Fully electric: JT The vertical machines from 400 to 2,200 kn
A competent partnership with JSW Oldenburg Auetal Neuss Heidelberg Hanau Frankfurt Herzogenaurach Ulm Since 2007, WINDSOR has been the official sales partner of Japanese machine manufacturer JSW; a thoroughly innovative and successful company with more than 50 years experience in constructing hydraulic injection moulding machines as well as over 20 years of experience in building fully electric injection moulding machines up to series J-ELIII and J-AD. Cooperation between JSW and WINDSOR is the logical answer to covering our target market as JSW offers the full range of entire electric injection moulding machines with closing forces from 350 to 25,000 kn. WINDSOR manages the sales and service network; the logical precondition for global market success. We offer everything from commissioning and preventative maintenance up to application related support as well as product and process optimisation for profitable, globally competitive injection moulding. Switch to electric and invest in the future! The injection moulding machine with electric motor drive, i.e. without hydraulic system, was developed in Japan at the beginning of the 1980s. Two decades later, electric machines are already clearly dominating the injection moulding machine market; not just in Japan and throughout Asia (which makes up over 70 % of the market share), but in Europe as well where over the last few years the turnover has been growing strongly. JSW injection moulding machines offer an ideal price-performance ratio. 1
The advantages of JT injection moulding machines The outstanding properties of the innovative fully electric JSW JT vertical injection moulding machines Low table height The table height was reduced to achieve a low operating and inserting level, which makes work much easier for the operator and simplifies things for inserting systems. On a JT40RAD-55V, the table height is 894 mm; this is 146 mm lower than on conventional machines. Compact and stable design Machine width and placing surface were greatly reduced meaning that the machine is now very well suited for use on assembly belts. The placing surface was reduced by 18% in comparison to conventional models. Larger injection moulds Although the machine width is more compact, the external diameter of the revolving tables corresponds to that of conventional models: Optimising the nozzles makes is possible to install larger moulds, apart from which the machine is in a position to work with larger and more complex dies, with e.g. jaws and slides. Quick table rotation Quiet and quick table rotation (the best in this industrial sector) was achieved by using a high-performance servo motor with belt drive to increase productivity. Fast mould opening Quick opening and closing of the mould is facilitated by the new closing mechanism design. This design with optimised toggle lever kinetics reduces the moving masses of the closing unit. Fast servo control processes Quick control circuits and feedback in microsecond cycles make it possible to create optimising functions aimed at improving process reliability and reproducibility for the highest possible quality of parts. Rentability An investment in electric injection moulding machines will pay itself off quickly thanks to an increased yield in quality parts and the savings made on service fluids as well as in the economic use of energy, resources and maintenance. Modular power concept Continuous modularity for tailor-made, practical and cost effective solutions. A mechanical stop at the end of the table rotation improves repeatability accuracy in respect of end positions. This facilitates continuous production processes by avoiding the shifting of inserted parts (the table turns by moving back and forth by 180 degrees). Generously proportioned high-performance ball screw sets guarantee exactly reproducible quick closing and opening, as well as high operating lives. The supply of tempering media to the bottom mould halves on the revolving table and the supply of electric power to the hot runners can be controlled via corresponding processes (optional). 2
Control concept Operating terminal with SYSCOM control Ultra-quick signal processing and high reproducibility of process parameters lead to a shortening of the cycle time and an increase in productivity. 15" TFT touchscreen colour monitor with exceptionally detailed display of injection parameters as well as data and graphics in real-time. Menu fields for easy entry of parameters. Support and clarification texts through selection fields. Uniform operating interface for all models. Back-up of data on an internal memory or on an external USB memory stick. Interface through USB port and LAN port. SPC analysis function Quality control including monitoring of tolerances and alarmmanagement. Specific JSW control and regulation functions Process optimisation Quick control circuits and feedback in microsecond cycles make it possible to create optimising functions aimed at improving process reliability and reproducibility for the highest possible quality of parts. Holding pressure Holding pressure switchover point Inject Pressure Injection pressure/speed Damping factor suppressed Speed Screw position The "Soft-Pack servo" control suppresses the increase in pressure before the switchover point avoiding overspray with a quicker injection speed, which also keeps the part weight very consistent. 1st holding pressure stage Dynamic pressure curve of conventional control Dynamic pressure curve with predicted metering control Screw speed Screw torque Screw retraction Metering process 0 4.0 8.0 12.0 16.0s Metering time Screw position The predicted metering control reduces the metering speed in a controlled way at the end of metering to avoid fluctuations in the dynamic pressure before screw retraction. Holding pressure switchover point Holding pressure switchover occurs as soon as the injection speed has dropped to the holding pressure speed. Injection speed Injection pressure 0.6 0.3 Holding pressure time (s) 250 200 MPa mm/s 125 100 Screw position With "before holding pressure deceleration" control, the injection speed is reduced in line with the value of the first holding pressure stage already before reaching the holding pressure switchover point. IWCS metering and cushioning stability The IWCS control (patented Injection Weight and Cushion Stability) maintains the dynamic pressure after metering and the density of the melt in the screw antechamber, thereby considerably minimising shot weight fluctuations. Dimensional variation in cushion (mm) Dimensional variations in the cushioning control 0,30 0,25 0,20 0,15 0,10 0,05 0,00 conventional control PBT PA6 Highflow-PP IWCS control Pre-injection and moulding functions There are different processes available for pre-injection and moulding functions. These enable optimum mould breathing and stress-free quality injection moulding. A-mode A1 - A6 (A7 option) Setting values for pre-injection and moulding functions A7 mode: mould breathing sensor Feedback signal (optional) SYSCOM3000T (Servo amplifier) Activation signal Mobile platen Close B-mode B1 and B3 Inject Mould opens by injection pressure. Compress up to 6 steps A1-A6, B1, B3 mode: Encoder feedback signal Servo motor Cross head Ball screw Stop before platen contact Inject Compress up to 6 steps 3
User friendly and convenient Saves on space with good accessibility Three doors give optimum accessibility to all functional areas of the JSW JT vertical injection moulding machine. The front area is secured by a light curtain. The toggle lever kinematics designed specifically for servo-motor drives permit quick and dynamic closing and opening speeds. Comparison of closing / opening speeds Closing/opening time (s) 4,0 3,0 2,0 1,0 0,0 JT40REL (prototype model) reduced by 21% JT40RAD Modular power concept Various modular combinations for bespoke machine configurations with stationary or revolving table. A wide selection of injection units and a versatile control system for increased productivity. The specifications for injecting with a high acceleration capacity (HR) and at high speed (HS) are essential components of the modular, application oriented machine concept. For the best equipment selection and optimum adjustment to the products being manufactured, including micro and thin-walled injection moulded parts. Modular JT vertical machine concept Model with stationary table 20V 55V 110V 230V Injection unit Model with revolving table 20V 55V 110V 230V Injection unit M40 M70 M100 X X X X X X Closing unit M20R M40R M70R M100R M150R X X X X X X X X X The stationary table models are in the planning stages Note: High-speed (HS), high-response injection (HR) are intended for injection units marked with an X Closing unit All models marked preparation stages. -233 Compact, stable design, low table height 4 JT40REL-55V (Vorläufermodell) 1040 3083-146 JT40RAD-55V 894 2850 Abmessungen in mm The JT injection moulding machines are quicker, more precise, more compact and more stable. They are easy to Comparison of rotation speeds operate and can be easily integrated into 1,4 manufacturing cells. 1,2 Low machine and table reduced by 29% 1,0 heights reduce the 0,8 level of adjustments 0,6 required, increase 0,4 structural stability 0,2 and enable quicker 0,0 opening, closing and JT40REL JT40RAD (prototype model) Net rotation time rotational movements. Table rotation time in (s)
Services for JSW products: Product specific machine engineering Customer specific project planning Company specific attachments and modifications Application related advice Injection trials at a College of Technology Commissioning Service and maintenance Replacement parts supply Training programme Finance WINDSOR KUNSTSTOFFTECHNOLOGIE GMBH Moselstrasse 27 63452 Hanau Telephone: + 49 6181 9003-0 Fax: + 49 6181 9003-40 Web: www.windsor-gmbh.de E-mail:windsor@windsor-gmbh.de