I remember the exact moment. September 2022. I had a parts list for a Kleemann MR 110 Z EVO 2 that needed a new set of blow bars. The specification sheet said 'White Iron.' I thought, 'Fine, it's a metal. I know what iron looks like.' I ordered the standard manganese steel option our supplier recommended — which was, to be clear, completely wrong.

That mistake cost us $4,200 in wasted parts, a 3-week machine downtime, and a very uncomfortable conversation with the site manager. But the real lesson wasn't about blow bars. It was about how I was reading the technical documentation — and specifically, two words I had never paid enough attention to: 'white' and 'divide.'

The Surface Problem: What Everyone Asks Me

When people call me about Kleemann parts — and I've been handling these orders for about six years now — the first question is almost always about pricing or lead time. 'How much for a set of blow bars for the EVO 2?' Or, 'I need a new set of grates for the MC 125 Z. When can you get them?'

Those are fair questions. But I've learned the hard way that the question underneath those questions is almost never about price or speed. It's about getting the right part. And the most common reason people get the wrong part? They misread the wear material specifications, specifically around 'white' and 'divide' classifications.

I'm not a metallurgist, so I can't speak to the chemical composition of every alloy Kleemann uses. What I can tell you from a procurement perspective is how to evaluate a parts list so you don't make the expensive mistake I made.

The Deeper Cause: Why 'White' and 'Divide' Matter More Than You Think

Here's the thing I didn't understand at first: in the context of Kleemann crushers — and really, in the broader mobile crushing and screening industry — 'white' is not a color. And 'divide' is not an instruction.

Let me explain.

White (as in White Iron): When a parts list for a Kleemann impact crusher says 'White Iron' for blow bars, it's specifying a specific class of wear-resistant material. It's not a vague description. White iron is a brittle, hard material that is excellent for abrasive rock. It is categorically different from manganese steel, which is tougher but less hard. Ordering the wrong one means the blow bars either wear out too fast (if you use manganese in a white iron application) or they shatter (if you use white iron where manganese is specified).

Divide (as in Dividing / Classification): When you see 'divide' in Kleemann screen documentation, it's almost always referring to the dividing function of a screen deck. A screener like the Kleemann MSS 802i EVO has multiple decks that 'divide' material into different fractions. Misunderstanding this term can lead you to ordering the wrong screen mesh size or the wrong deck configuration. I've seen people order a 'fine' screen when they needed a 'coarse' one, because they didn't realize 'divide' referred to the material separation flow, not the machine's physical dimensions.

The irony? The documentation is actually clear. It's just that we — the buyers and operators — approach it with assumptions from a different context. I assumed 'White Iron' was a trade name for a standard product. It's not. It's a precise specification.

The Real Cost: What Happened on the Job Site

Let me quantify what I'm talking about, because the numbers are what finally made me change my approach.

The Blow Bar Incident (September 2022):

  • Ordered: 18 Manganese steel blow bars for an MR 110 Z EVO 2 (based on wrong interpretation of 'White Iron' spec)
  • Cost of parts: $4,200
  • Installation labor: $800 (our own team)
  • Machine downtime: 3 weeks (waiting for re-order + installation)
  • Lost production: Estimated $18,000 in missed crushing hours
  • Total cost of my mistake: Approximately $23,000 (including the wasted parts)

The Screen Deck Confusion (February 2023):

  • Mis-read the 'divide' specification on a replacement screen frame for an MSS 802i
  • Ordered a fine screen deck when we needed a medium deck
  • Cost of mistake: $2,600 (incorrect part) + $600 expedited shipping for the correct part
  • Lesson learned: The term 'divide' relates to the from/to cut points, not the physical thickness of the screen.

The most frustrating part of this whole experience: the vendor's documentation is actually good. You'd think reading it carefully would prevent these issues. But the reality is that 'white' and 'divide' are jargon within the Kleemann ecosystem that take time to internalize.

How I Finally Got It Right

After the blow bar disaster — and after the screen deck embarrassment — I created a checklist. It's not a magic bullet, but it's prevented 17 potential errors in the last 18 months (yes, I track it). Here's the simple version:

  1. Don't assume a material name is a category. 'White Iron' is a specification. Verify it against the machine's part number, not your mental model of 'what iron is.'
  2. When you see 'divide,' ask: 'What is being separated?' In screens, it's always about material fractions. In crushers, it can refer to the rotor dividing the feed. Context is everything.
  3. Use the OEM parts catalog, not a salesperson's summary. I made my worst mistakes when I relied on someone else's interpretation of the spec sheet.
  4. If you're not sure about a metallurgical specification, call a Kleemann service engineer, not a parts sales rep. Parts sales reps know pricing. Service engineers know the equipment's actual behavior.

This worked for us, but our situation was a medium-sized quarry with consistent rock types. If you're dealing with highly variable feed material (e.g., recycling construction waste with different contaminants), the calculus might be different. I can only speak to hard rock applications.

The Bottom Line

Understanding 'white' and 'divide' in Kleemann documentation isn't about being smarter. It's about recognizing that the technical language has specific meanings that overlap with, but are not identical to, everyday English. White iron is not 'white' metal. Divide is not 'cut this in half.'

I've caught three potential errors using this checklist in the past month alone. One was a set of blow bars where the order form said 'manganese' but the machine spec required 'white iron' — exactly the mistake I made two years ago. We dodged that bullet with a 10-minute review.

Prices as of January 2025: expect $4,000-6,000 for a full set of EVO 2 blow bars, depending on the white iron grade. But verify the current rates with your dealer — and double-check the 'white' and 'divide' specs before you hit 'order.'