
Gehring is a global manufacturer of equipment focused on bore honing, which uses honing stones to precisely finish the interior surfaces of cylindrical holes (bores), but its equipment covers a broad range of applications, including exterior surface finishing for large components. Its strengths lie in its in-process measurement, which confirms dimensions during processing, all in real time, and in its automation technologies for mass production. We've organized information about the company and its products to help you decide if it's right for your production lines.
Gehring doesn't just supply honing machines, but also their tools, polishing materials, measurement devices, and automatic transport systems. One of the strengths of its systems is that they are designed to integrate machining, measurement, and transport to achieve a high level of reproducibility. They produce the same level of quality through numerous rounds of processing in mass production lines, without relying on the experience or sensibilities of operators.
Gehring's machines combine form honing technologies for intentionally creating non-cylindrical shapes, mechanisms for independently controlling multiple honing stones, mechanisms for controlling feed while keeping an eye on processing loads, and contactless measurement systems that use air pressure.
They are configured to encompass all processes, including automatic stopping functions for preventing over-cutting during the shaping stage and functions for feeding workpieces to downstream processes.
Gehring's honing machines have embedded in-process measurement systems for checking dimensions in real time, while processing is being performed. This makes it possible to perform dimension management without needing to add an inspection process after honing is performed. They also use automatic transport and tool-switching systems to reduce the amount of setting time needed before processing can begin and to reduce reliance on the skills of individual operators.
This reduces quality inconsistency and helps shorten the amount of processing time per workpiece.
Different models are suited to different sizes and applications. The lifehone series has servo motors that can control position and speed with a high level of precision. These machines are well-suited for use in high-precision small- and medium-diameter boring by component manufacturers. The powertrainhone series has multiple spindles which it uses to simultaneously process multiple holes. These machines are well-suited for the mass production lines of major suppliers that supply large amounts of components to major completed vehicle manufacturers.
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 |
|---|---|---|---|
| Powertrainhone | Specialized for mass production boring | Diameter: Not indicated on website Length: Not indicated on website |
Mass production of engines |
| Lifehone | Small-diameter precision honing | Diameter: ⌀0.6 to 90 mm Length: Up to 600 mm |
Precision components |

| Processing Range | Diameter: Not indicated on website Length: Not indicated on website |
|---|---|
| Stroke length (mm) | Not indicated on website |
| Equipment Dimensions | Not indicated on website |
| Automatic Measurement Function | Yes |
| Sizing Function | Yes |
| Power Specifications | Not indicated on website |
These models are envisioned for the mass production of drive components such as engine and gearbox components. In addition to supporting form honing, they also have embedded in-process measurement and in-house automation systems. The automatic tool changer can automatically switch between up to four tools for a single spindle. These machines are also designed to be easy to maintain, so they're a great fit for sites seeking to set up fully automated lines.

| Processing Range | Diameter: ⌀0.6 to 90 mm Length: Up to 600 mm |
|---|---|
| Stroke length (mm) | L200: Up to 200 mm L630: Up to 600 mm |
| Equipment Dimensions | Not indicated on website |
| Automatic Measurement Function | Yes |
| Sizing Function | Yes |
| Power Specifications | Not indicated on website |
The L200 and L630 are flagship Gehring models for use in small- and medium-diameter precision bore processing. They have functions for precisely controlling the honing stone stroke, pneumatic contactless interior diameter measurement, and integrated functions for measuring both before and after processing, so they make it easy to maintain consistent quality. They are well-suited for the interior diameter processing of the planetary gears used in automatic transmissions and various types of housings, and they also support high-mix production.
The company's website does not present any usage case examples.
Gehring's technical support includes both troubleshooting and production support. It also speedily supplies genuine spare parts to reduce down time. Its inspection & maintenance services include preventative maintenance, machine inspections, and status reports. Not only can it deal with sudden stoppages when they occur, but it also helps prevent them from occurring in the first place.
Gehring's training and Academy services provide practical training regarding equipment operation, maintenance, and process technologies. Its support doesn't end when its machines are installed, but instead includes the training of the people who will use them. This reduces the amount of uncertainty customers feel when first using machines in worksites. It also reduces the amount of inconsistency in operation quality due to differences in mastery between operators.
| Company Name | Gehring Technologies GmbH + Co. KG |
|---|---|
| Head Office Location | Gehringstrasse 28, D-73760 Ostfildern, Germany |
| Contact in India | Gehring Technologies India Private Limited, Sy. No. 2/1, Andharahalli Village, Vishwaneedum Post, Thigalarapalya Main Road, Bengaluru, Karnataka, India |
| Website | https://gehring-group.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.