Nissei ASB South Africa - Injection Stretch Blow Moulding Machines in South Africa.
ASB is now the world's leading maker of "One-Step" machines with subsidiaries in the United States, Brazil, Mexico, the United Kingdom, Germany, India, Singapore and China. These offices, together with business bases in Spain, Denmark and Indonesia, provide sales, and after-sales service to support the activities of a worldwide team of agents. With the world's leading share of One-Step Injection Stretch Blow Molding Machines (5,000 machines/10,000 molds delivered to 100 countries), the history of PET containers is the history of ASB. Today, our machines and molds are able to produce PET containers with advanced features such as Heat Resistance, Heat & Pressure Resistance, containers with Barrier Properties, and more. Equally important, ASB's global manufacturing, sales and service network ensures prompt response to your every question and service need.
Best seller entry machine, more than 2,000 units sold worldwide.
The ASB-50MB is a 1-step injection stretch blow molding machine, capable of producing containers directly from resin. Originally conceived as a low-cost entry machine for developing countries, this fully automatic machine has rapidly become one of our best sellers, even in many highly developed markets. In accordance with customer requirements, the specifications have been continually upgraded giving improved versatility and productivity. Over 2,000 units have now been delivered by our overseas factory in the machine's first nine years of production.
Best energy efficiency in its class, excellent versatility, low-noise.
The ASB-12M has been developed as a step-up model from the entry level ASB-50MB, which has sold more than 2,000 units and remains in our line-up as one of our best sellers. It is a compact 1-step injection stretch blow molding machine with improved jar capability and higher cavitation for many common bottle sizes. It incorporates advanced technology providing class leading energy efficiency.
Compact, Versatile, Efficient.Best selling model from the ASB series.
The ASB series are 1-step stretch molding machines with excellent molding flexibility supplying the greatest cost efficiency for their users. The ASB-70DP model range can trace its origins back to 1986 and with continual improvements now exists as the ASB-70DPH v4 and ASB-70DPW v4. Compact, flexible and efficient, the ASB-70DP series are the best selling machines in their class with over 1,700 units having been delivered to our customers all around the world.
Unique 1.5-step machines, leading the PET bottle molding industry with their exclusive concept.
Integrating the strengths of the “Hot Parison” 1-step molding method and the “Cold Parison” 2-step molding method, ASB developed the 1.5-step “Cool Parison” method. This revolutionary container production system employed by the PF platform gives you the best of both worlds in one incredibly flexible, efficient and powerful unit. With its high productivity and excellent cost performance, it can produce bottles of all conceivable shapes and has the ability to mold bottles with minimal neck support ring. Ideally suited for bottles in the 1.5L up to 3L range.
High output 1.5-step PET molding up to 9,000bph*.A true competitor to small scale 2-step molding
ASB's innovative PF series gains a new brother which can go toe-to-toe with 2-step re-heat molding system. The PF24-8B lowers the cost of production both in energy terms and in factory space. Among the PF ranges, this model's unique point is that it can be converted to mold in a 12-4 configuration for bottles up to 5L capacity offering even greater flexibility.
Nissei ASB Machine Co., Ltd. (Head office: Komoro-shi, Nagano-ken, Japan - President: Daiichi Aoki), a world leading manufacture of machines for injection stretch blow molding of PET and other plastics, will exhibit at the Drinktec 2017 exhibition (Hall A4.322), to be held in Munich, Germany from September 11th to 15th 2017. Live molding will be demonstrated on ASB’s 215 square meter booth together with a display of some of the most interesting recent updates in injection stretch-blow molded packaging technology.
Held every 4 years in Munich, Germany, Drinktec provides the role of world economic summit for the beverage and liquid-food industry. As such, in its role as world leader in one-step molding technology Nissei ASB takes great interest in not only monitoring but also in contributing to the industry trends on show at the exhibition. In 2013, the exhibition saw a 14% growth in attendance over the 2009 event with 66,880 visitors from 183 countries to view exhibits from 1,433 companies representing 76 countries.
ASB-150DPX triple row blow-mold system visible at left side
At Drinktec 2017, Nissei ASB will be debuting its ASB-150DPX model with daily live molding demonstration of a complete molding system.
The newly developed ASB-150DPX expands the company’s flagship ASB-150 based models to three variants;
ASB-150DP – Single row molding up to 16 cavities, for very large bottles and jars
ASB-150DPW – Double row molding of medium sized bottles and jars up to 32 cavities
ASB-150DPX – Triple row molding of small bottles in 36 or 48 cavities
All models are built on a common architecture so factory layout, key functions, spare parts, maintenance and operator training are common to all, however the newly added DPX model has specific design features to maximize efficiency in small container molding;
1. Injection clamping stroke is optimized for short cycle small containers.
2. Upgraded hydraulic components provide faster cycle of injection clamping while maintaining smooth machine movement.
3. Servo hydraulic pumps offer up to 30% reduction in energy consumption.
4. Blow air circuit is optimized for small container production offering up to 50% reduced air consumption over standard systems.
Although these features were introduced for the ASB-150DPX, items 2, 3, and 4 are also planned to be available in future updates of its stable-mates ensuring that the entire model range maintains its lead over the competition.
ASB-150DPX triple row product eject station.
This introduction of triple row one-step injection stretch blow molding is another in a long line of global firsts that Nissei ASB has achieved throughout nearly 40 years at the forefront of the PET container industry, with several areas of the machine design having patents pending or already approved.
At Drinktec, the ASB-150DPX will be conducting daily molding demonstrations of a 100ml, 5.3-gram yoghurt drink container. This lightweight container design requires a very short preform that would be impossible to handle and re-heat in a two-step system so the one-step molding process, where the container is formed directly from resin within one machine and held securely by its neck throughout, is the only practical choice. The smaller the container is, generally the more advantageous it is for production using a large one-step machine with high outputs.
With its triple row molding layout allowing 36 blow cavities, and at a cycle time of 6.4 seconds the ASB-150DPX will achieve a production rate in excess of 20,000 bph. Even if a container design such as this could be molded by re-heat blow molding, the required floor area for a similar capacity two-step production unit is typically 3-4 times greater, so this one-step solution provides not only technical superiority and enhanced quality, but manages to achieve it in a significantly reduced production space.
With the recent rise in prices of PE/PS materials, demand for PET conversion of this type of small container is increasing with numerous specific inquiries from major food manufacturers so the company is confident of good demand for this new model.
The exhibit will also be demonstrating a full line of matched molding ancillary equipment that ASB is able to supply, such as resin dryer, chiller, mold dehumidifier and mold temperature controllers. An in-house custom designed pick and place take-out unit with conveyor system will also be demonstrated allowing prospective customers to easily install the molding machine up-stream of a filling line.
Live molding of lightweight PET yoghurt drink containers at Drinktec 2017
NISSEI ASB MACHINE CO., LTD.
NISSEI ASB MACHINE CO., LTD. is a major stretch blow molding machine manufacturer for the production of plastic containers including PET bottles.
Head Office Address: 4586-3 Koo, Komoro-shi, Nagano-ken, Japan
Foundation: 8th November 1978
Employees: 1,679 staff (Consolidated: September 2016)
Capital: 3.8 billion Japanese yen
Sales: 25.5 billion Japanese yen (Consolidated accounting: September 2016)
Nissei ASB Machine Co., Ltd. (Head office: Komoro-shi, Nagano-ken, Japan –Representative director: Daiichi Aoki), a world leading manufacturer of machines for one-step injection stretch blow molding of PET and other plastics, will exhibit at the IPF 2017 exhibition (Booth 72202), to be held at Makuhari Messe, Japan from 24th to 28th October 2017. Live molding will be demonstrated on ASB’s 250 square meter booth with two machines together with a display of some of the most interesting recent updates in injection stretch-blow molded packaging technology.
Held every 3 years in Chiba-Prefecture Japan, the IPF exhibition is Japan’s premiere event for the plastics and rubber industry. In 2014 the fair attracted 43,000 visitors with nearly 10% coming from 45 overseas countries. Over 770 exhibitors participated from a total of 27 countries with 81% reporting that the exhibition provided either good or very good sales promotion results. Forecasts for 2017 estimate that attendance of exhibitors and visitors is expected to rise by around 4-5% over 2014 levels.
Two machines will be making live molding demonstrations. In direct contrast to the oft-seen “concept molding” approach of unrealistic weight and cycle times that cannot be reliably converted into actual production, ASB will be focusing on highly efficient, stable molding of premium quality products that are optimized for the real-life production environment.
Nissei ASB will be presenting an update of its hugely popularASB-12M model (prototype) for small container molding. The revised version now making its global debut in corporates an all-new control and interface system that offers significant advantages to users;
In the future, more convenient functions for users listed below will be supported.
The new version maintains all of the capabilities for production of a vast range of PET containers, including highly efficient light-weight bottles and wide mouthed jars, to the highest quality while providing very low total cost of ownership. Key features include;
In addition, the model displayed at IPF will be fitted with the optional long stroke injection unit that provides a 50% increases in available shot-size, expanding the scope for large containers, heavy-weight cosmetic bottles, or materials such as polypropylene that have lower density.
All of these benefits make it an ideal platform for a start-up company looking to make future-proof investments into an ever changing market, or for larger companies wishing to exploit niche markets where higher margins are to be found. With its full featured specification, it also makes an ideal laboratory machine for R&D work and pilot molding before committing to much larger multi-cavity systems for major projects.
At IPF 2017 the machine will demonstrate molding of a 31 gram, 46ml premium quality cosmetic bottle featuring an average wall thickness of 2mm giving it a glass-like feel and appearance. Despite the high weight, the advanced four cavity family mold will output over 1,000bph - around 50% higher than similar quality production from competitors’ machines.
The ASB-70DPH is a mid-range one-step injection stretch blow molding machine that offers extreme molding versatility in a “just-right” size with competitive investment costs and low cost of ownership. It utilizes ASB’s renown 4-station molding process to achieve optimum molding efficiency and stability of a wide range of molding materials. It has remained a long-term industry’s best seller in its class for a variety of reasons;
The machine specification will feature ASB’s optional servo-driven hydraulic system that achieves extremely low power consumption. In tests using the same molds, an energy consumption reduction of 40% was achieved compared with the standard pump equipped model, and approx. 64% reduction compared with the previous generation ASB-70DPH v3.
The product to be molded is a six cavity 60 gram, 500ml shampoo container in a family mold featuring heavy engraving for a premium quality look and feel that is typical for the Japanese market. The output of just over 1,000bph is again exceptional for a container of this weight and quality and perfectly demonstrates the advantages of one-step injection stretch blow molding for versatile molding requirements.
Interested visitors may also view a full line of matched ancillary equipment that ASB is able to supply for all its models, such as resin dryer, chiller, mold dehumidifier and mold temperature controllers. Each machine will also be equipped with ASB designed pick and place take-out units with conveyor system allowing prospective customers to easily install the molding machine up-stream of a filling line.
Telephone +27 12 345 4924
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Nissei ASB Machine Co., Ltd. (Head office: Komoro-shi, Nagano-ken, Japan - President: JunichiMiyasaka), a world leading manufacture of machines for injection stretch blow molding of PET and other plastics, will exhibit at the NPE 2018 exhibition (Booth S19045), to be held in Orlando, USA from 7th to 11thMay 2018. Live molding will be demonstrated featuring five machine models together with a display of some of the most interesting recent updates in injection stretch-blow molded packaging technology.
In 2015 the NPE exhibition set new records by attracting 2,029 exhibitors from 37 countries in a floor area of more than 104,000sq.m. More than 65,000 registered visitors attended, showing a 19% growth over the previous exhibition. Most importantly, the quality of the visitors is traditionally very high with the majority representing their respective companies as senior management with strong decision-making power. In 2015, 44% of exhibitors and 26% of visitors were from overseas.
As the largest plastics exhibition in the Americas, and the US economy showing strong growth, NPE 2018 is expected to exceed the records set in 2015 making it one of the most important marketing events for Nissei ASB to attend.
Reflecting consistent sales growth over the last 3 years, ASB will represented by its largest ever presence at NPE with a 740-square meter booth and five different machine models making live molding demonstrations molding a variety of products that showcase the versatility of the company’s technology and integration with the Internet of Things.
Featured models will include;
The booth will also be exhibiting a full line of matched molding ancillary equipment that ASB is able to supply, such asresin dryers, chillers, mold dehumidifiers and mold temperature controllers. In-house custom designed pick and place take-out units with conveyor systems will also be demonstrated allowing prospective customers to easily install the molding machines up-stream of otherprocessing equipment or a filling line.
All models will be operating on a daily molding schedule and the booth will include a wide range of samples and displays of other specialized technologies from ASB.
Detailed descriptions of each of the featured models can be found on the following pages. Additional high-resolution images are also available separately.
The ASB-12M, first launched in 2012, has been hugely successful as an entry level and niche market model that provides a scalable and highly versatile manufacturing solution withextremely low energy consumption.Now in 2018, ASB is launching a revised edition that maintains the solid mechanical design and energy conserving servo-hydraulic system,and adds an all new control system operating to the Industrie 4.0 computerized manufacturing standard allowing factory integration via the so called, “Internet of Things”.
The v2 machine will be demonstrated molding a 4 cavity, 40ml premium quality thick walled cosmetic container in a family type mold of two differing designs. With a weight of over 31 grams, the resulting PETwall thickness of 2mm perfectly simulates the high-grade appeal of glass– but most notable is the cycle time improvement for this class of heavyweight container from a typical requirement of 40+ seconds down to an outstanding 13.4 seconds resulting in a three-times increase in productivity.
Normally, molding a container of this thickness at this incredible cycle time would require the use of specialized or expensive resins to avoid haziness from crystallization. But,designers at ASB have taken full advantage of the preform conditioning station, that only exists in ASB’s four station molding machines, to create a(patent pending) system that modifies the preform’s temperature profile, shape and thickness prior to its transfer to the blow station.In this process, the molding of containers at this cycle time is perfectly stable with excellent clarity using standard PET resin making it suitable for use in real-world manufacturing situations.
While the majority of cycle improvement comes from the intensive use of the conditioning system in the second station, the dry cycle time and operational movement of the machine has also been improved by the addition of a next-generation computerized control and interface system that offers significant advantages to users;
Despite the small size of the machine, it has a vast range of capabilities for production of all types of PET containers including highly efficient light-weight bottles, and medium sized jars. The ASB-12M’s popularity is further enhanced by its ability to process a wide range of non-PET resins combined with very low total cost of ownership.
Key features include;
In addition, the model displayed at NPE will be fitted with the optional long stroke injection unit that provides a 50% increase in available shot-size, expanding the scope for large containers, heavy-weight cosmetic bottles, or materials such as polypropylene that have lower density.
These benefits make it an ideal platform for a start-up company looking to make future-proof investments into an ever-changing market.
The ASB-70DPH is a medium sized, four station one-step injection stretch blow molding machine which can produce containers from PET and a wide range of other resins.
It has a long production record, with its extreme molding versatility and continually updated specifications it continues as one of ASB’s best-selling models, with current sales of over 2,100 units.
Already supremely versatile in its standard form, the ASB-70DPH is also available with a wide range of options that allow global users to further adapt its capabilities to cater to their local market needs.
Key to the success of this model are its many standard features;
At NPE, the ASB-70DPHv4 will be utilizing a set of options that further increases its already formidable versatility;
The machine will be demonstrated molding a 700ml Copolyester (Tritan) 90 gramsre-usable drinking flask in a four-cavity family mold at a cycle of 14.4 seconds.The design of the container has been carefully selected to show off the superb visual quality that is only achievable with the one-step molding process.
Making its debut on the American continent at NPE 2018, Nissei ASB’s triple row, high output ASB-150DPXmodel for small bottle production will demonstrate the latest in a long line of world firsts that the company has achieved throughout nearly 40 years at the forefront of the PET container industry.
The recently developed ASB-150DPX expands the company’s flagship ASB-150 based models to three variants;
All models are built on a common architecture so factory layout, key functions, spare parts, maintenance and operator training are common to all, thereby reducing total cost of ownership for users of more than one model type.
In addition, the newly added DPX model has specific design features to maximize efficiency in small container molding with several areas of the machine design having patents pending or already approved;
Although these features were specifically developed for the ASB-150DPX, many of them are also planned for future updates of its stable-mates ensuring that the entire model range maintains its lead over the competition.
At NPE, the ASB-150DPX will be conducting daily molding demonstrations of a 50ml, 10.5-gram liquor miniature bottle in an unprecedented 48 cavities mounted in a triple row molding layout. With a cycle time of 8.6 seconds the machine will operate at a production rate in excess of 20,000 bph.
This container design requires a very small preform that would be impossible to handle and re-heat in a two-step system so the one-step molding process, where the container is formed directly from resin within one machine and held securely by its neck throughout, is the only practical choice. The smaller the container, the more advantageous it is for production using a large one-step machine with high output.Molding the container on a one-step system also provides superb visual quality and ensures that the neck remains free of any scuffing or damage that could compromise the neck seal.
Even if a container design such as this could be molded by re-heat blow molding, the required floor area for a similar capacity two-step production unit is typically 3-4 times greater, so this one-step solution provides not only technical superiority and enhanced quality, but manages to achieve it in a significantly reduced production space.
The machine has already generated strong interest in the dairy sector for products such as flavored milk and yoghurt based drinks where it will typically mold lightweight containers in 36 cavities. In its 24-cavity configuration the machine is capable of molding round or oval containers up to 300ml with a 38mm neck which also makes it ideal for single serving juice or water bottles.
The HSB-2M/6 is a 2-step, re-heat stretch blow molding machine featuring ASB’s unique double-blow heat-setting process and expands the range of models in the HSB series, with the capability to mold 6 cavities of 1-liter jars with thread diameter up to 86mm.
These models have been developed specifically for the production of wide mouthed hot- fillable&pasteurizable jars, ideal for many foodstuffs including pickles, jams, marmalade and a wide range of sauces. They utilize the same tried and trusted double-blow technique used in the HSB bottle production machines, so high container performance is assured.
Preforms can either be molded in-house using one of ASB’s PM Series preform injection molding machines, then processed by a CM Series neck crystallizer, or for those users wishing to minimize capital investment, customized preforms can be supplied direct from ASB to anywhere in the world.
To optimize the process efficiency, molding can be adjusted to apply almost any degree of heat resistance to a PET container as required by the filled product. However, as the 2-step double-blow heat-set process of the HSB-2M/6 can achieve heat resistance all the way up to the practical maximum of PET – approx. 95°C with a suitable container design and cap – it is extremely effective for those projects that exceed the capability of other heat-setting processes.
With fully electric mold clamping, the machine is smooth, quiet and energy efficient and for added flexibility, with a simple change of blow mold and a suitable preform it is equally capable of molding standard (non-heat resistant) PET containers.
At NPE, the HSB-2M/6 will be molding a 500ml jar with an 80mm neck suitable for a metal, twist-off lug type closure designed for filling at 88°C. With a 6-cavity configuration, the 4.5 second cycle offers an output of 4,800 bph. The container features a panel-free design where the body is plain round for easy labelling and internal vacuum forces generated by cooling products are absorbed by a patented base design that flexes during filling, heating and cooling to ensure no distortion in the labelled area.
Use of the industry standard metal lug-type cap is essential to provide current filling companies with an easy change-over route to PET, but it exerts uneven force on the neck that could cause problems with distortion or leakage. However, with the use of a crystallized neck and ASB’s advanced molding techniques the jar passes all tests with ease.
The demonstrated jar has been specified to satisfy a practical filling requirement for cheese sauce;
This filling process is typical for sauces such as cheese dip that have a high viscosity, the elevated temperature allows faster filling with no voids in the contents. Higher viscosity products such as these place a higher heat load on the container during the cooling phase as convection currents cannot form to aid cooling, however the advanced and stable heat resistance achieved by the HSB double-blow molding technique assures satisfactory container performance.
The HSB-6N machine performs double-blow re-heat stretch blow molding in a compact solution for heat resistant PET bottles with neck diameter up to 38mm. Preforms with either amorphous or crystallized neck may be molded with equal ease, the choice of neck type depends on factors such as neck and cap design, container filling, pasteurization and cooling specifications.
To optimize the process efficiency, molding can be adjusted to apply almost any degree of heat resistance to a PET container as required by the filled product. However, as the 2-step double-blow heat-set process of the HSB-6N can achieve heat resistance all the way up to the practical maximum of PET – approx. 95°C with a suitable container design – it is extremely effective for those projects that exceed the capability of other heat-setting processes.
With fully electric mold clamping, the machine is smooth, quiet and energy efficient and for added flexibility, with a simple change of blow mold and a suitable preform it is equally capable of molding standard (non-heat resistant) PET containers.
At NPE, the machine will be demonstrated molding a heat resistantPET beer bottle that meets the standard industry requirements of 65°C contents temperature, to be maintained for 15 minutes to fully kill off any remaining yeast and provide long stable shelf life with no apparent flavor change. Despite this relatively low temperature of pasteurization, a combination of long processing time and carbonation pressurecreates additional forces on the container that can only be adequately handled by the double-blow heat-setting process in combination with the 36.5 grams weight. It can be molded in standard PET, or where required, oxygen scavenging or carbon dioxide retention additives can be included to further enhance the shelf life.
The demonstrated 650ml bottle will be molding at a cycle of 4.5 seconds producing 4,800bph and thefeatured container uses an industry standard neck suitable for crown caps, but could be molded to any required standard.
The container specification adheres to the standard industry bottling process for pasteurized beer;
The HSB-6N offers an ideal solution to converters and fillers of all types of bottled beverages that require a versatile, small to medium output machine that provides the highest heat resistance PET containers currently available in the industry.
Building on the success of the PF24-8B 1.5 Step Injection Stretch Blow Molding machine first launched at K2013 in Düsseldorf, Nissei ASB recently debuted the first of its new PF36 Series at China Brew & Beverage 2018 in Shanghai. The new model line-up extends the range and capabilities of the platform providing higher productivity and even greater efficiency
Traditionally, PET bottles are made either by the 1-step or 2-step molding processes. In the 1-step process, containers are molded directly from PET resin in a single injection stretch blow molding machine where the residual heat from injection is used to allow blowing of the bottle. In the 2-step process, raw material is first injection molded into preforms which are then stored or transported at room temperature before being re-heated and blown into the finished container by a separate stretch blow molding machine. Depending on the container type and local market conditions, each process has its own merits.
As the world’s leading one-step machine manufacturer, ASB recognized the merits of each system and, in 1995, combined them into a pioneering molding system that became known as 1.5-step molding. In this process, preforms are injected in a greater number of cavities, partially cooled to maximize stability then temperature conditioned before being passed to a blow mold containing 1/3 the number of cavities of the preform mold.
Since it normally takes around three times longer to injection mold a preform than to blow a bottle, this means that each part of the machine operates at maximum utilization and investment costs for blow molds are reduced.
In this latest iteration of the successful family of PF Series of machines, preforms are injection molded in batches of up to 36 then partially cooled to provide a stable starting point for the rest of the process. Preform temperature is then raised and optimized in a continuous flow heating oven before being passed to the blowing station for re-heat stretch blow molding.
The result is an extremely compact bottle molding machine that operates at high efficiency and produces the highest quality of finished bottle because, as in the one-step system, preforms are never released,eliminating risk of scuffing or neck deformation. To achieve the same output by two-step molding at least 2-3 times the factory floor area would be required, product handling costs are increased, and the container visual and neck quality would be significantly lowered.Additionally, by blowing the bottle within the same machine that molds the preform, risk of contamination is eliminated, and the hygiene of the bottle is assured, making the machine ideally suited to an in-line filling operation for beverage products. The model shown at ChinaBrew was the PF36/36-600 denoting that it molds 36 preforms per cycle and is capable to mold bottles up to 600ml capacity. Blow molding is carried out by an integrated 12 cavity linear blow system that operates three times per injection molding cycle.
Other models built on the same platform include;
There are also systems currently under development at ASB that will use the same molding principle for PET bottles up to 20 liters capacity.
Compared to the previous PF24 model, the new PF36/36-600 has a footprint that is just 30cm longer but increases productivity by around 50~80% from around 9,000bph up to 14,000~17,000bph dependingon the container specification. Part of that increase comes from increased cavitation, but dry cycle time has also been significantly reduced in the blow station, while further developments in preform cooling have seen reductions of up to 30% in injection cycles over previous models.
At CBB2018 the machine was demonstrated molding a 500ml, 8-gram water bottle at 14,500bph. This weight represents the lightest practical weight in this class of container and highlights the continual efforts by ASB to reduce the impact of plastics on the environment as well as providing its customers with the most cost-effective molding solutions.
The injection unit and injection mold clamping are hydraulically operated, utilizing low energy consumption variable displacement pumps, but downstream from there all major movements are driven by servo motors including the blow mold clamp and stretching, while pneumatic operation is reserved for the small and simple motions.
The resultis a remarkably low actual energy consumption of just 66kW to mold a 500ml bottle at an output more than 14,500bph which makes it highly economical considering that this is total power requirement for full conversion from raw material to finished product. Further energy savings are achievable at the air compressors with an optional blow air recovery system.
With the linear blow molding system operating at three times per injection cycle, for small light weight bottles where theoretical output may exceed 17,000bph the linear blow system may need to operate at sub 2.5 second cycle times. In combination with the servo driven systems, ASB’s recently introduced Vision1 machine control system provides high speed, smooth and synchronized control of multiple movements that enables these cycle times to be easily achieved while ensuring incredibly low noise and vibration.
Where light weight preforms are being molded in short cycle time, the screw charging recovery can be a limiting factor on minimizing cycle time, so as a countermeasure, a holding pressure cylinder is mounted on the front of the injection barrel that maintains pressure within the cavity, allowing screw recovery to occur simultaneously thus ensuring the shortest possible cycle time is achieved.
In the case of high shot weights combined with short cycle times a more advanced injection unit using a two-stage (shooting pot) design may be utilized. Both of these systems provide gentle plasticization of the material at high throughputs to ensure molded products are of the highest possible quality.