Scaffolding Caster Wheel

Male / Female Type

Product Overview

ALTRAD SPAR’s Scaffolding Caster Wheels are intended to be used for mobile scaffold towers, rolling access platforms, and industrial maintenance scaffolds that require controlled movement and secure positioning. Each caster includes a heavy-duty pressed-steel housing with high-strength polyurethane or solid rubber wheels, precision bearings, and a positive twin-locking system that locks both swivel and roll functions, thereby immobilizing them.

ALTRAD SPAR’s swivels offer both Male (Spigot Type) and Female (Jack-Type) variants that are compatible with each other and can be used with Cuplock and Ringlok standards without any changes. All units are load-tested and conform to Aramco GI 8.001 §5.8, SABIC §9.4, BS EN 1004, and OSHA 1926.452.

Key Features & Advantages

Steel Access Ladders

  • High Load Capacity: 4.5–6.0 kN SWL per wheel.
  • Dual Lock System: Locks both rotation and wheel for total stability.
  • Precision Bearings: Smooth movement under heavy loads.
  • Corrosion Resistant: Zinc-plated or hot-dip galvanized housing.
  • Non-Marking Wheels: Polyurethane or rubber options available.
  • Easy Maintenance: Grease nipple provided for bearing lubrication.
  • Universal Fit: Compatible with Ringlock and Cuplock base frames.
  • Safety Certified: Independently tested per BS EN 1004 & OSHA 1926.

Technical Specifications

  • Material: Pressed Steel Housing (EN 10025 S235)
  • Wheel Type: Solid Rubber / Polyurethane (PU)
  • Wheel Diameter: 200 mm (Standard)
  • Wheel Width: 50 mm
  • Bearing Type: Double Ball Bearing
  • Mount Type: Male (38 mm Spigot) / Female (Jack Sleeve 48.3 mm)
  • Finish: Zinc-Plated or Hot-Dip Galvanized (≥ 40–85 µm)
  • Load Capacity: 4.5–6.0 kN per wheel
  • Locking System: Dual Brake (Swivel & Roll Lock)

Standard Models

Model Code Type Wheel Material Diameter (mm) SWL (kN) Mount Type
SP-CW-200M Male Caster PU 200 4.5 38 mm Spigot
SP-CW-200F Female Caster PU 200 4.5 48.3 mm Sleeve
SP-CW-200R Male Caster Solid Rubber 200 6.0 38 mm Spigot
SP-CW-250M Heavy-Duty PU 250 6.0 38 mm Spigot

Structural Performance

Parameter Unit Result Reference
Safe Working Load (SWL) kN 4.5–6.0 BS EN 1004
Ultimate Load kN ≥ 9.0 ALTRAD SPAR Test CW2024-05
Brake Slip Resistance N ≥ 2000 BS EN 1004 Annex B
Deflection (Under SWL) mm ≤ 5.0 BS EN 12811
Swivel Resistance (Lock Engaged) ° 0 OSHA 1926
Corrosion Resistance h ≥ 240 (Salt Spray) ISO 9227

Compliance & Certification

Standard / Client Clause Requirement
Aramco GI 8.001 § 5.8 Mobile scaffold base and caster safety
SABIC § 9.4 § 7.3 Scaffold mobility and locking system
BS EN 1004 Annex B Mobile tower caster testing
BS EN 12811-1 Clause 4 Load and deflection control
OSHA 1926.452 § (w) Caster wheel locking and stability
ISO 1461 / ISO 9227 – Corrosion coating compliance

Quality Assurance (QA / QC)

Inspection Sequence:

  • Material certificate verification (EN 10219).
  • Dimensional check (± 1 mm).
  • Bearing and brake function test.
  • Coating and salt-spray corrosion test.
  • Load test ≥ 4.5 kN per caster.
  • Marking and documentation per QA SOP 14.2.

QA/QC Verification Summary

Stage Method Acceptance Criteria Frequency
Material Verification MTC Review EN 10219 S235 Each Batch
Dimension Vernier ± 1 mm 100 %
Load Test Hydraulic Compression ≥ 4.5 kN Quarterly
Brake Function Manual Test Full lock at 15° rotation Each Unit
Coating Salt Spray ≥ 240 hrs Each Lot
Marking Visual Batch + Year 100 %

Identification & Traceability

Each caster is engraved or labeled with:
ALTRAD SPAR| TYPE | SIZE | SWL | BATCH No. | YEAR
It includes a QR or barcode linked to ALTRAD SPAR’s ERP traceability system.

Applications

  • Mobile access towers and rolling scaffolds
  • Industrial plant and refinery maintenance
  • Shipyard and offshore maintenance platforms
  • Modular shoring and mobile support systems
  • Suspended platform base frames

Maintenance & Inspection

Item Frequency Method
Visual Inspection Before each use Check housing, wheel, and lock
Lubrication Monthly Apply grease to bearings
Brake Function Test Monthly Engage/disengage check
Coating Verification Every 3 years ≥ 40–85 µm
Replacement As required On visible wear or deformation