How to Vet a Conveyor Vendor: A 5-Step Procurement Checklist (From a Cost Controller Who Learned the Hard Way)

Who Needs This Checklist?

If you’re a plant manager or engineer tasked with buying a conveyor system—say, a Dorner 2200 series or a custom integrated line—and you've ever signed a PO only to discover 'setup fees' or 'integration surcharges' weeks later, this list is for you.

I’ve been a procurement manager for a mid-sized material handling company for 6 years. My annual budget for conveyor systems and components? $180,000. I’ve negotiated with over 12 vendors, documented every single order in our cost tracking system, and made enough mistakes to build a solid checklist. Here are the 5 steps I now use for every vendor evaluation. It’s not sexy. It works.

Step 1: Map Your Total Cost of Ownership (TCO), Not Just the Price Tag

This is the step most people skip. They see a quote for $4,200 for a Dorner 2200 modular conveyor and compare it to a competitor’s $3,800 quote. Then they go with the cheaper one. Six months later, they’ve paid $600 in integration fees and $200 for a rush motor replacement because the 2200 series required a specific gear motor mount that wasn’t standard. Suddenly, the 'cheaper' option cost $4,600. The original $4,200 quote included everything.

Here’s what you need to do: Get a written breakdown of the TCO. Ask for a table that includes:

• Base unit price
• Integration or configuration fees (especially for custom layouts)
• Motor and drive costs (e.g., Dorner gear motors)
• Shipping and handling
• Future maintenance kit costs

If a vendor hesitates to give you this, that’s a red flag. Period.

Step 2: Verify the 'Configurator' Output with a Human

I made this mistake once. I used a vendor's online configurator—like the Dorner Dtools or the standard configurator—to build a system. It said my design was good to go. I ordered. It arrived. It didn’t fit the existing frame.

The upside of the configurator was speed. The risk was a $1,200 redo. I kept asking myself: is saving 3 hours of design time worth potentially losing a week on the production line? It wasn’t. Now, after using the configurator to get a bill of materials and a ballpark price, I always send the output to a sales engineer for a check. It’s a step that takes one email and saves you from a headache.

Step 3: Challenge Their 'One-Stop Shop' Claims

I’ve learned to treat 'one-stop shop' with skepticism. A vendor who says they can do everything—conveyors, motors, controls, installation, and integration—often does one thing well and the rest at 80% quality. This is where my rule comes in: specialists over generalists.

A good vendor will tell you where their limits are. For example, when I was looking for a Dorner conveyor system for a heavy mining application, one sales engineer said, 'Our standard modular line isn’t the best for extreme abrasion. You might want to look at a steel belt system from another specialist for that section.' That honesty earned my trust for everything else. If a vendor says they can do it all without explaining any trade-offs, be suspicious.

Step 4: Ask for the 'Hidden Costs' Case Study

Every experienced vendor has a story about hidden costs. Ask them to share one. A good answer sounds like this: 'Our biggest hidden cost issue is usually when a customer doesn’t account for the floor anchoring requirements. That costs $500-$800 to fix after installation.' A bad answer is: 'We never have hidden costs.'

I learned this the hard way. I once went with a vendor who offered a 'free setup' promotion. The free setup was for a standard system, but I needed a custom motor controller. That 'free setup' cost me $450 in reconfiguration fees. I still kick myself for not asking: 'What does setup not include?'

Step 5: Validate the Integrator's Experience with Your Specific Application

Not all Dorner systems are created equal. The Dorner 2200 series is great for light assembly. The Dorner AquaGard is for washdown environments. But if you’re moving heavy tires or large parts, you might need a custom solution. Ask the vendor: 'Show me three installations in the last two years that were similar to my application.'

If they can’t provide those references, you’re taking a risk. The best case is they learn on your dime. The worst case is a $4,000 mistake. In our procurement system, I track every 'underperforming' installation. 30% of our overruns came from using a standard solution in a non-standard application.

Common Mistakes (Don't Do These)

• Relying on the 'Cheapest' Quote. The lowest price often reflects a lack of support or hidden fees.
• Ignoring the Configurator Check. See Step 2. Always verify.
• Believing 'One-Stop Shop' Without Evidence. It’s usually better to pick a specialist for the core system (like Dorner) and a separate integrator for controls.
• Not Documenting the TCO. Get it in writing. A verbal promise is worthless.

That’s it. Five steps. Simple. If you follow this list, you’ll likely save at least 10-15% on your total project cost compared to going with the first quote. Take it from someone who’s been burned.