China-Conical-Twin-Screw-Barrel-for-Extruder-Machine

June 17 10:17:19, 2023

Extruder  twin  Screw Barrel
 
KEYWORDS: EXTRUDER TWIN SCREW, EXTRUDER TWIN SCREW AND BARREL
 
Screw Barrels are manufactured from High Quality Nitro Alloy 38CrMoALA with Highly finished Ground or Honed Bores and having Nitrogen Case Hardened Surfaces making them Extremely Durable and Wear Resistant.We also offers Special Screw Barrels, like Split Barrels, Segmented Screws, Single Screw Barrels, Special Configration, Special Materials, with Special Surface Treatment like Plasma Nitriding, bi-metallic, Hard Chromed, etc.
 
PRODUCTION INFORMATION
Heat Treatment of Screw Nitriding 96 Hour
Hardness of Nitration Layer HRC 56-58
Hardness of Bimetallic Layer HRC 62-64
Nitrated Layer of Screw 0.5-0.8mm
Bimetallic Layer Thickness 2-4 mm
Surface Roughness Ra 0.4um
Fragility of Nitration Less Than Grade 1
Means of Transport by Sea or by Air
Delivery Date of goods 25-30 Days
Package of screw barrel Ply Wood Case

AVAILABLE SOLUTION OF EXTRUDER TWIN SCREW BARREL
ITEMS GRADE HARDNESS AND LIFE TIME PROCESS DETAILS
ZERO SOLUTION (HRC 58-62, 12-18 months) 42CrMo/38CrMoALA + thermo refining
+Hvof spraying+ nitriding 96 hours+fine polishing
JUPITER SOLUTION (HRC 58-62, 12-18 months) 42CrMo/38CrMoALA + thermo refining
+Hvof spraying+ nitriding 96 hours+fine polishing
ULTRON SOLUTION (HRC 62-64, 24 months) SKD61+queching+ harden inside process
+nitriding 96 hours+fine polishing
 
DIMENSION RANGE OF SCREW BARREL (TWIN CONICAL SCREW BARREL)
 
Model  SJSZ-51  SJSZ-55  SJSZ-65  SJSZ-80 SSJZ-92
Screw Dia. (mm)  51/105   55/110  65/132  80/156  92/188
Max. Speed (rpm)   40   38 38  37  36
Main Motor(KW)  18.5  22  37  55  90
Output (KG/h)   80-100  100-150  150-250   250-280  380-700
 
 
DIMENSION OF SCREW BARREL(SINGLE, OR TWIN PARALLEL SCREW BARREL)
 
ITEMS DIAMETER TOTAL LENGTH L/D RATIO
screw 15-300 mm   300-6000 mm  15-50
barrel  60-600 mm  300-6000 mm  
 
 
PACKAGE AND DELIVERY OF SCREW BARREL

1. Inner Packing is the PE film bag 
2. Out packing is Paper carton or wooden box packing 
3. Depend on the customer's requirements.
4. Delivery time:  20-25 working days.

OUR SERVICE

1. Measure dimension of screw and barrel
2. Complete manufacturing drawing
3. Make optimal solution based on customer's require
4.Calculate the cost of goods
5.Take photos of finished screw barrel
6.Make booking and shipping schedule
7.Send customs clearance documents
8.Arrange factory visiting schedule
9.Assistant with customers to deal other matters

COMPANY INTRODUCTION

NINGBO COWELL INDUSTRY CO.,LTD was established in 2006. It's highly involved in manufacturing of injection screw barrel, extruder screw barrel, rubber machine screw barrel as well as ball screw, linear guide, which are the critical component of precision machinery and mainly applied to Plastics Injection Machine, Plastic processing extruder, Machine Tool, Engineering machine, Precision Orientation Equipment and other equipments and machines.
 
It has professional technician team, engaged in manufacturing and researching of screw barrel. Recent years, Cowell industry places great emphasis in upgrading not only the manufacturing and quality of screw barrel but also after sales service. We uphold the concept "customer first", to provide professional, promptly and attentive service as well as better solution to continuously create value for customers.Good reputation has won the recognition from domestic and oversea market. Now we have exported to more than more than 30 countries and regions, including Middle East, Southeast Asia, France, Denmark, Finland, Italy, Poland, Brazil and Chile etc.
 
We warmly welcome customers oversea to build long term cooperation relationship with us!
 

Reagents

The relation between the metabolism and the cytotoxic effects of bisphenol A (BPA, 2,2-bis(4-hydroxyphenyl)propane) has been studied in freshly isolated rat hepatocytes and isolated hepatic mitochondria. The incubation of hepatocytes with BPA (0.25–0 mM) elicited a concentration- and time-dependent cell death, accompanied by losses of intracellular ATP and total adenine nucleotide pools. BPA at a low-toxic level (0.25 mM) in the hepatocyte suspensions was rapidly converted to its major conjugate, BPA-glucuronide, and other minor products without marked loss of cell viability, although at a toxic level (0.5 mM), more than 65% of the compound presented in an unaltered form 2 h after the incubation. Addition of salicylamide (2 mM), non-toxic to hepatocytes during the incubation period, enhanced BPA-induced cytotoxicity and reduced the loss of BPA and the formation of BPA-glucuronide. The addition of BPA to isolated hepatic.

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