Rent chute inlet

Rental Rates Including VAT and Deposit

• Day: €10

• Weekend: €15

• Week: €30

• Deposit: €50

Weekend

The weekend rental is from Saturday morning to Monday morning by 9 AM. If the rented item is returned by 9 AM on Monday, the rental period and rate will be adjusted from 2 days to 1.5 days.

General

The chute inlet is only available for rent in combination with a window holder and a support stand.

Instructions

How to assemble a rubble chute?
(Rubble chute assembly banner)

What is a rubble chute?
Before we explain how to assemble a rubble chute, let’s first define what it is. A complete rubble chute consists at least of the following elements:

• Chutes in the shape of a truncated cone made from plastic or galvanized steel with connections via chains, hooks, and eyes.

• A support structure (support stand) for attaching a hand winch and hanging the chute. The support stand should be attached to a window or scaffolding.

• Window mounts that clamp around the parapet and hold the support stand with the chute.

• A hand winch with a support frame, which is used exclusively for assembling and disassembling the chutes (lifting the chutes from the ground).

• Note: Only original Müba construction parts may be used for the rubble chutes!

General setup of the rubble chute
The maximum height of a plastic rubble chute – like ours – can be up to 40 meters. If the chute is made of galvanized steel, the maximum length is 30 meters. When attaching the chute to masonry constructions, the height or length is limited to 25 meters.

• The chute must be lifted vertically and hung vertically in operation. Chutes with an intermediate filler piece should be mounted fully vertically. The construction parts of the rubble chutes are sized for: maximum tilt during assembly and disassembly and a maximum operational tolerance of 10:1 (10 meters vertical, 1 meter horizontal).

The stability approval takes into account the following:

• The weight of the entire construction

• 2 meters of rubble fill to account for blockages

• Wind load according to DIN 1055 part 4

• Horizontal forces from tilt and operational clearance of 10:1 (10 meters vertical, 1 meter horizontal)

Mounting a rubble chute in a window opening
Window mounts consist of two support elements spaced 740 mm apart.

• Support column

• Telescope arm

• Bolt alignment

• Load distribution (inside)

• Load distribution (outside)

• Support surface for support stand

• Connection for the support stand

Important: The distribution of forces to the walls must be demonstrated by the user of the chute in each individual case.

Instructions for masonry constructions:

• The maximum height of the rubble chutes for masonry constructions is 25 meters.

• The extension length of the inner support column (1) and the alignment for the bolts (3) in the telescope arm (2) depend on the thickness of the wall.

• The support forces of the struts on the inside and outside of the masonry (parapet) must be transferred to the rising, at least 36 cm thick walls on both sides of the parapet.

For this, it is necessary to use internal (4) and external (5) transfer elements (e.g., horizontal braces) of sufficient size as load distribution with the required length.

These must be secured against shifting and falling.

Instructions for concrete constructions:

• The maximum height for concrete and sufficiently reinforced wall sections is 30 meters for steel chutes and 40 meters for plastic chutes.

• The assembly of the window mounts, consisting of two support elements, is done as for masonry constructions, using transfer elements for load distribution.

These may be omitted, provided evidence can be given that the concrete wall sections can take the applied forces on their own.

Mounting a chute to scaffolding

The attachment of the support stand is done to crossbars R, which should be symmetrically positioned relative to the scaffolding.

The posts in the connection area (A, B, C, respectively A, B, according to the floor plan) must be anchored to the building where the support stand is attached. If existing scaffolding anchors are used, the anchoring forces from the chute must also be taken into account in addition to those from the scaffolding system.

Mounting the chute to a standard scaffold

The scaffold holders must be attached to both the inner and outer posts. Attaching them only to the inner posts is allowed if the distribution of horizontal forces parallel to the plane of the scaffold is guaranteed through other measures (e.g., horizontal braces).

When mounting the chute to a standard scaffold, it should be attached parallel to post pair II. Scaffold braces R with a pipe diameter of 48.3 mm are required. These should not be inserted and must be attached to the posts using certified B-type scaffold couplings.

Chutes with intermediate reinforcements
If your chute is shorter than 10 meters, it can be suspended without intermediate reinforcements. However, if your chute is longer than 10 meters, intermediate reinforcements are required at a maximum distance of 8 meters.

These reinforcements depend on the construction conditions and can only be specified in individual cases. Proof of stability must also be provided in each case.