Hollow Wall Winding Pipe Production Line
A spiral winding line producing large diameter hollow wall pipe for drainage, culverts and storage tanks.

RAL 5021 · semi-matt finish
Production line introduction
How the Hollow Wall Winding Pipe Production Line is engineered, and which sub-assemblies protect the properties your customers actually buy.
A spiral winding line producing large diameter hollow wall pipe for drainage, culverts and storage tanks.
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 Hollow Wall Winding Pipe Production 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 | HDPE, PP |
| Pipe diameter | 300 – 3000 mm |
| Extruder | SJ 90 – SJ 120 + winding unit |
| Output | 300 – 1000 kg/h |
| Structure | Single or double wall spiral |
| Control | PLC with winding synchronization |
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.
Mould block forming
Continuous mould block chains with water cooling form the corrugation and hold pitch and depth stable at production speed.
Inner and outer layer control
For double wall pipe, separate extruders feed the inner and outer layer so wall thickness ratio can be optimized.
Vacuum and cooling
Vacuum assisted forming plus staged cooling prevent deformation when the pipe leaves the mould blocks.
Servo haul-off
Servo driven haul-off matched to the corrugation keeps the pipe round and the cut square.
Compact footprint
The mould block loop is arranged for a short floor footprint, which matters when the line is installed in an existing hall.
RAL 5021 finish
The machine frame is powder coated in RAL 5021 water blue with a semi-matt finish.
Production line advantages
- Mould block forming — Continuous mould block chains with water cooling form the corrugation and hold pitch and depth stable at production speed.
- Inner and outer layer control — For double wall pipe, separate extruders feed the inner and outer layer so wall thickness ratio can be optimized.
- Vacuum and cooling — Vacuum assisted forming plus staged cooling prevent deformation when the pipe leaves the mould blocks.
- Servo haul-off — Servo driven haul-off matched to the corrugation keeps the pipe round and the cut square.
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 feeding
- Inner layer extrusion
- Outer layer extrusion
- Mould block forming
- Vacuum cooling
- Haul-off
- Cutting
- Stacking
Wide applicability
Typical end uses for the material this line produces, based on the applications BENK equipment already serves worldwide.

Stormwater drainage
Corrugated drainage pipe for roads, airports and municipal stormwater systems.
Cable and conduit protection
Flexible and rigid corrugated conduit for buried and above ground cabling.
Sewer and leachate
Double wall and winding pipe for sewer, leachate collection and culvert projects.
Options and auxiliary equipment
Configure the line for the market you sell into. Popular additions include:
- Mould block sets for additional pipe sizes
- Online perforation for leachate pipe
- Automatic coil winding for small conduit
- Double wall inner layer extruder
- Online wall thickness measurement
- Crusher and regrind recycling for start-up scrap
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 corrugated.
What is the difference between single wall and double wall corrugated pipe?
How is the corrugation formed?
What sizes can be produced?
Can you supply the mould blocks?
Get a quotation for the Hollow Wall Winding Pipe Production 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
Related extrusion lines
Zhangjiagang City BENK Machinery Co., Ltd. · www.benkpm.com · Plastic extrusion lines and extruders since 2004.

