Davit Arm – Glass Replacement Unit (GRU) | WLL: 250kg

Davit Arm Glass Replacement Unit (GRU) | GGDGRU250
Integrated Heavy-Duty Facade Material Handling System
The Davit Arm Glass Replacement Unit (GRU) is a high-efficiency architectural maintenance and rigging assembly engineered specifically for handling glazing units and heavy cladding elements during building installation or replacement operations. Combining a lightweight, high-tensile structural aluminum boom layout with a high-torque electric winch setup, this system provides precise, smooth control over material handling at high altitudes.

System Overview & Engineering Design
This consolidated data sheet details the complete mechanical and electrical parameters for the GGDGRU250 system, integrating the structural crane configuration and its companion heavy-duty electric hoisting unit.

Advanced Structural Metallurgy: Built using high-strength Aluminum 6061/T6 for the primary upper boom, post, and monorail assemblies to significantly reduce self-weight, easing handling on rooftop setups while guaranteeing maximum structural stiffness.

Robust Foundation Interfaces: The turning components, fixed mount points, and oversized foundation base are forged from heavy-duty Hot-Dip Galvanized (HDG) Q345-B carbon steel to ensure rigidity against large structural overturning moments and extreme outdoor weathering.

Integrated Turning Kinematics: Equipped with a built-in heavy-duty rotating manual slewing interface (“Turning Kit”) allowing for smooth pivot arcs during tight glass tracking maneuvers over roof edge boundaries.

Technical Specifications
1. Structural & Dimensional Parameters (Davit Arm)

Structural Parameter
Specification / Material Matrix

Model Number
GGDGRU250 (Ref: CCG250-L1.5-H1.5)

Safe Working Load (SWL / WLL)
250 kg

System Reach / Outreach Outreach
1500 mm

Total System Height
1815 mm

Column Pivot Height
1599 mm

Davit Base Footprint Dimensions
$400 times 400text{ mm}$

Column / Post Profile
Aluminum 6061/T6 ($varnothing 200 times 8text{ mm}$ wall thickness)

Boom Configuration
High-Tensile Aluminum 6061/T6

Monorail Profile Dimension
Aluminum 6061/T6 ($116 times 70text{ mm}$)

Fixed Mounting & Turning Hub
Hot-Dip Galvanized (HDG) Steel Q345-B

Base Material Base Composition
Hot-Dip Galvanized (HDG) Steel Q345

2. Electrical & Power Parameters (Integrated Hoist Winch)

Electrical Parameter
Specification / Performance Metric

Power Drive Model Reference
Heavy-duty industrial series (500–1000 kg class)

Physical Dimensions ($L times W times H$)
$60 times 24 times 26text{ cm}$

Operational Supply Voltage
Three-Phase / 380V / 60Hz (3P/380V/60HZ)

Rated Power Output
3500 W

Effective Hoisting Height
0 to 30 meters range

Lifting Line Speed
10 meters per minute (10m/min)

Motor Insulation Rating
Class F

Ingress Protection Level
IP40

Core System Advantages

High Strength-to-Weight Optimization: The $varnothing 200 times 8text{ mm}$ structural aluminum post design minimizes architectural load impact on roofing systems, simplifying manual shifting and alignment between multiple pre-installed base sockets across floor layouts.

Industrial-Grade Hoisting Power: Driven by a premium 3500W, three-phase high-torque electric winch engine. This motor features Class F thermal insulation properties, providing high-cycle lifting speed stability (10m/min) over deep vertical drops up to 30 meters.

Corrosion Protection Matrix: Combining premium anodized structural alloys with hot-dip galvanized steel sub-assemblies creates an effective barrier against water intrusion, rust tracking, and atmospheric oxidation, maximizing product lifecycle longevity during outdoor construction phases.