PVC Cable Trunking Extrusion Line

+25% Output Efficlency

-15% Energy Consumption

99.6% Stable Operation Rate

Why our plastic profile extruder stands out

Through a special pipe extruder barrel water sleeve and screw design, optimized L/D rate to 40D , thereby achieving a 10% increase on extruder output.
With mono- and multi-layer A/B/C HDPE pipe co-extrusion technology, an optimal balance is achieved between raw material savings and energy consumption reduction.
Applying a special co-extrusion HDPE mould flowing channel technology, time efficiency in plastic HDPE pipe die wall thickness changing is improved by 60%.
Adopting pipe extruder 4.0 that integrates automatic heating, data monitoring, remote control and auto gravimetric feeding , achieving integrated and precise control.

Midtech HDPE pipe extruder suitable for Irrigation industry, pressure pipe and gas pipes with diameter starting from 16-1200mm. We always have a wide range of different extruders and pipe heads available, enabling us to process HDPE, PP, PPR, and engineering polymers necessary for the industry. Discover the efficiency and sustainability by Midtech extruder machine, the quality and innovation ensures to meet diverse need of various plastic pipe applications in which plastic pipe are utilized.

Parameter

Main Extruder	Max Output Capacity(kg/h)	Main Motor Power(kw)	Common Trunking Sizes(mm)
SJSZ 55/110 Conical	120 - 180	22	16x16, 25x16, 40x25
SJSZ 65/132 Conical	150 - 250	37	40x40, 60x40, 80x40
SJSZ 80/156 Conical	300 - 450	75	100x50, 100x100+

Core Advantages

Extruder

High-Calcium Wear Resistance: Features bimetallic nitrided screws and barrels treated with tungsten carbide alloy coatings.

Abrasive Formulation Longevity: Built explicitly to withstand highly abrasive, cost-saving PVC powder formulations.

Siemens Main Motor Drive: Driven by premium, energy-efficient Siemens main motors for consistent torque output.

ABB Speed Synchronization: Regulated via ABB variable frequency drives to ensure uniform low-temperature plasticization and stable material head-pressure.

Mould

Dual-Strand High-Yield Engineering: Offers customized dual-strand mold configurations for smaller trunking sizes.

Maximized Extrusion Output: Effectively doubles the entire line production output on a single main extruder.

Hard-Chrome Plating: Internal flow channels are hard-chrome plated to completely eliminate material stagnation.

Mirror-Polished Cavity Finish: Shaped to form precise interlocking snap-clips without any material burning.

Vacuum Calibrator

Rigid SUS304 Stainless Steel Bed: Elongated, heavy-duty construction to prevent profile bowing or sagging.

High-Capacity Vacuum Pumps: Built with powerful water-ring vacuum pumps and clean centralized manifold layouts.

Steady Negative Pressure: Applies constant, non-pulsing negative pressure across all calibration zones.

3D Micro-Adjustable Handwheels: Handwheels provide precise 3D micro-adjustments to solidify complex track shapes without shrinking or warping.

Haul Off

Multi-Caterpillar Track Configuration: Utilizes heavy-duty dual or single-track caterpillar haul-off systems.

Non-Marking Traction Blocks: Equipped with custom-formulated, high-friction rubber pads that grip profiles firmly.

Anti-Indentation Grip Protection: Securely pulls the profile without causing surface indentations or cell wall deformation.

Punching Unit

High-Speed Pneumatic Hole Slotting: Integrates an advanced online mechanical or pneumatic punching press system.

In-Line Base Stamping Fabrication: Stamps wall-mounting holes directly onto the bottom base of the running trunking.

Real-Time Velocity Synchronization: Stamping speed automatically syncs with the overall line velocity via the central PLC.

Uniform Pitch Distance Control: Automatically maintains an exact, uniform pitch distance between all mounting slots.

YOUR PARTNER IN PLASTIC PROCESSING

Midtech transforms plastics into possibilitles.

ConticLus today tarlormereebuut our torpliele pluasli processing solutions.

FAQ

How does MIDTECH guarantee that the cable trunking lid and base will snap together perfectly?

The locking clip geometry of PVC cable trunking requires extremely tight dimensional tolerances. MIDTECH achieves this through high-precision mold engineering combined with independent, non-pulsing vacuum control circuits on our calibration table. This prevents the hot PVC from relaxing or shifting as it cools, locking the dimensions within a strict 0.5mm tolerance so the lid clicks securely onto the base.

Yes, you can produce both components on the same line. Because the base and lid are separate profiles, you simply swap out the extrusion die blocks and calibration sizing sleeves to switch production from bases to lids. For smaller, high-volume sizes, we highly recommend our dual-strand die heads, which allow you to extrude the base and the lid side-by-side simultaneously.

What is the advantage of using a Conical Twin-Screw Extruder instead of a Single-Screw Extruder for this line?

Cable trunking is a structural profile that relies on affordable PVC dry-blend formulations containing significant amounts of calcium carbonate filler. Single-screw extruders cannot feed raw powder blends directly and will experience rapid wear from abrasive fillers. The Conical Twin-Screw Extruder provides positive-displacement feeding, superior mechanical mixing at low temperatures, and a bimetallic construction designed specifically to handle high-calcium mixes safely.

Is the online punching unit mandatory, and can it do different hole patterns?

The online punching unit is an optional but highly recommended upgrade if you want to deliver retail-ready trunking with pre-drilled mounting slots. The unit uses a modular punch-die set, meaning you can easily swap out the internal steel pins to alter the shape, size, or layout of the wall-mounting holes according to different regional electrical installation standards.