Top 10 Encoder Applications in the Pulp and Paper Manufacturing Industry

AMS aims to promote Leine Linde encoder solutions in the Vietnamese market, with a strong focus on pulp and paper manufacturers. This article provides an overview of the pulp and paper industry and highlights 10 key encoder applications across different production stages.

We hope this content delivers the technical insights you are looking for. If you want to save time and receive faster, expert support, contact AMS today to consult directly with our technical specialists.

1. Overview of the Pulp and Paper Manufacturing Industry in Vietnam

According to a recent report by the Vietnam Pulp and Paper Association (VPPA), the production and business performance of Vietnam's paper industry in the first nine months of 2025 shows a clear recovery in paper consumption, with a positive growth trend.

Compared to 2024, total domestic paper consumption reached 6.41 million tons, representing a 12.2% year-on-year increase. This is a positive signal, as consumption demand is a key driver for industrial growth.

However, in contrast to rising consumption, domestic paper production has slowed due to both local and global factors. Compared to the same period in 2024, total output reached only 5.57 million tons, a 2.8% decrease. Production is mainly focused on meeting domestic demand, while both exports and imports have declined. Import fluctuations across segments indicate the industry's flexible response to market demand.

Although the pulp and paper industry has not achieved major breakthroughs recently, its long-term outlook remains promising, driven by changing consumption trends. According to the Ministry of Industry and Trade, Vietnam is targeting stable growth with an output of 7 million tons per year, ranking second in Southeast Asia.

As a trusted supplier of encoders for the pulp and paper industry, AMS is committed to supporting manufacturers in maintaining stable machine operation, improving efficiency, optimizing costs, and increasing profitability. We aim to be a long-term partner for paper producers on their journey toward sustainable growth.

>> See more: Leine Linde Encoders - The No.1 Choice for Harsh Industrial Environments

2. Top 10 Encoder Applications in the Pulp and Paper Industry

2.1. Pulp Grinding and Wet Processing

Pulp production operates under harsh conditions—wet, humid, and subject to significant temperature variations. Therefore, machine components must be highly durable and reliable. When precision is required, Leine Linde encoders perform exceptionally well.

• Absolute encoders provide precise position feedback for automated processes.

• Incremental encoders control the opening of pulp distributors by measuring speed and screw rotations.

This ensures smooth conveyor and feeding systems, consistent pulp distribution, and uniform pulp bale quality.

Suitable encoder models: Industrial 600 series, Robust 500 series, Heavy-duty 800 series, ADS Uptime 800 series, Compact 700 series.

2.2. Wet Press Section

During the Fourdrinier process, excess water is removed from the pulp. Ensuring stable motor operation and precise wire speed control is critical. High-resolution, accurate encoder feedback is essential for effective process control. Encoders must withstand vibration, high temperatures, and chemical exposure conditions that demand proven reliability.

Suitable encoder models: Industrial 600 series, Robust 500 series, Heavy-duty 800 series, FSI 800 series, ADS Uptime 800 series, Compact 700 series

2.3. Dryer Section

The dryer section operates in hot and humid conditions, caused by both the paper product and steam-heated dryer cylinders. Roller and shaft speeds must gradually decrease across dryer zones as paper shrinks during drying. Leine Linde encoders provide accurate feedback to ensure precise speed and tension control throughout the drying process.

Suitable encoder models: Magnetic 2000 series, FSI 800 series, Heavy-duty 800 series, ADS Uptime 800 series, Industrial 600 series

2.4. Finishing Section

In the finishing stage, paper passes through calender machines where steel rollers are precisely spaced to maintain consistent paper thickness. Coating processes may also be applied at this stage. The finishing environment involves heavy loads, impacts, vibration, and dust. Accurate speed control of rolls, drums, and reels is essential under harsh conditions.

Leine Linde's industrial and heavy-duty encoders excel here by delivering reliable, precise feedback with minimal maintenance.

Suitable encoder models: Robust 500 series, Heavy-duty 800 series, ADS Uptime 800 series, FSI 800 series, Compact 700 series

2.5. Reeling and Slitting

Once paper is formed, it is wound onto multiple steel cores pressed against a winding shaft. This ensures proper tension control for each reel.

Monitoring absolute position and speed is essential when winding finished rolls or jumbo reels. Additional slitting and rewinding may be required to achieve specific widths.

Suitable encoder models: Robust 500 series, Compact 700 series, Heavy-duty 800 series, Premium 900 series, ADS Uptime 800 series

2.6. Sheet cutting or packaging

The integrated encoder with safety features is particularly useful in operations involving moving or handling heavy paper rolls for sheet cutting or transport to the packaging station for wrapping.

Suitable encoder models: Robust 500 series, Compact 700 series, Heavy-duty 800 series, Premium 900 series, ADS Uptime 800 series

2.7. Maximizing Uptime with Encoder Diagnostics

Encoders with condition monitoring enable predictive maintenance, helping prevent unplanned downtime. They also provide early warnings of potential failure sources that could otherwise disrupt the entire production line.

Key feature: ADS Uptime

2.8. Ensuring Functional Safety with Encoder Relay Outputs

Functional safety can be implemented in compliance with the European Machinery Directive by using encoder safety relays connected directly to emergency stop circuits or selected braking functions.

Suitable encoder models: FSI 900 series

2.9. Simplified System Integration via Communication Interfaces

Leine Linde encoders are available with multiple fieldbus interfaces and communication protocols, making integration into existing process control systems straightforward and efficient.

Suitable encoder models: Industrial 600 series, Premium 900 series, Encoders for use with gateways

2.10. Encoders Certified for Hazardous (EX) Environments

In explosion-risk environments such as areas involving chemicals or sensitive coatings ATEX- or IECEx-certified encoders for Zone 1/21 are required. Both absolute and incremental versions are available.

Suitable encoder models: ATEX/IECEx-approved absolute encoders, ATEX/IECEx-approved incremental encoders

3. Conclusion

AMS supplies a wide range of encoders for the pulp and paper manufacturing industry, backed by reliable sales policies and dedicated technical support. In addition to Leine Linde encoders, AMS also provides measurement solutions from leading brands such as Heidenhain and RSF.

We are always ready to listen, consult, and deliver tailored technical solutions for manufacturers. Let's work together to drive a more efficient and sustainable pulp and paper industry. Contact AMS today!

AMS Company, Ltd.
243/9/10D To Hien Thanh str, Hoa Hung Ward, HCMC, Vietnam
Hot line: 028.3868 3738/3903 - Fax: 028.3868 3797