bi-oriented film rolls

Engineered for high-speed plastic film orientation lines, our High-Precision MDO Stretching Roll is the definitive solution for achieving precise thickness uniformity and excellent mechanical properties during longitudinal drawing. Operating under high-tension and high-ratio speed differentials, this stretching roller features superior surface wear resistance and optimized friction coefficients to prevent film slippage and cosmetic micro-scratches. Crafted from premium-grade alloy steels, it utilizes advanced internal fluid designs (such as double-shell spiral channels) to ensure rapid and uniform thermal distribution across the entire face width with a tolerance within ±0.5°C. Coated with specialized hard chrome, ceramic, or anti-stick tungsten carbide (WC-Co) coatings, our MDO Stretching Roll delivers a flawless surface finish (up to Ra≤0.01μm) and extreme geometric accuracy, significantly reducing web-breaking rates and boosting the structural yield of advanced functional films.

Engineered for high-speed polyfilm post-stretching and relaxation stages, our High-Precision PRS Cooling Roll delivers exceptional stress-relieving and thermal-stabilization performance. Positioned as a critical finishing component, this cooling roller utilizes state-of-the-art internal fluid dynamics to instantly lock in polymer molecular orientation and eliminate residual thermal stresses. By maintaining an ultra-uniform surface temperature profile with variations strictly within ±0.5°C, it effectively prevents web wrinkling, shrinkage, and high-speed film flutter. Crafted from premium-grade steel cores and coated with a heavy-duty, super-mirror hard chrome layer, Huatao PRS Cooling Roll operates precisely above dew point thresholds to eliminate local condensation defects, ensuring ultimate gauge uniformity, flatness, and pristine optical clarity for your premium packaging and functional films.

Engineered to withstand continuous high-voltage, high-frequency electrical discharge, our High-Precision Corona Roll (Corona Backing Roller) is the industry benchmark for flawless web surface activation. Operating under severe dielectric stress and intense ozone environments, this roller serves as the critical grounded counter-electrode on modern film extrusion, coating, and converting lines. It is engineered with proprietary high-performance insulation layers—including premium vulcanized silicone rubber or advanced plasma-sprayed industrial ceramics—delivering exceptional dielectric strength and zero pinhole breakdown risks. Featuring sub-micron geometric tolerances and rigorous ISO G1.0 dynamic balancing, our Corona Roll eliminates micro-vibrations and air gaps, securing completely uniform dyne-level improvement up to 48+ dynes/cm across expansive web widths without back-side treatment defects.

Engineered as the definitive defense against back-side discharge defects, our High-Precision Corona Nip Roll (Corona Pressure Roller) ensures flawless web adherence in high-speed surface treatment sections. Positioned at the entry point of the corona station, this roll applies a perfectly synchronized, uniform linear pressure to completely expel the boundary layer air trapped between the film substrate and the main corona backing roll. Wrapped in proprietary ozone-resistant and high-dielectric elastomers—such as specialized vulcanized silicone or high-tear synthetic rubber—it eliminates localized voltage arcing and pinhole generation. Backed by rigorous ISO G1.0 dynamic balancing and micro-precision geometric tolerances (≤0.01mm), our Corona Nip Roll guarantees scratch-free contact and zero mechanical slip at speeds exceeding 600 m/min, securing immaculate single-sided treatment for premium flexible packaging and functional films.

Engineered to withstand severe thermal radiation while safeguarding delicate polymer webs, our High-Precision Flame Treatment Roll (Flame Treatment Backing Roller) is the industry standard for high-efficiency surface activation. Positioned directly opposite high-output gas burners on modern film orientation and coating lines, this roller utilizes an advanced internal double-shell multi-spiral channel design to provide maximum heat dissipation. By maintaining a perfectly uniform surface temperature profile, it prevents film melting, thermal shrinkage, and wrinkling under intense flame exposure. Crafted from premium alloy steel, the super-mirror chrome-plated surface ensures zero-defect web guiding and absolute resistance to high-temperature oxidation. Backed by rigorous ISO G1.0 dynamic balancing, our Flame Treatment Roll guarantees optimal, uniform dyne-level improvement for flawless downstream printing and lamination.

Engineered to serve as the highly responsive "sensory core" of high-speed web handling lines, our High-Precision Tension Metering Roll (Tension Measuring Roller) delivers unmatched feedback accuracy for closed-loop tension control systems. Positioned across critical web paths in film orientation, slitting, and precision coating lines, this roller is engineered with an ultra-low rotational inertia shell—utilizing aviation-grade aluminum alloys or thin-walled carbon steel. It eliminates mechanical lag, ensuring that even microscopic web tension fluctuations are transmitted instantly and friction-free to the connected load cells. Featuring sub-micron total indicator runout (≤0.005mm) and strict ISO G1.0 dynamic balancing, our Tension Metering Roll prevents roller-induced signal noise and web vibration, guaranteeing flawless gauge consistency and scratch-free guiding for your premium packaging and functional films.