Cast iron spiral staircase model 1890
More information
Product details and dimensions
- System staircase made of grey cast iron
with two-coat paint finish
Colour: graphite grey metallic
Total Ø 1180 mm
Step height: 187.5 mm
Fits spindle column Ø steel tube 76.1 mm
Handrail: steel tube Ø 26.9 mm, unpainted black steel
The staircase components are delivered to your construction site. The newel post, the complete assembly as well as connections and transition constructions to the building and, if necessary, foundations as well as the painting of the handrail parts are on-site services.
The staircase can be assembled with a right or left-hand spiral. The number of steps is variable. The steps can be raised by 2.5 mm, 5 mm or 10 mm by inserting intermediate rings. Intermediate heights can be achieved by using tread elements with special heights.
Example price €12,700 for a storey height of approx. 281 cm
Scope of delivery:
14 compl. Step sets - single step 187.5 mm
1 complete step set exit - triple step 187.5 mm
6 panelling sleeves for spindle column
1 end cap
2 add. railing rod knobs
2 railing rods at the exit
compl. handrail on steps and exit
without intermediate railing rods (not available)
without intermediate rings
without tubular steel newel post
without mounting
plus shipping costs
Prices for other stair heights on request
currently not available
General product information
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Construction
The staircase components are manufactured in Germany by the foundry of a machine factory using the traditional and technically advanced process of lost sand casting.
The master model of the elements is moulded in highly compacted sand. The iron, melted at 1500°C, is poured into the sand mould. Once the molten iron has hardened,
the sand mould is destroyed and the casting is removed. The sand mould is then lost and must be recreated for each casting. After removal, the casting is cleaned by
sandblasting and carefully reworked by hand. Surface
As a result of the casting process, the workpieces have a characteristic finely pearled surface that is retained even after the subsequent coating. The standard colour used is a grey paint with a metallic effect to match the natural appearance of the material.Other colour lacquering in RAL colours and additional galvanising are available on request.
The material cast iron
Cast iron is an iron-carbon alloy with a high carbon content, which distinguishes this material from steel. The term "cast iron" is derived from casting as a process of
shaping- With spiral staircases, also known as spiral staircases, the staircase to the next floor can be designed to be extremely space-saving. However, the striking, space-defining effect of spiral staircases is usually more important than their practical use.
This staircase model is based on an original design from the turn of the century before last. The refined ornamentation is combined with clear functionality - the old masters knew how to unite ornamentation and structural requirements: The ornamental perforated patterns save weight on the one hand and follow the lines of force in the construction on the other.
Specific product information
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Entry and exit solutions and levelling of height differences
Despite the standardised staircase design, very individual solutions can arise at the start of the staircase due to the structural conditions.* Triple tread: To compensate for height differences between the specified storey height and the possible staircase height (number of steps x step height), a double or triple tread with a different step height can be used at the start, forming a kind of landing. Example: specified storey height: 295 cm, possible number of steps: 15 x 19.00 cm = 285 cm => remaining difference: 10.00 cm. In this case, a double or triple step with a height of 10.00 cm would be provided at the entrance.
* Levelling rings: Smaller height differences can be compensated for with levelling rings (h= 2.5 mm) to underlay the steps.
* Double or triple exit step: A double or triple exit step is available as a standardised exit element, which is used as the top step element. It forms a small landing area (48° or 72°) over which the floor to be reached can be accessed at the same height.
* On-site transition construction: A transition construction made of sheet steel to be provided by the customer connects the triple exit step with the straight or round ceiling end of the stairwell or gallery. Customised landing solutions without using the double or triple exit step are also possible, but these solutions must be worked out completely on site with your locksmith.
Staircase construction
The four basic elements of the staircase together form a complete set of steps. In conjunction with a newel post, the staircase can be assembled to the right or left at almost any height.A set of steps consists of
- step (24°)
- set step
- edge bracket
- railing rod with threaded rod and screw knob
Special elements that can also be ordered:
- Sleeves and cover cap for cladding the spindle column
- 2- or 3-width step as an upper exit platform or access solution for levelling the floor height (48° or 72°)
- . 72°)
- Stainless steel handrail coiled (for steps)
- Stainless steel handrail straight or curved (on exit landing and gallery)
- Filler rod for gallery railing and steps Ø 6 mm
- Intermediate rings for height levelling 2.5 mm
Mounting and care
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Mounting
The stairs are assembled in a similar way to a stable construction kit. Cooperation with a local locksmith / metalworker is required for the mounting of the staircase as well as for the supply and adaptation of on-site components and the design of on-site connection details.The four basic elements of the staircase form a complete set of steps when assembled. In conjunction with the newel post to be supplied by the customer, the staircase is assembled with the direction of travel to the right (clockwise) or left (anti-clockwise).
First, the newel post supplied by your locksmith is placed on the floor. The newel post is a standard steel tube (Ø 88.9 mm) with a welded-on base plate that extends over the entire height of the staircase, plus the railing height (panelling sleeves) if necessary. The tread and riser are slid onto the spindle column from above, then the edge bracket is inserted for reinforcement, the threaded rod of the baluster is pushed through and screwed to the baluster knob from below. Step by step, the staircase grows upwards. The stainless steel handrail is then placed on the balusters and screwed into the threaded holes provided on the balusters. The handrail is supplied in pre-drilled partial segments (approx. 5 risers) with plug-in connections. Alternatively, you can have the handrail supplied by your locksmith according to your requirements. Additional balusters with the same design can be supplied to secure the stairwell or gallery against falling. The bar spacing on steps, stairwell or gallery railings can be shortened using simple round bars (Ø 6 mm) painted in the same colour as the staircase (railing filler bars).
Information on building law
The distance between the balusters is system-dependent and does not comply with building regulations in certain cases where a maximum baluster spacing of 12 cm is required. This regulation can be complied with on stairwells or gallery railings by installing filler rods. The buyer is responsible for compliance/non-compliance with building regulations.
