Centerless Grinding Machine
Before shipping , SJR Machinery Co., Ltd.’sCNC Centerless Grinding Machine are packed with strong wooden case with waterproof cloth to avoid any damage.
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Salient Feature:

1.The bearing of grinding wheel spindle is four plates dynamic tiltable ball bearing bush, with high precision.

2.The bearing of regulating wheel spindle adopts double support & four plates dynamic tiltable ball bearing bush, with high precision

3.The feeding system equipped servo motor with high precision planetary gear reducer, feeding through coupling driving ball-screw.

4.AC frequency converter is used for regulating wheel step-less speed control.

5.The grinding wheel dresser driven by servo motor and ball screw, dressing any steps without any gauge finder. While regulating wheel dresser driven by gear motor and ball screw, step-less speed control, and good performance of low speed moving.

6.The machine operated by 10’ touch screen, auto plunge feeding, load, speed, time and steps can be adjusted.

7.Equipped SIEMENS CNC electrical system


Main Application:

The grinder is mainly used for through-feed grinding of cylindrical surface and ring-type parts, as well as for plunge-cut grinding of various stepped, cones that the conicity less than 1:20 .

Plunge feed


(1)Grinding diameter

5-60mm

(2)Grinding length

195mm

Thru-feed


(1)Grinding diameter

5-60mm

(2)Grinding length

250mm

Grinding wheel specification

P500×200×305mm

Grinding wheel specification

PSA350×200×127mm

Grinding wheel speed

1318r/min

Regulating wheel speed

10~200 r/min

Swiveling angle of regulating wheel


(1)vertical

-1°~+5°

(2)horizontal

0°~+5°

Feeding Amount of Grinding Wheel

0.001mm

Feeding Amount of Plunge Grinding

100mm

Min Feeding Amount of Dresser

0.001mm

Height from centerline of ri.wheel & reg.wheel to workrest

250mm

Power

17.96KW

(1)Grinding wheel motor

15KW

(2)Regulating wheel motor

1.5KW

(3)Hydraulic pump motor

1.1KW

(4)Lubricant pump motor

0.09KW

(5)Coolant Pump Motor

0.09KW

(6)Magnetic Coolant Separator Motor

0.18KW

Overall dimensions (L*W*H)

2050×1680×1380mm

Weight

About 3200Kg

Work Accuracy(standard bars)


(1)Roundness

0.001

(2)Cylindricity

0.002

(3)Surface Roughness

Ra0.16 μm

Name

Specification

QTY

Unit

Supplier

Siemens CNC

808D

1

set

Siemens, Germany

Servo Motor


3

sets

Siemens, Germany

HMI


1

set

Siemens, Germany

Ball Screw


4

sets

Nanjing Technical Equipment Manufacture Co., LTD, China

Inverter of Regulating Wheel

1.5KW

1

piece

HUICHUAN, China

Converter AC Motor of Regulating Wheel

Y2 1.5KW

1

piece

Wuxi, China

Motor of Grinding Wheel

Y2 15KW

1

piece

Wuxi, China

Low Voltage Device


1

set

Zhengtai, China

Model

M1040B

M1050A

M1080B

M1083B

Picture

dia.

thru-feed: 2-40mm

thru-feed: 5-50mm

thru-feed: 5-80mm

thru-feed: 10-150mm

infeed: 7-10mm

infeed: 7-50mm

infeed: 5-80mm

infeed: 10-150mm

max length

thru-feed: 140mm

thru-feed: 160mm

thru-feed: 180mm

thru-feed: 250mm

infeed: 120mm

infeed: 140mm

infeed: 140mm

infeed: 190mm

grinding wheel

PSA350*125*127mm

P400*150*203mm

P500*150*305mm

P600*200*305mm

regulating wheel

PSA250*125*75mm

PSA300*150*127mm

PSA300*150*127mm

PDA350*200*203mm

handle feed amount per division

0.002 mm

0.002 mm

0.005 mm

0.01 mm

dresser feed amount per division

0.01 mm

0.01 mm

0.01 mm

0.015mm

height from centerlineof gri.wheel ®.wheel to workrest bottom

190 mm

120 mm

210 mm

285 mm

total power

9 kw

13.78 kw

17 kw

25.8 kw

grinding wheel motor

7.5 kw

11 kw

15 kw

22 kw

regulating wheel motor

1.1 kw

1.5 kw

1.5 kw

3 kw

machine dimension(L*W*H)

1550*1300*1405 mm


1920*1681*1479 mm

1950*1580*1485 mm

2650*1500*1800 mm

machine weight

2000 kg

2800 kg

3500 kg

7000 kg

roundness

0.002 mm

0.002 mm

0.002 mm

0.002 mm

cylindricity

0.003 mm

0.003 mm

0.003 mm

0.003 mm

surface roughness

Ra. 0.32 μm

Ra. 0.32 μm

Ra. 0.32 μm

Ra. 0.32 μm

voltage

3 N, 380±10%

3 N, 380±10%

3 N, 380±10%

3 N, 380±10%

current

20 A

27 A

32 A

35 A

frequency

50 HZ

50 HZ

50 HZ

50 HZ

noise value

<50 DB

<50 DB

<50 DB

<50 DB

Model

M10100

M10200

M11100

M11200

Picture

dia.

thru-feed: 10-100mm

thru-feed: 10-200mm

thru-feed: 10-100mm

thru-feed: 10-200mm

infeed: 10-100mm

infeed: 10-200mm

infeed: 10-100mm

infeed: 10-200mm

max length

thru-feed: 210mm

thru-feed: 300mm

thru-feed: 300mm

thru-feed: 300mm

infeed: 195mm

infeed: 390mm

infeed: 390mm

infeed: 390mm

grinding wheel

P500*200*305mm

P600*400*305mm

P500*400*305mm

P500*600*305mm

regulating wheel

PDA350*200*203mm

P350*400*203mm

P350*400*203mm

P350*600*203mm

handle feed amount per division

0.002 mm

0.002 mm

0.002 mm

0.002 mm

dresser feed amount per division

0.01 mm

0.01 mm

0.01 mm

0.01 mm

height from centerlineof gri.wheel ®.wheel to workrest bottom

255 mm

290 mm

290 mm

290 mm

total power

21.66 kw

41.47 kw

25.77 kw

41.47 kw

grinding wheel motor

18.5 kw

30 kw

22 kw

37 kw

regulating wheel motor

2.2 kw

2.2 kw

2.2 kw

3 kw

machine dimension(L*W*H)

2675*1505*1615 mm

3600*1850*1700 mm

3500*1850*1720 mm

3500*1850*1720 mm

machine weight

4500 kg

10000 kg

10000 kg

10000 kg

roundness

0.002 mm

0.002 mm

0.002 mm

0.002 mm

cylindricity

0.003 mm

0.003 mm

0.003 mm

0.003 mm

surface roughness

Ra. 0.32 μm

Ra. 0.32 μm

Ra. 0.32 μm

Ra. 0.32 μm

voltage

3 N, 380±10%

3 N, 380±10%

3 N, 380±10%

3 N, 380±10%

current

26 A

40 A

30 A

48 A

frequency

50 HZ

50 HZ

50 HZ

50 HZ

noise value

<50 DB

<50 DB

<50 DB

<50 DB

Model

MK1040

MK1050

MG10100

MK1060

Picture

dia.

thru-feed: 2-40mm

thru-feed: 5-50mm

thru-feed: 10-100mm

thru-feed: 5-60mm

infeed: 7-10mm

infeed: 7-50mm

infeed: 10-100mm

infeed: 5-60mm

max length

thru-feed: 140mm

thru-feed: 160mm

thru-feed: 210mm

thru-feed: 250mm

infeed: 120mm

infeed: 140mm

infeed: 195mm

infeed: 195mm

grinding wheel

PSA350*125*127mm

P400*150*203mm

P500*200*305mm

P500*200*305mm

regulating wheel

PSA250*125*75mm

PSA300*150*127mm

PSA350*200*127mm

PSA350*200*127mm

handle feed amount per division

0.001 mm

0.001 mm

0.001 mm

0.001 mm

dresser feed amount per division

0.01 mm

0.01 mm

0.01 mm

0.01 mm

height from centerlineof gri.wheel ®.wheel to workrest bottom

190mm

120mm

255 mm

250 mm

total power

9 kw

13.78 kw

22 kw

19.26 kw

grinding wheel motor

7.5 kw

11 kw

18.5 kw

15 kw

regulating wheel motor

1.1 kw

1.5 kw

1.5 kw

1.5 kw

machine dimension(L*W*H)

1550*1300*1405 mm

1920*1681*1479 mm

2675*1505*1615 mm

2050*1680*1380 mm

machine weight

2000 kg

2800 kg

4500 kg

3200 kg

roundness

0.002 mm

0.002 mm

0.001 mm

0.001 mm

cylindricity

0.003 mm

0.003 mm

0.0018 mm

0.002 mm

surface roughness

Ra. 0.32 μm

Ra. 0.32 μm

Ra. 0.16 μm

Ra. 0.16 μm

voltage

3 N, 380±10%

3 N, 380±10%

3 N, 380±10%

3 N, 380±10%

current

20 A

27 A

26 A

22 A

frequency

50 HZ

50 HZ

50 HZ

50 HZ

noise value

<50 DB

<50 DB

<50 DB

<50 DB

Model

HCGM-S150

HCGM-S200

HCGM-M200

HCGM-M400

Picture

dia.

thru-feed: 2-45mm

thru-feed: 2-60mm

thru-feed: 5-100mm

thru-feed: 10-200mm

infeed: 2-45mm

infeed: 2-60mm

infeed: 5-100mm

infeed: 10-200mm

max length

thru-feed: 145mm

thru-feed: 200mm

thru-feed: 200mm

thru-feed: 300mm

thru-feed: 145mm

infeed: 190mm

infeed: 190mm

infeed: 390mm

grinding wheel

PSA400*150(200)*203mm

P500*200*305mm

P600*200/250*305mm

P600*400*305mm

regulating wheel

P250*150(200)*127mm

P350*200*203mm

P350*200/300*203mm

P350*400*203mm

handle feed amount per division

0.001mm

0.001 mm

0.001 mm

0.001 mm

dresser feed amount per division

0.001mm

0.001mm

0.001mm

0.001 mm

height from centerlineof gri.wheel ®.wheel to workrest bottom

190mm

200 mm

200 mm

200 mm

total power





grinding wheel motor

11 kw

18.5 kw

22 kw

30 kw

regulating wheel motor

1.5 kw

3 kw

3 kw

3 kw

machine dimension(L*W*H)

2600*1900*1500mm

2500*1610*1600 mm

3200*1785*1800 mm

3300*1780*1900 mm

machine weight

3000 kg

5000 kg

7500 kg

9000 kg

roundness

0.001 mm

0.001 mm

0.001 mm

0.001 mm

cylindricity

0.0018mm

0.0018 mm

0.0018 mm

0.0018 mm

surface roughness

Ra. 0.16mm

Ra. 0.16 μm

Ra. 0.16 μm

Ra. 0.16 μm

voltage

3 N, 380±10%

3 N, 380±10%

3 N, 380±10%

3 N, 380±10%

current

26 A

28 A

32 A

40 A

frequency

50 HZ

50 HZ

50 HZ

50 HZ

noise value

<50 DB

<50 DB

<50 DB

<50 DB

Model

HCGM-L600

MK11100

MK10200

MK11200

MK11250

Picture

dia.

thru-feed: 10-300mm

thru-feed: 10-100mm

thru-feed: 10-200mm

thru-feed: 10-200mm

thru-feed: 10-250mm

infeed: 10-300mm

infeed: 10-100mm

infeed: 10-200mm

infeed: 10-200mm

infeed: 10-250mm

max length

thru-feed: 350mm

thru-feed: 300mm

thru-feed: 300mm

thru-feed: 300mm

thru-feed: 300mm

infeed: 590mm

infeed: 390mm

infeed: 390mm

infeed: 390mm

infeed: 590mm

grinding wheel

P600*600*305mm

P500*400*305mm

P600*400*305mm

P500*600*305mm

P600*600*305mm

regulating wheel

P350*600*203mm

P350*400*203mm

P350*400*203mm

P350*600*203mm

P350*600*203mm

handle feed amount per division

0.001 mm

0.002 mm

0.002 mm

0.002 mm

0.001 mm

dresser feed amount per division

0.001 mm

0.01 mm

0.01 mm

0.01 mm

0.01 mm

height from centerlineof gri.wheel ®.wheel to workrest bottom

260 mm

290 mm

290 mm

290 mm

200 mm

total power

49.47 kw

25.77 kw

41.47 kw

41.47 kw

49.47 kw

grinding wheel motor

45 kw

22 kw

30 kw

37 kw

45 kw

regulating wheel motor

7.5 kw

2.2 kw

2.2 kw

3 kw

3 kw

machine dimension(L*W*H)

4400×4300×1700 mm

3500*1850*1720 mm

3600*1850*1700 mm

3500*1850*1720 mm

3700*1850*1820 mm

machine weight

12000 kg

10000 kg

10000 kg

10000 kg

11000 kg

roundness

0.001 m m

0.002 mm

0.002 mm

0.002 mm

0.002 mm

cylindricity

0.0018 mm

0.003 mm

0.003 mm

0.003 mm

0.005 mm

surface roughness

Ra. 016 μm

Ra. 0.32 μm

Ra. 0.32 μm

Ra. 0.32 μm

Ra. 0.32 μm

voltage

3 N, 380±10%

3 N, 380±10%

3 N, 380±10%

3 N, 380±10%

3 N, 380±10%

current

63 A

30 A

40 A

40 A

55 A

frequency

50 HZ

50 HZ

50 HZ

50 HZ

50 HZ

noise value

<50 DB

<50 DB

<50 DB

<50 DB

<50 DB

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