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
Specifications250/500320/600320/1000320/1500320/2000320/2500320/3000
9" x 20"12" x 24"12” x 39"12” x 59"12” x 78"12” x 98"12” x 118"
Swing over tablemmØ250 (Ø9.8")Ø320 (Ø12.6")
Max grinding diametermmØ250(Ø9.8")Ø300 (Ø12")
Infeed angle°60°
Distance between centersmm500 (19.6")600 (23.6")1000 (39")1500 (59")2000 (78")2500 (98")3000 (118")
Max. load between centerskg80 (175 lbs)150 (330 lbs)250 (550 lbs)
GRINDING WHEEL
Diameter x Width x BoremmØ455x50xØ127 (18x2x5")Ø510x50-100xØ152.4 (20x2x6")
Motor rated powerkW3.75 (5 hp)7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speedrpm14001250 [opt.1650]
WORKHEAD
Swiveling angle°90°
Spindle speed (infinite variable)rpm10 ~ 600
Motor rated powerkW0.75 (1 Hp)
Center taperMT 3MT 4 [opt. MT 5]
TAILSTOCK
Quill travelmm25 (1")25 (1") [opt. 50/75 (2/3")]
Center taperMT 3MT 4 [opt. MT 5]
X-AxisTravelmm200 (7.8")270 (10.6")
Max rapid feed ratem/min6 (236"/min)
Min. incrementmm0.0001 (0.000004")
Z-AxisTravelmm750 (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 ratem/min8 (315"/min)10 (394"/min)
Min. incrementmm0.0001 (0.000004")
Weightkg3100 (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)
Specifications380/600380/1000380/1500380/2000380/2500380/3000
15" x 24"15" x 39"15" x 59"15" x 78"15" x 98"15" x 118"
Swing over tablemmØ380 (15")
Max grinding diametermmØ360 (14.1")
Infeed angle°60°
Distance between centersmm600 (23.6")1000 (39")1500 (59")2000 (78")2500 (98")3000 (118")
Max. load between centerskg150 (330 lbs)250 (550 lbs)
GRINDING WHEEL
Diameter x Width x BoremmØ510x50-100xØ152.4 (20x2x6")
Motor rated powerkW7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speedrpm1250 [opt.1650]
WORKHEAD
Swiveling angle°90°
Spindle speed (infinite variable)rpm10 ~ 600
Motor rated powerkW0.75 (1 Hp)
Center taperMT 4 [opt. MT 5]
TAILSTOCK
Quill travelmm25 (1") [opt. 50/75 (2/3")]
Center taperMT 4 [opt. MT 5]
X-AxisTravelmm270 (10.6")
Max rapid feed ratem/min6 (236"/min)
Min. incrementmm0.0001 (0.000004")
Z-AxisTravelmm850 (33.4")1250 (49")1850 (73")2450 (96")3050 (120")3650 (144")
Swiveling angle°±9°±7°±5°±3°±2°
Max. rapid feed ratem/min10 (394"/min)
Min. incrementmm0.0001 (0.000004")
Weightkg3100 (6,280 lbs)5800 (12,320 lbs)6300 (13,860 lbs)6700 (14,740 lbs)7100 (15,620 lbs)7500 (16,500 lbs)
Specifications500/600500/1000500/1500500/2000500/2500500/3000
19" x 24"19" x 39"19" x 59"19" x 78"19" x 98"19" x 118"
Swing over tablemmØ500 (19.6")
Max grinding diametermmØ480 (19")
Infeed angle°60°
Distance between centersmm600 (23.6")1000 (39")1500 (59")2000 (78")2500 (98")3000 (118")
Max. load between centerskg150 (330 lbs)250 (550 lbs)
GRINDING WHEEL
Diameter x Width x BoremmØ510x50-100xØ152.4 (20x2x6")
Motor rated powerkW7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speedrpm1250 [opt.1650]
WORKHEAD
Swiveling angle°90°
Spindle speed (infinite variable)rpm10 ~ 600
Motor rated powerkW0.75 (1 Hp)
Center taperMT 4 [opt. MT 5]
TAILSTOCK
Quill travelmm25 (1") [opt. 50/75 (2/3")]
Center taperMT 4 [opt. MT 5]
X-AxisTravelmm270 (10.6")
Max rapid feed ratem/min6 (236"/min)
Min. incrementmm0.0001 (0.000004")
Z-AxisTravelmm850 (33.4")1250 (49")1850 (73")2450 (96")3050 (120")3650 (144")
Swiveling angle°±9°±7°±5°±3°±2°
Max. rapid feed ratem/min10 (394"/min)
Min. incrementmm0.0001 (0.000004")
Weightkg3100 (6,280 lbs)5800 (12,320 lbs)6300 (13,860 lbs)6700 (14,740 lbs)7100 (15,620 lbs)7500 (16,500 lbs)
Specifications250/500320/600320/1000320/1500320/2000
9" x 20"12" x 24"12” x 39"12” x 59"12” x 78"
Swing over tablemmØ250 (Ø9.8")Ø320 (Ø12.6")
Max grinding diametermmØ250(Ø9.8")Ø300 (Ø12")
Infeed angle°60°
Distance between centersmm500 (19.6")600 (23.6")1000 (39")1500 (59")2000 (78")
Max. load between centerskg80 (175 lbs)150 (330 lbs)250 (550 lbs)
GRINDING WHEEL
Diameter x Width x BoremmØ510x50xØ127 (20x2x5")Ø510x50xØ152.4 (20x2x6")
Motor rated powerkW3.75 (5 hp)7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speedrpm14001250 [opt.1650]
WORKHEAD
Swiveling angle°90°
Spindle speed (infinite variable)rpm10 ~ 600
Motor rated powerkW0.75 (1 Hp)1.5 (2 Hp)
Center taperMT 3MT 4 [opt. MT 5]
TAILSTOCK
Quill travelmm25 (1")25 (1") [opt. 50/75 (2/3")]
Center taperMT 3MT 4 [opt. MT 5]
X-AxisTravelmm200 (7.8")270 (10.6")
Max rapid feed ratem/min6 (236"/min)
Min. incrementmm0.0001 (0.000004")
Z-AxisTravelmm750 (29.5")850 (33.4")1250 (49")1850 (73")2450 (96")
Swiveling angle°±7°±9°±7°±5°
Max. rapid feed ratem/min8 (315"/min)10 (394"/min)
Min. incrementmm0.0001 (0.000004")
Weightkg3100 (6,280 lbs)5600 (12,320 lbs)5800 (12,320 lbs)6300 (13,860 lbs)6700 (14,740 lbs)
Specifications380/600380/1000380/1500380/2000
15" x 24"15" x 39"15" x 59"15" x 78"
Swing over tablemmØ380 (15")
Max grinding diametermmØ360 (14.1")
Infeed angle°60°
Distance between centersmm600 (23.6")1000 (39")1500 (59")2000 (78")
Max. load between centerskg150 (330 lbs)250 (550 lbs)
GRINDING WHEEL
Diameter x Width x BoremmØ510x50xØ152.4 (20x2x6")
Motor rated powerkW7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speedrpm1250 [opt.1650]
WORKHEAD
Swiveling angle°90°
Spindle speed (infinite variable)rpm10 ~ 600
Motor rated powerkW0.75 (1 Hp)
Center taperMT 4 [opt. MT 5]
TAILSTOCK
Quill travelmm25 (1") [opt. 50/75 (2/3")]
Center taperMT 4 [opt. MT 5]
X-AxisTravelmm270 (10.6")
Max rapid feed ratem/min6 (236"/min)
Min. incrementmm0.0001 (0.000004")
Z-AxisTravelmm850 (33.4")1250 (49")1850 (73")2450 (96")
Swiveling angle°±9°±7°±5°
Max. rapid feed ratem/min10 (394"/min)
Min. incrementmm0.0001 (0.000004")
Weightkg3100 (6,280 lbs)5800 (12,320 lbs)6300 (13,860 lbs)6700 (14,740 lbs)
Specifications500/600500/1000500/1500500/2000
19" x 24"19" x 39"19" x 59"19" x 78"
Swing over tablemmØ500 (19.6")
Max grinding diametermmØ480 (19")
Infeed angle°60°
Distance between centersmm600 (23.6")1000 (39")1500 (59")2000 (78")
Max. load between centerskg150 (330 lbs)250 (550 lbs)
GRINDING WHEEL
Diameter x Width x BoremmØ510x50xØ152.4 (20x2x6")
Motor rated powerkW7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speedrpm1250 [opt.1650]
WORKHEAD
Swiveling angle°90°
Spindle speed (infinite variable)rpm10 ~ 600
Motor rated powerkW0.75 (1 Hp)
Center taperMT 4 [opt. MT 5]
TAILSTOCK
Quill travelmm25 (1") [opt. 50/75 (2/3")]
Center taperMT 4 [opt. MT 5]
X-AxisTravelmm270 (10.6")
Max rapid feed ratem/min6 (236"/min)
Min. incrementmm0.0001 (0.000004")
Z-AxisTravelmm850 (33.4")1250 (49")1850 (73")2450 (96")
Swiveling angle°±9°±7°±5°
Max. rapid feed ratem/min10 (394"/min)
Min. incrementmm0.0001 (0.000004")
Weightkg3100 (6,280 lbs)5800 (12,320 lbs)6300 (13,860 lbs)6700 (14,740 lbs)
Specifications380/600380/1000380/1500380/2000
15" x 24"15" x 39"15" x 59"15" x 78"
Swing over tablemmØ380 (15")
Max grinding diametermmØ380 (15")
Distance between centersmm600 (23.6")1000 (39")1500 (59")2000 (78")
Max. load between centerskg150 (330 lbs)250 (550 lbs)
GRINDING WHEEL
Diameter x Width x BoremmØ510x50-100xØ152.4 (20x2-4x6")
Motor rated powerkW7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speedrpm1250 [opt.1650]
WORKHEAD
Swiveling angle°90°
Spindle speed (infinite variable)rpm10 ~ 600
Motor rated powerkW1.5 (2 Hp)
Center taperMT 4 [opt. MT 5]
TAILSTOCK
Quill travelmm25 (1") [opt. 50/75 (2/3")]
Center taperMT 4 [opt. MT 5]
X-AxisTravelmm270 (10.6")
Max rapid feed ratem/min6 (236"/min)
Min. incrementmm0.0001 (0.000004")
Z-AxisTravelmm850 (33.4")1250 (49")1850 (73")2450 (96")
Swiveling angle°±9°±7°±5°
Max. rapid feed ratem/min10 (394"/min)
Min. incrementmm0.0001 (0.000004")
Weightkg5600 (12,320 lbs)6000 (13,200 lbs)6400 (14,080 lbs)6800 (14,960 lbs)
Specifications500/600500/1000500/1500500/2000
19" x 24"19" x 39"19" x 59"19" x 78"
Swing over tablemmØ500 (19.6")
Max grinding diametermmØ480 (19")
Distance between centersmm600 (23.6")1000 (39")1500 (59")2000 (78")
Max. load between centerskg150 (330 lbs)250 (550 lbs)
GRINDING WHEEL
Diameter x Width x BoremmØ510x50-100xØ152.4 (20x2-4x6")
Motor rated powerkW7.5 (10 Hp) [opt. 11 (15Hp)]
Wheel speedrpm1250 [opt.1650]
WORKHEAD
Swiveling angle°90°
Spindle speed (infinite variable)rpm10 ~ 600
Motor rated powerkW1.5 (2 Hp)
Center taperMT 4 [opt. MT 5]
TAILSTOCK
Quill travelmm25 (1") [opt. 50/75 (2/3")]
Center taperMT 4 [opt. MT 5]
X-AxisTravelmm270 (10.6")
Max rapid feed ratem/min6 (236"/min)
Min. incrementmm0.0001 (0.000004")
Z-AxisTravelmm850 (33.4")1250 (49")1850 (73")2450 (96")
Swiveling angle°±9°±7°±5°
Max. rapid feed ratem/min10 (394"/min)
Min. incrementmm0.0001 (0.000004")
Weightkg5800 (12,320 lbs)6100 (13,420 lbs)6500 (14,300 lbs)6900 (15,180 lbs)

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.

Products
Inventory
About Us
Trade Shows

3 Merion Terrace

Aldan, PA 19018 USA

(610) 441-7317

Get A Quote
Contact Us
Newsletter Sign Up
Blog