HDPE Polyurethane Pre-Insulated Pipe Extrsuion Production Line

Model NO.
SJ90, SJ120
New, Under The Order
Pipe Types
Solid, Thermal Insulating Jacket PE Pipe
Delivery Conditions
Processing Period
40-60 Days
Delivery Period
After-Sales Service
Send Engineers Install and Test Machine
Technical Support
Pipe Type
Water Supply Pipe, Heat-Insulating Casing Pipe
30% Before Production
Delivery Time
Sincere Machinery
Transport Package
Stretch Film and Wooden Pallet, Wooden Packing
Pipes Diameters 90,110,315,400,630,710,1200,1600mm
Qingdao, China
HS Code
We normally think and practice corresponding on the change of circumstance, and grow up. We aim at the achievement of a richer mind and body and also the living for HDPE Polyurethane Pre-Insulated Pipe Extrsuion Production Line, The product will supply to all over the world, such as: Manila, Victoria, Libya, Our company warmly invites domestic and overseas customers to come and negotiate business with us. Let us join hands to create a brilliant tomorrow! We are looking forward to cooperating with you sincerely to achieve a win-win situation. We promise to try our best to provide you with high quality and efficient services.
Qingdao Sincere Machinery Co., Ltd. Diamond / Audited Supplier
Pre-insulated pipe production line with HDPE Black/Yellow Shell and polyurethane foam.
HDPE Casing Pipe Making Machine
polyurethane foaming Machine

Type 1: Two Step Pre-insulated Pipe Making Machine

Brand : Qingdao Sincere Machinery
Two Step Pre-insulated Pipe Making Machine
Isolate heat layer and anti-corrosion layer are wrapped on steel pipe at the same time, continuous production, high efficiency and low cost.
Machine feature: low cost, without vacuum calibration tank, inner pressure produce method;
In-line ball blast de-rust, in-line painting and antirust treatment.
Diameter range: Φ48-Φ1800mm.
This set is mainly used to produce the big size PE heat preservation pipe. Its product is mainly used in the outer layer of heating pipe line, the middle layer is polyurethane foaming layer and the inner layer is steel tube. 
It can also produce water supply pipe and drain pipe by adding the vacuum calibration tank and cooling tank. 
This set is composed of extruder, die and mould, cooling water sink, haul off machine, clipping pipe machine, bracket, support frame and electric controlling pats, etc.

Technology flow:HDPE two step method is produce the HDPE casing in first step, then thread pipe inside the casing and foaming in the middle of it.
Main technical data:

Extruder Haul off machine Main mould Pipe dia.
SJ90-1/25 SJGF-400-6 claws Φ110, Φ250 Φ75-Φ400
SJ120-1/25 SJGF-800-8 claws Φ420 Φ400-Φ760
SJ150-1/25 SJGF-1500-10 claws Φ760 Φ600-Φ1800

Type 2: One Step Pre-insulated Pipe Making Machine
Brand : Qingdao Sincere Machinery
One Step Pre-insulated Pipe Making Machine
This one step technology is to cover the steel tube surface with insulation layer& anti-corrosion layer at the same time, thus forms insulating& anti-corrosion layer of the pepeline, which is pioneer way in China, Compred wich other methods, it features continuous operation, high efficiency, low cost, energy saving, labor saving, environment pollution-free and so on. Progress second prize, several technology update to the advanced international lever. After updating technology, it has reached internation advanced lever.
The outer casing can be yellow color and black color.
Technical features of pre-insulated pipe making machine:
1. can be operated continuously, high production efficiency, low cost, energy saving
2. automatic deviation adjusting machine, high exactness, steady working, effective correction
3. the whole line all conveyed by rubber wheel, avoid damage to anti-corrosion layer of steel tube
4. casing layer stick with foam layer, foam layer stick with anti-corrosion layer, anti-corrosion layer firmly stick with steel tube.
5,Foming machine online foaming;
6,Pushing machine push the steel into the clad die head&Mould easily;

Specification table of pre insulated pipe: The thickness of foaming layer and casing can be desinged according to customers requirement

Steel Tube Size(mm) Casing Wall Thickness(mm) Insulating Layer(mm)
45 2.0 29
57 2.0 29
76 2.2 30
89 2.2 30
108 2.4 30
133 2.4 30
159 2.5 40
219 2.5 40
273 3.0 40
325 3.0 40
377 3.5 40
426 4 50

Constitute of one step pre-insulated pipe making machine:
1,Pushing Machine
2,Single Screw Extruder
3,Die Head&Mould for threading the steel pipe
4,Low Pressure Foaming Machine
5,Water Cooling Tank 
6,Auto Deviation Correction Machine
7,Transmission Line for conveying steel pipe and conveying finished foam pipe