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Valve R Combined Grinding Machine is special purpose machine and is used for grinding out cycle, rough grinding seat face and R of engine valve.
Valve R Multi Purpose Grinding Machine is special purpose machine and used for grinding out cycle, rough griding seat face, R of engine valve. Ranging from stem diameter: 4.5 mm to 13 mm, Head diameter: 17 mm to 60 mm, overall length: 70 mm to 220 mm. Our equipment is continually upgraded with latest technologies in processing engine valve. the machine can be single production and can be connection production.
 Mechanical Spindle Spindle speed: 6000 rpm; Adopt German FAG precision bearing; High precision; Easy to maintenance and changeover. |
 Headstock spindle Spindle speed: 300-3000 rpm; Adopt German FAG precision bearing; Match single cone multi-contact precision spring collet. |
 CBN Wheel High efficiency; Long life span; Electroplate treatment; CBN Profiled wheel. The wheel can rough grinding seat face, head diameter, and head chamfer; Can rough grinding undercut of engine valve; Can rough grinding head face of engine valve. |
 Loading & unloading system The rails can meet different size valves and easy to adjust; The rest actions should carry out with grinding except for the loading & unloading system; Loading & unloading system has proper protection measures and doesn't affect the operator to change the fixture, wheel, and other toolings; If the loading & unloading system is out of order, the machine will ring and stop the cycle |
 Feeding way & Positioning method Composed of ball screw and linear guide; Easy to maintenance and replacement. Stem tip position, OD assist. |
| Before Processing | ||
| Processing Range | Head diameter: 20-50 mm, Stem diameter: 5-10 mm, Length: 70-150 mm | |
| Material | 21-4N,4Cr10Si2Mo, Imported: SUH:3,SUH:35, etc. Hardness: 25-45 HRc | |
| Run out of stem: 0.01 mm, Run out of head top: 0.1 mm | ||
| Seat Angle | 45-60 degree | |
| Grinding allowance | within 4mm | |
| After Processing | ||
| Processing accuracy | out cycle tolerance | Within ±0.03 mm， Sampling and using speacial inspection tool to measure 50 pieces |
| Thickness of seat | within ±0.03 mm, Sampling and using special inspection tool to measure 50 pieces | |
| Roughness | WIthin Ra 1.6 | |
| Slide Stroke | Max. Stroke X-axis | 250 |
| Max. Stroke Y-axis | 150 | |
| Cycle time | Within 15s/piece | |
| Air pressure | 0.4-0.8 Mpa | |
| Water discharge | 20L/Min | |
| Total Power | 20 KW | |
| Current | 380V/50Hz | |
| Machine Size | 2100*1900*2000 mm | |
| Machine Weight | 3000 KG | |
Valve Multi Purpose Grinding Machine is special purpose machine for engine valve. it is used to process engine valves (inlet valves and exhasut valves) in cars, motorcycles, trucks, and other engine valves.
Tianzhijiao specialied in engine valve grinding machine manufacturing and exporting, welcome to contact us for more machine details and quotation.
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