PVC Pipe Double Cavity Extrusion Line
A double cavity PVC pipe line that produces two pipes per cycle from one extruder, doubling output per kWh.
RAL 5021 · semi-matt finish
Production line introduction
How the PVC Pipe Double Cavity Extrusion Line is engineered, and which sub-assemblies protect the properties your customers actually buy.
A double cavity PVC pipe line that produces two pipes per cycle from one extruder, doubling output per kWh.
Every BENK line is matched to the material and product you actually sell. The extruder, die, calibration or forming section and the downstream automation are sized together, then assembled and trial run in our Zhangjiagang works before shipment, so the performance you see in the factory acceptance test is the performance you install. The machine frame is finished in RAL 5021 water blue with a semi-matt powder coating.
Technical Parameters of PVC Pipe Double Cavity Extrusion Line
Reference values for the standard configuration. Final width, thickness, speed and output are confirmed against your material, product drawing and target capacity.
| Item | Specification |
|---|---|
| Material | UPVC |
| Pipe diameter | 16 – 63 mm |
| Cavities | 2 |
| Extruder | SJZ 51/105 – 65/132 |
| Output | 120 – 450 kg/h |
| Cutter | Automatic planetary |
| Control | PLC with servo haul-off |
Need a model outside this table? Send us your sheet size, resin and target output — BENK will return a sized configuration with a budgetary price.
Production line technical advantages
Every sub-assembly below is selected to protect the properties your customers buy: transparency, gauge, strength and surface.
Conical twin screw extruder
High output with gentle shear for heat sensitive PVC, and a screw geometry matched to your pipe diameter and wall thickness.
Vacuum sizing and cooling
Multi-stage vacuum sizing tanks with spray cooling fix the pipe diameter and roundness across the full size range.
Haul-off and cutting
Caterpillar haul-off with servo control plus a chipless planetary or saw cutter hold length accuracy at full line speed.
Cavity flexibility
One extruder can feed one, two or four cavities to match the output and pipe size you sell.
Complete material preparation
Mixer, feeder, hopper dryer and granulator are supplied as one package so the formulation and the line work together.
RAL 5021 finish
The machine frame is powder coated in RAL 5021 water blue with a semi-matt finish.
Production line advantages
- Conical twin screw extruder — High output with gentle shear for heat sensitive PVC, and a screw geometry matched to your pipe diameter and wall thickness.
- Vacuum sizing and cooling — Multi-stage vacuum sizing tanks with spray cooling fix the pipe diameter and roundness across the full size range.
- Haul-off and cutting — Caterpillar haul-off with servo control plus a chipless planetary or saw cutter hold length accuracy at full line speed.
- Cavity flexibility — One extruder can feed one, two or four cavities to match the output and pipe size you sell.
Built to run
Material preparation, feeding, downstream handling and packing can be integrated into one turnkey scope.
Process flow
From raw material to finished pack, each station is matched in capacity so the line runs at the rated output without a bottleneck.
- Raw material mixing & drying
- Conical twin screw extrusion
- Melt filtration & die
- Vacuum sizing & cooling
- Haul-off
- Cutting
- Belling / socketing
- Stacking & packing
Wide applicability
Typical end uses for the material this line produces, based on the applications BENK equipment already serves worldwide.
Water supply and drainage
Pressure and non-pressure pipe for municipal water supply, drainage and sewer networks.
Conduit and cable protection
Electrical conduit, cable duct and protection pipe for construction and infrastructure.
Irrigation and industry
Agricultural irrigation, gas distribution and industrial process piping.
Options and auxiliary equipment
Configure the line for the market you sell into. Popular additions include:
- Automatic gravimetric dosing
- Multi-layer co-extrusion for core-skin pipe
- Belling machine and socketing line
- Automatic pipe stacking and bundling
- Online wall thickness gauge
- Edge trim and regrind recycling
Why buy from BENK Machinery
Extrusion specialists, not traders
BENK designs and builds extrusion lines in Zhangjiagang with an in-house R&D and process team, so machine selection is matched to your resin and product instead of a catalogue number.
Evidence before shipment
Every line is assembled and run in our works. You receive trial video, gauge and output records, and are welcome to attend the factory acceptance test.
Total cost, not lowest price
Energy-efficient drives, permanent magnet motors and optimized heating reduce kWh per tonne, which usually matters more over five years than the initial purchase price.
Real commissioning support
Our engineers install, commission, train your operators and stay involved until the line hits the specified output and quality on your material.
Spares and response
Critical spares are stocked for fast dispatch, and the Siemens Ethernet control platform allows remote diagnosis before a service visit is needed.
Upgrades as you grow
Co-extrusion, gauge control, automation and downstream equipment can be added later, protecting your original investment.
Frequently asked questions
The questions buyers ask most often about this pipe.
What pipe size range does the line cover?
How many cavities should I choose?
Which materials can be processed?
What is included in the delivery?
Get a quotation for the PVC Pipe Double Cavity Extrusion Line
Tell us the material, sheet or film size, target output and the country the line will be installed in. We will reply with a sized configuration, a budgetary price and an indicative delivery time.
- Telephone
- +86 512 5896 1463
- Mobile / WhatsApp / WeChat
- +86 159 5096 2426
- kpm@benkpm.com
- Address
- No.20 Huatang Road, Economic Development Zone (South District), Zhangjiagang City, Jiangsu Province, China
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Zhangjiagang City BENK Machinery Co., Ltd. · www.benkpm.com · Plastic extrusion lines and extruders since 2004.