PRODUCTS

   A) Introduction

    ST-305 is designed and built for the production of grain-oriented laminations suitable for the assembly of electric transformer cores with Step-Lap System and can cover up to a max sheet width of 305 mm.

    Consistently with the transformer design, this machine is particularly suitable for the production of cores for transformer power ratings ranging from 25 to 4000 KVA. 

    The efficient and unique design of ST-305 has received the state patent.  (China)

     Date: 2014/06/25  

     No: ZL201420054538.6  

* Vertical Step-Lap (X Design): 3/5/7 Steps. Upto 4 Holes 

* Hybrid Step-Lap (Y Design): 3/5/7 Steps. Upto 4 Holes 

* Horizontal Step-Lap (Z Design): 3/4/5/6/7 Steps. Upto 4 Holes. 

* 45' Conventional Design ( Basic Design): Upto 4 Holes.   

* 90' Strip Lamination: Upto 6 Holes 

　   Multi step-lap construction is well established as an industry standard where high efficiency transformers (using stacked cores) are required. It allows manufacturers to produce stacked core transformers with the lowest possible no-load loss, sound level and magnetizing currents while simultaneously reducing core assembly times and simplifying top yoke insertion. In short, it helps you (the manufacturer) to be more competitive.

  Multi step-lap cores are highly effective in transformers where a high no-load loss evaluation is attached, particularly on 3-phase units. The no-load loss is usually 3-4% lower than single step lap (2 Steps) and 13-15% lower than Butt-Lap Design. 

   Typically, the payback period for the additional costs associated with high efficiency core designs is short, less than 5 years. When compared with the expected lifetime of a transformer, which is typically between 20 and 40+ years, it is clear that significant financial savings can be made over the transformer lifetime. For more information please refer to "Cogent Multi Step Lap Core Technical Data" 

                 (A2) Speed  

* 43 sheets/minute = 1,548 Kg/Hour  

* Testing Standard: 

  1) ST-305 Speed at 80 (Range: 1-99) 

  2) Side Limb without Hole  3) Size = 800x150mm  4) Thickness =0.30 (M5)  

* Note: Productivity depends on setting and cutting sizes. 

      For more information, please refer to ST-305/420 Speed Performance.pdf  

         B2-0 (Yoke without hole) 

         B1-0 (Side Limb without hole) 

         B3-0 (Center Limb without hole)  

         B2-2 (Yoke with  2holes)  

         B1-2 (Side Limb with 2 holes) 

         B3-2 (Center Limb with 2 holes)   

*  25mm of coil width is the ST-305 minimum processing width, suitable for 25, 50 and 63 KVA transformers. (40mm width is minimum size for most of cutting lines in the market) 

*  305mm of coil width is the ST-305 maximum processing width, suitable for up to 4000 KVA Power Transformers. 

* 10" Weintek (TAIWAN) i-Series Touch Screen. 

* Equipped with ARM9 400MHz CPU 

   Greatly improve data processing and images display. 

* Language: English / Chinese   

                    (B2) PLC (Programmable Logic Controller)     

* Panasonic FP2 Series 

Scanning time of 1ms for 20k steps. With an operating speed at the top of its class, super high-speed processing is made possible. The result is a dramatically decreased tact time and high-speed device. 

                    (B3) Servo Motor      

* 12 Panasonic High-Speed Servo Motors 

Achieves 2kHz - the highest response frequency in the industry. In addition to its advanced control functions, the Panasonic Servo Motor features an LSI chip architecture that enables ultra-fast system operation. In view of its remarkable speed and superb positioning response, the Panasonic Servo Motor suitable for the most demanding systems. Furthermore, its outstanding response times drastically reduce vibration. 

Features a more compact motor that weighs considerably less. Both the large and the compact motor types have been overhauled, and the core has been successfully redesigned and scaled down. The integration of an innovative compact encoder has resulted in a 10% - 25% (1 - 6kg) motor weight reduction in the 1kW-and-larger class compared to conventional motors.

                    (B4) Tungsten Carbide Tool Sets         

* Tungsten carbide cutting tools are very abrasion resistant and can also withstand higher temperatures than standard high speed steel tools. 

Tungsten carbide tools maintain a sharp cutting edge better than other tools, they generally produce a better finish on parts, and their temperature resistance allows faster machining.  

* All cutting tools on ST-305/420 are made by the industry best tungsten carbide that will guaranty 200,000 cuts before next grinding.   ST-305  Tools Set Alloy Testing Report.      

                    (B5) Cutting Units   

* One Hole Punch Unit

       One CNC-longitudinally adjustable hole punch unit provides a high accuracy output.

       (Dia 8 to 35mm / optional ) 

* Two V-Notch Units 

      2V-Notch Units with motorized cross movement on CNC-longitudinally base. 

* One Swing Shear

Japanese SUMITOMO Motion control drives that give zero backlash, minimal lost motion and high torsional stiffness. These reducers excel in applications that demand accurate positioning. Small hysteresis loss. High efficiencies and low vibration. 

 C) Service and Payment Terms 

                    (C1) Overseas Standard Packing 

      India Service Center