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Comparison Krause 013392 530 cm vs Krause 010391 530 cm

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Krause 013392 530 cm
Krause 010391 530 cm
Krause 013392 530 cmKrause 010391 530 cm
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Typeladderladder
Specs
Design
double sided
straight
sliding
double sided
straight
sliding
Number of sections33
Number of steps
27 /3х9/
27
Materialaluminium
steel /aluminium steps/
Max. load150 kg150 kg
Max. height530 cm530 cm
Dimensions (folded) (LxW)250x60 cm250х46 cm
Max working height620 cm
The height as a stepladder245 cm
Single section height250 cm250 cm
Weight13.5 kg13 kg
Added to E-Catalogaugust 2014february 2014

Material

The material from which the staircase is made (or at least the main part of its structure).

Aluminium. Aluminium-based alloys combine quite decent strength and corrosion resistance with low weight. The latter is especially important for stairs that are long — almost all of them are made of this material. And in general, it is quite widespread.

Steel. Steel is notable primarily for its high strength, in which it significantly exceeds aluminium; while it costs a little less. On the other hand, the weight of this material is also significantly greater. Therefore, it is mainly used in small ladders, in particular, mini-ladders (see "Type").

Tree. Wood is familiar to many from the simplest "rural" stairs, but it is very rare in modern models — at a rather high cost, this material is less practical than aluminium or steel.

Fiberglass. The term "fiberglass" itself literally means fiberglass, but in this case we are talking about fiberglass — a composite material that combines fiberglass threads with a binder polymer (plastic). Such a material is characterized by high strength with low weight, does not corrode, and does not conduct electricity, which makes it perfect for dielectric models (see below). Its main disadvantage can be called a rather high cost.

Dimensions (folded) (LxW)

Ladder dimensions in fully folded position. The smaller they are, the more convenient the ladder will be in storage and transportation. Usually, only the length and width are indicated in the characteristics, because. the thickness of modern stairs is very small and in most cases it can be neglected; and in some models, only the length may be indicated at all — for the same reasons.

Max working height

The maximum working height can be described as the highest height that can be reached using a given ladder. This parameter is determined as follows: the maximum height of the stairs is taken and the height of the person standing on it is added to it (or rather, the highest height that he can comfortably reach with his hands). Of course, this parameter is rather approximate, because taken into account for some average height; and in general the rules for counting will be different. So, for some manufacturers, to determine the maximum working height, they add 2 m to the height of the ladder, others — 2 m 10 cm, and if we are talking about a ladder (see "Design"), this increase can be even less — about 150 – 160 cm (in such models, the user rarely stands on the topmost crossbar). Nevertheless, this indicator makes it possible to estimate the height that you can reach, with an accuracy of a couple of tens of centimeters, which is most often quite enough.

The height as a stepladder

The maximum height of a ladder when used in ladder mode. This parameter is specified only for models that are not originally ladders (see "Type"), but can be used in a similar format. Usually the height is given by the height of the highest rung in the "ladder" installation.

Weight

The total weight of the ladder. On the one hand, the lighter the model you choose, the more convenient it will be to carry, the less effort will be expended. On the other hand, lighter weight means less material used in the construction of the stairs, and this can adversely affect reliability. Therefore, it is worth choosing an option for this parameter depending on the planned features of the application. If the expected load on the ladder is significantly lower than the maximum, then you can not pay close attention to the weight. But if you have doubts and/or plan to work in difficult conditions with a heavy load, you should choose the more massive one from two models with the same characteristics. It is unlikely that this will seriously affect the cost of forces, but the risk of breakage and a dangerous fall will decrease significantly.
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