Installation box with guide rail

The installation box together with the double guide rail is designed to make the use of a mixer in a circulation system easier. Just a few minutes after the mixing process starts an intense circulation is set into motion because the slurry is unable to flow back to the front side of the propeller. The installation box is mounted at an angle to ensure that the slurry mixer never contacts the walls of deep channels but sits in the box, taking up the full channel width. Turning over or shifting is prevented due to the mixer being installed in the box.

Planungsunterlagen PDF-Download

Additional item:

Stainless steel anchor bolts for installation boxes. The box serves two main purposes:

  1. First as formwork and then a part
  2. supporting the guide rail.

This anchor bolt serves as an additional fastener for the guide rail. Costly formwork or masonry lintels are not required. There are two systems designed to fasten the guide rails.

  1. For end face fastening, the basic wall attachment is adequate.
  2. If the guide rails are to be fastened laterally then two telescopic C profiles with large front plates are available for an adjustment range from 600 to 1200, either in galvanised or stainless steel versions.

The C1–76, C1–102, C/E1–102, E1–102, L-E1, Speed mixer ranges are recommended for the mixing system using an installation box and guide rail. They require a pivoting three point attachment or a bracket for the guide rail.


Please observe the following slurry mixer and channel dimensions to ensure optimum efficiency:

Overall depth 1900 mm = Mixer length 4200 mm
Overall depth 2400 mm = Mixer length 5200 mm
Overall depth 2800 mm = Mixer length 6000 mm
Overall depth 3300 mm = Mixer length 7000 mm.

A pit must be planned in the vicinity of the mixer. It is also possible for the whole of the slurry channel in front of the mixer (slurry feed) to be made deeper in comparison with the other slurry channels. The incline should be constructed approx. 1 m behind the mixer at an angle of max. 32° to the normal channel level. If there are differing channel depths a stub dam (approx. 10 cm high) should be constructed at both ends of the less deep channels. If all channels are of the same depth and are not completely emptied, such a stub dam is not necessary.

Fitting the installation box with guide rail:

Place the box vertically on the base plate and cover (sheathe) both sides. The box therefore provides a housing for the mixer which sits securely in a concrete partition wall. At the same time, the double angle bar is fixed in the box using 2 x M12 x 30 screws. Where shallow channels and short fermenter dumps are present, the minimum passage dimension of 0.64 m must be observed.

Very important:

Where deeper channels are present, the box must be encased in concrete 20 - 40 mm, at an angle. The limit is an insertion angle of 27.5°. Where the box is inserted at an angle of above 27.5° an appropriate base must be used underneath. Where encasing in concrete is required, the box must be stiffened using struts otherwise the compacting concrete might cause the box to bulge.

Installation box with guide rail
Installation box with guide rail
Technical data - Installation boxes – welded

inclusive of 2 mounting screws for the guide rail

Technical data - Guide rails

for mixer bases 540-540, 600-600, 625-625, 700-700. Standard design is the 60-60-6 angle

  • Universal mounting kit consisting of 50-50-5 angle and 60-60-6 angle
  • Design fully welded 80-80-8 angle (to order)

Installation box – two-part

Installation box – two-part
Installation box – two-part

The strength of this design lies in its ease of assembly.

The interior formwork matches the 200 mm standard concrete formwork and can easily be concreted in place.

The outside formwork is easily bolted in front of the interior formwork using machine bolts.

The outer formwork allows for an angle of incidence of up to 30° between guide rail and box and it is therefore an important component of this design.

Technical data - Installation box – two-part

Standard version in galvanised steel

Stainless steel version (to order)

Installation box – that can be doweled in place

Installation box – that can be doweled in place
Installation box – that can be doweled in place

BUSCHMANN offers the following solutions for replacing corroded installation boxes in a circulation system:

  • Special installation boxes that fit into existing openings
  • Special installation boxes that fit in front of existing openings

These boxes are doweled onto the concrete wall without having to use a pneumatic drill. This makes the work flow considerably easier.

Technical data - Installation box – that can be doweled in place

Guide rails – custom designs

Guide rails – custom designs
Guide rails – custom designs

Where guide rails are rusted through, we can supply a custom solution as a replacement.

These guide rails have a transverse stop which makes a fixed point in front of the partition wall possible. Two extended guide brackets prevent the guide rail from slipping sideways as they lock in the opening. Old guide rails can be replaced with this design, significantly reducing the workload. In order to guarantee safe use, the guide rail must be attached to the edge of the pit at the top.

Each rail size can be manufactured. We need that 2 Information:

  • The width of the agitator basket
  • The agitator-wavelength

Fully welded construction.

Technical data - Guide rails – custom designs

Specifications are subject to change without notice.