Rubbe Extruder

Rubbe Extruder Manufacturer Overview

Rubbe Extruder solutions shape rubber compounds into profiles, hose, cable insulation, seals, sheets, and tread. Our team in Dongguan, China designs cold‑feed and hot feed models, with pin‑barrel mixing and silicone‑capable variants tailored to your formulation and throughput. We operate under ISO9001 and hold National High‑Tech Enterprise status. In‑house CNC machining and calibration labs support consistent build quality and stable output. Application‑specific die designs help shorten commissioning and improve yield. Contact Rubbe Extruder manufacturer to discuss your project or request a quote.

Why Choose Our Extrusion Equipment

We bring 17–18 years of experience, 20+ utility model patents, and participation in drafting national standards. Precision CNC machining holds tight tolerances on screws, barrels, and dies for efficient mixing and pressure stability. OEM/ODM options align screw geometry, metallurgy, and temperature control with your compound. More than 3,000 installations in 50+ countries and one‑to‑one support back reliable startup and lifetime performance.

Applications and Materials

• Materials: NR, SBR, BR, NBR, EPDM, CR, FKM/FPM, IIR, HNBR, and silicone.


• End uses: tire tread and sidewalls, weatherstrips and seals, hose and tubing, wire and cable insulation/sheathing, conveyor belts, gaskets, profiles, and rubber sheet calender feed.

Optimized L/D and temperature zoning support dispersion of fillers (carbon black, silica) and additives for consistent properties and surface quality.

Core Features and Options

• Stable output and efficient mixing with modular screws and hardened wear parts.


• Energy‑efficient drives; precise PID temperature control; safety interlocks.


• Options: pin‑barrel sections, vacuum venting, gear pump stabilization, quick screen changers, and die heads for profiles, tubing, and sheets.

Extruder Types

Cold‑Feed

Accepts room‑temperature strips or pellets to minimize preheating and improve control. Typical L/D 12–20 with an optimized compression ratio enables thorough plasticization and dimensional stability with reduced scorch risk.

Hot Feed

Takes pre‑warmed strips from mills for high throughput and legacy lines. Feed‑throat cooling and robust bearings support continuous operation with larger screw diameters and demanding compounds.

Lab‑Scale

Compact systems for R&D and QA provide torque, temperature, and pressure logging. They speed formulation screening and die trials while minimizing material use.

Silicone Processing

Low‑shear screws and accurate zone control protect polymer integrity and surface finish. Contact materials for food‑grade and medical applications are available on request.

Technical Parameters at a Glance

• Screw diameter: 45–200 mm. L/D: 12–20 (cold‑feed), 10–16 (hot feed). Special mixing sections for silica, halogenated rubber, and FKM.


• Output: approx. 50–1,000 kg/h, depending on viscosity, diameter, and die geometry. Gear pumps help maintain high throughput with tight tolerances.


• Drive and control: AC motors with inverter drives (15–355 kW). PLC + HMI with recipe storage, closed‑loop PID, and pressure/tension monitoring.


• Thermal management: Multi‑zone electric heating with water/air cooling. Feed‑throat cooling limits premature scorching. Optional insulation reduces losses.


• Safety/compliance: Safety covers, interlocks, E‑stops, and over‑pressure protection. Built under ISO9001; CE‑oriented electrical documentation on request.

Configuration and Line Integration

• Dies and heads: profile, tubing, sheet, cable; multi‑strand; adjustable land lengths; wear inserts for abrasive recipes.


• Downstream: cooling troughs, caterpillar haul‑offs, precision cutters, winders, and inline measurement for dimensional stability.


• Automation and data: recipe management, logging, and remote diagnostics to support traceability and faster troubleshooting.

Customization and Project Delivery

Tailor screw geometry, compression ratio, and metallurgy (nitrided, bimetallic) for abrasive or corrosive blends. Configure zone temperature, venting, and gear‑pump sizing to match die pressure and output goals. Projects include documented FAT/SAT, drawings, and maintenance kits.

Working Principle

Material is fed, plasticized, and homogenized by the rotating screw. Pressure builds in the metering section, and the compound is shaped through the die. Pin‑barrel, static mixers, and gear pumps fine‑tune mixing and pressure for smooth surfaces and accurate dimensions.

Installation, Commissioning, and Support

We assist with site planning, utilities, on‑site installation, and operator training. Spare parts, preventive maintenance, and remote support help sustain uptime. Global distributor partners extend local service response.

Selection Checklist for Rubbe Extruder

• Define compound, target output (kg/h), geometry, tolerances, and surface needs.


• Choose cold‑feed or hot feed; set L/D and mixing intensity.


• Evaluate vacuum venting and gear pump for dimensional control.


• Match motor power to die pressure and line speed.


• Confirm safety, controls, and downstream compatibility.

FAQs

Q: Which is better for high‑filler EPDM—pin‑barrel or standard screws?

A: Pin‑barrel sections typically improve dispersion and reduce die swell at similar throughput.

Q: When is a gear pump needed?

A: For tight tolerances or multiple small profiles, a gear pump stabilizes pressure and dimensions.

Q: Can you support silicone extrusion?

A: Yes. Low‑shear screws, precise thermal control, and suitable contact materials are available.

Related Testing Solutions

Support quality with DSC/TGA, abrasion and friction tests, universal tensile and impact testing, and environmental aging chambers (UV/Xenon, thermal shock).

Category‑Specific Insights

For silica‑filled treads, cold‑feed designs with L/D 16–20 balance mixing and temperature control; pin‑barrel sections help reach dispersion without excessive shear. For cable insulation, a gear pump and fine‑land die reduce surface defects and ovality. Silicone often benefits from lower compression screws and tighter zone control to avoid scorch and maintain gloss.