Qingdao Sincere Machinery Co., Ltd

How is HDPE solid-wall wound pipe produced?

HDPE solid-wall wound pipe is typically produced through a process that involves continuous extrusion of the polymer melt around a mandrel, followed by cooling and cutting. The molten HDPE is forced through an annular die, forming the solid wall of the pipe. 

How is HDPE hollow wall wound pipe produced?

HDPE hollow wall wound pipes are produced using a winding process that forms a unique, structural ribbing within the pipe wall. This process involves extruding a rectangular tube embryo, winding it, and then welding it to form the final hollow-wall structure.

How are PE pipes produced?

The specific steps of the polyethylene(PE) pipe production process are as follows: 1. Raw materials are mixed and dried The function of mixing and drying is to stir, dry and mix polyethylene(PE) resin and color masterbatch to obtain uniform raw materials. If it has been PE compounds, there is no need to add color masterbatch. 2. Plasticizing and extrusion The raw material enters the extruder from the hopper. Under the action of conveying, compression, melting, and homogenization, the solid particles gradually change to a highly elastic state, and then gradually change from a highly elastic state to a viscous fluid (viscous fluid state), and continue Squeeze out. 3. Mold forming At a suitable temperature, the material extruded from the extruder passes through the filter plate from a rotary motion to a linear motion and enters the mold. After spiral splitting, it is fused and compacted into a tubular parison in the forming section, and finally extruded from the die. 4. Cooling and shaping The hot tube billet extruded from the die is shaped and cooled by the sizing sleeve vacuum sizing box under negative pressure, and then passes through the spray cooling box to gradually cool the inside of the pipe, thereby solidifying and setting the shape as a whole. 5. Laser coding and printing marks. Advanced laser printers are used to print the marks on the pipes, including pipe standards, raw material grade, applications, brand, production time, production batch, and pipe diameter, wall thickness, pressure rate and other information. These information should be ensured that it will not be disappeared after being buried to realize the traceability of the product. 6. Cutting Under the control of the meter wheel, the fixed-length cutting of the pipe is completed by the planetary cutting machine. 7. Stacking and packaging The cut pipes are pushed to the turning table, packaged and transported after passing the inspection. If you need to store it, be sure to avoid sunlight.

Plastic Recycling Pelletizing/Granulator

The test machine of plastic recycling strand granulation equipment was successful Waste Plastic Recycling Machine for PE/PP/PVC/ABS/PET Pelletizing Machinery Reliable and Fully Automatic Granulator Extruder Machine for Packing Belts/Bottle Flakes PP PE HDPE LDPE Plastic Pelletizing Machine Waste Plastic Granulator Recycling Machine 1.General description of Waste Plastic PP PE HDPE LDPE Film Bag Recycle Pelletizing Machinery PE PP Plastic film granulator / Waste film pelletizing machine 1. Capacity: 100kg/h-800kg/h 2. Type: Water-ring pelletizing,Water cooling strand pelletizing line,Hot cutting granulator and Two stage pelletizer The usage and characteristic *This water-cooling single screw plastic pellet making machine is one stage plastic regenerative pelletizer, which is suitable for many kinds plastic waste materials recycling and making pellet, such as PP, HDPE, LDPE, LLDPE Film and clean woven/nonwoven bag materials, etc. The film can be pressed in compressor and then be pelleted. *And also has very developed design, makes sure this machine has a long working life and economical efficiency in using. Parameters of Waste Plastic PP PE HDPE LDPE Film Bag Recycle Pelletizing Machinery Model Screw dia. (mm) L/D Screw speed max. (rpm) Main motor power (kw) Output (kg/h) XJ45 45 25-36 20-120 5.5-11 18-40 XJ65 65 25-36 20-120 15-37 40-90 XJ90 90 25-36 20-95 37-75 100-250 XJ120 120 25-36 20-80 55-110 250-380 XJ150 150 25-36 20-80 110-160 300-450 XJ180 180 25-36 20-80 180-250 400-650 SJB75 71 28-68 600 160 400-500 SJB85 81 28-68 600 220 500-600 SJB95 93 28-68 600 350 800-1000 SJB110 108 28-68 600 450 1000-2000 2.The type of pelletizing line for your optional 2.1 Water ring pelletizer It has advanced technology.It has the best quality and the lowest price. This machine is equipped with gearbox specially-designed for hard tooth face ; 38CrMoALA nitrided screw and barrel; non-stop screen-changer, cooling water tank, blower fan, hob-style granule-cutter. It is suitable for the recycling and pelletizing of PP, PE, PS, PET, ABS, PC, PVC, ect. Machine consists of: Belt conveyor → Compression barrel → Efficient extruder → Non-stop hydraulic screen filter changer → Water ring cutting → Centrifugal dehydrator machine →Vibration machine → Air conveying system → Storage silo Main techinical parameters Model Screw dia. (mm) L/D Screw speed max. (rpm) Main motor power (kw) Output (kg/h) XJ45 45 25-36 20-120 5.5-11 18-40 XJ65 65 25-36 20-120 15-37 40-90 XJ90 90 25-36 20-95 37-75 100-250 XJ120 120 25-36 20-80 55-110 250-380 XJ150 150 25-36 20-80 110-160 300-450 XJ180 180 25-36 20-80 180-250 400-650 SJB75 71 28-68 600 160 400-500 SJB85 81 28-68 600 220 500-600 SJB95 93 28-68 600 350 800-1000 SJB110 108 28-68 600 450 1000-2000

Ruplastica2025 in Moscow Russia 21-24 Jan 2025

  Ruplastica2025 in Moscow Russia 21-24 Jan 2025 Qingdao Sincere Machinery Hall No.: 2.3 Booth No.: 23B02     Ruplastica 2025, held from January 21 to 24 in Moscow, is a premier international trade fair focusing on plastics and rubber industries. This event showcases the entire value chain of the polymer industry, featuring the latest innovations, sustainable solutions, and cutting-edge technologies. It serves as a business development hub, attracting around 17,000 visitors from over 60 countries and about 650 exhibitors. The exhibition offers opportunities to explore new partnerships, discover trends, and strengthen global industry connections. Qingdao Sincere Machinery Co., Ltd. is located in the beautiful coastal city Qingdao of Shandong Province, Qingdao airport and Qingdao/Jiaozhou railway station provide convenient transportation. Our company is a plastic machinery research and development, design and manufacturing, production and operation and technical services as one of the high-tech enterprises. The area of construction is 12000M2, we have one office building and three workshops. We have certification CE, SGS, ISO, EAC and so on. Our main products are: Plastic extruders, PE/PP spiral winding pipe extrusion lines, profiled structural wall HDPE pipe extrusion line, ribbed/steel reinforced spiral DWC corrugated pipe machine, water tank machine, plastic welding threading engraving machine, HDPE/PPR/PVC/pert composite water pipe extrusion line, HDPE mbbr biomedia extruder machine, plastic HDPE/PP/ABS/pet/PVC sheet/board/panel extruding equipment, plastic PVC/PE/ABS profile/panel equipment, plastic recycling pelletizer granulation line, shredder/crushers and other auxiliary equipments for plastics. Varieties of new products sold domestic and exported to Russia, Southeast Asia, the Middle East, Africa and many other countries and regions. HDPE Spiral winding pipe extrusion line. HDPE Weholite/Culvert pipe extruding machine. KWH pipe machine. Krah pipe extrusion line. HDPE sewage pipe extruder machine. Double wall corrugated HDPE pipe extrusion lines. Water tank extrusion production line. DN200-DN4000mm HDPE pipe manufacturing machinery. Triple layers HDPE water supply pipe machine. HDPE/PP/PPR/PERT/PVC Water supply and drainage pipe extrusion line. MBBR Biomedia production extruder machine. Plasitc scrap granulator pelletizing linePVC/ABS/PE/PP profile/panel making machine. HDPE/PP/ABS/PMMAThick sheet/board production line. PE/PP/PET/PS/PC/PMMA/PLA sheet/panel produciton machine. Welcome to visit our factory and looking forward to win-win cooperation.

Arab Plast

  About Trade Fair ArabPlast The Premium International Trade Fair in the Middle East continues its tower! The most-awaited 17th Edition is poised to unveil on the 7th of January 2025 at the prestigious venue, Dubai World Trade Centre. The 3-day event will once again bring together the industry giants under a under a single canvas to project the world’s most resilient industry, its changing dynamics & to establish the importance of a circular economy for sustainable environment. In tandem with the plastics sector, the recycling industry is experiencing rapid and noteworthy growth, further enhancing the event's significance and relevance. Why Exhibit? A gateway to the largest market in the Region The core connectivity to the entire Middle East, Africa and Europe markets One stop destination to promote new products, innovations, latest technologies, and services to a global defined audience Unique point to explore, gather advanced know-how & seek specific solutions Meet decision-makers & forge alliances Enhance brand-awareness to stay ahead of competition MACHINERYBlow, Extrusion & Injection Molding Machines Bag & Sack Making Equipment Packaging Machines Preprocessing & Recycling Machines Post Processing / Converting Machines Plastic Welding Equipment Reactive or Reinforced Resins Machines Recycling Machines Rotating Molding Machines Stretch Blow Molding Vacuum & Thermoforming Machines

PE Pipe Extrusion Production Line Multiple stock

New Technology HDPE/PP/PE Large Diameter Water Supply Pipe and Gas Supply Pipe Making Machine Plastic PP PPR Water Supply Pipe Making Machine New Technology Small Diameter HDPE/PP/PE Water Supply Pipe and Gas Supply Pipe Making Machine High Efficient Plastic PP PPR Water Supply Pipe Making Machine HDPE/PP/ Water Supply and Gas Supply Pipe Extrusion Machine. HDPE Gas and Water Pressure Pipe Production Equipment Extruding Line (20-110,315,400,560,630,800,1200,1600mm). 1. HDPE/MDPE fuel gas/water supply pipe features: This Large diameter HDPE/MDPE fuel gas/water supply pipe extrusion line is mainly used for producing large diameter HDPE/MDPE pipe. The pipe has some excellent features such as heating resistant, aging resistant, high mechanical strength, environmental stress cracks resistant, good creep resistant, etc. It is a preferred gas conduit for ductwork systems between city and its suburb, water supply in city. 2. Production line features:   Extruders: Plastic Single-screw extruders for HDPE/PP, optinal SJ45, SJ55, SJ65,SJ75, SJ90,SJ100,SJ120,SJ150, L/D 33:1 or 38:1. Extrusion capacity from 40kg/h to 1500kg/h. High efficiency extruder is designed for HDPE pipe, equipped with reducer which is high speed and low noise, feeding section with cooling unit and reversing spiral groove, different pitch undulant screw which allows great output, lower melting temperature, and lower energy consumption.   Extrusion die-head Single layer extrusion die mould, double layers extrusion die moudld, three-layers extrusion molds. Distributed spiral composite extrusion die-head ensures the melting pressure and flux even and stable, the surface of pipe smooth and glossy.   Vacuum calibration water tanks, and spray water cooling tank: made of stainless steel ensures precise calibration and fast cooling.   Multi claws haul-off unit: Chipless cutting machine: speed adjusted by frequency inverter or by servo-motors. Be able to cut large diameter and thick wall pipe, servo-motors Haulling speed: 0-30m/min. Cutting machine 1.No-dust Cutter:The chip-free cutting machine can keep the production environment clean and noiseless. The incision is smooth and neat, which improves the appearance quality of the pipe. 2.Planetary Cutter:Planetary cutting machine with special hard fit blade, suitable for large diameter thick wall pipe cutting 3.Final product 4. Technical parameters: Model Pipe Diameters(mm) Supporting extruder (33:1 or 38:1) Extrusion capacity(kgh) Total Installed Power(kw) SG-63 16-63 SJ6533 SJ2525 120-180 110 SG-110 16-110 SJ6533 SJ2525 150-200 130 SG-160 50-160 SJ7533 SJ2525 150-220 150 SG-250 75-250 SJ7533 SJ2525 280-350 280 SG-315 110-315 SJ9033 SJ2525 250-350 350 SG-450 160-450 SJ9033 SJ2525 350-450 400 SG-630 315-630 SJ12033 SJ2525 550-850 550 SG-800 450-800 SJ15033 SJ2525 800-1300 750 SG-1000 600-1000 SJ15033 SJ2525 800-1300 750 SG-1200 800-1200 SJ12033*2 SJ2525 950-1600 950 SG-1600 1000-1600 SJ15033*2 SJ2525 1500-2500 1300 5. Our service *We can provide customers with perfect installation and use services. *We can provide customers with satisfactory products according to their needs. *When problems arise during the use of products, we can provide appropriate solutions. *The warranty period is one year, except man-damage. *Welcome to visit our factory and looking forward to win-win cooperation. 6.Our cooperation process: