Knowledge

In mobile scaffolding operations, the scaffolding caster is the most critical and vulnerable component for load-bearing. To standardize safety, the European Union established the EN 1004 regulation, which sets rigorous requirements for structural design, load capacity, and safety performance. HAION Caster is a leading brand that fully complies with these stringent standards.
1. Total Lock System
One of the core requirements of the EN 1004 regulation is the linkage of the scaffolding caster braking system.
    ◆Dual-Lock Requirement: Once the brake is engaged, it must simultaneously lock both
       the wheel rotation and the swivel rotation.
    ◆Wheel Rotation:
       The brake mechanism clamps the wheel to prevent it from rolling forward or backward,
       keeping the scaffold stationary.
    ◆Swivel Rotation:
       Simultaneously locks the swivel head, preventing the caster from pivoting and
       ensuring the scaffold does not change direction due to external forces.
       Engineering Practice: Many low-quality casters only lock the wheel itself.
       This causes the scaffold structure to wobble or pivot slightly when workers shift their weight
       at height. HAION's EN 1004-compliant scaffolding casters ensure a total lock, eliminating instability
       and vibration.
2. Load Capacity and Safety Factor
EN 1004 provides clear testing standards for both "static load" and "dynamic impact" of scaffolding casters.
    1.Static Strength Test: The scaffolding caster must withstand 3 times the Safe Working Load (SWL)
     without any permanent deformation or structural failure.
    2.Drop and Impact Test: Mobile scaffolds often encounter debris or uneven surfaces.
    HAION offers two standard material options for its scaffolding casters to handle these conditions:
        ◆PU on Nylon Core:
        High-density polyurethane effectively absorbs road impact. Its special formula prevents
        "flat spots" under long-term heavy loads, ensuring smooth movement.
        The nylon core provides excellent radial support, enhancing structural stability.
        ◆Nylon Wheel: Features high strength and extremely low rolling resistance.
        Ideal for high-load applications on relatively flat surfaces, its rigid, single-piece structure
        distributes vertical pressure evenly and offers superior wear resistance. 
3. Anti-Detachment and Structural Connection Safety
Regulations require that the connection between the scaffolding caster and the vertical standard must include an "anti-detachment mechanism" to prevent the caster from falling out during lifting or uneven ground movement.
   1.Anti-Detachment Locking Design: When installed, the scaffolding caster must be equipped
    with physical locking devices. This ensures that the caster cannot detach from the
    main structure even if the scaffold is lifted, unless intentionally unlocked.
   2.Adjustable Screw Jack Limits: For adjustable scaffolding casters, the threaded stem must feature
   clear safety limit markings or physical stops to prevent workers from over-extending the screw,
   which could lead to excessive torque and structural failure. 
4. Testing Standards and Identification
HAION's EN 1004-compliant scaffolding casters are marked on the wheel or housing, allowing site safety officers to easily conduct inspections:
    1.HAION Caster brand name or logo.
    2.Maximum load capacity.
    3.Production batch or date.
    4.EN 1004 certification stamp. 
5. Why Prioritize EN 1004 Compliance?
With increasingly strict occupational safety regulations, major construction projects and high-tech manufacturing plants (such as TSMC) mandate certification for all scaffolding equipment, including scaffolding casters, upon site entry.
    1.Mitigate Legal Risk: If a failure leads to a fall, using equipment that does not meet
     international standards exposes contractors to severe legal liabilities and compensation claims.
    2.Boost Construction Efficiency: High-quality HAION EN 1004 scaffolding casters offer lower
     rolling resistance, significantly reducing the physical effort required for workers to move
     the tower.
    3.Lower Long-term Costs: While compliant scaffolding casters may have a higher initial price,
     they typically last 3–5 times longer than generic casters, resulting in better value over time.