What information must be provided to the manufacturer when requesting a quote for a double-girder bridge crane?

To obtain an accurate and comparable quotation from a manufacturer for a double-girder bridge crane, you must provide—all at once—four key categories of information: core technical parameters, operating environment conditions, configuration requirements, and commercial terms. The following is the complete checklist:

I. Core Technical Parameters (Mandatory; determine the main equipment body)
Rated Lifting Capacity
Main Hook: __ t; Auxiliary Hook: __ t (Enter "N/A" if no auxiliary hook)
Note: Specify if intended for special applications (e.g., metallurgy, explosion-proof, grab bucket, electromagnetic chuck)
Span (Track Gauge)
Distance between centers of crane rails: __ m (e.g., 16.5m, 22.5m, 28.5m)
Lifting Height
Main Hook: __ m; Auxiliary Hook: __ m (Distance from rail top to the hook's limit position)
Working Class (A-Value)
Complete Machine: A3/A4/A5/A6/A7/A8 (Based on usage frequency and load rate)
Mechanisms: Working class for Hoisting / Long Travel / Cross Travel (Typically consistent with the complete machine)
Travel Distance (Long Travel Length)
Distance traveled longitudinally along the rails: __ m
Speed ​​Requirements (Optional; affect configuration and price)
Main Hook Hoisting: __ m/min; Auxiliary Hook Hoisting: __ m/min
Long Travel: __ m/min; Cross Travel: __ m/min
Is Variable Frequency Drive (VFD) speed control, dual-speed operation, or micro-motion control required?
II. Working Conditions and Environmental Factors (Affect design and materials)
Usage Location
Indoor / Outdoor; Presence of high temperatures, dust, corrosive substances, or flammable/explosive environments?
Plant/Rail Conditions
Rail top elevation: __ m; Rail model (e.g., QU80, P43)
Column spacing, corbel elevation, presence of obstacles?
Power Supply Method: Conductor rail / Cable reel; Voltage: 380V / Other
Climatic Conditions
Ambient Temperature: __℃ to __℃; Are cold-weather protection, rain protection, or sun protection configurations required?
Special Working Conditions
Materials to be lifted: Molten steel / Molten aluminum / Bulk materials / Precision components / Hazardous materials?
Are dual-hook synchronization, anti-sway control, precise positioning, or automated operation required?
III. Configuration and Functionality Requirements (Affect price variations)
Structure and Materials
Main Girder Type: Box girder / Truss Girder; Material: Q235B / Q355B / Other
Wheels / Bearings / Reducers / Motor Brand Requirements (Domestic / Imported / Specified Brand)
Control Method
Ground Remote Control (Wireless / Wired) + Cab Control Console
Required Features: PLC, Touch Screen, Remote Monitoring, AGV Integration
Safety Devices (Standard + Optional)
Standard: Hoisting Limit Switch, Overload Limiter, Buffers, Rail Clamps (Wind-resistant), Brakes
Optional: Anti-decoupling Device, Anti-collision System, Anemometer, Cameras, Audible & Visual Alarms, Safety Monitoring System
Accessories & Special Functions
Grabs, Electromagnetic Chucks, Hydraulic Clamps, Rotating Hooks, Rope Guides
Maintenance Platform, Access Ladder, Lighting, Air-conditioned Cab
IV. Commercial & Service Requirements (Quotation Scope & Delivery)
Quantity: __ Units
Quotation Scope
Inclusion: Design, Manufacturing, Transportation, Installation, Commissioning, Inspection Filing, Training, Warranty
Inclusion: Rails, Conductor Rails, Cables, Foundation Embedded Parts, Spare Parts
Delivery Lead Time: __ Days after Contract Signing
Warranty Period: Complete Machine: __ Years; Core Components: __ Years
Payment Terms: Advance Payment / Progress Payments / Retention (Warranty) Percentage
Acceptance Standards: Per National Standard GB/T 14405 and TSG Special Equipment Regulations
Other: Export Packaging, Commercial Inspection, Sea Freight, On-site Installation Guidance
V. Essential Inquiry Materials (Attached below for efficiency)
Plant Layout Plan, Rail Arrangement Plan, Corbel / Column Dimension Drawings
Photos / Dimensions / Weight of Materials to be Lifted
Description of Special Operating Conditions (e.g., High Temperature, Explosion-proof, Metallurgical)
Inquiry Information Checklist (Can be copied directly and sent to the manufacturer)
Double-Girder Bridge Crane Inquiry Details
Lifting Capacity: Main Hook: __t / Auxiliary Hook: __t
Span: __m
Lifting Height: Main Hook: __m / Auxiliary Hook: __m
Working Class: Complete Machine: __; Mechanism: __
Long Travel Distance: __m
Operating Environment: Indoor / Outdoor; __°C; __ (Dusty / Corrosive / Other) Explosion-proof
Control Method: Remote Control + Cab / Remote Control Only
Speed ​​Requirements: Hoisting __ m/min, Long Travel __ m/min, Cross Travel __ m/min; Variable Frequency □; Dual Speed ​​□
Special Functions: □ Grab Bucket □ Electromagnetic Chuck □ Anti-sway □ Positioning □ Automation
Quotation Includes: □ Transport □ Installation □ Commissioning □ Inspection Filing □ Training □ Warranty: __ Years
Delivery Lead Time: __ Days
Quantity: __ Units