1 unit 25 m, 30 l/d extruder type le 25-30/c

单螺杆挤出机   型号 le25-30/ c

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.

螺杆在22倍直径长度方向带maddock混合区，螺杆头带菠萝形混合区。压缩比1：3。适用于通用聚烯烃的混炼，且可方便与下游设备如吹膜设备、流延膜设备连接。

screw speed infinite variable from 0 to 300 rpm.

螺杆转速从0~300rpm无级可调。

large oversized 4 kw ac motor drive, coupled directly to a in line heavy-duty helical gear box, which in turn is connected to an individual housing containing the oversized trust and position bearings for the screw drive.

大型4千瓦交流电机同锥形齿轮连接，由此带动大型推力轴承驱动螺杆。

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 in percent of full load from instruments mounted 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 is equipped with high efficient air-cooling where copper sheets are mounted below the band heaters ending up in a multitude of fins. these fins catch the cold air and conduct it directly to the barrel. the sirocco type of cooling fans are all mounted in the extruder sub cabinet and connected to each zone with hoses.  the large wattage on the band 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 5 zones coupled to solid-state relays for accurate heat control. the controllers are self-tuning and equipped with programmed auto compensation, ensuring a precise temperature over the entire working range of 0 to 300 °c.

5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。温度至300°c。

chromed strand die head with two strands as well as one heating zone. streamlined die channels designed for shortest possible change of colours or compound with minimum contamination.

标准2孔线模头经镀铬处理。模头通道的独特设计为快速换色或更换其他填充物提供了便利。

extruder head with chromed c-clamp, equipped with two isolated handles and a single clamping screw for easy operation. breaker plate for screens is situated at extruder head, before down- stream die for easy access.

c型夹具同样经镀铬处理，配备2个独立把手。换网卡盘在模头前，可方便换滤网。

full steel cover over the entire extruder barrel with air venting grid on top.

全钢材质包覆整个挤出机机筒，顶部带排气口。

modern designed extruder body where all components are fully enclosed.

挤出机设计风格清新现代，所有结构组成坚固严实。

large built in cabinet for all electric components with swing open doors fully separated from the other extruder components.

所有的电气部件在挤出机内置。

convenient swing away control cabinet, which enable full view from all desired angles.

摇臂设计的控制面板，方便从各个角度进行查看。

stainless steel hopper, mounted on a turret valve with spring lock pin and with the following three positions: fully closed, fully open and discharge through a pipe at the front of the extruder.

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 heavy-duty lockable casters.

挤出机的4个可调支腿带有橡胶垫确保定位。

extended extruder control panel

挤出机控制面板组成

five digital programmable self-tuning temperature controllers (4 for extruder barrel and 1 for die adaptor).

5个温度控制器，机筒4个，模头1个。

one pressure controller with closed loop regulation of extruder speed. the controller is connected to the pressure transducer at the inlet of the flat die and will control the flow of the resin from the extruder, allowing a precise thickness control of the extruding.

1个压力控制器带挤出机转速闭环反馈控制。控制器与置于平挤模头进口的传感器相连，可控制挤出机模头内的熔体流动，确保挤出产品厚度的精确控制。

one digital pressure indicator showing the pressure in bar at the inlet of the flat film/sheet die.

1个数字式压力显示器显示平挤模头前的熔体压力。

one digital instrument for readout of melts temperature. this instrument is connected to the melt temperature sensor on the pressure transducer and will give an accurate readout of the resin entering the die.

1个数字式温度显示器，与置于压力传感器内的温度传感器连接，可显示精确的熔体温度。

one digital indicator of the screw speed in rpm.

1个数字式螺杆速度显示装置。

one digital indicator showing the extruder motor load in % of full load.

1个数字式显示装置显示挤出机马达功率的载荷百分比。

one potentiometer for manually setting of the screw speed.

1个电位旋扭可设定螺杆转速。

one selector switch with manual and automatic mode. the manual mode is used for starting up the extruder before pressure builds up at the die. when pressure is showing on the indicator, the switch can be turned to automatic mode where the extruder will feed the die with a desired resin flow at a preset pressure value. the manual mode is also used when the extruder is being used for other purposes like compounding etc.

1个选择开关可选手动或自动模式。手动模式在系统启动时使用，当压力达到一定数值，可选择自动模式。手动模式同样适用于聚合物共混的用途。

optionally the chill roll line can be equipped with the vented 25 mm, 30 l/d extruder which will enable easy production of moisture sensitive resins such as abs, pet etc without the need for pre drying of the resin. the vented version of our 25 mm extruder has been developed with a special screw design, which ensures very good feeding properties without material bleeding out of the vent. the screw designs has been tested and proven with many different polymers such as ld & hd-pe, pp, ps, abs, nylon, and pet. the features are the same as listed on page 1 for our non-vented version with the following additions:

可选项：25mm直径，30倍长径比，带排气装置的螺杆挤出机。此种配置非常适用于潮湿的敏感材料如abs，pet的共混加工，而不需要经过预热。螺杆经过特殊设计而不会使熔体从排气口溢出，并已经过ld & hd-pe， pp， ps， abs， nylon，pet等材料的实验验证。主要描述如下：

¨       vented screw design with maddock mixing section at 15 d followed by the decompression and venting zone. the screw at the vent and to the end has double flights for optimum feeding property. the tip of the screw is equipped with split open flanges for additional mixing.

排气设计的螺杆在15倍直径长度方向带maddock混合区，之后是减压和排气区。排气区至螺杆后段经精密处理精确的喂料特性。模唇部分开口以备其他填充物的加入。

¨       large vent opening made of stainless steel. equipped with stainless steel swing open lid with large polycarbonate window and with pipe connection for eventual vacuum pump. the swing open lid is equipped with rubber seal to give a tight vacuum fit to vent.

排气口为不锈钢材质。开口封盖同样为不锈钢材质，以聚碳酸酯材料密封，通过管道和真空泵相连。封盖带橡胶密封圈严密的闭气效果。

¨       built in vane type vacuum pump driven by a 0,3 kw motor and with an air capacity of 6,000 liter per hour. including large inlet filter as well as a vacuum dial gauge and release valve mounted on the top of the extruder barrel behind the vent opening. an on/off se-lector switch mounted on the control panel controls the vane pump, which is mounted in the sub cabinet of the extruder.

真空叶片泵由0.3千瓦电机驱动，工作能力为6000升/小时。包含强力进口过滤装置、真空度显示表和置于料筒上的排气阀。控制面板上的选择开关可控制真空泵的开关状态。

¨       thanks to the c-clamp connection to the die, and the casters, the extruder can easily be rolled away from the chill roll line and be used for other applications such as compounding, filter test etc.

得益于c型夹具和底部轮脚的设计，挤出机可方便的与下游设备如流延膜装置、过滤挤出装置相连接。

1 unit chill roll flat film and sheet attachment

冷辊及收卷系统lcr-300

suitable for producing films and sheet in many different resin types such as pe, pp, ps, abs, pvc, pet, pc etc.

适用于如pe，pp，ps，abs，pvc，pet，pc等各种树脂粒子流延膜挤出。

c-clamp flange on flat film die for easy removal of chill roll attachment as well as changing of screens.

c型夹具可方便与冷辊系统分离或者换网。

flat 250 mm wide sheet die with adjustable lips for sheet thickness from 0.3 to 1.5 mm or film thickness down to 0,01 mm. the die is of a coat hanger type construction with optimum internal flow properties for even melt distribution along the entire die width. all internal parts are hard chromed and have been given a mirror-polished surface. the die is mounted on a stand with casters so that it can easily be removed from the c-clamp on the extruder. (please not that a 250 mm wide die opening will produce a film or sheet with less width since you have a “neck in” effect when you pull out the melted resin from the die before it reaches the surface of the chill roll. the width you can achieve depends on the melt strength of the resin as well as the distance between the die lip opening and the chill roll. but in general, about 80% of the die opening width can be achieved).

250mm宽度的平挤模头，模唇间隙可调节，因此片材挤出厚度从0.3mm到1.5mm，薄膜挤出厚度*薄可至0.01mm。衣架型模具可在整个薄膜宽度范围内获得内部流动特性。所有的内部件都镀硬铬并具有镜面抛光表面。模头安装在一个带轮脚的支架上因此可以轻易地从挤出机的c-型夹具上移开。（注意：250毫米宽开口的模头只能获得小于此宽度的薄膜或片材，因为当熔体树脂被从模头拉至冷辊上时会产生“颈缩”效应，*终获得的实际宽度依赖于树脂的熔体强度以及模唇开口同冷辊之间的距离，但总而言之，可获得模头开口宽度80%的产品宽度。）

pressure sensor with incorporated melt temperature sensor in-serted in the die adaptor near the breaker plate.

压力传感器与温度传感器整合，置于模头适配器之中。

sheet and film chill roll attachment for either horizontal or vertical roll stack position. as standard the roll stack is supplied with vertical (upright) roll stack and horizontal extruder die connection. the roll stack can be tilted down to a horizontal position and with this, the die need to be equipped with an optional angled extruder adaptor so that the die will point down against the chill roll. this position is most suitable for production of thin films.

冷辊系统可选择垂直或水平方向安置。标准方式是垂直方向而挤出模头是水平方向。同样冷辊系统可选择水平方向安置而挤出模头相应为垂直方向（需加配直角适配器）。这种配置方式适合于较薄的薄膜挤出。

with large 145 mm diameter chill roll and additional cooling and polishing rolls. roll widths are all 350 mm. all three rolls are equipped with internal cores for efficient water-cooling and heating, allowing a precise temperature control of roll surface. polishing roll with   pneumatic nip opening and closing as well as micrometric fine adjustment of nip-gap with dial gauges for distance readout.

冷辊及额外的冷却及抛光辊的直径为145mm。辊宽度为350mm。三辊均内置水冷却/加热装置，可对辊表面温度精确控制。抛光辊带气动控制系统可精确控制间隙并由刻度表显示。

chill roll attachment is mounted on rails and can easily be rolled away from the die and the extruder for access to the die opening.

整套冷辊附属系统置于滑轨之上，可方便从挤出模头移开。

swing aside control panel with:

摇臂式控制面板包括：

4   three digital rpm speed controls for controlling the speed of数字式速度控制

1.       chill rolls冷辊速度

2.       nip-rolls for pulling out the film/sheet辊牵引速度

3.       windup收卷速度

the instruments are equipped with up/down scroll buttons for speed regulation.

由上/下按钮进行速度调节

4   three digital programmable self-tuning temperature controllers for the flat die. the controllers regulate individually the left, center and right side of the die. with this it is possible to obtain a very precise and even film thickness over the entire film or sheet width.

      模头三区温度控制，分别在左，中，右位置。由此可得到精确的温度控制。

4   control buttons for: 其他控制按钮包括

1.       main se-lector switch for on/off of control circuit主控制开关

2.       se-lector switch for on/off of high pressure blower to air knife风刀控制开关

3.       se-lector switch for up/down movement of polishing roll抛光辊高度控制

4.       on and off buttons for chill rolls, nip rolls and windup system. 冷辊，间隙辊及收卷辊开关控制

roll drives with variable speed ac geared motors with speed regulation from programmable inverter. the roller stack connected to the chill-roll unit is equipped with a set of take off rollers, rubber nip rolls as well as a windup unit driven by another two individual variable speed ac motors, regulated by programmable inverters. the windup unit is equipped with an adjustable slipping clutch for constant windup torque.

辊驱动由交流变频调速马达控制。过渡及收卷辊由其他两个独立的交流变频马达控制。收卷辊系统带滑动离合装置连续扭矩。

hot and cold water circulating unit, connected to all 3 rolls and with temperature regulation for a maximum temperature of 140 degrees c. valves manually regulates the water flow to the polishing and cooling rolls. the polishing and second cooling rolls can also be individually cooled from your water system. optionally additional water heating and cooling units can be connected to the polishing roll and second cooling roll.

冷/热水循环装置连接3个主辊，精确的温度控制，至140度。抛光棍及第二冷却辊也可单独冷却。并且也可选额外的水冷/热装置单独控制。

air knife with adjustable nozzle height and angle to the chill roll, connected to a high-pressure ring blower.

风刀的角度和高度可调节，连接到高压吹风装置。

optional gear pumps as well as closed loop control of gear pumps. with this you will get a very precise output rate at all speeds of the extruder and gear pump.the features as following:

l         complete gear pump with variable speed ac inverter drive pump output 3 cc.per rev.

l         closed loop control of feed rate to gear pump with pressure transducer and controller as well as electronic speed control of extruder.

可选齿轮泵带闭环反馈控制。由此可获得的精确的流量输出。主要功能如下：

l         齿轮泵带无级变速交流电机，流量为3mm/转。

l         压力传感器与齿轮泵及挤出机相连，由此形成闭环反馈回路，并由转速调整控制挤出机的挤出量。