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High Speed Dynamically Balanced Steel Roller with Mirror Chrome for Industrial Roller Lines

High Speed Dynamically Balanced Steel Roller with Mirror Chrome for Industrial Roller Lines

  • High Speed Dynamically Balanced Steel Roller with Mirror Chrome for Industrial Roller Lines
High Speed Dynamically Balanced Steel Roller with Mirror Chrome for Industrial Roller Lines
Product Details:
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Detailed Product Description
Highlight:

Dynamically Balanced Steel Roller

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High Speed Coating Roller

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Film Laminating Line Roller

Product Overview

The High Speed Dynamically Balanced Steel Roller is engineered for the most demanding web handling duties, where line speeds climb and even the slightest imbalance turns into vibration, chatter, and web flutter. Each roller is machined from alloy steel, hardened, ground, and then dynamically balanced to G2.5 grade on a calibrated balancing machine. The result is a roller that spins smoothly at elevated RPM, holding tension steady and protecting both the web and the bearings. Finished with a mirror chrome face and checked for concentricity below 0.02 mm, it is the roller of choice for coating, laminating, and film converting lines that refuse to slow down.

Key Features
  • Dynamically Balanced G2.5: Precision balancing removes residual imbalance, eliminating vibration and chatter during high-speed rotation.
  • Mirror Chrome Face: A Ra 0.01 mirror finish supports uniform coating weight and smooth web release at high line speeds.
  • Alloy Steel Construction: Stress-relieved alloy steel resists deflection under tension and maintains straightness run after run.
  • Low Concentricity Tolerance: Concentricity within 0.02 mm keeps tension even and prevents web wander or edge wrinkling.
  • Heat and Speed Ready: Designed to run continuously at elevated RPM without thermal distortion or bearing overload.
  • Custom Shaft and Journal: Journals, keyways, and shaft details are machined to match your coating or laminating machine perfectly.
Technical Specifications
Parameter Specification
Base Material Alloy Steel / 45# Seamless Pipe
Surface Treatment Hard Chrome Plating, Mirror Polished
Surface Roughness Ra 0.01
Balance Grade G2.5
Concentricity < 0.02 mm
Diameter Range 80 mm – 1000 mm
Length Range 300 mm – 6000 mm
Max Line Speed High Speed, up to 400 m/min
Standard ASTM, DIN, GB
Applications

Dynamically balanced steel rollers are widely used in film coating and laminating lines, BOPP and BOPET converting equipment, adhesive and hot-melt coaters, printing presses, and high-speed slitting or rewinding machines that cannot tolerate vibration or tension fluctuation.

Packaging & Quality Assurance

Rollers are individually marked with their balance report, wrapped in anti-rust paper, and secured inside a fumigated wooden case with foam support. Dynamic balance and roughness data are provided for record.

A 12-month guarantee applies, and OEM drawings are welcomed by ST. KEY of Changzhou.

Contact Details
Changzhou ST.Key Imp & Exp Co., Ltd

Contact Person: Mr. Yun

Tel: +8613951236008

Fax: 86-0519-86315782

Send your inquiry directly to us (0 / 3000)

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