Boost your shop’s revenue by as much as 400% without new hiring

The Rottler EM100 series CNC machines dramatically increase throughput and precision, leading to higher profits per job without adding people.

Rottler EM100 Series - Machining Centers for Heavy Duty & High Horsepower Diesel Engines

Rottler EM100 Series Benefits

50-85% Faster

Manual work just can’t compete with Rottler equipment. Our machines finish complex jobs flawlessly and in a fraction of the time. That means faster turnaround for your customers and more revenue for your shop.

Fully Automatic

Just set it and forget it. Our fully automatic CNC machines let you set the job, press start, and walk away. While the machine works, your operator is free to run other jobs.

More Precise

Rottler machines aren’t just fast—they’re accurate down to microscopic levels. That gives you better results and fewer errors which means less rework and more satisfied customers. That’s precision that pays off.

Easy to Use

No computer geek stuff here, just a simple touchscreen interface you can master in 30 minutes. And, with the same interface across all our machines, once you know one machine, you know them all.

Worried About Complicated Tech? Don’t Be.

Many worry about CNC machines being too complicated or prone to problems. Not Rottler equipment. We’ve been manufacturing engine building machinery for over 100 years. Our machines are smart, solid, hassle-free, and built to last for generations. Rottler’s touchscreen interface is simple to learn, program, and use. Plus with G Code interpretation and Rottler block software with preset programs for block machining, canned cycles, and an optional automatic tool changer, all you do is set it up and walk away. The machine does the rest!

  • Long travel, deep hole machining
  • Safety for operators, less wear, and minimal floor space requirements – 1/3 the space of traveling table

  • Quick, smooth, and precise movement, eliminate backlash
  • Direct drive means no gear box and no belt, direct motor to ball screw power transfer
  • Little to no wear due to friction, easy serviceability

  • Quick fixture changeover
  • Standard offerings for all common blocks and cylinder heads, universal offerings for a large work mixture, and custom offerings available upon request
  • Locate blocks by referencing the main line; the only way to accurately fixture a block to maintain critical engine geometry

  • Accurate; level and aligned bores, no bar through bores causing bending error
  • Great finish; short distance from spindle

  • Tool library management; touch off tools once and reduce operator setup time
  • Automatic tool changes; no operator handling necessary
  • Canned cycles; quick tool path generation for repeatable and accurate work
  • Program library; press cycle start on a saved program to let the machine run unattended for a long period of time
  • Production page; run multiple cycles automatically without additional intervention

  • Renishaw wireless probe for automatic centering and measuring
  • Find and store multiple feature locations with automatic probing cycles; bores, holes, posts, depths

  • Model Workpieces and create toolpaths all from the machine, special uses such as: engraving, water hole repair, etc.
  • Conversational programming to make milling, drilling, pocketing, tapping easy
  • G Code interpretation; Postprocessors for Fusion 360 and MasterCAM
  • R Path not required for general remanufacturing machining

  • So advanced, it’s simple
  • Easy to learn, program, use
  • Preset programs for engine block machining, canned cycles, and walk-through “programming”
  • Better than writing G Code based off blueprint values
  • Become a master at programming block operations in just a few hours

Trusted by the Best Names in the Business

“There’s really nobody that builds machines like Rottler… We have 8 of the really big machines and probably another dozen of the smaller ones… They’re the very best you can have. ”

Rex Crumpton, Memorial Machine

More Rottler Customer Stories

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Click here to see videos of leading engine shops across the country who are hard core Rottler fans.

Meet the Family

See the full line of the world’s leading, purpose built CNC machinery for remanufacturing and repair of Heavy Duty & High Horsepower Diesel blocks

EM103H
Rottler EM103H CNC engine machining center

On-highway diesel applications such as trucks and buses

EM105H
Rottler EM105H

Large diesel up to V20 in marine, mining, oil & gas, power generation

EM109H
Rottler EM109H

Very large, high horsepower diesel – CAT 3616, EMD 710 20 cylinder, Waukesha ATV, Cummins QSK95, etc.

ROI Calculator

See the Numbers for Yourself

Find out how much more your shop could be earning per hour, per month, and per year—just by letting Rottler machines do the heavy lifting. Enter what you pay your shop employees and what you charge your customers—we’ll show you how the math adds up.

Calculate Your Potential Return on Investment


Your Rottler Heavy Duty / High Horsepower Diesel Applications Expert

Nick Jenkins, Applications Engineer
High Horsepower Diesel & Nat Gas Specialist
Email: Nick@rottlermfg.com | Tel/WhatsApp: +1 206-406-1880