Comrise Machinery, a professional manufacturer in China, supplies PVC Cable Trunking Machines for producing rigid PVC cable trunking profiles, including rectangular ducts, D-section conduits, snap-fit covers, and other electrical cable management profiles.
Based in Qingdao, China, Comrise configures extrusion lines with matching extrusion, calibration, cooling, haul-off, and cutting units according to profile design, production requirements, and installation conditions.
Machine Overview
Our PVC Cable Trunking Machine is a complete extrusion line for continuous production of rigid PVC trunking profiles. The line integrates extrusion, die and mold forming, vacuum calibration, water cooling, haul-off, and automatic cutting to help maintain consistent profile dimensions and surface quality throughout production.
The configuration can be adapted to different trunking widths, cross-sections, production capacities, and downstream requirements. For profiles with snap-fit covers or other defined engagement geometry, the die, mold, calibration, cooling, and haul-off sections need to work together to maintain dimensional consistency during forming.
Key Component Performance
1. Conical Twin-Screw Extruder
The conical twin-screw extruder is used for processing rigid PVC compounds and provides the controlled plastication and extrusion required for profile production.
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Feature
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Performance Advantage
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Conical Screw Design
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High compression ratio ensures thorough plastication of PVC powder
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Bimetallic Barrel
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Wear-resistant lining extends service life by 3–5 times
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Multi-Zone Oil/Water Heating
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Precise temperature control for consistent melt quality
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High-Torque Gearbox
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Reliable power transmission for stable output at maximum speed
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Servo-Driven Main Motor
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Energy-efficient; reduces power consumption by up to 20%
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2. Die Head & Mold Assembly
The die head and mold assembly determines the initial profile geometry and is particularly important for maintaining channel dimensions and snap-fit features.
CFD-Optimized Flow Channels: Where applied, optimized flow-channel design helps improve melt distribution across complex profile cross-sections.
Mirror-Polished Cavity Surface: A polished cavity surface supports a smoother profile finish and can reduce surface defects associated with the forming surface.
Multi-Zone Independent Heating: Separate heating zones help maintain the required temperature conditions across the die and mold during continuous operation.
Quick-Change Design: A quick-change mold configuration can reduce the time required to replace tooling between different trunking sizes, depending on the machine and tooling arrangement.
3. Water-Cooled Shaping Platform
The water-cooled shaping platform continues cooling and stabilizes the PVC profile after calibration before the profile reaches the downstream equipment.
Extended Length Design: 4 m, 6 m, and 8 m cooling configurations can be selected according to the line layout, profile characteristics, and required cooling conditions.
4. Haul-Off Unit
The haul-off unit pulls the calibrated and cooled profile through the line at a controlled speed. Consistent pulling conditions are important for maintaining profile dimensions and reducing deformation during downstream processing.
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Feature
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Performance Advantage
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Top & Bottom Belt Drive
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Even pulling force prevents profile twisting or bending
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Soft Rubber Pads
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Non-marking surface protects delicate trunking surfaces
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Servo Motor Control
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Synchronizes precisely with extruder speed for tension-free operation
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Pneumatic Pressure Adjustment
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Consistent grip force regardless of profile thickness
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5. Automatic Cutting Machine
The automatic cutting machine cuts finished trunking profiles to the required length for packaging, handling, or downstream installation.
Planetary or Circular Saw Type: The cutting method can be selected according to profile geometry and line configuration.
Servo-Controlled Travel Carriage: The carriage moves with the profile during cutting to support clean and repeatable cutting operations.
Cut Length Accuracy: Controlled cutting helps maintain consistent finished lengths between production batches.
Product Applications
The PVC Cable Trunking Machine is suitable for producing rigid PVC cable management profiles for electrical and industrial applications.
Electrical Wiring
For residential, commercial, and building wiring systems requiring organized cable routing.
Control Cabinets
Produces PVC wiring ducts and trunking for electrical panels, control cabinets, and automation equipment.
Industrial Cable Management
Suitable for cable routing around machinery, workshops, factories, and equipment installations.
Snap-Fit Trunking
Used to produce trunking with clip-on or snap-fit covers for convenient cable installation and maintenance.
Custom Cable Profiles
Supports custom trunking sizes and profile designs based on specific drawings, dimensions, and tooling requirements.
Why Customers Choose Our PVC Cable Trunking Machine
Snap-Fit Precision:Calibration accuracy ensures covers click securely into place every time
High-Speed Production:Optimized cooling and haul-off enable faster line speeds without quality loss
Stable 24/7 Operation:Robust components and precise controls minimize unscheduled downtime
Fast Commissioning:Our engineers typically complete setup in 4–6 days
Comprehensive Support:Global spare parts availability and remote troubleshooting
FAQ
Q1: What sizes of cable trunking can this machine produce?
A: The standard configuration can cover trunking widths from 15 mm to 100 mm, while a high-output configuration can handle widths of up to 200 mm, depending on the selected extrusion line and tooling. Custom sizes can also be evaluated according to the required profile dimensions and production conditions.
Q2: Can the machine produce both solid-bottom and perforated trunking?
A: Yes, where the line is configured for this application. Perforated trunking requires suitable calibration tooling and a punching attachment, and the final configuration depends on the profile design and required production process.
Q3: Does the machine support co-extrusion for soft sealing lips?
A: An optional co-extrusion attachment can be configured for applications requiring a soft PVC sealing lip on the trunking cover. The suitable co-extrusion arrangement should be confirmed according to the profile structure and material requirements.
Q4: Do you provide on-site installation and training?
A: On-site installation and commissioning can be arranged according to project requirements. Operator training can cover startup procedures, basic machine adjustments, routine cleaning, and equipment maintenance. Remote technical support can also be provided where applicable.
Customer Testimonial
"We started with a single trunking line from Comrise machinery. The snap-fit quality was so consistent that our customers stopped complaining about loose covers. Within 18 months, we ordered two more lines. Commissioning took only 5 days each time."
— Operations Manager, Middle East Electrical Accessories Manufacturer
Ready to have a new PVC Cable Trunking Machine?
Contact our team today for a customized quotation, technical drawing package, or online machine demonstration.
