Vacuum Roots Pump

Introduction

A variety of vacuum pumps and compressors are used in the woodworking industry. The pumps are also used in woodworking as central vacuum systems; to improve inefficiencies; and to minimize costs associated with hook-ups and special foundations which are no longer needed.

Roots vacuum pumps, or vacuum boosters, are dry vacuum pumps that are used together with backing pumps in a wide range of applications where large pumping speeds are required.

Applications

Wood Drying

The use of vacuum dryers in conventional wood drying chambers can reduce a typical drying time from several weeks to a mere 3 to 4 days.

Holding and Lifting

To ensure safe processing, work pieces are automatically clamped to the processing table by means of suction heads. A stable and constant minimum vacuum must be generated to ensure that work pieces are held securely in place during mechanical processing.

Preservation

Before or after processing, wood must be protected against the destructive effects of environmental influences such as heat, moisture, insects and micro-organisms. The practice of soaking the wood in a preservative solution is widespread, but has the disadvantage that the liquid penetrates only a few millimeters into the wood. Complete protection is possible, however, if the wood is degassed and dried with the aid of a vacuum pump. The preservative agent then penetrates much deeper and optimizes the protective effect.

Paper Manufacturing and Processing

● Pre-Press

Vacuum is required for a variety of applications in the pre-press area, including preparing images and film for scanning or exposure and for copying printing plates. There are also many applications where over-pressure is needed as well, such as for guiding plates or film in automatic systems.

● Press

In classic sheet fed offset presses, vacuum and over-pressure is always needed for paper handling – at the feeder to separate the sheets, to feed the single sheets to the different color-aggregates or to guide the sheets through the machine. All these applications need different amounts of air at different pressures.

● Post-Press

There are a variety of applications in the post-press arena. For example, side-channel blowers for folding and cutting machines; pressure-vacuum pumps and individual vacuum pumps and compressors for collating and book-binding machines; and radial blowers for removing waste paper

Advantages

● Robust and economical

● Dry running

● Modular design

● Process safe and reliable

● Available as single aggregates

● Many accessories

● Frequency control available

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