1 unit laboratory single screw extruder type le25-30/p, for general extrusion and compounding of pe, pp, ps, abs, nylon, pet etc., equipped as following: 1臺實(shí)驗(yàn)室單螺桿擠出機(jī)le25-30p，用作pe、pp、ps、abs、尼龍、pet等樹脂的通用用途擠出或共混。

screw and barrel in high-grade nitride hardened steel, screw diameter 25 mm and l/d ratio of 30. 機(jī)筒材質(zhì)由高級氮化鋼構(gòu)成，螺桿直徑25毫米，長徑比30。

plain 30 l/d screw with compression 1: 3.5. alternatively equipped with compounding screw with maddock mixing section at 21 d and with final pineapple type mixing device at screw tip.

普通30倍長徑比壓縮比為1:3.5，可選安裝混料螺桿從21d位置開始帶maddock混合區(qū)，而在擠出機(jī)頭帶有菠蘿型混合元件。

water-cooling of feed section as well as lower part of hopper funnel.

供料區(qū)和供料口下部水冷。

large rectangular feed opening in barrel for efficient feeding of both pellets and powders. 料筒上方大型矩形供料口確保粒料和粉料的有效供料。

screw speed infinite variable from 0 to 300 rpm. 螺桿轉(zhuǎn)速從0到300rpm無級可調(diào)。

large oversized 4 kw ac motor drive, coupled directly to a helical gearbox. the gearbox is flange mounted directly to a trust bearing housing containing the screw-connecting shaft, which is resting in a heavy-duty trust bearing arrangement. 4千瓦交流電機(jī)直接同螺旋齒輪箱聯(lián)接，齒輪箱直接同一個含螺桿連接軸的止推軸承箱連接，螺桿連接軸安裝在一個重型止推軸承系統(tǒng)上。

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. the inverter is connected via plug in cables to the pressure instrument on the filter test unit. with this closed loop system, the extruder will be regulated to deliver a precise flow of resin to the gear pump. 可編程頻率換流器可確保在低螺桿速度的情況下無級調(diào)節(jié)螺桿轉(zhuǎn)速和高扭矩，螺桿轉(zhuǎn)速和電機(jī)輸出功率可在控制面板上數(shù)顯輸出。換流器通過內(nèi)建的電纜筒過濾測試模塊的壓力傳感器連接，通過閉環(huán)控制系統(tǒng)，擠出機(jī)可以輸出高流量精度的樹脂至齒輪泵。

se-lector switch on the control panel with manual and automatic mode. in the automatic mode, the pressure instrument on the filter test unit as described above controls the extruder speed. 控制面板上有手動/自動切換旋鈕。在自動模式下，過濾檢測模塊中的壓力儀器會控制擠出機(jī)速度。

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 in the extruders sub cabinet. large wattage on heaters coupled with the efficient cooling system ensures very fast heating and cooling of each zone. 機(jī)筒上有4個加熱區(qū)域，都帶有空氣冷卻裝置；每個區(qū)域附帶大冷卻風(fēng)扇的多排銅葉片可獲得高冷卻效果，高功率的加熱模塊同有效的冷卻系統(tǒng)相結(jié)合可以確保每個區(qū)域的快速加熱和冷卻。

digital programmable set and readout temperature controllers for all 4 barrel heating zones as well as for one spare zone for connecting to downstream equipment such as a strand die etc. the controllers are coupled to solid-state relays for accurate heat control and are equipped with auto tuning as well as linear compensation for very precise temperature regulation over entire working range. 帶有針對所有4個加熱區(qū)和額外的一個用于連接下游設(shè)備如線模頭的數(shù)字顯示可編程溫度控制器，溫控同固態(tài)繼電器連接可獲得準(zhǔn)確的加熱控制，同時它還帶有自動調(diào)節(jié)和線性補(bǔ)償功能用于在整個工作范圍內(nèi)獲得精確的溫度調(diào)節(jié)。

c-clamp type flange on the extruder head. 擠出機(jī)頭上的c-型法蘭。

full steel cover over the extruder barrel with air venting grid on top. 擠出機(jī)機(jī)筒蓋板為帶有通風(fēng)開口的全鋼材質(zhì)。

modern designed extruder body where all components are fully enclosed. 現(xiàn)代設(shè)計的擠出機(jī)機(jī)體可以將所有部件整合。

large built in cabinet for all electric components with swing open doors fully separated from the other extruder components. 可容納所有電子部件的電氣箱帶有拉門并同所有其它擠出機(jī)部件隔離。

convenient swing away control cabinet, which enable full view from all desired angles. 易于變換角度的控制柜可以從任何角度方便地得以全覽。

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. 不銹鋼料斗下方有一個帶彈簧鎖拴的塔式筏，它共有三種狀態(tài)：全關(guān)、全開、通過擠出機(jī)前方的管道快速下料。

extruder body on four heavy-duty lockable casters. 本體安裝在四個重型可鎖腳輪上。

1 unit filter test unit comprising of

 一個過濾測試模塊包括:

filter test body with a streamlined integrated gear pump heated with electric band heaters. the gear pump delivers 3 cc/rpm and is driven by an infinite variable speed 1 hp geared ac motor. a programmable inverter controls the speed of the gear pump. a pressure and melt temperature sensor is in-serted in the channel to the gear pump inlet. the pressure sensor is connected to a pressure control instrument that in turn will regulate the extruder screw speed to ensure that it delivers a steady flow of polymer at a constant pressure.

帶有流線型設(shè)計齒輪泵的過濾測試儀由電加熱帶加熱，齒輪泵流量為3毫升/轉(zhuǎn)并由一臺hp無級調(diào)速換檔交流電機(jī)驅(qū)動，齒輪泵的速度由可編程換流器控制。一個壓力和熔體溫度傳感器安裝在齒輪泵的進(jìn)口通道中，壓力傳感器同壓力控制元件連接從而控制擠出機(jī)螺桿轉(zhuǎn)速*終確保聚合物熔體以恒定的壓力穩(wěn)定運(yùn)行。

the melt temperature sensor will register accurately the temperature of the melt before entering the gear pump. it is also connected to the gear pump drive to ensure that the pump is not started unless proper melt temperature has been reached.

熔體溫度傳感器將會準(zhǔn)確紀(jì)錄聚合物熔體在進(jìn)入齒輪泵之間的溫度。

filter test head mounted in line with the gear pump and extruder. the breaker plate for the 44 mm filter disks is mounted on a retainer plate with a convenient handle so that it can be quickly in-serted and removed from the side of the filter test head. a second combined melt temperature and pressure sensor is in-serted just before the filter disk location. this will sense very accurately the pressure building up in front of the filter disk as well as the temperature of the melted polymer. the filter test head is heated with band heater and a digital controller regulates the temperature of the entire filter head very accurately with auto tuning function. the filter test with gear pump has a working range of 0 to 300 bars pressure.

過濾測試頭同齒輪泵和擠出機(jī)在線集成為一體，44mm濾盤安裝在固定板上，通過一個把手可以方便地將其從過濾測試頭的側(cè)面插入和移出。此設(shè)計將非常準(zhǔn)確地得到濾盤前方的熔體壓力和溫度。過濾測試頭通過帶狀加熱器加熱，同時通過一個數(shù)字控制器和自動調(diào)整裝置精確地控制整個過濾測試頭的溫度。帶有齒輪泵的過濾測試頭的工作范圍為0到300bar的壓力。

a control panel mounted on a pillar from the body of the filter test head is equipped with the following instruments過濾測試頭的控制面板包括以下部分:

ü     two digital pressure instruments, one connected to the pressure transducer to the entrance of the gear pump, the other in front of the filter pack. 兩個壓力模塊，一個連接到齒輪泵入口的壓力變化器，另一位于濾盤前。

ü     two digital temperature indicators showing the melt temperature before pump and before filter disk. 兩個溫度傳感器一個顯示齒輪泵前的熔體溫度，另一顯示濾盤前的溫度。

ü     one panel mounted continuous paper sheet recorder with 4 channels, which will print in four colours the pressures and temperatures registered before the filter head respectively before the filter disk. 一個面板帶有連續(xù)的四通道記錄儀，它可以4種顏色將過濾頭和過濾盤之前的熔體溫度和壓力分別打印出來。

ü     digital temperature control instrument to regulate the temperature of the filter test body. 數(shù)字溫控元件控制過濾測試模塊的本體溫度。

ü     control buttons for the filter test head. 過濾測試頭的控制按鈕。