
Walter Krupp isn't just a honing machine manufacturer, but also a sales agent that handles a wide range of Comec machines. The Comec LEV300 and LEV300-L are bore honing machines made for finishing the interior diameters of cylinder blocks.
This page explains the Comec honing machines available from Walter Krupp.
Walter Krupp is an industrial machinery supplier whose history stretches back over five decades. It carries a wide range of equipment used in engine refurbishing, among them honing machines from Comec.
Walter Krupp doesn't just sell the machines, but also provides consultation, both before and after machine installation. Its website has pages on consultation, project support, spare part ordering, and maintenance, so it has great promise as a provider of ongoing support.
The bore honing machines available from Walter Krupp are suited for use in worksites that want to maintain consistent quality in their reassembly of modern engines. They're particularly well suited for engine overhauling by factories that work with internal combustion engines, racing engine production, and setting up internal maintenance and repair shops for commercial vehicles.
One of the things that makes these machines so well-suited for these applications is that processing conditions can be manually entered via a touch screen. They support both manual and automated workflows and enable highly reproducible processing.
Device capabilities and manufacturer support requirements vary from business to business, differing for precision components, large components and heavy industry, and component repair and processing.
We have carefully selected the honing machines that are best suited to companies based on the features and challenges of their varied businesses, freeing them from needing to rely on specific operators. Please use the information on this site in your comparisons and deliberations.
▼Click a product's name to see more detailed information.
| Product Name | Features | Processing Range | Main Uses |
|---|---|---|---|
| LEV300 | Standard length blocks | Diameter: ⌀2.5 to 500 mm Length: Up to 300 mm |
Standard blocks |
| LEV300-L | Long blocks | Diameter: ⌀2.5 to 500 mm Length: Up to 300 mm |
Long blocks |
The maximum processing range of 300 mm indicated in the table is the maximum spindle travel distance. This is not synonymous with the maximum processing length, and is provided for reference purposes only.

| Processing Range | Diameter: ⌀2.5 to 500 mm Length: Up to 300 mm |
|---|---|
| Stroke length (mm) | 300 mm |
| Equipment Dimensions | H: 2,160 mm W: 1,020 mm D: 1,560 mm |
| Automatic Measurement Function | Not indicated on website |
| Sizing Function | Not indicated on website |
| Power Specifications | Not indicated on website |
The LEV300 is a dedicated cylinder block machine with a touch screen and an electronic hand wheel. It supports both manual and automated workflows and makes it easy to achieve a high level of work condition reproducibility.
This model is suited for use by internal combustion engine factories and repair factories that primarily work with typical automobiles and standard blocks for small and medium-sized engines.

| Processing Range | Diameter: ⌀2.5 to 500 mm Length: Up to 300 mm |
|---|---|
| Stroke length (mm) | 300 mm |
| Equipment Dimensions | H: 2,160 mm W: 1,020 mm D: 2,060 mm |
| Automatic Measurement Function | Not indicated on website |
| Sizing Function | Not indicated on website |
| Power Specifications | Not indicated on website |
The LEV300-L has the same basic functions as the standard LEV300 machine, but it is longer, with a total machine length of 500 mm. This longer structure makes it possible to mount and process long cylinder blocks.
This model is well suited for worksites which expect orders for long workpieces that couldn't be handled with the standard model and tuning shops who have their eye on entering the large engine refurbishing business.
The company's website does not present any usage case examples.
Walter Krupp's site has a separate contact page. One of its features is that its consultants are your primary points of contact with the company. When you're considering installing foreign-made machines, knowing exactly who to contact provides tremendous peace of mind.
The Walter Krupp website has a spare parts order page; an inspection, maintenance, and calibration page; an incident report page; and a learning and professional development page. On the website, you can see the process to follow in the event of a machine shutdown after installation.
Comec also provides IoT-based remote support for its devices with touch panels, so you can also make use of manufacturer-side support.
| Company Name | Walter Krupp GmbH |
|---|---|
| Head Office Location | Göddertzgarten 38, D-53340 Meckenheim, Germany |
| Contact in India | Not indicated on website |
| Website | https://walter-krupp.com/ |
BS-VI standards and growing EV demand are driving unprecedented needs for precision machining.
While the "overseas components + local assembly" model keeps initial costs low, design mismatches and unclear accountability create long-term risks.
Integrated management from design to assembly ensures consistent machining accuracy regardless of operator, minimizing material loss, accelerating ROI, and building the foundation for global trust.

This honing machine synchronizes stroke and stone expansion in 0.1 μm increments, enabling precision honing of holes as small as 3 mm in diameter and 80 mm deep, even in hard materials.
Automatic electronic control and made-to-order jigs reproduce the techniques of veteran operators.
These honing machines eliminate deviations in the manufacturing of precision components such as control valves while also reducing personnel costs.
| Bore Diameter |
Ø3~Ø100 |
|---|---|
| Workpiece Length |
130mm |
| Spindle Stroke Length |
Max. 300mm |
Gears / Connecting rods / Hydraulic valves, etc.

Machine height can be reduced through pit installation, reducing the footprint and using less volumetric space. It also makes it easy to mount and unmounts heavy objects such as engine blocks, reducing the operation workload.
They can even cut the large machining allowances unique to heavy industry in short amounts of time.
| Bore Diameter |
~Ø350 |
|---|---|
| Workpiece Length |
3,800mm |
| Spindle Stroke Length |
Not specified on official website |
Long pipes and tubes / Piston rods / Heavy workpieces / Exterior diameter processing, etc.

A graph showing the status of the hole being honed is displayed on-screen, in real time. This makes it easy to visually understand where the workpiece is and how it is warped, accelerating repair decisions.
These systems can store up to 100 processing settings at any time. They can also be backed up via USB, so even for small-lot, high-mix jobs, you can instantly reproduce the same processing as in previous jobs. They also shorten set-up times.
| Bore Diameter |
~Ø203 |
|---|---|
| Workpiece Length |
279mm |
| Spindle Stroke Length |
~225mm |
Engine blocks, etc.