φ 16~φ 40 the first mock examination double cavity pipe production line

（1） SJSZ65/132 conical twin-screw extruder

1) Rack

Made by welding steel sections and plates, and subjected to stress treatment, it has high rigidity and minimal deformation.

2) Gearbox

The product design adopts the technical specifications specified in ZBJ19009-88, and the gear and shaft parts are made of high-strength alloy steel material. The gear accuracy is GB10095-88, grade 6, and the tooth surface hardness is HRC-6. The output shaft end is equipped with an oversized thrust bearing, which can withstand the back thrust of the screw. The main standard components such as bearings and oil seals are made of high-quality domestic products. The whole machine has high load-bearing capacity, smooth transmission, low noise, and high efficiency.

A. Reduction ratio: 39:1

B. Input power: 37KW

C. Using hard tooth surface grinding for gears, low noise, high lifespan, and reliable operation

D. Oil immersed lubrication system

3) Material barrel and screw

A. The material of the barrel and screw is high-quality 38CrMoAlA nitride steel

B. Nitriding layer depth: 0.4-0.7mm, nitriding hardness: screw 780HV, barrel 850HV

C. Screw diameter: Small head 65mm, large head 132mm

D. Screw length: 1430mm

E. Screw speed: 0-37rpm

F. Surface roughness of screw edge: 0.4um

G. 料筒内表面粗糙度: 0.4um

4) Heating system (heater)

A. The barrel adopts 4 sets of heaters, and the head is equipped with an additional 6-zone heater

B. Heating power supply: 3-AC3800V, 50HZ,

C. The heater is covered with a stainless steel safety cover

5) Cooling device

A. The barrel is cooled by three sets of centrifugal fans, with a power of 320W per zone

B. Fan power supply: 3-AC380V, 50HZ,

6) Main motor

A. Motor power: 37KW

B. Integrated installation of motor and host

C. Power supply: 3-AC3800V, 50HZ,

D. Motor synchronous speed 1500rpm

7) Quantitative feeding device and hopper:

A. Steel circular hopper,

B. Quantitative feeding method: screw type quantitative feeding

C. Quantitative feeding speed regulation method: 1.1Kw variable frequency speed regulation

8) Head connection flange:

A. Forged 45 # steel with precision machined inner lining plated with hard chrome, connected to the hexagonal bolt inside the machine head

B. Surface blackening treatment

9) Electrical control cabinet:

A. Power supply: 3-AC380V, 50HZ

B. Variable frequency drive: Danvers Group Hailip frequency converter

C. Temperature control: 10 zones, digital temperature controller

D. Independent electrical control cabinet

（2） SJSG-2-63 Plastic Pipe Forming Auxiliary Machine

1). Stainless steel shaping box

a. Effective length 5000mm

b. Two 2.2kw vacuum pumps

c. One 1.5kw water pump

2). Crawler type 4 tractor

a. Number of tracks 2- a total of 4

b. Drive power 1.5kw, variable frequency speed regulation

c. Track clamp effective length 1200mm

d. Traction pipe range 16-40mm

e. Maximum traction force of 1500N

f. Traction speed 0-5m/min

3). Up stroke saw blade 2-station cutting machine

a. Cutting range 16-40mm

b. Maximum cutting wall thickness 6mm

c. Cutting motor power 075kw

d. Cutting logic system

4). Detachable receiving platform 3000mm

（3） Molding head part

PVC special pipe die, suitable for pipe range of φ 16~40mm, the first mock examination multi-core design.