Elevator ropes from Brugg Lifting. Tips for rope handling.

This section provides important information and tips regarding the properties of ropes and the handling of ropes. If required, we will provide you with additional information and will of course be available to us to answer any questions.

Don'ts
Avoid placing ropes on hard surfaces.
There should be minimum or no weight load on the ropes

Do's
Elevator Ropes should preferably be transported on a spool
Use suitable transportation to transport the spools
Lifting straps are a safe and optimum way of transporting rolled up rope sections

Don'ts

The ropes should not be exposed to direct sunlight, rain and other weather conditions

 

Do's

The elevator ropes must be stored away from direct sunlight and elements of the weather.
The area where the ropes are stored must be clean and dry
Preferably the ropes must be stored on pallets
In case of short term outdoor storage, the foil covers must be regularly checked for condensation and water penetration

In case of short term outdoor storage, the foil covers must be regularly checked for condensation and water penetration

 

Don'ts

While rewinding/unwinding the ropes try as much as possible to avoid bends in the ropes

Do's

While rewinding keep the rope as much as possible away from the ground
Try and maintain the same level while rewinding the ropes
Ensure that the tension of the rope is maintained while rewinding

Don'ts

Avoid formation of loops while unrolling the elevator ropes

Avoid rolling the rope on dusty and uneven surfaces

Do's

It is advisable to unroll the ropes directly from the spool

You can unroll the ropes by rotating the spool on a clean and even surface

You can also unroll the ropes by attaching the spool to an axis in order to facilitate the rotation of the coil. Thereby, making it easier to unroll the ropes

Don'ts

Avoid pulling the ropes over sharp or pointed edges. This may cause damage and/or torque to the ropes

Do's

Preferably let the ropes pass over a spool or reel

When should the rope be lubricated?

When there is no traces of lubricant on touching the rope

How much of the rope should be lubricated?

0.4 liter rope lubricant/cm wire diameter and 100m rope (based on Brugg lubricant)

Principles of lubrication

The ropes should be lubricated often but sparingly. The lubricant must be evenly distributed over the entire surface of the rope. Relubrication should only be carried out on a clean rope (free from dust, moisture)

Requirement

The lubricant must be miscible with the original mineral lubricant. It should have a good penetration, the friction co-efficient µ≥ 0.09 (-) (material pairing steel/cast) must be achieved so that traction is maintained

Important:

All elevator cables of Brugg Drahtseil AG are lubricated during the production process. However, ropes could be stored for long periods before installation. Therefore, we recommend checking the rope for sufficient lubrication immediately after installation. It is important that the ropes are sufficiently lubrocated. The ropes must never be used in an unlubricated condition.

The lubricant must be present in sufficient quantity however, the lubricant must not drip from the rope while the lift is moving.

We recommend using the special lubricant from Brugg

The correct geometrical shape of the traction sheave grooves is an important influencing factor for the rope life. During the rope laying period, the traction sheave grooves are subject to wear and tear caused by frictional stress (slippage and expansion slippage). As a result of the stress (tensile, bending, transverse and frictional stress) during operation, the rope diameter and the groove shape changes.

The rope diameter of new ropes is usually larger and therefore may not fit into the existing deeper, run-in and narrower traction sheave groove. When laying new ropes a review  of the groove shape is therefore required. If the deviation from the ideal condition is greater, replace the traction sheaves or if possible, retighten them.

Ensure that the rope is not twisted. This can be easily controlled with the help of the i-line.

Permitted rotations depending on installation height

Post installation and during the operation, the ropes must be secured against twisting

None

Testing in operation

Rope end connections with cable locks should be checked during inspection of ropes.

Attention to be paid to:

Damage to the rope, such as broken wires

Deformation of the rope at the point where it emerges from the housing

The state of the cable lock housing, especially if it is determined that the wedge protrudes very far. The tabs of the housing should be checked for possible deformation, cracks or other defects

The secure and tight fit of the wedge

The condition of the bolt including possible existing threads

The presence of the splint in the correct position; the sapwood must be bent over.

A - The dimension X indicates the distance between the clamp and the nearest part of the housing. X should be approximately 75% of the total length of the wedge.

If X is too small, the rope gets deformed and if X is too large the wedge can fall out of the housing thus making the rope relaxed.

1 - According to EN 13411-6

2 - Wire rope clamp with 'U' shaped clamping bracket (EN 13411 - 5)

3 - Soft Wire

X= 0.75L

B - The distance X of the clamp fromt the nearest part of the housing should be approximately 40% of the total length of the wedge. This avoids rope deformation or the wedge falling out of the house if the distance is too large

1 - According to EN 13411 - 7

2 - Wire rope clamp with 'U' shaped clamping bracket (EN 13411 - 5)

X = 0.4L

None

Check the rope tension immediately after installation with a suitable device, eg the RPM BRUGG.

Ensure that all ropes in the rope set are evenly tensioned.

Repeat the rope tension test for 3 months after commissioning the system and later at regular intervals.

Elevator ropes must be checked at regular intervals for wear and tear according to the load by qualified personnel.

The determination of the discard condition and the monitoring of the elevator ropes  in use is carried out in accordance with ISO 4344 / DIN 15020, sheet 2.

The number of load-bearing wires in the outer strands is used for determining the expiry date according to the type and number of wire breaks.

It is recommended that the rope inspections are documented.

Supporting Wires

Visible Wire Breakage

Elevator Ropes

Supporting Wires

Wire Breaks

 

Cross-cut on a long section of 6xd

Cross-cut on a long section of 30xd

 

 

6 x Strain Ø

30 x Strain Ø

Up to 50

4

8

8x19

152

10

19

51 up to 75

6

12

SC8

152

10

19

76 up to 100

8

16

DP9/MCX9

16/19

13/14

26/29

101 up to 120

10

19

HRS/SCX9

16/19

13/14

26/29

121 up to 140

11

22

 

 

 

 

141 up to 160

13

26

 

 

 

 

161 up to 180 

14

29

 

 

 

 

181 up to 200

16

32