AGV Drive Wheel RFQ Checklist for OEM Buyers
A practical RFQ structure to reduce back-and-forth, speed quotation, and align AGV drive wheel specs before sampling.
Most AGV wheel RFQs fail for one reason: engineering-critical fields are missing, so quotation iterations replace technical decisions.
This guide gives buyers a quote-ready structure that procurement and engineering can submit together.
What a Quote-Ready RFQ Should Contain
A supplier can return a technically meaningful quote only when these blocks are complete:
- Duty and load profile.
- Mechanical envelope and interface constraints.
- Electrical and control interface definition.
- Validation criteria and acceptance gates.
- Commercial boundaries (volume, timeline, terms).
If one of these is vague, the quote is usually provisional, not executable.
Mandatory RFQ Fields (Do Not Skip)
| Section | Field | Why It Matters | Example Input |
|---|---|---|---|
| Vehicle profile | Gross mass and rated payload | Sets torque, bearing, and safety margin | 1,200 kg gross, 800 kg rated |
| Dynamics | Target speed and acceleration | Drives motor power and thermal sizing | 1.5 m/s max, 0.5 m/s2 accel |
| Route | Max gradient and ramp frequency | Determines grade torque reserve | 3% slope, 20 ramps/hour |
| Floor condition | Surface and contamination | Affects traction and wear assumptions | Epoxy + dust + occasional water |
| Duty cycle | Runtime and stop-start pattern | Defines continuous vs peak loading | 20 h/day, 15 s stop-go cycle |
| Wheel envelope | Max diameter and module height | Prevents packaging mismatch | D ≤ 220 mm, H ≤ 280 mm |
| Mounting | Bolt pattern, pilot, shaft output | Controls chassis fit-up risk | 6x M10, PCD 120 mm |
| Electrical | Voltage and current limits | Filters motor and driver options | 48 VDC, 80 A peak |
| Feedback | Encoder type and interface | Controls motion compatibility | Incremental, A/B/Z, line driver |
| Brake | Fail-safe behavior and release logic | Critical for safety case | Spring-applied, power release |
| Protection | IP target and chemical exposure | Impacts sealing architecture | IP65, alkaline cleaner exposure |
| Compliance | Required standards and documents | Needed for final approval | Endurance report + incoming checklist |
Optional But High-Value Fields
These are not always mandatory, but they reduce redesign risk:
- Center-of-gravity offset and dynamic load transfer estimate.
- Allowed cable routing zone and bend-radius limit.
- Expected wheel replacement interval target.
- Spare strategy (module swap vs component service).
- Commissioning constraints (controller ecosystem, tuning ownership).
Attachments That Speed Technical Quotation
Include these files in your first RFQ email:
- Chassis interface drawing (2D with tolerances).
- Basic system architecture (motor driver, PLC, safety chain).
- Mission profile (distance, cycle, ambient temperature).
- Existing failure history (if replacing current wheel platform).
- Pilot and SOP timeline.
- Target annual volume by quarter.
RFQ Readiness Score (Internal Buyer Check)
Use this before sending to supplier:
- Mechanical completeness:
0-25points. - Electrical completeness:
0-25points. - Duty and validation definition:
0-25points. - Commercial and timeline clarity:
0-25points.
An RFQ below 80/100 usually causes at least one quotation rework cycle.
Commercial Terms to Lock Early
Technical alignment is not enough. Define commercial boundaries at the same time:
- Sample quantity and target shipment week.
- Pilot lot quantity and acceptance ownership.
- Forecast annual volume and call-off logic.
- Warranty start point (shipment, commissioning, or SAT).
- Packaging spec for export handling and line-side delivery.
Copy-and-Send RFQ Skeleton
Subject: RFQ - AGV Drive Wheel Module - [Project Name] - [Payload Class]
1) Platform Summary
- Vehicle type:
- Gross mass / payload:
- Target speed / acceleration:
- Max slope:
- Duty cycle:
2) Mechanical Constraints
- Max wheel diameter:
- Max module height:
- Mounting interface:
- Floor/environment:
3) Electrical and Control
- Voltage/current:
- Encoder and protocol:
- Brake logic:
- Controller ecosystem:
4) Validation Requirements
- Required tests:
- Acceptance thresholds:
- Documentation package:
5) Commercial Scope
- Sample quantity / date:
- Pilot quantity / date:
- Annual volume:
- Warranty expectation:
Attachments
- Interface drawing
- Mission profile
- System architectureFinal Buyer Guidance
A strong RFQ is not longer. It is more decision-ready.
Send your draft RFQ with payload, speed, slope, and interface drawings to [email protected]. Jimmy Su and the engineering team will provide a manual technical review before formal quotation.
