Rungs: Diameter 25-40mm, Spacing 225-300mm center-to-center

Component Specifications

Definition

Rungs are structural components of industrial access ladders that serve as individual steps for personnel to ascend or descend safely. They are designed to withstand specific load capacities while providing secure footing, typically spaced at uniform intervals according to safety standards. In industrial settings, rungs must maintain integrity under various environmental conditions including moisture, chemicals, and temperature fluctuations.

Working Principle

Rungs function as load-bearing steps that transfer user weight to the ladder's side rails through secure connections. Their design incorporates anti-slip surfaces and ergonomic spacing to facilitate safe climbing while minimizing fatigue. The spacing follows biomechanical principles to allow natural stepping motion without excessive stretching or crouching.

Materials

Typically made from galvanized steel, stainless steel, aluminum alloys, or fiberglass reinforced plastic (FRP). Steel rungs often have zinc plating or powder coating for corrosion resistance. Materials are selected based on environmental conditions, load requirements, and chemical exposure.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Spacing	225-300mm center-to-center
Diameter	25-40mm
Load Capacity	≥1000N concentrated load
Connection Type	Welded, bolted, or riveted to side rails
Anti Slip Features	Knurled, serrated, or coated surfaces

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 14122-4, DIN 18799, OSHA 1910.27, ANSI A14.3

Parent Products

This component is used in the following industrial products

Access Ladder

A structural component providing safe vertical access to elevated machinery platforms for inspection, maintenance, and operation.

View Product Details

Engineering Analysis

Risks & Mitigation

Slip and fall hazards
Structural failure under overload
Corrosion weakening connections
Improper spacing causing tripping

FMEA Triads

Trigger: Corrosion due to environmental exposure
Failure: Reduced structural integrity leading to rung collapse
Mitigation: Use corrosion-resistant materials, apply protective coatings, implement regular inspection schedules

Trigger: Improper installation or loose connections
Failure: Rung detachment during use
Mitigation: Follow manufacturer torque specifications, use locking fasteners, conduct pre-use inspections

Trigger: Wear of anti-slip surfaces
Failure: Reduced friction increasing slip risk
Mitigation: Regular surface condition checks, replacement when wear exceeds specifications

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±2mm for spacing, ±1mm for diameter, load capacity must exceed rated minimum by 25%

Test Method

Static load testing per ISO 14122-4, slip resistance testing per DIN 51130, corrosion testing per ASTM B117

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Rungs

Manufacturer profiles associated with Rungs.

Sourcing Rungs from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

Related Components

Chrome Plating

Hard chrome plating is an electroplating process that deposits a layer of chromium onto metal surfaces to enhance wear resistance, corrosion protection, and reduce friction for hydraulic cylinder piston rods.

Upper Tool (Punch)

Upper Tool (Punch) is the active forming component in metal plate bending machines that applies precise downward force to create bends in sheet metal.

Main Frame

The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.

Shaft Bearing

Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

Frequently Asked Questions

What is the standard spacing between industrial ladder rungs?

Standard rung spacing is typically 225-300mm (9-12 inches) center-to-center, as specified in ISO 14122-4 and OSHA regulations, to ensure ergonomic and safe climbing.

Can ladder rungs be replaced individually?

Yes, most industrial ladder rungs can be replaced individually if damaged, provided the replacement meets original specifications and is properly secured to maintain structural integrity.

What materials are best for corrosive environments?

Stainless steel (316 grade) or fiberglass reinforced plastic (FRP) rungs are recommended for highly corrosive environments as they offer excellent resistance to chemicals and moisture.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Rungs