Product Name:

Hot Calendering Machine

Product Details:

Application:

Used for post-processing to heat-set, flatten, and smooth the product, achieving the desired surface finish.

Material Selection:

The machine utilizes high-quality alloy steel or stainless steel (grades 304, 312) seamless tubing.

Manufacturing Process:

Undergoes multiple advanced processing steps—including alignment, precision inner-bore boring, welding, annealing, precision turning, grinding, surface treatment (chrome plating or Teflon coating), regrinding, and mirror polishing—to ensure a smooth, precision finish.

Main Specifications:

• Model Types: 2-roll, 3-roll, 2-roll with cold-pressing, 3-roll with cold-pressing

• Roll Width: 1.5m – 8m

• Roll Diameter: Standard Φ400, Φ420, Φ600 (Custom: Φ155 – 800mm)

• Wall Thickness: Standard 20mm, 30mm, 40mm (Custom: 16mm – 40mm)

• Operating Temperature: Ambient to 250°C

• Surface Temperature Uniformity: ±1°C

• Radial Runout: ≤0.03mm – 0.1mm

• Line Speed: 5 – 50m/min

• Heating Method: Electric heating or external thermal oil heating

• Pressing Method: Pneumatic cylinder, manual/electric hybrid, or manual lifting via speed reducer.

Structural Features:

Structure: 

Composed of high-precision hot calendering rolls, an integrated frame (no special foundation required), water-cooled bearing housings (ensuring low-temperature bearing operation), versatile lifting mechanisms, a variable-frequency drive system, and a control unit.

Features:

The hot calendering rolls are made from high-efficiency heat-transfer seamless tubing; after multi-stage processing, they feature uniform wall thickness and a smooth surface. Surfaces can be Teflon-coated (non-stick for materials like hot-melt cotton and polypropylene) or chrome-plated with a mirror-polished finish (achieving a Grade 12 surface finish). Gap, temperature, and speed settings feature digital displays and automatic control. Temperature uniformity across the roll surface (left, center, right) is maintained within ±1°C.