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PulPac launches the world’s first injection molding machine for fibre-based

Author:gly    Date: 2024-09-30    

products - products made with injection moulding

Among many highlights will be a fully automated production cell demonstrating the efficient and precise processing of sustainable biopolymers. Comprising a ROBOSHOT a-S150iB with a clamping force of 150 tons and an LR-10iA compact 6-axis robot, this example of seamless cell integration will show how moulding shops can increase their output significantly. Longitudinally mounted on an additional linear axis, the complete footprint of the exhibit has been minimised.

A further eye-catching display at FAKUMA will be the FANUC ROBOSHOT a-S100iB, presented together with the SEPRO Success 11 robot. This combination demonstrates the flexibility and versatility of FANUC injection moulding solutions, enabling the precise and fast handling of plastic parts with seamless integration of third-party robots.

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The relative energy gain per cycle (or energy saving per part) is higher on slow cycling parts. The energy gain per individual part is lower on fast cycling parts, but many more parts are produced per hour/day so the absolute energy gain over time is higher. For process integration, automating operations can also reduce some energy used. Automation increases the machine’s productivity by having consistent operations on de-moulding or other secondary activities. This leads to reduced cycle times and reduce the overall time required for the machine to be used, cutting energy albeit in small amounts.

Elsewhere on the stand at FAKUMA, visitors will discover how quickly they can automate steps in the injection moulding process with FANUC's CRX-iA lightweight collaborative robot (cobot), which is easy to program using a tablet PC and drag-and-drop functionality. The CRX is user-friendly, flexible and safe to operate without the need for guards or barriers, making it perfect for integration into a wide variety of manufacturing environments.

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Moulders that want to reduce their energy bills must look at the entire process chain – from product design and machine technology to process control and production planning – to save money. ARBURG applications expert Lukas Krueger showed more than 100 attendees at ARBURG Ltd.’s open house in May, celebrating 100 years of the Hehl company, that adjustments covering eight steps of the entire moulding process can achieve savings of £ thousands per year, depending on the installed machine base and the measures taken.

Using peripherals, the design and choice of temperature control units can also affect total energy usage. The configuration of the machine for different purposes and volumes will consume energy very differently. It depends on the machine technology; hydraulic, servo-hydraulic or electric. High volume packaging typically requires a lot of energy due to the constant closing/injecting/opening, whereas low volume parts usually need more cooling time during which, with a servo-hydraulic machine, almost no energy is consumed (the pump idles during holding pressure). So, for packaging, an electric versus servo-hydraulic machine will register much higher energy-saving, but this difference is smaller for low volume work.

Want to know how to save hundreds of pounds in energy by simply optimising your machine and processes? There are eight steps to running the most energy-efficient moulding machines as Lukas Krueger, Applications and Industries Manager at ARBURG, explained to guests at ARBURG’s Open House to celebrate 100 years of the Hehl company on 17 May.

Although it may sound obvious, programming the optimum settings on the machine controller can reduce energy costs, sometimes very significantly. These settings include the mould locking force, dosing time, injection speed, the mould temperatures, and the cylinder and runner temperatures. Here, arburgXworld Control FillAssist can help the user reduce rejected parts and create more stable production conditions (temperature, pressure, injection speed) that together produce the most efficient shot for the application. These settings are crucial – contact ARBURG to find ways to help you select the most energy-efficient settings that don’t affect performance.

Firstly, choose the right material, maintain tolerances suitable for plastics, and look to reduce wall thickness and material quantity. Then, energy can be saved by insulating the mould and clamping platens, tubes and even hot runners, if these are used. You can adjust the tube sizes and measure the energy consumption to find the most efficient tube size. Next, cooling in the mould can be modified to use water more effectively. An efficient design and close contours can reduce cooling time, cutting energy in the water pump.

The enduring appeal of ROBOSHOT, alongside FANUC's long-standing experience and continuous innovation in the field of injection moulding, will receive a full showcase at the FAKUMA 2024 exhibition in Friedrichshafen (15-19 October). At its booth, FANUC is set to present the latest solutions in injection moulding technology and automation, with particular focus on sustainability, energy efficiency, compact design, reliability and the industry's lowest total cost of ownership (TCO).

To help users maximise the available savings, ROBOSHOT machines feature a power consumption screen as standard. This includes an energy analysis page to identify where energy consumption takes place during the cycle, aiding optimisation. Further features contributing to low TCO include reliability and machine uptime, while low wear, simple mechanisms with less components, and high spare part availability are among many supporting factors.

The arburgXworld customer portal gives you access to a wide range of digital apps and features that make your daily work easier.

Automatic and staggered switch-on: ARBURG’s software calculates the best moment during a start-up process each component is switched on, so everything reaches peak performance at the same time, just before starting production. Switching on all components together creates high peak loads and components can be heated up and ready to go while other areas need several more minutes to reach optimum temperature.  One very common problem for energy loss in plants is compressed air leaks. At 12 bar pressure, a 10mm diameter hole in the system can lose the company £640,000 a year at 40p p/kWh. Leak testing and repairing your air source will reduce energy bills. The message is to check every stage of the entire process chain for sub-optimal set-ups and amend them where possible.

For reliable performance, a slimline design and an unbeatable price, there is only one choice: the new ALLROUNDER 720 E GOLDEN ELECTRIC!

For reliable performance, a slimline design, and an unbeatable price, there is only one choice: the new ALLROUNDER 720 E GOLDEN ELECTRIC!

ARBURG has made sustainable manufacturing a pillar of the business in the last five years and has a wide range of machinery and software solutions to reduce carbon emissions, mainly covered under the arburgGREENworld suite of technologies. We also now have ARBURG Action Plan Energy, a programme that provides energy advice, usage measurement, retrofitting efficient parts, training and more.

Machine technology is the biggest single factor to reduce energy. Hybrid and all-electric machines are the most energy efficient, closely followed by energy-optimised hydraulic machines. Regular hydraulics, while robust and capable machines, can use twice the electricity of a modern electric machine. Insulate the cylinder heating zones, using full cylinder insulation if possible. When designing cylinder insulation, consider the optimum temperature regulation for your moulding process. ARBURG has run energy usage tests of fully insulated versus non-insulated cylinders and moulds, for different size machines. Energy savings depend on the electricity rate and machine size, varying from £240 to up to £2,280 for an ARBURG 820 S 4000 at 40p / kWh.

ARBURG has extensively tested several different machines with energy optimized technology against a baseline hydraulic machine. Tests compared a 470S (non-servo) hydraulic, 470H hybrid and 470A ALLDRIVE all-electric machine. Comparing the 470S hydraulic, the ALLDRIVE “Comfort” saved 40,200 kWh per year, based on extrapolated reading energy readings. At the cost of 40p p/kWh this equated to £16,800 savings per machine in a year. A 10-machine shop, with identical machines, could therefore save over £160,000 in a year. Such huge savings would normally only apply where an older hydraulic machine is replaced by a new modular electric machine such as an Alldrive/Golden Electric.

Beyond the machine, peripherals and process settings, planning your production properly, considering energy management, can also save you money. Typically, a commercial energy contract specifies in advance how much energy you need and what you’ll pay for. Exceeding the band can incur a higher kWh rate, so it is important to know your maximum peak load. The user can have an excess or higher capacity supply in place, but this facility will cost more even if it is not used. “It really pays to switch on all your machines in a sequence and having energy management on each machine to spread the electricity load over time,” says ARBURG Ltd. Sales Director Nicolas Stein.

Benefit from our expertise and lower the costs for your injection moulding production by optimising your energy requirement.

The market's most competitive TCO, underpinned with a highly sustainable all-electric operating platform, makes FANUC a futureproof technology partner for injection moulding processes. Advanced servo technology and an intelligent energy recovery system, means ROBOSHOT users experience reductions in electricity consumption of up to 70% compared with hydraulic injection moulding machines (and 5-10% less than other electric injection moulding machines). Moreover, tasks like oil treatment and disposal become a thing of the past.

Artificial intelligence (AI) is the heart of latest a-iB series ROBOSHOT. The injection unit, for example, includes AI metering that uses torque (rather than speed) control to compensate for changes in materials viscosity such as drying conditions and variations in regrind. In addition, FANUC AI mould and ejector protection avoids mould damage and costly repairs/downtime if an event occurs during the opening and closing cycle. It even indicates when greasing is necessary or if the mould is showing signs of wear. The same technology also protects the ejector's forward and reverse movement.

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