INTERNAL GRINDER

Q: Q2. What parts are suitable for internal grinding?

Internal grinding is commonly used for bushings, sleeves, bearings, gears, molds, nozzles, hydraulic parts, automotive components, motorcycle parts, and other precision parts with internal holes or bores.

Q: Q3. Can an internal grinder process blind holes or through holes?

Yes. Internal grinders can be used for both through-hole and blind-hole grinding, depending on the workpiece design, bore depth, wheel size, and machine configuration. Buyers should provide drawings so the correct grinding method can be evaluated.

Q: Q4. How do I choose an internal grinder for small bore grinding?

For small bore grinding, buyers should consider the minimum bore diameter, grinding depth, wheel spindle size, required tolerance, and surface finish. A compact high-speed CNC internal grinder is usually more suitable for small precision parts.

Q: Q5. Can one internal grinder process ID, OD, and end face grinding?

Some internal grinder configurations can support inner diameter, outer diameter, and end face grinding in one setup. This helps reduce re-clamping error and improve machining consistency for precision components.

Q: Q6. What causes taper, chatter marks, or poor surface finish in internal grinding?

Common causes include improper wheel selection, insufficient spindle rigidity, unstable workholding, incorrect grinding parameters, poor coolant flow, or excessive grinding depth. Choosing the right machine configuration and process setup is important for stable internal grinding quality.

Q: Q7. When should I choose a CNC internal grinder?

A CNC internal grinder is recommended when the part requires tight bore tolerance, repeatable accuracy, complex grinding cycles, or multiple grinding operations. It is suitable for high-precision parts used in automotive, aerospace, mold, medical, and precision machinery industries.

Q: Q8. What is the difference between internal grinding and cylindrical grinding?

Internal grinding focuses on the inner diameter or bore of a workpiece, while cylindrical grinding focuses on the outer diameter. If the part requires precision hole accuracy, bore roundness, or internal surface finish, an internal grinder is more suitable.

Internal Grinding Machine is a kind of grinder that mainly processes the inner diameter and is widely used in many industrial fields. PALMARY Internal Grinding Machines are divided into two types, including NC Numerical Control Series and CNC Series. These machine bodies are made from Meehanite cast iron mechanism that has been braised and machined to ensure high quality and durability.

In addition to grinding the inner diameter, PALMARY Internal Grinding Machines, with the function of multi-axis or work head spindle rotation, has been able to process grinding applications such as inner diameter, outer diameter, end face, and R angle.

Internal Grinding Machines are widely applied to the processing of precision components with various inner diameters. They can effectively grind the inner surface to meet strict geometric accuracy and surface roughness requirements. These machines are extensively used in the automobile, motorcycle, mold manufacturing, and precision parts industries.

For applications that require higher automation and precision, PALMARY also offers CNC ID Grinding Machines, which provide excellent performance in complex internal grinding operations.

We welcome you to contact us for more information or to find the most suitable internal grinding solution for your production needs.

NC Series

IG-150-NC / IG-150-2NC

CNC Series

FAQ

Q1. What is an internal grinder used for?

An internal grinder is used to grind the inner diameter of holes, bores, and internal profiles. It is suitable for parts that require accurate bore size, roundness, concentricity, and smooth internal surface finish.

Q2. What parts are suitable for internal grinding?

Q3. Can an internal grinder process blind holes or through holes?

Q4. How do I choose an internal grinder for small bore grinding?

Q5. Can one internal grinder process ID, OD, and end face grinding?

Q6. What causes taper, chatter marks, or poor surface finish in internal grinding?

Q7. When should I choose a CNC internal grinder?

Q8. What is the difference between internal grinding and cylindrical grinding?