to the manufacture of gelato, sorbet, water ice products and a wide range of other scraped surface heat exchanger applications.
With a production capacity of 350–1,500 litres per hour (92–396 US gallons/hour) at 100% overrun, and the ability to achieve overruns of up to 150% (recipe dependent), the machine offers exceptional flexibility for both high-volume production and premium artisanal products.
Factory tested and built using premium industrial components throughout, the RFE 1500E combines advanced automation, exceptional process control and energy-efficient operation within a compact, hygienic design.
Why choose the new RFE 1500E PLC machine?
The second-generation ROKK RFE 1500E introduces several significant upgrades over the original PLC model, delivering greater process control, improved usability and enhanced product consistency.
The most notable enhancement is the addition of Variable Frequency Drive (VFD) control on the dasher drive as standard. Combined with inverter control of the Bitzer refrigeration compressor and VFD-controlled inlet and outlet pumps, operators have complete control over every stage of the freezing process.
A further upgrade is the 12-inch Siemens S7 touchscreen HMI, replacing the previous 9-inch operator interface fitted to the first-generation PLC machines. The larger display provides a more intuitive user experience, making recipe management, production monitoring, diagnostics and machine control quicker and easier during day-to-day operation.
Together, these enhancements give operators the ability to precisely adjust:
- Dasher speed
- Product texture
- Overrun
- Viscosity
- Freezing temperature
- Product consistency
- Production capacity
The result is greater flexibility when changing recipes, improved repeatability between production runs, and consistently superior product quality across ice cream, gelato, sorbet, water ice and other frozen desserts.
Built for performance
The RFE 1500E has been engineered for reliability, efficiency and hygiene.
Its compact footprint incorporates a horizontally mounted, mirror-finished freezing cylinder and a stainless steel dasher fitted with a mechanical hard-metal shaft seal. All product-contact components are manufactured from stainless steel or approved food-grade materials, ensuring excellent hygiene standards and long service life.
Variable Frequency Drives (VFDs) control the inlet and outlet pumps for accurate mix flow, while inverter-controlled refrigeration and dasher speed provide precise control of the freezing process across a wide production range.
Fully factory tested prior to shipment, the machine is ready for production once connected to electrical power, cooling water, compressed air and mix supply.
Key benefits
- 12-inch Siemens S7 touchscreen HMI, replacing the earlier 9-inch operator interface
- Fully automatic PLC control with automated start-up, production, standby/resume, end-of-cycle and CIP cleaning
- Advanced recipe management with storage, editing and recall
- Real-time monitoring of viscosity, temperature, overrun, pressure and refrigeration capacity
- Integrated alarm diagnostics, operating hours and production totals for improved production monitoring and maintenance planning
- VFD-controlled dasher drive for precise control of texture, viscosity, overrun and finished product consistency
- Inverter-controlled Bitzer refrigeration compressor for precise refrigeration capacity, energy-efficient operation and up to 60% energy savings at reduced production rates
- VFD-controlled inlet and outlet pumps for accurate mix flow control and maximum production flexibility
- Flexible production capacity from 350–1,500 litres/hour with 20–150% overrun (recipe dependent)
- Suitable for ice cream, gelato, sorbet, water ice and other scraped surface heat exchanger applications
- Bronkhorst Mass Flow Air Meter for precise, repeatable overrun control
- Endress+Hauser Flow Meter for accurate mix flow measurement
- Water-cooled shell-and-tube condenser with automatic Danfoss water control valve for reliable, low-maintenance operation and reduced water consumption
- Hot gas injection and automatic defrost system
- Engineered to minimise product loss during start-up and end of production
Technical specifications
- Manufacturer: ROKK Processing Ltd
- Model: RFE 1500E PLC
- Function: Continuous Ice Cream Freezer
- Year of Manufacture: 2026 (Ex-Demo)
- Serial Number: 26-60037
- Production Capacity: 350–1,500 litres/hour (at 100% overrun)
- Maximum Overrun: Up to 150% (recipe dependent)
- Refrigerant: R449A (6 kg charge)
- Total Installed Power: 30 kW
- Electrical Supply: 400V / 50Hz / 3 Phase
Scope of supply
- 12-inch Siemens S7 colour touchscreen HMI with integrated PLC control system
- Stainless steel machine frame manufactured from heavy-duty 60 mm box section
- Mirror-finished, chrome-plated horizontal freezing cylinder
- Stainless steel open-style dasher with four rows of scraper blades
- Variable Frequency Drive (VFD) controlled inlet (mix) rotary pump
- Variable Frequency Drive (VFD) controlled discharge (ice cream) rotary pump
- Variable Frequency Drive (VFD) controlled dasher drive
- Variable Frequency Drive (VFD) Semi-hermetic Bitzer refrigeration compressor
- Water-cooled shell-and-tube condenser
- Hot gas injection and automatic defrost system
- Danfoss automatic cooling water control valve
- Bronkhorst Mass Flow Air Meter for automatic overrun control
- Endress+Hauser flow meter for accurate mix flow measurement
- Digital cylinder pressure transducer
- Integrated refrigeration system charged with R449A refrigerant
- CIP (Clean-in-Place) cleaning system
- Stainless steel and food-grade product contact components
- Instruction manual
Dimensions
- Length: 2100 mm
- Width: 870 mm
- Height: 1720 cmm
- Weight: 1200 kgs
Instagram
YouTube
LinkedIn