PVC Dual Pipe Making Machine

+25% Output Efficlency

-15% Energy Consumption

99.6% Stable Operation Rate

High Production Capacity Extruder

Industry-Leading Maximum Output: Our PVC production line achieves a maximum output of 750 kg/h for 450–630 mm pipes, meeting the demands of large-scale production.
Optimized Extrusion Mould with Thermal Centering: Deeply calculated internal flow channels eliminate spider lines and material stagnation. Combined with advanced thermal centering technology, it ensures extremely low pipe eccentricity and highly uniform wall thickness from the moment the melt exits the die.
Independent Dual Downstream Control: Features two completely independent lines of vacuum calibration tanks, spray cooling tanks, caterpillar haul-offs, and cutters. If one strand requires a temporary stop or adjustment, the other strand continues running 24/7 at high speed, keeping your scrap rate close to zero.
Advanced Dual-Cavity Extrusion Die: Deeply optimized internal flow channel splitters guarantee that the melt pressure, velocity, and temperature are distributed perfectly 50/50. This ensures that both pipe strands achieve identical wall thickness, weight, and smooth surface finishes.

The MIDTECH Dual-Strand PVC pipe extrusion line is the ultimate high-efficiency solution for manufacturing small-to-medium-sized standard PVC-U, PVC-C, and PVC-M pipes. It is the global industry standard for high-volume production of electrical conduit routing pipes, agricultural micro-irrigation lines, civil water supply networks, and residential drainage conduits. Our dual-strand lines stably process pipes meeting strict international standards like ISO 4422, ASTM D2241, and IEC standards, covering mainstream dual-pipe diameters from φ16mm up to φ110mm.

Parameter

Pipe range(mm)	Screw diameter(mm)	Capacity(Kg/h)	Main motor power(kw)	line length(m)
16-40	51/105	80-120	18.5	22
16-63	65/132	120-250	37	25

Core Advantages

Extruder

Formula Flexibility: Highly tolerant to high-calcium filler formulations, reducing raw material costs.

Precision Temperature Air/Oil Cooling: Built-in screw core oil temperature circulation combined with automated barrel air-cooling fans.

Smart PLC Dashboard: Intuitive screen displays real-time current, melt pressure, and temperature.

Mould

Balanced 50/50 Flow Splitter.

Robust and safety design.

Streamlined Flow Design.

Chromed & Polished internal surfaces.

Vacuum Tank

Variable frequency drives (VFD) precisely manage vacuum levels, reducing air pressure fluctuations.

Stainless steel anti-corrosion build.

European water filtration system.

Positioned with optimized high-pressure spray nozzles for rapid.

Haul Off

Independent servo track synchronization.

Spiral adjustment for antivibration.

Strong frame and operation-friendly panel.

Diameter adjustment mark.

Cutter

Italian hydraulic system for less leakage.

Universal clamp for Various diameter.

High precision slewing mechanism system.

Fully automated length counter.

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FAQ

What are the main benefits of a Dual-Strand line compared to a Single-Strand line?

The primary benefit is efficiency and cost-effectiveness. For small pipe diameters 16-63mm, a single-strand line cannot run fast enough to use the full melting capacity of a medium-sized extruder. A Dual-Strand line utilizes that leftover capacity to produce two pipes at once. This doubles your output, halves your factory floor space requirement, reduces operator labor costs, and lowers your electricity bill per ton of pipe by up to 40%.

Can I run two different pipe diameters at the same time on a Dual-Strand line?

While it is technically possible because the downstream haul-offs and cutters are completely independent, we highly recommend running the same pipe size on both strands simultaneously. Running identical sizes ensures perfectly balanced pressure inside the die head, maximizing wall thickness accuracy and consistency across both strands.

What happens if one strand fails or needs a manual intervention? Do I have to stop the whole line?

No, you do not have to stop the entire line. Because MIDTECH designs the downstream equipment (vacuum tanks, haul-offs, and cutters) with completely separate dual-control systems, you can stop, adjust, or pull a new pipe through one strand while the other strand continues running at full production speed. This minimizes material waste and operator stress.

Is a Conical Twin-Screw Extruder suitable for high-calcium formulations on a dual-strand line?

Absolutely. Conical twin-screw extruders are the ideal choice for high-calcium PVC formulations. The progressive compression and robust shear design of the conical screws melt highly filled powder mixes seamlessly, delivering the high head-pressure required to feed a dual-cavity die smoothly.