φ400mm Max Workpiece Swing · φ100mm Max Grinding Hole Diameter · 900mm Effective Grinding Depth

The MX-2001 is a specialized CNC deep-hole internal grinding machine, engineered to deliver extreme depth capability (up to 900mm) while maintaining micron-level precision. With a grinding diameter range of φ40–φ100mm and max. workpiece swing of φ400mm, it’s tailored for long, narrow, and high-tolerance inner diameter components.

MX2001 Series

Regular maintenance

Spare parts supply

On-site installation service

Customized design

Key Features

● Ultra-Deep Internal Grinding Capability (900mm): Ideal for long cylinders and tubes with critical bore tolerances.

● Wide Diameter Range (φ40–φ100mm): Covers most industrial-grade sleeve, pipe, and casing inner diameters.

● High Rigidity Bed + Dynamic Balancing System: Controls vibration and runout for consistent surface finish in long bores.

● Programmable CNC Control (X/Z axes): Supports automatic cycle sequencing, dwell control, and multi-pass grinding.

● Optional Bore Gauge Feedback System: Enables real-time monitoring and adaptive compensation of internal size.

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Recommended Configurations

● Feeding & Motion System: Servo motor, ball screw, precision rails, gap compensation

● Wheel Dressing System: Internal wheel dresser (single-point/roller/diamond), automatic cycle setting

● Cooling & Chip Removal: Cooling circulation, adjustable nozzles, filtration (magnetic separator + paper filter), chip conveyor

● Control & Automation: HMI touch screen, automatic loading/unloading

● Measurement & Compensation: Contact/laser probe, rotary encoder/displacement sensor

● Safety & Protection: Enclosed cover, interlock system, emergency stop, wheel protection, spark/dust protection

● Accessories & Options: Workpiece positioning stand, internal fixture, lighting, non-standard fixtures

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Application Case

● Client: Electronics structure supplier (Thailand)

● Workpiece: Aluminum alloy support frame, 1280 × 640 mm

● Setup: VMC 1370 with 10000 rpm spindle, 30T ATC, Siemens controller

● Results: • Completed frame milling and corner profiling in one setup • Positioning accuracy held within ±0.007 mm across full table

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Specifications	Unit	MX-2001
Grinding hole diameter	mm	φ40-φ100
Effective grinding depth	mm	900
Max.swinging of the workpiece	mm	φ400
Max.table travel(axis Z)	mm	1200
Max.table travel(axis X)	mm	500
Work speed	r/min	5-500
Wheel spindle speed	r/min	5000-12000
Total power	KW	25
Roundness of the bore	mm	0.005
Cylindricity of the bore	mm	0.01
Surface roughness of the bore	μm	Ra0.4
Surface roughness of the endface	μm	Ra0.5
Coaxiality of bore to OD	mm	0.01
Machine weight	Kg	10000

MN CATALOG.pdf

Frequently Asked Questions

1、 I only have part drawings. Can you recommend a suitable internal cylindrical grinding machine?

Absolutely! Minnuo has an experienced pre-sales technical team. As long as you provide the part drawings, whether it's for internal hole machining with an internal cylindrical grinding machine or a customized model with combined functions, we can recommend a single machine within 10 minutes. For solutions involving multiple machines, a complete proposal will be provided within 5 working days.

2、 Can I customize a CNC internal cylindrical grinding machine to match my process requirements?

Yes. I can customize a CNC internal cylindrical grinding machine based on workpiece size, accuracy requirements, automation level, and more—including spindle type, grinding wheel configuration, automatic loading/unloading system, and cooling system—so it fully matches my on-site production needs.

3、How is the quality of your internal cylindrical grinding machines guaranteed?

We are equipped with multiple high-end international machining centers, ensuring that all key components of the internal cylindrical grinding machine have high precision and consistency. Each machine is fully tested before delivery and comes with a detailed quality inspection report.

4、What is the typical delivery time?

For standard models, we have inventory available for fast delivery. For customized internal cylindrical grinding machines, the delivery time is generally 30–45 working days. We will confirm the exact timeline based on the complexity of the order.

5、Do you support full machine customization?

Yes. Whether it’s the control system, machine bed design, grinding range, or sheet metal guarding, I can fully customize the internal cylindrical grinding machine based on my specific needs. You also offer combined solutions like internal and external cylindrical grinding machines in a single setup.

6、 What types of workpieces are suitable for an internal bore grinding machine?

An internal bore grinding machine is mainly used for machining internal holes of parts such as sleeves, gear bores, bearing inner rings, and hydraulic components. You can use it to achieve high-precision grinding of inner bores, stepped holes, tapered holes, and more. It is widely applied in industries like automotive, hydraulics, and mold manufacturing.

7、What level of accuracy can a high precision internal grinding machine achieve?

Our high precision internal grinding machine can consistently achieve machining accuracy within 2μm, and some high-end models can reach below 1μm in a temperature-controlled workshop. If I have high requirements for roundness or coaxiality, I can also choose optional in-process measuring systems and active dressing units.

8、Is it complicated to maintain an internal cylindrical grinding machine during use?

Not at all. You only need to regularly check the lubrication oil, grinding wheel wear, spindle operation status, and whether the cooling system is functioning properly. Our internal cylindrical grinding machine is designed with a compact structure and easy maintenance in mind. We also provide maintenance manuals and training services to help you complete daily upkeep with ease.