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CNC Vertical Grinding Machine

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CNC Vertical Grinding Machine

Features
1. Standard configuration of the CNC vertical grinding machine is a CNC FANUC system and SIEMENS-810D/840D systems. Other systems are optional.
2. Every vertical grinding machine has an indeterminate beam. It uses one single column structure if the rotary table's size is not bigger than 1.6M, or a gantry structure with double vertical columns if the rotary table's size is bigger than1.6M.
3. The CNC vertical grinding machine uses two grinding heads with different layouts: two vertical grinding heads, one vertical grinding head and the other horizontal end face grinding head or one vertical grinding head and the other generating grinding head. Both the vertical grinding head and the horizontal grinding head can realize stepless speed with high precision.
4. The guide way of the CNC vertical grinding machine uses an imported linear roller guide with high anti vibration and the ball screw has the pretension structure. Both the guide way and ball screw have a central lubrication system.
5. The grinding head of the CNC vertical grinding machine uses mechanical structure and the spindle bearing is pre pressing angular contact bearing.
6. The upper and lower reciprocating of the grinding frame uses hydraulic balance. The grinding head can rotate ±90° with worm and the worm wheel structure driven by servo motor, and the grinding head is with the hydraulic lock state, high precision angle encoder and high precision indexing.
7. The rotary table with a hydrostatic spindle structure is supported by a closed hydrostatic guide way and the rotary table is driven by a motor with the decelerating mechanism and a synchronous belt.
8. The rotary table of the CNC vertical grinding machine is configured with T shape groove disc, and the electric permanent magnet sucker or other special fixture is optional.
9. The machine uses the closed loop control of the high precision linear grid ruler.
10. The CNC vertical grinding machine uses single dot linear G/W dresser, and the arc G/W dresser or diamond roller dresser is optional.
11. The machine can be configured with G/W changing assistant fixture and G/W static balance system.

Application
The CNC vertical grinding machine is used in internal grinding, cylindrical grinding, end face grinding, conical end face grinding and inner or outer track grinding for big ring shaped work pieces, extra big bearings and fan bearings. Different required surface grinding can be finished in one time of clamping to make sure of the grinded surfaces' position precision. The CNC vertical grinding machine is especially suitable for mass production of large gearbox casings, wind turbine gearbox bearing rings and other big bearing rings.

Technical Specifications

Item(mm) RFLM80 RFLM100 RFLM125 RFLM160 RFLM200
Table dimension(mm) Ф800 Ф1000 Ф1250 Ф1600 Ф2000
Max rotary dimension(mm) Ф1000 Ф1300 Ф1500 Ф1800 Ф2250
Pore diameter(mm) Ф200~800 Ф200~1000 Ф200~1200 Ф250~1600 Ф400~2000
Max grinding OD(mm) Ф1000 Ф1200 Ф1250 Ф1800 Ф2200
Max grinding depth(mm) 500 650 650 650 800
Max work piece weight(kg) 1500 2000 3500 10000 12000
Table rotation speed (r/min) 10-120 5-100 3-75 2-60 1.5-55
Max table torque(Nm) 3000 6800 7200 8000 10000
Grinding head Single grinding head/double grinding heads
Standard G/W dimension(mm) Ф300 Ф350 Ф350 Ф350 Ф400
G/W driving power(KW) 7.5/11 7.5/11 11/15 15/18.5 18.5/22
Grinding head RPM(r/min) 1000-3600 1000-3600 1000-3600 1000-3600 1000-3600
Grinding frame swing angle ±90° ±90° ±90° ±90° ±90°
Upper lower travel of left grinding frame 500 650 650 650 1000
Left right travel of the left slide(mm) 1000 1200 1300 1500 2050
Upper lower travel of the right grinding head(mm) 500 630 630 630 1000
Left right travel of the right slide(mm) 1000 1200 1300 1500 2050
Fastest move speed (m/min) 10 10 10 10 10
Resolution(mm) 0.001 0.001 0.001 0.001 0.001
Main motor power(KW) 22/26 30/37 30/37 30/37 37/45
Weight(kg) 15000 20000 25000 35000 40000
Item(mm) RFLM250 RFLM300 RFLM400 RFLM500 RFLM630
Table dimension(mm) Ф2500 Ф3000 Ф4000 Ф5000 Ф6300
Max rotary dimension(mm) Ф2850 Ф3400 Ф4500 Ф5500 Ф68000
Pore diameter(mm) Ф500~2500 Ф500~3000 Ф500~4000 Ф500~5000 Ф500~6300
Max grinding OD(mm) Ф2750 Ф3300 Ф4250 Ф5250 Ф6700
Max grinding depth(mm) 800 1000 1200 1350 1500
Max work piece weight(kg) 15000 15000 22000 25000 28000
Table rotation speed (r/min) 1-50 0.8-40 0.4-20 0.2-15 0.1-12
Max table torque(Nm) 10000 1000 12000 15000 16000
Grinding head Single grinding head/double grinding heads
Standard G/W dimension(mm) Ф400 Ф400 Ф500 Ф500 Ф500
G/W driving power(KW) 22/26 22/26 30/37 45/55 45/55
Grinding head RPM(r/min) 1000-3600 1000-3600 1000-3600 1000-3600 1000-3600
Grinding frame swing angle ±90° ±90° ±90° ±90° ±90°
Upper lower travel of left grinding frame 1000 1400 1600 1600 2000
Left right travel of the left slide(mm) 2300 2650 3050 3550 4100
Upper lower travel of the right grinding head(mm) 1000 1400 1400 1600 2000
Left right travel of the right slide(mm) 2300 2650 3050 3550 4100
Fastest move speed (m/min) 10 10 10 10 10
Resolution(mm) 0.001 0.001 0.001 0.001 0.001
Main motor power(KW) 37/45 45/55 45/55 45/55 45/55
Weight(kg) 50000 65000 75000 90000 100000
Other Products

RIFA is a China-based CNC vertical grinding machine manufacturer and supplier. We offer CNC vertical grinding machine, universal joint spider grinder, hub bearing grinding line and so on. Our high quality products are offered at competitive prices. We can complete the full chain of manufacturing vertical lathe with pallet changers, CNC gantry machining center, etc. right here in China. Our lower manufacturing cost saves your purchasing cost. More details on each of our products are shown on the description page.

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