Lapping Machines
Kemet Flat Lapping and Polishing Systems offer the most efficient and reliable method of producing precision flat polished surfaces. Our flat lapping and polishing machines are at the forefront of today’s advanced lapping technology, especially when used with Kemet Diamond products. Kemet lapping machine are available in fixed and variable speed either open face or pneumatic lift and are built strictly to the latest EEC standards.
Flat Lapping and Polishing Machines are available in a range of sizes from 200mm diameter to 3 metres diameter. As a general guide, the smaller bench mounted Machines are for lapping smaller components and light duty applications, whereas the larger Machines are more suited to lapping the larger components, with those in the middle range being commonly used for production lapping where large numbers of pieces are involved.
Flat Lapping Machines are usually used in conjunction with conditioning or control rings. These rings run on the surface of the Lapping or Polishing Plate which contain and give drive to the pieces being lapped. By having chamfers on their outer edges, the rings help to impregnate the Lapping Plate with the diamond abrasive. The rings can also be used to help control the lapping plate flatness. The standard number of conditioning rings used is three but four rings are common on some larger Machines. For special applications, however, special ring sizes can be used.
Lapping Machine Capacity Calculator
| Model | 15 | 20 | 24 | 36 | 48 | 56 | 72 | 84 | 120 | |
|---|---|---|---|---|---|---|---|---|---|---|
| Lapping Plate outside Diameter | mm | 381 | 508 | 610 | 914 | 1218 | 1422 | 1828 | 2132 | 3048 |
| in | 15 | 20 | 24 | 36 | 48 | 56 | 72 | 84 | 120 | |
| Lapping Plate Speed | 70rpm | 70rpm | 58rpm | 58rpm | 48rpm | 48rpm | 30rpm | 20rpm | 4-24rpm | |
| No. of Conditioning Rings | 3 | 3 | 3 or 4 | 3 or 4 | 3 or 4 | 3 or 4 | 4 | 4 | 4 | |
| Conditioning Ring inside Diameter | mm | 140 | 191 | 248 209 | 368 322 | 505 432 | 578 530 | 692 | 813 | 1016 |
| in | 5.5 | 7.5 | 9.75 8.25 | 14.5 12.7 | 19.9 17.0 | 22.7 20.9 | 27.25 | 32 | 40 | |
| Maximum load per Conditioning ring | 39Kg | 59Kg | 250Kg | 300Kg | 400Kg | 375Kg | 1000Kg | 1000Kg | ||
| (4 ring – Please enquire for more details) | ||||||||||
| (If only one conditioning ring has this max weight, this creates an offset loading. Reduce the maximum load by 50%) | ||||||||||
| Height of Open Face Machine | mm | 670 | 700 | 940 | 940 | 991 | 991 | 914 | 914 | 1750 |
| in | 26.5 | 27.6 | 36 | 37 | 39 | 39 | 36 | 36 | 69 | |
| Height of Pneumatic Lift Machine | mm | N/A | 965 | 1630 | 2000 | 2350 | 2768 | 2820 | 2820 | 3000 |
| in | N/A | 38 | 64.2 | 78.75 | 92.5 | 109 | 111 | 111 | 118 | |
| Working Height | mm | 310 | 385 | 940 | 940 | 1000 | 1000 | 912 | 912 | 1000 |
| in | 12.2 | 15.2 | 37 | 37 | 39.4 | 39.4 | 36 | 36 | 39 | |
| Width of Machine | mm | 760 | 883 | 1220 | 1422 | 1600 | 2057 | 2120 | 2401 | |
| in | 30 | 34.75 | 48 | 56 | 63 | 81 | 83.5 | 102.4 | ||
| Depth of Machine | mm | 620 | 780 | 1350 | 1620 | 2000 | 2184 | 2667 | 2970 | 5000 |
| in | 24 | 30.7 | 53.2 | 63.7 | 78.7 | 86 | 105 | 117 | 197 | |
| Standard Electrical Supply | 220v-1Ph-50Hz or 380v or 415v 3Ph-50Hz | 220v-1Ph-50Hz or 380v or 415v 3Ph-50Hz | 220v or 380v or 415v 3Ph-50Hz | 220v or 380v or 415v 3Ph-50Hz | 220v or 380v or 415v 3Ph-50Hz | 220v or 380v or 415v 3Ph-50Hz | 220v or 380v or 415v 3Ph-50Hz | 220v or 380v or 415v 3Ph-50Hz | 220v or 380v or 415v 3Ph-50Hz | |
| Main Drive Motor | 0.37kW | 0.75kW | 1.5kW | 4.1kW | 7.5kW | 11kW | 15kW | 22kW | 22kW | |
| Abrasive pump motor | 0.18kW | 0.18kW | 0.18kW | 0.18kW | 0.18kW | 0.18kW | 0.18kW | 0.18kW | Up to 1kW | |
| Net Weight Open Face | 116kg | 245kg | 555kg | 1000kg | 2845kg | 3700kg | 5359kg | 8400kg | 29,000kg | |
| Gross Weight Open Face | 156kg | 343kg | 730kg | 1220kg | 3800kg | 4000kg | 6650kg | 9979kg | 34,000kg | |
| Net Weight Pneumatic | N/A | 240kg | 700kg | 1530kg | 3145kg | 5273kg | 7930kg | 10,439kg | 32,000kg | |
| Gross Weight Pneumatic | N/A | 385kg | 997kg | 1880kg | 3570kg | 5573kg | 9876kg | 11,923kg | 37,000kg | |
Note: Metric / Imperial conversions are approximate. All dimensions are for machines fitted with Kemet Electronic spray systems. In the interests of development, we reserve the right to change the specifications without notice.
Which Machine for your Process?
Kemet Range
Diamond and conventional lapping processes on Kemet composite or cast iron lap plates. Wide range of surface finishes and stock removal rates on most materials. Sub-micron flatness.
KemCol Range
CMP (Chemical Mechanical Polishing) and Cerium Oxide superfinishing. Mirror polishing of materials that are difficult to polish using diamond or conventional abrasives.
DiaCol range
Combined Kemet / KemCol machines able to utilise any lapping and polishing processes on a single machine.
Samples are evaluated free-of-charge & reports are issued covering all aspects of the process & the likely consumable costs involved.
We provide a complete technical support programme as part of our package. Our team of technical experts are always on hand to offer advice and assistance.
With over 80 years of expertise, our experienced in-house technical support team can help you with your processes.
Custom Built Lapping Machines
A variety of custom built Precision Diamond Flat Lapping and Polishing machines are available to meet your needs. Contact the sales desk for more information on 01622 755 287.
Benefits of Kemet's Advanced Lapping Technology
Kemet offers a comprehensive range of standard lapping and polishing systems for use across all industrial sectors. Special purpose machines can also be developed for specific applications.
- Significant reduction in lapping costs
- Cleaner environment conditions
- Reduced inspection requirements
- One operation surface finish
- Semi skilled operation
- Faster material removal
- Faster polishing process
- Pre set parameters
- Reduced rejections
- Optimum geometry and surface finish
- Easier product cleaning
- Better utilisation of machine time
