CNC Honing Machines

CNC honing machines are computer-controlled, so they achieve a high level of processing precision. This page for personnel in manufacturing and production departments provides information about their basic mechanisms, how they differ from traditional machines, their advantages, and their disadvantages.

What are CNC honing machines, and how do they work?

CNC honing machines use computers and numerical programs to control honing processing conditions such as stroke, rotation, and honing stone expansion. While conventional hydraulic machines are adjusted in an analog manner, through valve operation, CNC machines use digital input to control operation based on pre-set processing conditions.

Advantages of using CNC honing machines

Improved productivity by reducing man-hours and cycle time

One of the benefits of these machines is that processing conditions are called up through programs, which can reduce the amount of time it takes to perform set-up and to set conditions. These machines make it easy to control stroke and honing stone expansion, and they reduce the amount of reprocessing and adjustment reworking. This reduces the risk of unexpected downtime for mass production lines as a whole and helps boost productivity.

Consistent quality that is not dependent on operator skill

Dimensions, surface roughness conditions, and the like are numerically controlled, so work can be performed under the same conditions by different operators. This offers the benefit of maintaining stable quality even when work is done by inexperienced operators or when changing shifts. It reduces quality inconsistency and helps eliminate the problem of reliance on specific operators.

Disadvantages of using CNC honing machines

High initial costs

CNC machines have precise servo motors, ball screws, control computers, and sensors, so they tend to have higher initial costs than manual machines or older hydraulic machines. When choosing to install a CNC machine, it is important to make a holistic decision that looks at total cost, including yield improvements and operating rates.

Main applications of CNC honing machines

CNC honing machines are widely used in mass production lines in which processing is performed under identical conditions and which require stable quality.

• Motorcycle and automobile engine cylinder components
• Fuel injection device components
• Control valve hydraulic control components
• Steering components, etc.

How to choose a CNC honing machine

If you choose based on price or specifications alone, your choice could impact your operating rates. To minimize downtime, check if there are service engineers near you and if you can locally obtain components.

Also, check if there are "interfaces that support automation", such as gantry loaders or robot transport, with an eye towards potentially expanding production in the future.

This site presents a carefully selected list of honing machines available in India, categorized by the business sector they are best suited for, with the aim of eliminating the problem of reliance on the skills of individual operators. It also presents the support systems of each manufacturer, so please use it in your comparison and deliberations.

G Series（Standard Model）「G50 type」

Processing Range	Diameter: ⌀4 to ⌀100 mm Length: 130 mm
Spindle Stroke Length	Max. 300 mm
Equipment Dimensions	H: 2,250 mm W: 1,300 mm (1 spindle)/1,700 mm (2 spindles) D: 2,400 mm
Automatic Measurement Function	Not indicated on website
Sizing Function	Not indicated on website
Power Specifications	Not indicated on website
Manufacturer Name	NISSIN ProSOL

A standard model for worksites aiming to balance speed and precision

The G series of honing machines are standard models capable of speedy processing and micron-level cutting. They are capable of mass production processing of small and medium diameter components such as pinion gears and connecting rods, and are suited for mass production sites with strict size standards.

SV-3000 Series（Vertical Honing Machine）「SV-3000」

Processing Range	Diameter: ⌀3 to ⌀65 mm Length: Max. 250 mm
Stroke length (mm)	Not indicated on website
Equipment Dimensions	Not indicated on website
Automatic Measurement Function	Not indicated on website
Sizing Function	Not indicated on website
Power Specifications	400/460 V, 50/60 Hz
Manufacturer Name	Sunnen

A vertical honing machine for mass production worksites which require high levels of precision

This vertical model from Sunnen is well-suited for use with hydraulic valves, diesel fuel injection devices, gears, gun barrels, medical components, and the like. They are a good fit for medium to high production sites that need to perform high-precision interior diameter processing.

Gehring「Powertrainhone」

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
Manufacturer Name	Gehring

A great model for worksites aiming to automate their lines

This model is envisioned for the mass production of drive components such as engine and gearbox components. In addition to supporting form honing and in-process measurement, it also has an automatic tool changer that can automatically switch between up to four tools for a single spindle. The powertrain hone is suited for sites that wish to create fully-automated lines.

CNC honing machines - Frequently Asked Questions

Q. Is it possible to avoid circuit board failures due to the voltage fluctuations which are common in India?

CNC honing machines can be used together with servo stabilizers to help prevent circuit board failures. While the risk of circuit board failure cannot be completely eliminated, it is common for most Japanese, European, and North American manufacturers to employ measures to protect CNC circuits from damage.

Q. Is training support available for operators?

There are companies that offer training support. The availability and contents of training support vary by company, so if this is an area of interest to you, please contact the company directly. Some have support systems that provide operation training, startup, and other support in English or Hindi through local sites or agents.

Matching CNC Machines to Production Needs

Some CNC honing machines excel at performing accurate interior diameter processing, while others are horizontal machines which offer fast set-up, or machines which shine when it comes to gear finishing, or multi-spindle machines which are specialized for high volume production. Each manufacturer has its own strong suit. It's important to find the machine that meets your own particular operational needs and the level of performance you require.

For example, the equipment capabilities and manufacturer support offerings that are needed will vary depending on your own company's business, such as precision component supply work, large component processing or heavy industry, component repairs, processing-on-consignment, or the like. This site has carefully selected honing machines that match different business types and issues and can help companies reduce their dependence on individual operators, so please use it to assist in your comparison and deliberation efforts.