Prewa - Prewa 20/30

Applications & Use Cases

• Packaging of granular products such as coffee beans, rice, pulses, and snacks.
• Suitable for creating various bag styles including pillow, gusseted, and block-bottom bags.
• Often used in food processing, confectionery, and pet food industries for automated bagging.
• Ideal for operations requiring consistent product dosing and high-speed packaging.

Typical Specifications

Typical throughput

For this class of equipment, speeds commonly range from 10 to 30 bags per minute, depending on product, bag size, and film material.

Bag size range

Units of this type typically accommodate bag widths from 60mm to 400mm, with lengths varying significantly.

Power supply

Commonly requires a 3-phase electrical supply (e.g., 400V, 50Hz) and a compressed air connection.

Material construction

Equipment for food applications, like this unit, typically features stainless steel frames and contact parts for hygiene and durability.

Dosing system

Often integrated with multi-head weighers or linear weighers for precise product dosing.

Film types

Capable of running various heat-sealable film materials, including laminates, paper-based films, and polyethylene.

Frequently Asked Questions

• What is a Form-Fill-Seal (FFS) machine?

  An FFS machine forms a bag from a roll of film, fills it with product, and then seals it, all in one continuous automated process. Vertical FFS (VFFS) machines are common for granular and free-flowing products.

• What is a linear weigher?

• What maintenance is typically required for a VFFS machine?

• Can this machine handle different bag sizes?

• What is an automatic hole punch device for coffee?