yankee dryer cylinder to South Africa
yankee dryer cylinder to South Africa
yankee dryer cylinder
yankee dryer cylinder
Product Description
Yankee Dryer Cylinder is a core component in paper machines, utilizing steam-heated surfaces for efficient contact drying. Our Yankee Dryer Cylinder rapidly removes moisture from paper sheets, ensuring uniform smoothness, enhanced strength, and precise moisture control.
Our Yankee dryer cylinder offers several key advantages. It delivers high thermal efficiency for significant energy savings and provides exceptional durability for demanding high-speed production. As a result, it ensures long-lasting performance that supports consistent paper quality and lowers operational costs in modern mills.
Moreover, its characteristics—including high strength, pressure resistance, thermal conductivity, surface precision, lightweight construction, and high-speed adaptability—make it a preferred drying technology in today’s papermaking industry. Together, these features enable stable operation, extended service life, and improved overall efficiency.
Yankee dryer cylinders directly support the drying stage, which is the most energy-intensive part of papermaking. Therefore, they play a crucial role in improving paper quality, increasing production efficiency, and reducing energy consumption. Their core purpose is to efficiently, uniformly, and stably evaporate moisture from the wet paper web in the dryer section, thus shaping the sheet’s final physical properties and surface characteristics.
Technical Specifications of Yankee Dryer Cylinder
Below are typical technical parameters of our Yankee Dryer Cylinder. All dimensions can be customized according to your paper machine design.
| Parameter | Specification Range |
|---|---|
| Diameter | Φ1500 – Φ3680 mm |
| Face Width | 2000 – 10000 mm |
| Design Pressure | 0.3 – 0.8 MPa |
| Operating Temperature | Up to 180°C |
| Material | Cast Iron / Forged Steel |
| Surface Roughness | Ra 0.1 – 0.4 μm |
| Dynamic Balance Grade | G2.5 / G1.0 |
| Machine Speed Compatibility | Up to 2000 m/min |
| Heating Medium | Saturated Steam |
| Shell Thickness | Designed per pressure requirement |
How Does a Yankee Dryer Cylinder Work?
The Yankee Dryer Cylinder operates using high-pressure saturated steam as a heating source. Steam enters the internal chamber through a rotary joint and evenly distributes along the inner surface of the cylinder shell.
Working Process:
Steam enters the cylinder and transfers heat to the shell.
Heat is conducted through the metal wall to the wet paper web.
Moisture evaporates rapidly from the sheet surface.
Condensate formed inside the cylinder is continuously removed through an internal siphon system.
The dried paper sheet is creped off by a doctor blade to achieve the required softness and bulk.
Efficient condensate removal is critical to maintaining stable heat transfer and preventing thermal imbalance. Proper internal design ensures:
Uniform surface temperature
Stable high-speed operation
Reduced vibration
Improved drying efficiency
Because drying is the most energy-intensive stage of papermaking, the performance of the Yankee Dryer Cylinder directly determines energy consumption per ton of paper.
Delivery, shipping, and service
Delivery: We ensure on-time delivery while guaranteeing quality. Shipping: We use professional iron frames and fumigation-free wooden crates, along with flexible transportation options, to ensure the safe arrival of your goods.
Warranty: The entire unit is covered by a one-year warranty (excluding wear and tear).
Service: We provide on-site installation guidance from professional engineers and customized operator training.
Guarantee: For large orders, customers can choose to delay payment of 1%-3% as a quality deposit and pay after the goods are in normal operation.
FAQ
1. How to select the correct diameter of a Yankee Dryer Cylinder?
The diameter depends on machine speed, drying capacity, and production target. Larger diameters generally improve drying efficiency and stability of sheet formation.
2. What is the expected service life?
With proper maintenance, a high-quality Yankee Dryer Cylinder can operate for 10-20 years depending on operating conditions.
3. What maintenance is required?
Regular inspection should include:
Surface condition monitoring
Condensate system inspection
Bearing and rotary joint maintenance
Dynamic balance checking
Proper maintenance significantly extends service life.
