Everything you need to know about balers
Expert article

Everything you need to know about balers

How to choose the right baler for your operation. Channel balers, two-ram balers and tying systems explained.

How to choose the right baler

To find the right baler we always ask new customers:

  • What do you want to bale and how large is it?
  • What capacity do you need?
  • What does one cubic metre of loose material weigh?
  • How will the baler be fed? Is it part of a processing line?
  • What bale size do you need?
  • What does your downstream process look like?

Capacity – a key factor

Capacity is often measured in tonnes per hour. Even though many customers know how many tonnes they need to handle per year, it is important to consider how many hours per week the baler will be in operation.

A small saving on labour quickly pays for a larger investment in a bigger baler that does the same job in fewer hours. Good planning of operating time and storage space is essential for finding the optimal solution.

How does a baler work?

Balers use powerful hydraulic cylinders to compress materials inside a chamber. In channel balers the chamber is wedge-shaped with an open end, so the material is compressed harder and harder the further into the channel it travels. A cardboard baler can, for example, reduce volume by up to 90 %.

Channel balers vs. two-ram balers

Channel balers – the right choice for most users:

  • Ideal for continuous operation and high volumes
  • Require less manual handling during operation
  • More flexible bale finishing when switching materials

Two-ram balers:

  • Fixed bale size
  • Optional number of wires per bale
  • Ability to achieve more controlled compression of complex materials

Tying systems

Horizontal tying on a baler

Horizontal vs. vertical tying

Horizontal tying (recommended):

  • Easy maintenance access from the side
  • Less spillage, no openings underneath the machine
  • Easier to thread wires
  • Can have a continuous knife at the top of the ram

Vertical tying:

  • Requires less space beside the machine
  • Openings underneath the machine that cause spillage

Do you need cross-tying?

Usually: No! With the right baler, a long enough channel and sufficient force, cross-tying is an unnecessary extra cost. Cross-tying can cost up to NOK 1,200 extra per hour.

Safety

Safety system at conveyor belt

Waste balers are dangerous machines. Especially in connection with infeed via conveyor belts, special safety requirements apply in accordance with EN 16252:2012, including requirements for non-contact safety systems.

Common challenges

  • Misaligned and dull knives reduce capacity and cause jams
  • Tying wires that snap can often be traced to debris in the tying unit
  • Loose and uneven bales? Check that the press chamber is filling properly and that the photo cells are not blocked

Environmental benefits

Waste balers help reduce waste volumes and transport emissions. They also enable storage of waste during summer for incineration in winter, when heating demand is higher.

Ready to choose?

Browse our range of baling presses and find what suits your needs.