EOT Crane BOM & Makes Comparison Checklist
Quick Answer
Before comparing EOT crane prices, ask each vendor to disclose the make, model, rating, datasheet, and substitution risk for key items: hoist, motors, gearbox, brakes, VFD, control panel, limit switches, overload protection, DSL/busbar, wire rope, radio remote, bearings, wheels, hooks, and spares.
A low EOT crane quote can look attractive until you discover that the vendor used lower-grade components, vague makes, weak spares support, or substituted critical parts after PO. A BOM and makes comparison prevents this by forcing every vendor to disclose what they are actually supplying.
What This Helps You Do Immediately
Catch vague quotes
Identify where a vendor has written "standard", "reputed make", "as per availability" or left the component make blank.
Compare equivalent scope
Separate real price difference from hidden differences in hoist, brake, motor, controls, DSL, safety and documentation.
Control substitutions
Make substitutions a written approval item before PO instead of discovering lower-grade supply at dispatch or installation.
Cheap Quote Trap Example
Weak BOM wording
- Hoist: standard make
- Motor: suitable rating
- Brake: included
- Panel: standard components
- DSL: buyer scope
- Wire rope: standard steel rope
Buyer-safe BOM wording
- Hoist make, model, duty and datasheet attached
- Motor make, kW, insulation, duty and enclosure stated
- Brake make, type, torque rating and lining details stated
- Panel component makes and VFD model stated
- DSL rating, length, feed point and collector details stated
- Wire rope construction, grade, core, MBF and certificate required
Risk Tier: Which Components Need Maximum Clarity?
| Risk tier | Components | Minimum evidence to ask for |
|---|---|---|
| Safety critical | Hoist, brakes, wire rope, hook block, overload protection, limit switches | Make, model, rating, certificate/datasheet, test or acceptance basis. |
| Downtime critical | Motors, gearbox, VFD, control panel, DSL/busbar, collectors | Make, rating, enclosure, spares availability, service support and substitution approval. |
| Commercial risk | Installation hardware, cabling, festoon, painting, documentation, spares | Clear inclusion/exclusion, quantity, warranty and handover documents. |
What to Compare in the Crane BOM
| Component | Required Disclosure | Why It Matters | Red Flag |
|---|---|---|---|
| Hoist make/model | Make, model, capacity, duty basis | Hoist is the main lifting system. | Only "standard hoist" mentioned |
| Motors | Make, kW, duty, insulation class | Motor duty affects heat, life, and reliability. | No duty rating |
| Gearbox | Make, ratio, service factor | Gearbox quality affects downtime and service cost. | Make/model missing |
| Brakes | Make, type, torque rating | Brake selection is a safety issue. | No torque value |
| VFD / controls | Drive make, model, rating, protections | Controls affect smooth motion and maintenance. | Panel components not declared |
| DSL / busbar | Rating, material, collectors, feed arrangement | Weak power supply causes trips and downtime. | No voltage drop basis |
| Wire rope | Construction, grade, core, certificate | Diameter alone is not enough. | No certificate or MBF |
| Safety devices | Limit switches, overload, emergency stop, siren/light | Safety scope must be explicit before PO. | Safety devices bundled vaguely |
Questions to Ask Vendors
- Please submit make and model for each critical component.
- Please attach datasheets for hoist, brakes, motors, gearbox, DSL, wire rope, remote, and safety devices.
- Please confirm substitutions require written buyer approval.
- Please identify imported parts, local spares, and expected lead times.
- Please mark any excluded components or buyer-scope items clearly.
How to Use This Checklist
Use one column per vendor. If one vendor gives clear make/model data and another gives vague wording, do not treat their prices as equal. Normalize the BOM first, then compare commercial terms.
Copy-Ready Vendor Clarification Message
Send this to any supplier whose quotation does not clearly identify component makes, models, ratings and exclusions.
Next Step After BOM Comparison
Download the Worksheet
The HTML checklist above is the page to bookmark. Offline worksheet versions are available in both styled Excel and raw CSV formats: