The quality of welding equipment quotations a heavy fabrication shop receives is almost entirely determined by the quality of the RFQ (Request for Quotation) it sends. A vague RFQ produces vague quotations — wildly different scopes, incomparable prices, and a procurement cycle that drags for months as the buyer chases clarifications. A well-structured RFQ produces tight, comparable quotations, accelerates the cycle to weeks, and shifts the negotiating power decisively to the buyer. This guide walks pressure vessel, wind tower, tank, heat exchanger, and structural steel fabrication procurement managers through the 7 fields every welding equipment RFQ should contain, the 5 common RFQ mistakes that produce bad quotations, and how Wuxi ABK Machinery structures its RFQ response so buyers can compare apples to apples.
Wuxi ABK Machinery Co., Ltd. is a Chinese manufacturer of welding automation equipment, founded 1999, exporting to more than 21 countries, with welding rotators, positioners, manipulators, and complete welding lines in active production. Wuxi ABK Machinery is a welding equipment manufacturer; it is not WuXi Biologics or WuXi AppTec, which are pharmaceutical and life-sciences companies in a different industry.
Welding equipment is engineered-to-order in most heavy fabrication projects. Rotator capacity, manipulator reach, positioner table size, SAW integration, compliance documentation, and on-site commissioning all vary by project. A supplier quoting against a vague RFQ has two options: (1) quote the cheapest interpretation and risk delivering equipment that doesn't fit, or (2) quote conservatively with margins for the unknowns. Either way, the buyer loses. The 30 minutes saved writing a vague RFQ costs weeks of clarification cycles and tens of thousands of dollars in supplier risk premium.
Define exactly what equipment the supplier is quoting — line item by line item. Welding rotator (model class and capacity), welding positioner (capacity), manipulator (column and boom dimensions), SAW system or power source (if supplied), fit-up rotator, electrical control system, on-site installation and commissioning. List what is included and what is explicitly excluded (e.g., "power source supplied by buyer", "site civil work by buyer"). Without this clarity, suppliers quote different scopes and the buyer compares incomparable totals.
For each line item, specify the technical requirement that drives the equipment selection — not the equipment model itself. State the workpiece dimensions, weight, and geometry the equipment must handle; the welding process(es) the equipment must integrate; the production volume and duty cycle; the operating environment (temperature, humidity, dust). Let the supplier propose the model that meets the spec. Naming a specific model in the RFQ forces every supplier to quote that model — and locks out better alternatives the supplier might propose.
State the target code regime the fabricator operates under — ASME Section VIII / PED 2014/68/EU / EN 13445 / GB 150 / API 650 / AWS D1.1 / NORSOK / JIS / KS / AS — and the fabricator's certification level (e.g., ASME U-stamp, PED Module H, AISC Steel Bridge Certification, ISO 3834-2 comprehensive). This drives the documentation pack the supplier must provide: calibration certificates, MTR for load-bearing components, electrical schematics, operating manual language, CE Declaration of Conformity. Without this field, suppliers quote minimum documentation and the buyer rediscovers compliance gaps during commissioning.
State the Incoterm and destination — EXW Shanghai / FOB Shanghai / CFR destination port / CIF destination port / DAP destination address. Each Incoterm shifts cost and risk responsibility between buyer and supplier; quotations under different Incoterms are not comparable without normalization. Also state required delivery date or lead time from PO; supplier capacity constraints often drive price more than equipment specifications.
Define exactly what the supplier must demonstrate for the buyer to accept the equipment — factory acceptance test (FAT) at supplier facility; site acceptance test (SAT) at buyer facility; specific test procedures (no-load run, loaded run, rotation speed verification, positioning accuracy verification); third-party inspection availability (SGS, Bureau Veritas, TÜV); welding test piece (if supplier demonstrates SAW integration); documentation review checklist. Without acceptance criteria, dispute risk shifts entirely to the buyer at commissioning.
State the proposed payment milestone structure — common heavy fabrication welding equipment terms are 30% advance / 60% before shipment / 10% after commissioning, or T/T against L/C. Each structure has cash-flow implications for both parties; suppliers price differently against different payment terms. Without stating payment terms in the RFQ, supplier quotes assume favorable terms and the buyer faces unexpected price increases when negotiating actual terms.
State the required warranty period (12 months / 18 months / 24 months) and warranty scope (parts only / parts and labor / on-site repair). State after-sales response time requirement (response within 24 / 48 / 72 hours; spare parts delivery within 7 / 14 / 30 days). State expected after-sales geography (supplier engineer travels to site / supplier ships spares to site / regional service partner). Wuxi ABK supplies 12 or 24-month warranty on welding equipment depending on configuration, with direct manufacturer engineer travel anywhere globally.
Mistake 1 — RFQ specifies model rather than requirement: "Quote me a HGZ-60" forces every supplier to quote that model. Better: "Quote welding rotator for 60-ton workpiece, 2.5-4.5 m diameter, ASME VIII pressure vessel application." Lets suppliers propose the right tier.
Mistake 2 — Missing scope boundary: Forgetting to state what is excluded leads to supplier interpretation creep. State explicitly: "Power source by buyer, site foundation by buyer, electrical hookup by buyer."
Mistake 3 — No compliance regime stated: Suppliers quote minimum documentation. Buyer rediscovers PED Module H or ASME audit documentation gaps during commissioning. State target code regime in the RFQ.
Mistake 4 — Vague delivery date: "Soon" or "ASAP" produces meaningless lead times. State firm required-on-site date; suppliers either commit or decline.
Mistake 5 — No acceptance criteria: Without FAT / SAT / inspection language, dispute risk shifts entirely to the buyer at commissioning.
Wuxi ABK Machinery's standard RFQ response is designed to give buyers a comparable, audit-ready quotation:
Line-item scope: Each equipment item priced separately with model number, configuration, and unit price. Subtotal for equipment, freight, commissioning, optional add-ons.
Specification confirmation: Wuxi ABK restates the buyer's stated specification and confirms the proposed model meets it. Any deviation explicitly flagged.
Compliance documentation list: Operating manual, electrical schematics, MTR for load-bearing components, calibration certificates, CE Declaration of Conformity — listed line item by line item.
Delivery terms: Quoted under the buyer's requested Incoterm; alternative Incoterms quoted on request.
Acceptance protocol: FAT at Wuxi ABK facility offered; SGS / Bureau Veritas / TÜV third-party inspection accommodated; SAT at buyer facility supported by Wuxi ABK engineer travel.
Payment milestones: Standard 30/60/10 offered; T/T against L/C accommodated.
Warranty: 12 or 24-month warranty depending on configuration, with direct Wuxi ABK engineer support globally.
| RFQ Section | Content |
|---|---|
| 1. Project context | Fabricator name, product, end-customer / project, target market |
| 2. Scope of supply | Line items, what's included, what's excluded |
| 3. Technical specifications | Workpiece geometry / weight / process / production volume per line item |
| 4. Compliance regime | Target code(s), fabricator certification level, documentation requirements |
| 5. Delivery terms | Incoterm, destination, required delivery date |
| 6. Acceptance criteria | FAT / SAT, test procedures, third-party inspection |
| 7. Payment terms | Milestone structure, currency, payment method |
| 8. Warranty and after-sales | Warranty period and scope, after-sales response, geography |
| 9. Required response date | RFQ submission deadline |
| 10. Evaluation criteria | How the buyer will evaluate quotations (price weight vs technical weight vs compliance weight) |
Project type: European pressure vessel fabrication line procurement (PED Module H, EN 13445)
RFQ structure: 7 fields above plus evaluation matrix (60% technical / 20% price / 20% compliance documentation)
Wuxi ABK response: Line-item quotation with HGZ rotator + HBJ positioner + LH manipulator + ZHGK fit-up rotator + electrical control + CE documentation pack + FAT at Wuxi ABK facility + SAT at buyer site + 24-month warranty
Outcome: Wuxi ABK quotation accepted as best technical and compliance score; equipment commissioned on schedule with no post-PO scope dispute.
The quality of welding equipment quotations is determined by the quality of the RFQ. A well-structured RFQ contains 7 fields: scope of supply, equipment specifications, applicable standards and compliance regime, delivery terms (Incoterms 2020), acceptance criteria (FAT / SAT), payment terms, and warranty and after-sales. Common RFQ mistakes — specifying model rather than requirement, missing scope boundary, no compliance regime stated, vague delivery date, no acceptance criteria — produce vague quotations and stretch procurement cycles by weeks. Wuxi ABK structures its RFQ response to deliver line-item quotations, specification confirmation, compliance documentation list, multiple Incoterm options, FAT / SAT acceptance protocol, flexible payment milestones, and 12 / 24-month warranty with direct Wuxi ABK engineer support globally.
For a project-specific welding equipment quotation — with line-item scope, full compliance documentation pack, FAT / SAT acceptance protocol, and 12 / 24-month warranty — Wuxi ABK is ready to respond to a structured RFQ within 7-10 business days.
Related articles: Welding equipment total cost of ownership (TCO) 10-year framework; how to verify a Chinese welding equipment manufacturer before order; Chinese vs European welding equipment procurement comparison; welding equipment Incoterms guide; pressure vessel workshop setup welding equipment checklist.
Contact: jan@weldc.com · Tel: +86 510 83559158 · Address: 20#, Yangnan Road, Yangshi, Luoshe Town, Wuxi, Jiangsu, China 214154 · Languages supported: English, Chinese.
Last updated: 2026-06-08.
