# Steam Conditioning in Feed and Pellet Lines

Source: [https://www.stilsan.com/en/solutions/yem-pelet-kondisyonlama-icin-buhar-jeneratoru](https://www.stilsan.com/en/solutions/yem-pelet-kondisyonlama-icin-buhar-jeneratoru)

Steam supply solutions assessed according to line capacity to provide the product with controlled heat and moisture before the pellet press.

## Process requirement

During conditioning, ground feed or biomass is prepared with steam and, when required, other liquids before entering the pellet press. Heat, moisture, and residence time affect product behavior. Excessively wet, insufficient, or condensate-carrying steam may contribute to issues such as agglomeration, slippage, and unstable production.

## How does the solution work?

The steam generator supplies the conditioner manifold through a controlled line. Pressure reduction and control, the separator-steam trap arrangement, insulation, and nozzles are considered to support the delivery of near-dry, stable steam to the conditioner. The feed formulation and the conditioner manufacturer's limits determine the final temperature and moisture targets.

- Pressure, flow rate, and steam quality at the conditioner inlet
- Line insulation, separator, and condensate drainage
- Synchronized control of steam demand with press capacity

## Information required to determine the correct capacity

Information is required on line capacity in kg/h, product type and formulation, initial moisture and temperature, target conditioner outlet conditions, existing manifold pressure, line distance, operating time, and peak load. General ratios may be used for preliminary assessment; generator selection is based on actual production data and the equipment technical datasheet.

## Stilsan's approach and project scope

Stilsan evaluates the required steam load and electrical infrastructure and offers a standard or custom-manufactured generator option. The conditioner, pellet press, and formulation performance are verified together with data from the line manufacturer. Pellet durability, capacity increase, or hygiene outcomes are not guaranteed by the steam generator alone.

## Frequently asked questions

**Why is steam used in pellet conditioning?**

Steam adds heat and moisture to the product, supporting conditioning before pelleting. Target values vary according to the product formulation, conditioner, and press design.

**Is generator capacity selected solely based on the tonnes-per-hour value?**

No. The product, initial and target conditions, steam pressure and quality, line losses, residence time, and simultaneous consumption must be evaluated together.

**What happens if wet steam reaches the conditioner?**

Entrained water droplets may contribute to uneven wetting of the product, agglomeration, and unstable operation. Line slope, insulation, separation, and condensate drainage should be checked.

**Can an electric generator be added to an existing pellet line?**

Suitability can be assessed after reviewing the conditioner's technical data, actual steam demand, existing line, and electrical infrastructure.

## Technical sources

1. ANDRITZ Feed & Biofuel. [Conditioners for Feed Pelleting and Extrusion](https://www.andritz.com/products-en/newsroom-de/feed-biofuel/conditioners)
2. ANDRITZ Feed & Biofuel. [Animal Feed Manufacturing Handbook](https://discover.andritz.com/rs/157-EGK-904/images/Animal%20Feed%20Manufacturing%20Handbook.pdf)

## Related products

- [Steam Machine](https://www.stilsan.com/en/products/buhar-makinesi): STL-001
- [Steam Machine (Custom Size)](https://www.stilsan.com/en/products/buhar-makinesi-ozel-boyut): STL-002

## Related technical guide

[Why and How Is Steam Used in Feed Pellet Conditioning?](https://www.stilsan.com/en/blog/yem-pelet-kondisyonlamada-buhar)