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The Rottler H85A is a high-precision CNC vertical honing machine engineered to deliver world-class accuracy, superior surface finish, and unmatched automation for engine blocks, liners, cylinders, and industrial components. Designed for shops that demand repeatable results and production-level throughput, the H85A uses servo-driven stroking, automatic bore profile correction, and advanced Rottler CNC control software to produce consistent honing geometry — even on challenging modern engine materials.
With a large work envelope, heavy-duty construction, and advanced automated features, the H85A is ideal for both automotive performance applications and high-volume diesel or industrial rebuilding. Whether used for blueprinting race engines or restoring large diesel blocks, the H85A delivers exceptional cylindricity, straightness, plateau finishes, and precise sizing.
Built for accuracy, speed, and reliability, the Rottler H85A stands at the top of the market for modern CNC honing systems.
| Specification | Value |
|---|---|
| Model | Rottler H85A CNC Vertical Honing Machine |
| Bore Diameter Capacity | Approx. 2.2" – 8.5" (55 – 216 mm) |
| Stroke Length | Up to approx. 21–24" (varies by build) |
| Spindle Speed | Variable CNC-controlled |
| Stroking System | Servo-driven vertical stroking |
| Automatic Sizing Control | Yes — stops precisely at final bore size |
| Tooling Compatibility | Diamond, vitrified abrasives, plateau tools |
| Control Interface | Rottler touchscreen CNC control |
| Workpiece Types | Engine blocks, liners, cylinders, industrial tubes |
| Machine Construction | Heavy-duty column & base for maximum rigidity |
| Power Requirements | Industrial 3-phase power |
Tell us what you need, and we’ll send you a quick and accurate estimate — no hidden fees, no obligations.
We make equipment decisions easy. Clear answers, accurate recommendations, and support from people who know the industry.
When you reach out, you get answers quickly - not generic replies.
Backed by 50+ years in engine machining and reconditioning.
No surprises, no unclear timelines.
Your machine’s long-term performance is our priority.
Decades before today’s engine shops trusted our equipment, Tony was already deep in the craft — rebuilding motors, machining blocks, and pushing for better precision.
A local newspaper once featured him as a standout young machinist, noting his drive, attention to detail, and obsession with doing things the right way. That same passion would eventually shape our company’s values.
Today, that commitment lives on in every machine we sell, every customer we support, and every shop we help succeed.