High speed CNC cylindrical grinding machine
MMKS1312-350 High Speed CNC Cylindrical Grinding Machine
A high speed grinder for small shaft work. At 80 m/s with a CBN wheel the same test grind falls from 20 s to 11.8 s and the grinding ratio rises from 16 to 45, so cycle time and wheel cost both come down.
Features
- High speed grinding: 80 m/s with a CBN wheel against 35 m/s conventional, which cuts a 20 s grind to 11.8 s.
- Grinding ratio rises from 16 to 45, so wheel life roughly doubles.
- 0.5 μm minimum X axis feed with 5000 mm/min rapid on both axes.
- Heavy-duty grinding headstock and air-cylinder tailstock as standard.
- Sized for small shaft work: 5-125 mm diameter, 350 mm long, 50 kg.
Specification
Published catalogue figures. Options and non-standard travels are quoted separately.
| Item | Unit | MMKS1312-350 |
|---|---|---|
| Capacity | ||
| Centre height | mm | 100 |
| Minimum external diameter ground | mm | 5 |
| Maximum external diameter ground | mm | 125 |
| Maximum length ground | mm | 350 |
| Centre distance | mm | 370 |
| Maximum loading weight | kg | 50 |
| Axes | ||
| X axis minimum feed | μm | 0.5 |
| X axis maximum feed speed | mm/min | 5000 |
| Z axis minimum feed | mm | 0.001 |
| Z axis maximum feed speed | mm/min | 5000 |
| Heads and wheel | ||
| Workhead | — | Heavy-duty grinding headstock as standard, MT4, 0-1000 r/min |
| Tailstock | — | Heavy-duty grinding tailstock, MT3, air cylinder driven, 30 mm travel |
| Wheel size | mm | Φ400×40×Φ203, corundum wheel |
| Wheel linear speed | m/s | ≤ 60 with a corundum wheel≤ 80 with a CBN wheel |
| System configuration | — | Domestic control as standard |
| Machining accuracy, standard test piece | ||
| Roundness | mm | 0.0015 |
| Cylindricity | mm | 0.0035 |
| Roughness | μm | Ra 0.2 |
| Application | Wheel speed | Grinding time | Grinding ratio, wheel wear rate |
|---|---|---|---|
| Conventional | 35 m/s | 20 s | 16 |
| High speed grinding | 80 m/s | 11.8 s | 45 |
Request A Quote
Get A Tailored Quote For The MMKS1312-350
Send The Largest Part Dimensions, The Material And The Tightest Tolerance. Our Engineers Confirm Whether The MMKS1312-350 Fits And Reply With A Detailed Quotation.
- +86 15162661999
- info@hankray.com
-
Room 1804-2, No. 33 Xinggui Street, Suzhou Industrial Park, Suzhou, Jiangsu, China
Model FAQs
Questions Engineers Ask About The MMKS1312-350
What shaft sizes does the MMKS1312-350 cover?
The MMKS1312-350 grinds diameters of 5 mm. Ground length runs to 350 mm. Quote finished diameter, length and workpiece weight together: the three place the machine, and weight is the one buyers forget.
Should my parts run between centres or in a chuck on the MMKS1312-350?
Between centres whenever several diameters must stay concentric to one axis — the centre holes are the datum, so inspect and lap them before precision work. Chucks or collets take over when there are no centres or a bore is the reference. On the MMKS1312-350, slender work past roughly ten diameters of unsupported length wants a steady rest carrying the span.
What grinding wheel does the MMKS1312-350 take?
Maximum wheel size on the MMKS1312-350 is Φ400×40×Φ203, corundum wheel mm. Wheel choice — abrasive, grade, structure — is matched to your material and finish target at quotation, and shoulder work needs the wheel width checked against the shoulder clearance on your drawing before the machine is sized.
MMKS1312-350 or HD-010 — which fits my work?
Both sit in the high speed CNC cylindrical grinding machine group, so the decision is capacity and duty, not kind: put your largest part dimensions, material and yearly quantity against each specification table and one of the two will run out of a figure first. Send the drawing and we will name which of the two fits — including the case where the smaller machine does the job.
What acceptance testing does the MMKS1312-350 go through?
Every MMKS1312-350 is laser-measured to ISO 230-2 over its travels, cuts a test piece that is measured rather than admired, and ships with a serial-numbered report carrying the measured values. If any line misses, the machine goes back into the shop until it passes — the report is a record, not a promise.
