How to Compare Conveyor Supplier Quotes

Ranking conveyor quotations by the number on page one is how plants buy the wrong scope. Two documents can both say "belt and install" and still differ on cover grade, splice method, cranage, warranty hours, delivery point and whether scrapers are included. This page is a working comparison method for South African engineers, procurement and project managers.

It expands the short comparison section in choosing a conveyor supplier in South Africa, which remains the place to define scope and assemble an RFQ pack. Here the focus is what to do once quotations are on the desk. There is no magic number of quotes that guarantees a good buy — comparability matters more than count.

Start with a common brief

You cannot compare what was not asked the same way. If one supplier received photos and a shutdown date and another received "need idlers," the spread is information, not market. Send one brief, or explicitly restate the same inclusion list when you invite a further house.

Use how to request a conveyor quote so categories, suburb and notes are consistent. Then build a simple sheet: each supplier as a column, each topic below as a row, and a cell for "included / excluded / unclear." Unclear is a follow-up, not a win for the cheapest line.

Equipment specifications

Read the technical offer before the price. Belt quotes should name construction, cover grade, width, and splice method. Drive quotes should name motor power and enclosure, gearbox size and ratio, service factor, coupling and whether a backstop or brake is included. Pulley quotes should distinguish lagging-only from a new shell and shaft. Idler quotes should state diameter, bearing series and frame type, not only a quantity.

If the RFQ asked for a capacity upgrade, check that structure and take-up were reviewed, not only a faster belt. Undersized upgrades fail early and make the low quote expensive. Category pages for drives, gearboxes and motors list the questions that should already be answered in a complete offer.

Where a supplier proposes an alternative, ask them to mark it as a variant with reasons — different carcass, ceramic lagging, or a chute redesign — rather than silently substituting. Alternatives can be better value; they must still be visible.

Included and excluded items

The inclusion list is where quotes most often look cheaper than they are. Typical splits: belt without splice; splice without take-up adjustment; pulley without bearings; structure without walkway grating; mechanical without electrics; install without cranage or scaffolding; new belt without scrapers or skirts.

Ask each supplier to list exclusions in the same order. If one price includes disposal of the old belt and another leaves it to the plant, add that labour to the comparison. If one includes belt cleaners and skirt rubber and the other assumes existing hardware is serviceable, you are not buying the same outcome.

Owner-furnished items must be named. A quote that assumes you supply the motor, VSD or civil plinths is not a full system price. The cost factors guide is a useful checklist of lines that often sit outside a "conveyor" heading.

Installation and site services

Supply-only versus installed is the first commercial fork. For installed work, confirm who isolates the conveyor, who provides cranage, scaffolding, permits, waste bins and after-hours access. A quote that assumes a plant crane you do not have is not comparable to one that prices a mobile crane.

Underground, elevated galleries and operating plants change method statements. Ask whether the labour hours assume continuous access or cage/permit delays. Commissioning — running, tracking, cleaner setting, training — should be stated as included or extra. A belt left untracked is not a finished install.

If two quotations use different shutdown durations, the shorter one is not automatically better. It may omit splice cure time, lagging bond time or electrical tests. Align the programme before you reward speed.

Warranty

Warranty is only as useful as its scope. Ask what is covered: materials, workmanship, splice, lagging bond, gearbox, motor. Ask what voids it: mistracking left uncorrected, tramp, overload, or missing scrapers. Ask whether labour to replace a failed item is included or only the part.

Hours or months of cover mean little if the duty assumed in the quote does not match the plant. A warranty written for a dry grain belt will not map onto a wet sticky coal transfer. Get the assumed duty in writing next to the warranty paragraph.

For wear items — cleaners, skirts, impact idlers — expect a different conversation from the belt carcass. Consumables may be excluded. That is acceptable if it is explicit and if you have a spares path.

Delivery, Incoterms and logistics

Price without a delivery point is incomplete. Ex-works, delivered to a Gauteng store, delivered to a mine gate, and delivered underground are different obligations. Remote sites add escort, road condition and offload equipment. Coastal and border movements add paperwork some quotes ignore.

Confirm who offloads, whether the belt is supplied in rolls that fit your store or splice bay, and whether packaging suits outdoor holding. A cheap roll that cannot be handled on site without a hired crane has not saved money.

Validity dates matter when rubber, steel and currency move. Compare remaining validity, not only the original issue date. A lapsed quote is not a price.

Maintenance and spares

Ask what wear parts the supplier expects you to hold, and whether those items are quoted as an option. A drive package without a coupling or lubricant spec is harder to maintain. A belt without a stated carcass makes the next emergency order a guess.

If the quote is for a critical conveyor, ask how replacements are obtained after handover — stock, indent, or workshop repair. After-sales is not the same as a spare-parts list, but the two should not contradict each other. Planning context is in the conveyor maintenance guide.

After-sales support

Support is who you call when the splice fails on a Sunday or the gearbox runs hot after start-up. Ask whether the quoting branch does the work, or whether a third party is assumed. Ask about site presence in your region — not as a marketing claim, but as a practical question: who travels, and from where.

Training, as-built drawings and belt stamp records are part of support. A turnkey installer who leaves no drawings makes the next RFQ worse. A component supplier who provides a packing list and stamp photo makes the next like-for-like buy easier.

Do not treat "we are local" as scored unless the quote names the workshop or crew base. Location on your request is what lets them speak to travel honestly.

Lead time

Lead time should be split: materials, fabrication, transport, and site slot. A short promise on an indent belt that has not been confirmed with the mill is not a programme. Ask what is from stock and what is made to order. Ask what happens if a pulley shell is rejected on inspection.

Shutdown-driven work needs the crew date, not only the ex-works date. A belt that arrives after the mill restart is a failed quote even if the unit price looked attractive. Align lead time with your isolation window and with any other contractors sharing the same crane.

For project work, ask for a simple sequence: design freeze, procurement, fabrication, delivery, install, commission. Dates can be indicative; the sequence shows whether engineering is in the price.

Compliance and site rules

Underground fire-resistant belting, food-area materials, hot-work permits, working at height, and lockout procedures all constrain method and sometimes product. A quote that ignores your site rules will either be rejected at the gate or will grow via variation.

Ask suppliers to confirm they have allowed for induction, medicals, PPE and any required documentation. If your site needs specific coating systems or electrical specifications, those belong in the RFQ and should appear in the offer. Silence is not compliance.

Instrumentation and pull-key layouts should match the plant's isolation standard. See conveyor instrumentation and controls if the quote is light on safety devices.

Total cost of ownership

Total cost of ownership is capital plus energy, wear, labour, downtime and the cost of a poor splice or chute. You will not get a precise life model from a free quotation, and invented payback figures help nobody. You can still ask qualitative questions: expected wear points, inspection access, cleaner adjustment, and whether the design repeats a known failure.

A heavier cover, ceramic lagging, or a chute liner upgrade can be the lower-cost path on abrasive duty even when the first invoice is higher. A light idler set that seizes and cuts the belt is not a saving. Use operating experience from your own plant — hours, previous failures, clean-up labour — as the TCO evidence, not a brochure claim.

For belt-only buys, read conveyor belt pricing so you are not ranking rand per metre across different constructions. For system-scale thinking, use how much does a conveyor cost.

A comparison sheet you can reuse

• Scope: supply-only, install, design-build
• Technical: belt, drive, pulleys, idlers, structure, cleaners, controls
• Exclusions and owner-furnished items
• Site method: cranage, permits, access, commissioning
• Warranty: what, how long, what voids it, labour included or not
• Delivery point, validity, lead time split by activity
• Spares, drawings, training, who attends breakdowns
• Compliance against your site rules
• Price last, after the rows above are filled

If a cell is empty, ask. A complete mid-priced offer often beats an incomplete cheap one. When you need another round of quotations against a tightened scope, submit an updated request rather than informal WhatsApp changes that only one supplier sees.

FAQ

Should I always pick the lowest quote?

Only if the specification, inclusions, programme and warranty match the others. Lowest price frequently means missing splice labour, lighter covers or owner-supplied cranage. Rank complete offers, then price.

What if one supplier offers a different technical solution?

Treat it as a variant. Ask them to price your original scope as well if you still need a like-for-like column, and to explain why their alternative reduces wear, spillage or power. Do not mix variant and compliant prices in one ranking without labelling them.

How do I compare a component quote with a turnkey quote?

You usually cannot, until you add the missing lines — engineering, steel, electrics, chutes, install — to the component total, or strip the turnkey quote to the same supply-only list. Align scope first. Turnkey projects and component categories are different buys.

The quotes arrived with different validity dates. What then?

Compare remaining validity and ask for extensions in writing if you need time to finish technical clarification. Do not award on a number that has expired or that was calculated on an older brief.