CNC Cylindrical Grinders

Loading Images
wpif2_loading
CRG CNC

CRG, CRG-AW & CRG-A Series High Precision CNC Cylindrical Grinder

KAAST Machine Tools introduces CRG, CRG-AW & CRG-A series CNC cylindrical grinders with superb grinding capabilities and choice of control options. The customers’ requirements can be met with a choice of many machine options such as a touch probe, automatic sizing device, or swing down ID grinding attachment. The complete product line offers a wide range of between center distances and center heights in both plunge and angular wheel head designs. Automation and turnkey solutions are available upon request.

CRG, CRG-AW & CRG-A Series grinders are designed for high precision, high efficiency, and ease of operation. They are suitable for various applications including but not limited automotive, aerospace, medical instrument, tooling, job shop, and mold and roll grind industries.

A selection of CNC control systems including Fanuc, Mitsubishi, and Siemens are available. For small and medium size workpiece grinding operations, e-tech incorporates the iGrind graphic conversational programing software. Advanced machine concept, innovative design and cutting-edge components from reputable manufacturers are key elements which characterize these CNC cylindrical grinding machines.

Standard grinding cycles include dressing of the wheel, as well as grinding cycles of concave and convex surfaces. Specially designed fine feeds allow grinding results with mirrored surfaces, to an accuracy of 0.1 micron. A heavy Meehanite cast frame, heat treated and stress relieved, provides a solid foundation for the CRG CNC cylindrical grinding machines.

All guideways are hardened and precision ground to ensure permanent accuracy and wear resistance. Another highlight of this series is the special table design, which uses a hydrostatic system for extremely smooth motion and precision. The grinding spindle is made of high-quality steel and uses a high-precision hydrostatic spindle bearing that excludes metal-to-metal contact and thus guarantees a true running accuracy of 0.5 microns. A wide range of options for your special applications are available on request.

CRG CNC • Plunge-type Cylindrical Grinder
CRG-AW • Angular-type Cylindrical Grinder
CRG-A • Plunge-type Cylindrical Grinder with Angular head

Standard Configuration

  • Fanuc CNC control (2 axles)
  • Including grinding wheel flange (Balanced and mounted)
  • Precision glass scale in the X-axis
  • Diamond dresser (can be mounted on the table)
  • Separate hydraulic unit with oil/air cooling
  • Coolant system
  • Work zone halogen lighting
  • Fixed centers (2 pcs)
  • Operating tools
  • Manual

Optional Configuration

  • Internal grinding unit
  • Coolant system with paper filter or magnetic separator
  • Driving dog (various)
  • 2-point steady rest
  • 3-point steady rest
  • Touch probe for axial positioning of work pieces
  • Automatic grinding wheel balance counter system
  • Grinding wheel Balancing stand and balancing shaft (manually)
  • Automatic IN PROCESS work piece measurement
  • Oil / coolant mist extraction
  • Hydraulic tailstock
  • Headstock with bore Ø80mm
  • Complete enclosure of the working space
  • Precision glass scale in the Z-axis
  • Automatic loading and unloading
CRG CNC • Plunge-type Cylindrical Grinder
CRG-AW • Angular-type Cylindrical Grinder
CRG-A • Plunge-type Cylindrical Grinder with Angular head
Specifications 250/500 320/600 320/1000 320/1500 320/2000 320/2500 320/3000
9" x 20" 12" x 24" 12” x 39" 12” x 59" 12” x 78" 12” x 98" 12” x 118"
Swing over table mm Ø250 (Ø9.8") Ø320 (Ø12.6")
Max grinding diameter mm Ø250(Ø9.8") Ø300 (Ø12")
Infeed angle ° 60°
Distance between centers mm 500 (19.6") 600 (23.6") 1000 (39") 1500 (59") 2000 (78") 2500 (98") 3000 (118")
Max. load between centers kg 80 (175 lbs) 150 (330 lbs) 250 (550 lbs)
GRINDING WHEEL
Diameter x Width x Bore mm Ø455x50xØ127 (18x2x5") Ø510x50-100xØ152.4 (20x2x6")
Motor rated power kW 3.75 (5 hp) 7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speed rpm 1400 1250 [opt.1650]
WORKHEAD
Swiveling angle ° 90°
Spindle speed (infinite variable) rpm 10 ~ 600
Motor rated power kW 0.75 (1 Hp)
Center taper MT 3 MT 4 [opt. MT 5]
TAILSTOCK
Quill travel mm 25 (1") 25 (1") [opt. 50/75 (2/3")]
Center taper MT 3 MT 4 [opt. MT 5]
X-Axis Travel mm 200 (7.8") 270 (10.6")
Max rapid feed rate m/min 6 (236"/min)
Min. increment mm 0.0001 (0.000004")
Z-Axis Travel mm 750 (29.5") 850 (33.4") 1250 (49") 1850 (73") 2450 (96") 3050 (120") 3650 (144")
Swiveling angle ° ±7° ±9° ±7° ±5° ±3° ±2°
Max. rapid feed rate m/min 8 (315"/min) 10 (394"/min)
Min. increment mm 0.0001 (0.000004")
Weight kg 3100 (6,280 lbs) 5600 (12,320 lbs) 5800 (12,320 lbs) 6300 (13,860 lbs) 6700 (14,740 lbs) 7100 (15,620 lbs) 7500 (16,500 lbs)
Item No. 3100110 3100111 3100112 3100113 3100114
Specifications 380/600 380/1000 380/1500 380/2000 380/2500 380/3000
15" x 24" 15" x 39" 15" x 59" 15" x 78" 15" x 98" 15" x 118"
Swing over table mm Ø380 (15")
Max grinding diameter mm Ø360 (14.1")
Infeed angle ° 60°
Distance between centers mm 600 (23.6") 1000 (39") 1500 (59") 2000 (78") 2500 (98") 3000 (118")
Max. load between centers kg 150 (330 lbs) 250 (550 lbs)
GRINDING WHEEL
Diameter x Width x Bore mm Ø510x50-100xØ152.4 (20x2x6")
Motor rated power kW 7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speed rpm 1250 [opt.1650]
WORKHEAD
Swiveling angle ° 90°
Spindle speed (infinite variable) rpm 10 ~ 600
Motor rated power kW 0.75 (1 Hp)
Center taper MT 4 [opt. MT 5]
TAILSTOCK
Quill travel mm 25 (1") [opt. 50/75 (2/3")]
Center taper MT 4 [opt. MT 5]
X-Axis Travel mm 270 (10.6")
Max rapid feed rate m/min 6 (236"/min)
Min. increment mm 0.0001 (0.000004")
Z-Axis Travel mm 850 (33.4") 1250 (49") 1850 (73") 2450 (96") 3050 (120") 3650 (144")
Swiveling angle ° ±9° ±7° ±5° ±3° ±2°
Max. rapid feed rate m/min 10 (394"/min)
Min. increment mm 0.0001 (0.000004")
Weight kg 3100 (6,280 lbs) 5800 (12,320 lbs) 6300 (13,860 lbs) 6700 (14,740 lbs) 7100 (15,620 lbs) 7500 (16,500 lbs)
Item No. 3100115 3100116 3100117 3100119
Specifications 500/600 500/1000 500/1500 500/2000 500/2500 500/3000
19" x 24" 19" x 39" 19" x 59" 19" x 78" 19" x 98" 19" x 118"
Swing over table mm Ø500 (19.6")
Max grinding diameter mm Ø480 (19")
Infeed angle ° 60°
Distance between centers mm 600 (23.6") 1000 (39") 1500 (59") 2000 (78") 2500 (98") 3000 (118")
Max. load between centers kg 150 (330 lbs) 250 (550 lbs)
GRINDING WHEEL
Diameter x Width x Bore mm Ø510x50-100xØ152.4 (20x2x6")
Motor rated power kW 7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speed rpm 1250 [opt.1650]
WORKHEAD
Swiveling angle ° 90°
Spindle speed (infinite variable) rpm 10 ~ 600
Motor rated power kW 0.75 (1 Hp)
Center taper MT 4 [opt. MT 5]
TAILSTOCK
Quill travel mm 25 (1") [opt. 50/75 (2/3")]
Center taper MT 4 [opt. MT 5]
X-Axis Travel mm 270 (10.6")
Max rapid feed rate m/min 6 (236"/min)
Min. increment mm 0.0001 (0.000004")
Z-Axis Travel mm 850 (33.4") 1250 (49") 1850 (73") 2450 (96") 3050 (120") 3650 (144")
Swiveling angle ° ±9° ±7° ±5° ±3° ±2°
Max. rapid feed rate m/min 10 (394"/min)
Min. increment mm 0.0001 (0.000004")
Weight kg 3100 (6,280 lbs) 5800 (12,320 lbs) 6300 (13,860 lbs) 6700 (14,740 lbs) 7100 (15,620 lbs) 7500 (16,500 lbs)
Item No. 3100120 3100121 3100122 3100123
Specifications 250/500 320/600 320/1000 320/1500 320/2000
9" x 20" 12" x 24" 12” x 39" 12” x 59" 12” x 78"
Swing over table mm Ø250 (Ø9.8") Ø320 (Ø12.6")
Max grinding diameter mm Ø250(Ø9.8") Ø300 (Ø12")
Infeed angle ° 60°
Distance between centers mm 500 (19.6") 600 (23.6") 1000 (39") 1500 (59") 2000 (78")
Max. load between centers kg 80 (175 lbs) 150 (330 lbs) 250 (550 lbs)
GRINDING WHEEL
Diameter x Width x Bore mm Ø510x50xØ127 (20x2x5") Ø510x50xØ152.4 (20x2x6")
Motor rated power kW 3.75 (5 hp) 7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speed rpm 1400 1250 [opt.1650]
WORKHEAD
Swiveling angle ° 90°
Spindle speed (infinite variable) rpm 10 ~ 600
Motor rated power kW 0.75 (1 Hp) 1.5 (2 Hp)
Center taper MT 3 MT 4 [opt. MT 5]
TAILSTOCK
Quill travel mm 25 (1") 25 (1") [opt. 50/75 (2/3")]
Center taper MT 3 MT 4 [opt. MT 5]
X-Axis Travel mm 200 (7.8") 270 (10.6")
Max rapid feed rate m/min 6 (236"/min)
Min. increment mm 0.0001 (0.000004")
Z-Axis Travel mm 750 (29.5") 850 (33.4") 1250 (49") 1850 (73") 2450 (96")
Swiveling angle ° ±7° ±9° ±7° ±5°
Max. rapid feed rate m/min 8 (315"/min) 10 (394"/min)
Min. increment mm 0.0001 (0.000004")
Weight kg 3100 (6,280 lbs) 5600 (12,320 lbs) 5800 (12,320 lbs) 6300 (13,860 lbs) 6700 (14,740 lbs)
Item No. 3100053 3100054 3100055 3100056 3100057
Specifications 380/600 380/1000 380/1500 380/2000
15" x 24" 15" x 39" 15" x 59" 15" x 78"
Swing over table mm Ø380 (15")
Max grinding diameter mm Ø360 (14.1")
Infeed angle ° 60°
Distance between centers mm 600 (23.6") 1000 (39") 1500 (59") 2000 (78")
Max. load between centers kg 150 (330 lbs) 250 (550 lbs)
GRINDING WHEEL
Diameter x Width x Bore mm Ø510x50xØ152.4 (20x2x6")
Motor rated power kW 7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speed rpm 1250 [opt.1650]
WORKHEAD
Swiveling angle ° 90°
Spindle speed (infinite variable) rpm 10 ~ 600
Motor rated power kW 0.75 (1 Hp)
Center taper MT 4 [opt. MT 5]
TAILSTOCK
Quill travel mm 25 (1") [opt. 50/75 (2/3")]
Center taper MT 4 [opt. MT 5]
X-Axis Travel mm 270 (10.6")
Max rapid feed rate m/min 6 (236"/min)
Min. increment mm 0.0001 (0.000004")
Z-Axis Travel mm 850 (33.4") 1250 (49") 1850 (73") 2450 (96")
Swiveling angle ° ±9° ±7° ±5°
Max. rapid feed rate m/min 10 (394"/min)
Min. increment mm 0.0001 (0.000004")
Weight kg 3100 (6,280 lbs) 5800 (12,320 lbs) 6300 (13,860 lbs) 6700 (14,740 lbs)
Item No. 3100058 3100059 3100060 3100061
Specifications 500/600 500/1000 500/1500 500/2000
19" x 24" 19" x 39" 19" x 59" 19" x 78"
Swing over table mm Ø500 (19.6")
Max grinding diameter mm Ø480 (19")
Infeed angle ° 60°
Distance between centers mm 600 (23.6") 1000 (39") 1500 (59") 2000 (78")
Max. load between centers kg 150 (330 lbs) 250 (550 lbs)
GRINDING WHEEL
Diameter x Width x Bore mm Ø510x50xØ152.4 (20x2x6")
Motor rated power kW 7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speed rpm 1250 [opt.1650]
WORKHEAD
Swiveling angle ° 90°
Spindle speed (infinite variable) rpm 10 ~ 600
Motor rated power kW 0.75 (1 Hp)
Center taper MT 4 [opt. MT 5]
TAILSTOCK
Quill travel mm 25 (1") [opt. 50/75 (2/3")]
Center taper MT 4 [opt. MT 5]
X-Axis Travel mm 270 (10.6")
Max rapid feed rate m/min 6 (236"/min)
Min. increment mm 0.0001 (0.000004")
Z-Axis Travel mm 850 (33.4") 1250 (49") 1850 (73") 2450 (96")
Swiveling angle ° ±9° ±7° ±5°
Max. rapid feed rate m/min 10 (394"/min)
Min. increment mm 0.0001 (0.000004")
Weight kg 3100 (6,280 lbs) 5800 (12,320 lbs) 6300 (13,860 lbs) 6700 (14,740 lbs)
Item No. 3100062 3100063 3100064 3100065
Specifications 380/600 380/1000 380/1500 380/2000
15" x 24" 15" x 39" 15" x 59" 15" x 78"
Swing over table mm Ø380 (15")
Max grinding diameter mm Ø380 (15")
Distance between centers mm 600 (23.6") 1000 (39") 1500 (59") 2000 (78")
Max. load between centers kg 150 (330 lbs) 250 (550 lbs)
GRINDING WHEEL
Diameter x Width x Bore mm Ø510x50-100xØ152.4 (20x2-4x6")
Motor rated power kW 7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speed rpm 1250 [opt.1650]
WORKHEAD
Swiveling angle ° 90°
Spindle speed (infinite variable) rpm 10 ~ 600
Motor rated power kW 1.5 (2 Hp)
Center taper MT 4 [opt. MT 5]
TAILSTOCK
Quill travel mm 25 (1") [opt. 50/75 (2/3")]
Center taper MT 4 [opt. MT 5]
X-Axis Travel mm 270 (10.6")
Max rapid feed rate m/min 6 (236"/min)
Min. increment mm 0.0001 (0.000004")
Z-Axis Travel mm 850 (33.4") 1250 (49") 1850 (73") 2450 (96")
Swiveling angle ° ±9° ±7° ±5°
Max. rapid feed rate m/min 10 (394"/min)
Min. increment mm 0.0001 (0.000004")
Weight kg 5600 (12,320 lbs) 6000 (13,200 lbs) 6400 (14,080 lbs) 6800 (14,960 lbs)
Item No. 3100045 3100046 3100047 3100048
Specifications 500/600 500/1000 500/1500 500/2000
19" x 24" 19" x 39" 19" x 59" 19" x 78"
Swing over table mm Ø500 (19.6")
Max grinding diameter mm Ø480 (19")
Distance between centers mm 600 (23.6") 1000 (39") 1500 (59") 2000 (78")
Max. load between centers kg 150 (330 lbs) 250 (550 lbs)
GRINDING WHEEL
Diameter x Width x Bore mm Ø510x50-100xØ152.4 (20x2-4x6")
Motor rated power kW 7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speed rpm 1250 [opt.1650]
WORKHEAD
Swiveling angle ° 90°
Spindle speed (infinite variable) rpm 10 ~ 600
Motor rated power kW 1.5 (2 Hp)
Center taper MT 4 [opt. MT 5]
TAILSTOCK
Quill travel mm 25 (1") [opt. 50/75 (2/3")]
Center taper MT 4 [opt. MT 5]
X-Axis Travel mm 270 (10.6")
Max rapid feed rate m/min 6 (236"/min)
Min. increment mm 0.0001 (0.000004")
Z-Axis Travel mm 850 (33.4") 1250 (49") 1850 (73") 2450 (96")
Swiveling angle ° ±9° ±7° ±5°
Max. rapid feed rate m/min 10 (394"/min)
Min. increment mm 0.0001 (0.000004")
Weight kg 5800 (12,320 lbs) 6100 (13,420 lbs) 6500 (14,300 lbs) 6900 (15,180 lbs)
Item No. 3100049 3100050 3100051 3100052

Get A Quote

Videos

Testimonials

Click below for a PDF spec sheet

R-Grind HD 40300

R-Grind HD 403000

“They are 10 years old, used frequently, and still work fine.”

Glen
Philadelphia Gear TX
R-Grind HD 403000

Get A Quote

Get pricing and availability

Call us Monday-Friday 8:30am-5pm EST at 1-610-441-7317 or request info here:

*The above specifications are subject to change without prior notice. No liability for printing mistakes. Machine may be shown with optional equipment.

KAAST Machine Tools, Inc.

3 Merion Terrace

Aldan, PA 19018 USA

(610) 441-7317