Li Weiyuan, a professional Chinese steel structure manufacturer, produces steel ladders. These ladders are primarily constructed from steel through welding and bolting processes. They are capable of vertical or inclined climbing. These ladders are widely used, providing safe and convenient vertical access or access for aerial work. We welcome you to purchase them.
Li Weiyuan's steel ladders typically have two main columns, which serve as the load-bearing framework of the entire ladder. These columns are typically constructed from angle steel, channel steel, or square tubes to ensure the overall structural stability and load-bearing capacity of the ladder.
The spacing between our rungs meets safety regulations, ensuring comfortable and safe climbing. Some of our ladders also feature anti-slip treatments, such as knurling, welded anti-slip strips, or coatings, to increase friction and prevent slips.
For taller ladders, we also include resting platforms, allowing climbers to rest and relieve fatigue while also enhancing the ladder's overall stability.
Our products are characterized by exceptional structural strength and load-bearing capacity. Steel's inherent strength allows it to withstand heavy loads, ensuring safety during use. By using high-quality steel and applying appropriate surface treatment, steel ladders offer exceptional durability and corrosion resistance, effectively resisting environmental corrosion and extending their service life.
Our steel ladders can be flexibly customized to meet specific project requirements. Dimensions such as width, height, step spacing, and handrail configuration can all be adjusted to meet specific project requirements. Furthermore, their relatively mature manufacturing process makes them easy to install and adaptable to various site conditions.
When it comes to safety, in addition to meeting basic structural strength requirements, considerations must also be given to anti-slip measures, the height and strength of guardrails, the design of rest platforms, and the safety of ladder entrances and exits to ensure maximum safety for climbers. Therefore, due to their durability, safety, reliability, and adaptability to diverse situations, have become indispensable auxiliary equipment in both industrial and residential construction.
The specifications of our steel ladders generally take into account safety, practicality, and compliance with relevant regulatory requirements. Liweiyuan Steel Structure is a leading manufacturer of various steel structure products and metal products in China. We can provide clients with customized metal product solutions, providing them with high-quality, low-cost steel structure products and metal products. We also offer materials and steel structure designs that meet national and regional standards, including those in the United States and Europe.
Ladder Beams
Material Specifications: Commonly used materials are hot-rolled steel sections, such as ∠50×5" angle steel (5 mm thick, 50 mm side length), ∠60×40×3" rectangular tubes (60 mm x 40 mm cross-section, 3 mm wall thickness), and Φ30×3" round tubes (30 mm diameter, 3 mm wall thickness). The specific material used depends on the height and weight of the ladder. For ladders over 6 meters, it is recommended to use at least ∠63×6" angle steel, or a pipe of similar strength.
Spacing:The clear distance between the inside of ladder beams is generally between 300 mm and 500 mm, with 400 mm being the most common. This allows for the width of an adult's body when climbing and ensures a secure grip.
Rungs
Material Specifications: Round steel with a diameter of 20 to 25 mm (22 mm is common) or 3 mm thick flat steel (30 to 40 mm wide) is typically used. Round steel steps must be smooth and free of burrs, while flat steel steps may be provided with anti-slip ridges.
Spacing: The center-to-center distance between steps is 200 to 300 mm, with a standard spacing of 250 mm. The deviation between any two steps should not exceed ±5 mm to ensure a consistent climbing rhythm and avoid the risk of missing steps.
Length: The length of the steps should be 50 to 100 mm longer than the clear inner distance of the ladder beam, meaning that both ends of the steps should extend 25 to 50 mm beyond the ladder beam. Any excess should be hooked or welded with a limit stop to prevent the steps from falling.
Height and Safety
Rung Height: The height of a single rung should not exceed 6 meters. For steps exceeding this height, an intermediate resting platform must be installed. The platform width must not be less than the spacing between the step beams and must not be less than 600 mm. The platform guardrail must be at least 1050 mm high, and the distance between guardrail posts must not exceed 1000 mm.
Top guardrail: If the top of the steps is used as a working platform, a guardrail at least 1200 mm high must be installed. If the top is open, a 180 mm high kickboard must also be installed.
Guardrail Installation: For steps exceeding 3 meters in height, guardrails must be installed 2.5 meters above the ground. The guardrail diameter should be between 700 mm and 800 mm. Horizontal rings should be made of 16 mm round steel, with a distance between rings of 300 mm to 450 mm. Vertical reinforcement bars must be made of 12 mm round steel, with at least four bars uniformly spaced. The safety cage must be installed continuously to the top of the ladder or resting platform. Connectors and Fixings
Welding Requirements: Ladder beams must be connected to steps, and to platforms or structural members, using full-depth welding. The weld height must be no less than 0.7 times the minimum thickness of the connected component, and must be free of slag inclusions and porosity. Critical joints must also undergo flaw detection.
Embedded Parts: Ladder fixings must be connected using expansion bolts (M16 or larger) or embedded steel plates. The embedded steel plate must be at least 10 mm thick, the anchor rod diameter must be at least 12 mm, and the embedded depth must be at least 150 mm.
Rust Prevention: All steel components must be treated with two coats of anti-rust primer and two coats of topcoat. For outdoor use, hot-dip galvanizing is recommended, with a zinc layer thickness of at least 85 μm.
Ladder Width: The clear width (the distance between the inner and outer sides of the ladder beams) is generally 400mm. This can be increased to 600mm for two-person climbing, but requires a separate design. ·
Anti-slip measures: The rungs can be knurled, drilled, or welded with anti-slip strips (Ø6mm round steel, with spacing of 10mm-15mm). This is especially necessary in humid environments.
Bottom protection: The bottom of the ladder should be no more than 300mm above the ground or a reference surface. If the ground is prone to water accumulation, a concrete foundation or elevated base should be installed. The foundation dimensions should be no less than 500mm x 500mm x 300mm (length x width x height).
1.What if a product quality issue occurs?
If you report a quality issue, we promise to respond within 24 hours and provide a solution within 48 hours. If the problem is our fault, we will address it based on your needs, either providing free rework, expedited reshipment (shipping covered by us), or compensation as agreed in the contract.
2.How do you ensure consistent product quality? Do you have a comprehensive quality inspection process?
Our company is ISO9001-2016 certified and implements a three-level quality control system: Before raw materials arrive, steel composition and strength are tested. During the production process, quality inspectors conduct comprehensive inspections at every step, and records are kept. All test data is fully archived for your easy access.
3.Do the steel structure products meet the entry standards of the target market?
Our Liweiyuan steel structure products are CE-certified (according to EN1090 standard), ensuring compliance with EU safety, environmental protection, and energy-saving requirements. We also provide complete test reports.
4.What is the delivery time?
Delivery time depends on the product size and order quantity. Generally, delivery is within 30 days of payment. For large orders, we can also ship in batches.
5.Do you provide installation services?
We will provide you with detailed construction drawings and instructions to help you complete the product setup and installation step by step.
