The 16-cylinder needle valve hot runner system is a specialized hydraulic needle valve system designed for high-cavity-count, high-precision, high-volume mass production, specifically tailored for precision multi-cavity molds with 16 cavities per mold. Compared to conventional pneumatic cylinder needle valves, this system utilizes hydraulic cylinder drive, delivering greater force, smoother operation, and superior sealing performance when the valve needles close. It is suitable for the long-term, stable mass production of high-pressure, high-viscosity, glass-fiber-reinforced, and high-temperature engineering plastics, making it the premium standard solution for precision multi-cavity molds.

Product Features

Fully Balanced Material Injection Across 16 Cavities

Featuring a multi-layer symmetrical manifold structure with mirror-polished runners and equal-length, equal-volume flow distribution, this system ensures highly consistent filling speed, pressure, and temperature across all 16 cavities. It delivers exceptional uniformity in product weight and dimensions, completely eliminating issues such as material imbalance, short shots, and defects in individual cavities commonly found in multi-cavity molds.

Hydraulic Cylinder Drive for Stability Far Exceeding Pneumatic Cylinders

Hydraulic drive ensures uniform thrust, high closing pressure, no vibration, and no air pressure fluctuations. During high-speed continuous production, there is no pin jamming, material leakage, or drooling. It is suitable for high-pressure injection molding, glass-fiber-reinforced materials prone to wear, and high-temperature materials prone to drooling, maintaining consistent precision over the long term.

Zero Gate Marks and Sprue-Free Fully Automated Production

Mechanical valve pins forcibly sever the material flow, resulting in smooth, clean gates free of stringing, cold material, or tailing. Products require no post-processing or sanding and fully meet mass production standards for cosmetic parts and precision assemblies.

Precise Temperature Control for Independent Zones

Each of the 16 nozzles features independent heating and temperature measurement with a control accuracy of ±1°C. Heat is distributed evenly, eliminating issues such as concentrated heat buildup in multi-cavity molds, localized carbonization, material blockages, and yellowing. Color changes are clean, with minimal residual material.

High-Strength, Durable Structure

The manifold is integrally forged from H13 die steel, featuring dead-angle-free, low-shear runners; hot runners and valve pins are made of high-hardness nitrided materials, offering wear resistance and resistance to deformation, making them suitable for long-term, 24-hour automated mass production with a low maintenance rate.

Core Advantages

High Throughput: Synchronous molding of 16 cavities per mold significantly boosts production efficiency, making it ideal for high-volume orders

High Stability: Hydraulic-driven valve closure ensures a tight seal, preventing material overflow or dripping during high-pressure injection molding

High Yield Rate: Precise multi-cavity balancing ensures excellent product consistency and a low defect rate

High Versatility: Compatible with ABS, PC, PA66, PBT, LCP, glass-filled, flame-retardant, and transparent materials, among others

More Stable Cycle Times: No cooling time required for sprues, resulting in short molding cycles and stable production rhythms

Suitable Product Applications

Precision electronic components, connector terminals, sealing O-rings, small structural parts, precision medical components, small household and personal care items, new energy insulation components, standard multi-cavity mass-production molds, and high-pressure engineering plastic molds.