Precision Internal Grinder

Precision Internal Grinder
Details:
The CNC Precision Internal Grinder machine is professional two-axis CNC precision equipment specially designed for inner hole and end face grinding of cylindrical parts. It supports deep hole grinding operations, widely applied to gear cylinders, bearing sleeves, hydraulic sleeves and other precision bushing workpieces. Equipped with original Siemens CNC control system and 51000rpm high-speed grinding electric spindle, this internal grinder adopts integral cast rigid bed and flat-V hydrostatic guideway, delivering ultra-stable grinding performance. It can reach ultra-high machining precision: inner hole roundness 0.0015mm, cylindricity 0.003mm, surface roughness Ra0.32μm, perfectly meeting mass precision grinding demands for automotive, bearing, hydraulic industries.
Product Number:MK2110Q
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Description
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Shanghai Antishicnc Machine Equipment Co., Ltd. is one of the most reliable manufacturers and suppliers of precision internal grinder in China, specialized in providing high quality machines with low price. We warmly welcome you to wholesale durable precision internal grinder for sale here from our factory.

 

Core Structural & Performance Advantages

 

The CNC Precision Internal Grinder machine is Full enclosed safety cover design, effectively blocks grinding dust and coolant splashing, safe and clean workshop environment

 

2-axis CNC linkage controlled by original Siemens system, stable operation, rich grinding program library

 

Integral heavy cast iron bed with multiple stress relief treatments, anti-deformation, ultra-high overall rigidity

 

Paste plastic guide rail structure, low vibration, improved feed sensitivity and extended machine service life

 

High-precision ball screw for X/Z feed axis, tiny positioning error, consistent grinding size batch after batch

 

Workpiece headstock with AC variable frequency stepless speed regulation (20~400rpm), suitable for different metal materials

 

Flat-V hydrostatic oil film worktable, integral wear-resistant casting, smooth reciprocating movement without creeping

 

High-rigidity high-speed grinding spindle, max speed up to 51000rpm, supports fine finish ultra-smooth surface

 

Standard 3-jaw manual chuck, optional hydraulic chuck to match automatic loading & unmanned production line

 

Independent large-capacity cooling water tank, continuous cooling during grinding to avoid thermal deformation of workpieces

 

Max grinding wheel feed stroke 105mm, max grinding depth 150mm, compatible with deep inner hole processing

Internal Grinder Technical Parameters

 

CNC Internal Grinder MK2110Q

Specifications

Bore diameter of grinding

Ø10-100mm

Maximum grinding depth

150mm

Maximum loading weight

50KG

Distance from center of the headstock to bottom of the bed

1200mm

Maximum rotate diameter over table with cover

320mm

Maximum rotate diameter over table without cover

400mm

Maximum movement of worktable(Z Axis)

400mm

Maximum movement of grinding wheel frame(X Axis)

105mm

Z Axis top speed

5m/min

X Axis top speed

5m/min

Speed of work piece spindle

20~400rpm

Speed of grinding wheel spindle

51000rpm Max.

Maximum swivel angle of work piece spindle

20°

Total Power

11kw

Power of z-axis servo motor

2.2kw

Power of x-axis servo motor

1.5kw

Power of workpiece motor

0.75kw

Power of hydraulic motor

1.1kw

Overall Dimension(L*W*H)

2660*1860*2100mm

Net Weight

3800kg

 

Standard & Optional Configuration

 

Internal Grinder Standard Complete Configuration

 

  1. Integral cast iron machine bed
  2. Reciprocating worktable & full feed transmission system
  3. Independent circulating cooling system
  4. Complete hydraulic power unit system
  5. Precision workpiece headstock assembly
  6. High-speed high-precision grinding spindle unit
  7. Diamond wheel dresser
  8. Siemens CNC electrical control system
  9. Full safety protective enclosure & export wooden packaging set

 

Core Brand Component List

 

S/N

Name

Origin/Brand

Qty

1

Control system

Siemens

1 Set

2

X-axis servo motor

Siemens

1 Set

3

Z-axis servo motor

Siemens

1 Set

4

Workpiece motor

WN Brand

1 Set

5

Grinding wheel motor

WN Brand

1 Set

6

Oil pump motor

WN Brand

1 Set

7

Pump motor

CHN

1 Set

8

Spindle bearing

HRB Bearing

1 Set

10

Guide rail

Yigong China

1 Set

11

Ball screw

Yigong China

1 Set

12

Electronic pulse handwheel

NEMICON Japan

1 Set

13

Fault warning lamp

SH

1 Set

14

Auto tooling system

ZY Precision

1 Set

 

Precision Internal Grinder Industry Application

 

Bearing manufacturing
 

Bearing Manufacturing Industry

Grinding inner holes of bearing sleeves, bearing inner rings, needle bearing bushes; meets ultra-strict roundness and cylindricity requirements for high-speed bearing operation.

Components and parts industry
 

Automotive Parts Industry

Process automotive gear cylinders, transmission shaft sleeves, hydraulic valve sleeves; consistent precision for mass auto parts batch production.

Hydraulic
 

Hydraulic & Pneumatic Component Industry

Grinding hydraulic cylinder sleeves, valve body inner holes, sealing bushings; low surface roughness ensures leak-free hydraulic assembly.

Precision Machinery
 

Precision Machinery & Mold Industry

Machining mold sleeves, precision positioning bushings, small deep hole structural parts; supports high-precision finishing of alloy steel, stainless steel.

 Hardware Precision Parts
 

General Hardware Precision Parts

Various cylindrical sleeves, copper bushings, steel sleeves, small deep-hole rotating parts for mechanical equipment.

Why Choose Us as Your Grinding Machine Manufacturer

Professional Manufacturing Strength

20+ years precision grinding machine R&D & production experience, all grinders pass ISO9001 quality inspection, products exported to over 50 countries worldwide.

Ultra High Stable Grinding Precision

Adopt cast rigid bed + hydrostatic guideway + Siemens full digital control, stable micron-level precision for long-term mass production, machine service life extended ≥3 years.

Cost-Effective Customized Solutions

Tailored grinding schemes according to your workpiece size, material and precision demand, reduce your reject rate & comprehensive processing cost by 15%–30%.

Fast Delivery & Global After-Sales Support

Standard machine models delivery time: 15–30 working days; customized configuration: 30–45 days. We supply overseas on-site installation, operator training, 24-hour remote technical support and long-term spare parts supply.

Frequently Asked Questions 

 

Q1: What workpieces is CNC inner grinder suitable for?

A: It is specialized in inner hole & end face grinding of bearing sleeves, gear cylinders, hydraulic sleeves and other cylindrical bush parts, and supports deep hole grinding processing.

Q2: What is the highest surface finish this machine can reach?

A: Stable surface roughness Ra0.32μm, inner hole roundness up to 0.0015mm, ideal for high-precision matching parts.

Q3: What control system does this internal grinder equip?

A: Original Siemens CNC system with complete grinding macro programs, easy programming and stable long-time running.

Q4: Can this Precision Internal Grinder machine match automatic feeding production line?

A: Yes, we support optional hydraulic chuck and automatic loading/unloading module to realize unmanned continuous production.

Q5: Do you accept OEM & ODM custom modification?

A: Full OEM & ODM service is available, including fixture, spindle, program and machine appearance customization.

Q6: How long is the delivery cycle?

A: Standard stock models:15–30 days; customized configuration machines:30–45 working days.

Q7: What after-sales service do you provide?

A: We offer on-site installation & commissioning, operation training, 24h online remote troubleshooting and long-term spare parts supply globally.

 

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