Description
Toshine Aluminum Stairs and Platforms System
The stair and platform system is commanly used to connect factory equipment and personnel walways, providing an elevated platform similar to stairs above the ground. It is frequently employed on production lines, such as machine step platforms, overhead bridge walkways, maintenance platforms, etc. Operators can quickly reach their workstations through industrial step pathways, not only increasing workers’ productivity but also ensuring their personal safety. Constructed using aluminum profiles and accessories, industrial platforms are characterized by safety, practicality, ease of fabrication, easy installation, and convenience for fixture maintenance. Factories can design these platforms into various shapes and functionalities based on their specific production needs.
Stair and Platform System Instruction
A: Platform -Elevated, stable working platform or transition platform used for high-altitude operations above the ground.
B. Stair – used for climbing, connecting the ground and the working platform.
C. Platform Railing – Surrounding the platform, a protective fence designed to ensure the safety of personnel.
D. Stair Railing – Installed on both sides of the stair, a protctive fence designed to ensure the safety of personnel.
E. Framework – Used to support the platform, connecting the platform, ground, and stair
F. Kick Plates – to prevent objects from falling off the platform surface.
Design Instructions for stair Platform Components
Height
The paltform height should comply with ergonomic standards, i.e., the height of the working surface in an upright position should follow the standard of equipmentheight/body height = 6/11. Considering the actual conditions of the production line, the most comfortable operating height is determined to be 900 ±150mm。
Platform Height = Working Surcafe Height-( 6xBody Height/11)
Width
The platform width is based on the scope of production requirements. The minimum width is determined by adding 200mm to the demand range. The maximum width should be based on the effective space of the production line to avoid unnessary waste of space
Length
The platform length is generally related to the length of production requirements. The ends should be appropriately extended to ensure the safety of operators and to reserve space for workstations, tools, and other auxiliary facilities
Stair
The platform stair is the most crucial aspect to consider in the entire platform design. Such as the width, height, and opening positions of the stairs need to meet the requirements of ergonomics and safety in production.
The design of the stair should consider the following factors
➀ The tread pitch K (the horizontal distance between two adjacent treads) and the vertical height h ( the vertical distance between two adjacent treads) should satisfy the following equation: 600 ≤ K + 2h ≤ 660. Where h ≤ 250mm and K ≥ 100mm. Based on practical experience and ergonomic theory, it is recommended that the tread pitch in on-site cascade design be set to K = 230±30mm and the vertical height be set to h = 200±30mm
➁ The slope β should be determined based on factors such as on-site platform height and cascade width. In general, β is between 30° and 38°, with 38° being the angle most in line with the natural gait of the human body. Depending on different situations, it can also be designed to standard angles such as 45°, 60°, or other non-standard angles.
➂ The platform height H should not exceed 3m, in special cases, this height should not exceed 4m. Otherwise, before reaching another platform, an additional step needs to be added. The length of the step should be at least 800mm and greater or equal to the width of the stairs.
➃ The connection position between the stairs and the platform should between adjacent workstations, and it can be determined based on the distribution of workstations on-site.
Railings
To prevent operators from accidentally falling or entering dangerous areas, it is necessary to install guardrails in the platform area. The general platform guardrail installed in the platform area is shown in Figure 2.
The principle of adding guardrails in the platform area is:
➀ When the platform height exceeds 500mm, guardrails should be installed.
➁ If the gap between the operating platform and the machine frame or wall is less than 200 mm and the protective effect of the frame is equivalent to a railing, it is not necessary to install a railing. However, when the gap between the operating platform and the adjacent frame is greater than 300 mm, a kick plate should be installed.
➂ Railings should include at least one middle horizontal beam or some other equivalent protection. The free space between rails and beams, as well as between beams and kick plates, should not exceed 500 mm. In special cases where the railing height is higher, an additional middle horizontal beam may be added.
➃ When using strut instead of beams, the maximum horizontal spacing between each strut should be 180 mm.
➄ When using strut instead of beams, the maximum horizontal spacing between each column should be180 mm.
➅ The guardrail height is generally set at 1100 mm.
➆ The specific placement of additional rails should take into account the actual conditions on the site
If the platform steps are too high, too narrow, or have other special requirements, step rails should be added at the steps to ensure production safety. The general step railing is shown in Figure 3.
The design requirements for step railings are:
➀ When the ascending height of the step is more than 500 mm, and there is a lateral spacing greater than 200 mm on the outside of the inclined beam, additional guardrails should be attached to its side. The vertical height of the handrail should be at least 900 mm.
➁ To ensure a secure grip, the handrail should have a circular cross-section with a diameter between 25 and 50 mm or an equivalent cross-section that is easy to grip by hand.
➂ The railing should include at least one horizontal beam or an equivalent device. The clear spacing between handrails and beams, as well as between beams and inclined beams, should not exceed 500 mm
Kick Plates
To prevent objects from falling off the platform surface and creating hazards, the minimum height of the kick plate should be 100 mm
Instruction and Selection of Angle of Inclination
The stair and platform system is composed of specialized profiles and connectors. Due to its modular characteristics, it can be seamlessly integrated with profiles and accessories from industrial assembly systems, meeting various functionalities and angles as needed.
*When α = 30°
A smaller angle makes the ascent easier. Although the travel distance is longer compared to stairs with a steeper incline, users do not have to exert as much effort in lifting their legs. This helps alleviate some pressure. This angle is preferred when there is sufficient space, and the stairs are frequently used or employed for transporting heavy objects.
When α = 38°
Taking into account the length and height of the composite steps, along with the calculation of energy expenditure, researchers have found that 38° is the most ergonomically ideal slope. This angle, determined by the lifting motion of the legs and the forward lean of the upper body, aligns most closely with the natural human gait, making it the most comfortable climbing angle.
When α = 45°
This angle is commonly found in staircases within industrial facilities. Not only does it appear aesthetically pleasing, but 45° stairs also offer numerous advantages in terms of space requirements, achievable height, and usability. Additionally, it is the angle with the highest number of standard mold connectors in our company.
When α = 60°
At the same height, climbing at this angle requires more effort, but the distance is shorter, allowing for a quick ascent. This angle is often used in situations where ground space is limited and usage is infrequent, such as maintenance ladders.
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