EX-G Series Plastic Pulverizer Machine

Suitable Materials

The EX-G Series is engineered for a broad spectrum of thermoplastic and elastomeric materials. Its carefully balanced disc geometry and controlled gap settings allow efficient size reduction across both rigid and flexible polymers while preserving material properties.

From standard commodity resins to high-performance engineering plastics and fluoropolymers, the EX-G platform adapts through adjustable disc clearance, rotor speed, and optional cooling systems. This versatility makes it ideal for compounders, recyclers, and specialty powder producers who process multiple material families on the same production line.

In-Depth Look at the EX-G Series Technology

Plastic pulverizing is a critical process step in many polymer value chains. Whether the goal is to create free-flowing powder for rotational molding, to produce fine particles for powder coatings, or to recycle post-industrial scrap into high-value feedstock, the quality of the pulverizer directly influences final product performance. The EX-G Series was developed to set a new benchmark in this field by combining mechanical precision, thermal management, and electrical sophistication.

Traditional pulverizers often rely on high-impact hammer mills or older-style pin mills that generate significant heat and produce broad particle size distributions. Excessive heat can cause melting, agglomeration, or degradation of sensitive polymers. Broad size distributions lead to poor flow, segregation during storage or transport, and inconsistent processing behavior downstream. The EX-G platform addresses these issues through a purpose-designed disc-mill geometry that prioritizes shear and attrition under controlled conditions rather than pure impact.

The specially developed disc system features carefully calculated tooth profiles, optimized clearance geometry, and high-precision balancing. Material enters the grinding chamber and is progressively reduced between the rotating and stationary discs. Because the energy is applied in a controlled manner across a large surface area, temperature rise remains modest even at high throughput. Optional water-cooling jackets and air-flow systems further protect heat-sensitive grades such as flexible PVC, certain polyamides, and specialty copolymers.

Particle size is adjusted primarily through disc gap setting and rotor speed. Operators can target the lower end of the range (near 0.1 mm) for applications requiring high surface area or ultra-fine coatings, or move toward 1–2 mm for free-flowing powders used in rotational molding or as process aids. The resulting powder exhibits excellent flow characteristics because the disc action produces particles with relatively uniform morphology and low fines content when properly tuned.

Material selection for the grinding elements is equally important. EXTRUTEX specifies German-grade stainless steels that combine hardness, wear resistance, and corrosion protection. These alloys maintain cutting edges longer than standard commercial steels, reducing the frequency of disc replacement and ensuring consistent particle quality over extended production campaigns. For highly abrasive materials such as glass-filled compounds or certain fluoropolymers, optional hard-facing or specialized wear-resistant coatings can be applied.

The electrical architecture of the EX-G Series reflects the same commitment to quality. Main drive motors are typically high-efficiency units from ABB or Siemens, selected for continuous duty and precise speed control via variable-frequency drives. Control cabinets incorporate Schneider Electric components for power distribution, safety interlocking, and operator interfaces. This standardization on globally recognized brands simplifies maintenance, training, and spare-parts logistics for international customers.

From a mechanical standpoint, the machines are built on heavy-duty frames that minimize vibration transmission. Rotor assemblies are dynamically balanced to high standards, contributing to quiet operation and long bearing life. Access doors and inspection ports are designed for rapid cleaning and change-over between material grades—an important consideration for toll processors and multi-product plants.

Dust management and safety receive particular attention. The grinding chamber is sealed to contain fine particles, and the machines can be integrated with industrial dust-collection systems. Safety interlocks prevent access to moving parts during operation, and emergency-stop circuits follow European machine-directive principles even though final assembly occurs in China.

Capacity scaling across the EX-G family follows a logical progression. The EX-G300, powered by a 40 HP main motor, serves pilot plants, research facilities, and smaller production lines. The EX-G450 (60 HP) and EX-G600 (100 HP) cover mid-range industrial requirements, while the EX-G800 with its 175 HP drive is intended for high-volume continuous operation. Frame sizes, grinding chamber volumes, and overall footprints increase correspondingly, as detailed in the technical specifications table below.

Because manufacturing takes place in Nanjing and Shanghai under Austrian design supervision, EXTRUTEX achieves an attractive balance of cost and performance. Critical components—discs, bearings, seals, and electrical packages—are either imported from Europe or produced to exacting European specifications. Final assembly and factory acceptance testing occur under controlled conditions, with documentation packages that meet international quality-system requirements.

Applications for EX-G Series pulverizers span multiple industries. Rotational molders use the machines to convert virgin or recycled polyethylene into free-flowing powder that fills complex molds evenly. Powder-coating producers rely on precise particle size control to achieve consistent film thickness and appearance. Compounders and masterbatch manufacturers pulverize additives and specialty polymers for better dispersion. Recyclers convert clean post-industrial scrap into saleable powder grades. In each case, the combination of controlled particle size, low heat history, and clean stainless-steel construction delivers measurable process advantages.

Long-term ownership costs are further reduced by the use of standardized European electrical components. Service technicians familiar with ABB, Siemens, or Schneider systems can diagnose and repair control issues without specialized training unique to proprietary hardware. Spare motors, drives, and contactors are available through global distribution networks, minimizing downtime risk for plants operating in remote locations.

EXTRUTEX supports customers throughout the equipment lifecycle. Initial process trials can be conducted at our facilities or on-site with demonstration units. Installation supervision, operator training, and preventive-maintenance programs are available. For customers with unique requirements—such as explosion-proof execution, special surface finishes, or integration with upstream granulators and downstream classification systems—our engineering team develops customized solutions while retaining the core reliability of the EX-G platform.

In summary, the EX-G Series Plastic Pulverizer represents a thoughtful synthesis of Austrian mechanical design, German material and electrical standards, and efficient Chinese manufacturing. It is engineered for processors who refuse to compromise on powder quality, equipment uptime, or long-term operating economics. Whether you are upgrading an existing pulverizing line or specifying equipment for a new plant, the EX-G family offers a proven path to consistent, high-performance powder production across a wide range of polymers and applications.

Why Choose EXTRUTEX EX-G Series?