film blowing attachment type lf-400 equipped as following:

吹膜附属装置lf-400型

¨       large 2,3 meter high film tower with twin pillars of rigid extruded aluminium profiles. sub cabinet of modern pleasing design, which incorporates the control cabinet as well as the blower for the cooling ring. whole assembly is fitted with four heavy-duty casters where two casters are equipped with brakes. 带有硬铝型材双柱的2.3米号的薄膜引取塔，控制柜设计精巧，集成了控制箱和冷却环的吹气装置。整个系统安装在四个承重脚轮上，其中两个带有刹车装置。

¨       roll width 400 mm that can accommodate film lay flat widths of up to 300 mm. 辊宽度400毫米可以容纳薄膜宽度为300毫米。

¨       pneumatically operated film nip rolls with controls on sub cabinet. 气动薄膜夹紧辊。

¨       s-type adaptor for extruder allows for lower position of film die. the die is mounted on the two aluminium pillars, adjustable in height to fit extruder flange. 挤出机s-型适配器允许模头较低安装位置。模头安装在两个铝梁上，高度可根据挤出机法兰的高度进行调整。

¨       film die diameter as standard 50 mm giving a blown film diameter of around 150mm. removable die lip assembly for easy changeover to other diameters. 薄膜模头直径为标准50mm可吹制150mm直径薄膜，模唇单元易于拆除更换其他直径模块。

¨       film die where the mandrel is equipped with spider fed spiral flow channels for uniform distribution of polymer melt around entire die area. all internal die parts are hard chromed with high polish. easy adjustable die opening for accurate film thickness control. 模头心轴处安装了蛛网供料螺旋导流槽使聚合物熔体在整个模头区域得到均匀一致的分布，所有的模头内部部件均镀硬铬并高度抛光；易于调整的模头开口容易获得的薄膜厚度控制。

¨       two digital self-tuning temperature controllers, one for film die and the other for the flange for the extruder. the controllers are mounted on the sub cabinet to the film tower. 两个数字式自旋转温度控制器，一个用于薄膜模头另一个用于挤出机法兰。控制器安装在吹膜塔的控制柜中。

¨       large twin channel cooling ring for optimum cooling efficiency. the upper channel is equipped with adjustable airflow lips. air supplied from a 1 hp turbo blower. 大型双通道冷却环可获得冷却效果，上通道配置了可调气流喷嘴。压缩空气由hp涡轮空压机提供。

¨       film bubble stabilizing rods as well as synchronous adjustable film collapsing gates with polished teak wood gate rods. 薄膜吹泡稳定棒，以及带有抛光柚木门轴的同步调节薄膜收卷门

¨       infinite variable speed drive of nip rolls. 无级变速的夹紧辊电机

¨       three guide rollers for downside movement of film. 引导薄膜向下运动的三个导向辊

¨       inspection cabinet with lamps placed on downside of film tower. the lamps will shine through the film for easy inspection of film quality. 吹膜塔带内置光源的检查箱，通过薄膜的透射光易于检测薄膜质量。

¨       film wind-up with easy removable bobbins. variable speed drive with clutch for windup. 薄膜收卷在易于卸除的卷轴上，收卷速度由带有离合器的速度可调电机控制。

¨       electric cabinet as well as control cabinet in the sub cabinet, containing all controls such as two temperature controllers, on/off push buttons for blower, film drives, lamp and pneumatic opening/closing of nip rolls. the film attachment is equipped with it’s own electric supply so that the die and flange can be heated up even when removed from the extruder. 电气柜带有所有控制模块包括两组温度控制器，吹膜机开/关按钮，光源和夹紧轮的气动张开/闭合控制。薄膜附加设备带有自己的供电模块，因此即使同挤出机分开也可以将模头和法兰单独加热。

laboratory single screw extruder type le25-30 with c-clamp flange on extruder head for attachment of downstream equipment

带有c-型夹具法兰的实验室单螺杆挤出机le25-30

¨       screw and barrel in high-grade nitride steel, screw diameter 25 mm and l/d ratio of 30.螺杆和机筒材质由氮化钢构成，螺杆直径25毫米，长径比30。

¨       screw with maddock mixing section at 22 d and with pineapple mixing at screw tip. compression ratio 1 to 3. also available with a plain screw, without maddock and pineapple mixing sections. this version is suitable for general polyolefin processing in connection with downstream film blowing, flat film chill roll and other attachments. this screw can also be supplied with hard chroming for processing of pvc screw. 螺杆压缩比1：3。22d区域带maddock混合区，螺杆头部带菠萝形混合区。适合绝大多数原料。镀铬后的螺杆甚至适用于pvc的混炼。

¨       screw speed infinite variable from 0 to 300 rpm螺杆转速从0到300rpm无级可调。

¨       large oversized 4 kw ac motor drive, coupled directly to a helical bevel gear, which in turn is connected to an individual housing containing the oversized trust bearing for the screw drive. 大型4千瓦交流电机直接同螺旋型锥齿轮连接。

¨       programmable frequency inverter for infinite variable screw speed and high torque even at low screw speeds. digital readout of the screw rpm and motor power (amp) on the control panel. 可编程频率换流器可确保在低螺杆速度的情况下无级调节螺杆转速和高扭矩，螺杆转速和电机输出功率可在控制面板上数显输出。

¨       4 heating zones on barrel, all with air-cooling. each zone with multiple rows of copper fins for high cooling efficiency, coupled with oversized cooling fans mounted at the rear of the extruder barrel. large wattage on heaters coupled with the efficient cooling system ensures very fast heating and cooling of each zone. 机筒上有4个加热区域，都带有空气冷却装置；每个区域含附带大冷却风扇的多排铜叶片可获得高冷却效果，高功率的加热模块同的冷却系统相结合可以确保每个区域的快速加热和冷却。

¨       digital programmable set and readout temperature controllers for all zones coupled to solid-state relays for accurate heat control. 每个加热区的数字可编程温控同固态继电器连接获得的加热控制。

¨       new quick open c-clamp die flange system for easy changeover of downstream equipment. 通过可快速拆卸的模头c型夹具法兰可轻易地改变下游设备。

¨       full steel cover over the extruder barrel with air venting grid on top. 挤出机机筒盖板为带有通风开口的全钢材质。

¨       modern designed extruder body where all components are fully enclosed. 现代设计的挤出机机体可以将所有部件整合。

¨       all electric components and instruments are mounted in the sub body of the extruder. 所有的电气部件在挤出机内置。

¨       convenient control panel mounted below extruder barrel in an upward angle for easy viewing. 控制面板以向上的角度安装在挤出机机筒上，便于操作。

¨       stainless steel hopper with a 3-position safety turret valve for normal open position, closed position and discharge through a slanted pipe in front of the turret valve. 不锈钢料斗带有3个位置的下料孔可供正常开启，另外可轻易地从下料孔前倾斜的管道快速卸料。

¨       extruder body on four adjustable feet with rubber pads for secure positioning on the bench. 挤出机的4个可调支腿带有橡胶垫确保定位。

¨       extended extruder control panel containing following instruments: 挤出机控制面板包括下列部件：

§      6 temperature controllers (4 for extruder barrel and 2 for die adaptor) 6个温度控制器（挤出机筒4个；模头2个）

§      digital screw rpm readout instrument with up/down scroll buttons for precise speed regulation. 螺杆转速数字输出带有上/下键可获得精确速度调节。

§      digital readout of motor power in percent of max full load. 电机输出数字显示以输出的百分比显示

§      1 digital pressure indicator 1个数字式熔体压力显示

§      1 digital readout of melt temperature 1个数字式熔体温度显示

§      start, stop and mushroom type self-locking emergency push buttons as well as on/off se-lectors switch for electric control circuit. 启动、停止、急停按钮

¨       pressure sensor with incorporated melt temperature sensor in-serted in the die adaptor near the breaker plate.  熔体温度/压力传感器插入模头适配器