screw and barrel in high-grade nitride steel, screw diameter 25 mm and l/d ratio of 30.

螺杆和机筒材质由高级氮化钢构成，螺杆直径25毫米，长径比30。

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, pc and pet.

带排气型号25毫米挤出机，螺杆经过特殊设计，可保证熔体不会经排气口溢出。螺杆经过测试适用于ldpe，hdpe，pp，ps，abs，nylon，pc，pet的混炼。

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。镀铬螺杆同样适用pvc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有效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准确的加热控制。

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准确定位。

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。