Qingzhou Suba Machinery Co., Ltd. (Qingzhou, Shandong Province, China) is a recognized technological leader in the design and manufacture of high-speed extrusion machinery. Driven by a robust R&D foundation and proprietary patented technologies, officially designated as a "High-Tech Enterprise" by Shandong's Department of Science and Technology.
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Why manufacturers choose Suba Machinery
High Speed & Stability
Our lines are engineered for continuous operation at maximum speeds without compromising product quality.
Patented Cooling System
Unique closed-loop horizontal water cooling system for the corrugator, ensuring perfect pipe geometry and high forming efficiency.
Raw Material Savings
Suba Machinery equipment efficiently processes both virgin and recycled polymer materials (HDPE, PP), reducing raw material costs.
Stable Performance
Patented design keeps downtime to a minimum -- fewer stops, more output.
After-sales Service
24/7 online support, installation, commissioning, and operator training. Remote diagnostics from China in real time.
Global Delivery
Exported to manufacturers across Asia, Europe, Africa and South America. Factory installation, commissioning, and operator training included.
From your initial request to production launch — our proven process
Tell us what pipes you need to produce — diameter, material, volume. We respond within 24 hours.
Our engineers review your specs and recommend the right production line model and configuration.
We agree on the equipment, timeline, and terms. Your production line is manufactured and tested.
Equipment ships to your factory. Our team handles installation, setup, and operator training on-site.
Watch videos of our production lines running at customer facilities worldwide
Already have a Suba machine? We supply original components — extruders, die heads, corrugators, moulds, and more.
Suba machinery corrugated pipe extrusion line includes automatic feeding system and hopper with drying function. The developed SJ65, SJ75, SJ90, SJ120, SJ150 extruders use a buffering mixing section and large L/D ratio screws, which has a good plasticization, high output and wide adaptability to raw materials; the feeding section with a spiral buffer design, direct water cooling and automatic temperature control system, which can increase the conveying efficiency at the feeding end. Bimetallic screw and barrel effectively improve the wear resistance and corrosion resistance, service life is increased by 2-3 times; Extruder is equipped with a fine-tuning base to make sure a better connection with the die head; Gearbox adopts vertical structure which achieves compact structure, low noise index, strong carrying capacity and high transmission efficiency; The optimized co-extrusion system of multiple extruders achieves optimal matching production of various specifications. The production of small sized products does not cause waste of the extrusion system, and the production of large sized products has sufficient output.
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The blank is extruded from the extruder through the inner and outer die of the double layer pipe die head. Double layer pipe die head is suitable for HDPE and PP materials. Die head is fixed on the die head bracket, and die head replacement is simple and quick. Suba die head short channel design (shorten about 25%), effectively lower down the melt pressure, achieves low temperature low pressure extrusion, production efficiency increases 25%; The low extrusion melt pressure reduces requirement of parts, the material leakage risk at the connection is greatly reduced. The double channel starts from the die head body and reaches the die exit, it achieves multi extruders extrude two layers. The optimized design of double layer pipe die head, the inner and outer wall thickness adjustment is very stable and convenient, which achieves dynamic adjustment, no need to stop extruders, no need to loosen any fastening screws, shorten adjustment time and reduce the material leakage risk.
View LineOur most requested pipe extrusion lines — from cable protection to large infrastructure drainage.
ID32–OD200mm double wall corrugated pipes. For cable protection, water collection, ventilation system, bridge and drainage.
ID100–OD630mm double wall corrugated pipes. For drainage and sewage.
ID600–OD1400mm double wall corrugated pipes. For drainage, sewage and storm water.
