Double Sided Lapping Machine
Thes Dual-Lap machines are based upon a two-way & three way planetary concept designed to yield very precise and repeatable results at an economical price. Excellent results have been obtained in the processing of a wide range of materials and components including glass, ceramics, crystals and ferrous materials. Only the Inner and Outer Gears rotate allowing the carriers to move around the surface of the plates, whilst the top and bottom plate stay stationary. The larger models use a 3- way system, where the top plate, bottom plate and sun gear rotate.
The Kemet Twin Lap M machine is a small but versatile bench mounted machine ideally suited for small workshops and laboratories for double sided lapping (Twin Lap L is a floor standing machine). It comes fully equipped and ready to use and is suitable for lapping components up to 114mm diameter and up to 30mm thick. In certain circumstances larger components can be accommodated.
The machine is belt driven and built on a Aluminium extrusion base. Machine feet eliminate vibration transfer to and from the floor. This design gives the operator a shorter reach to the plate and easy access underneath for maintenance. The main lap plate can rotate both directions, and the work holder will automatically oscillate.
The machine will operate with a free abrasive compound such as silicon carbide, alumina or boron carbide, suspended in a oil or water based vehicle or a Diamond Compound. The compound is fed onto the lap plate from a free-standing system via a peristaltic pump.
As with all double sided lapping machines, we recommend that the lap plates are re-conditioned using conditioning gears on a regular basis. The machine can also be fitted with diamond dispensing equipment and special complementary lap plates. Automatic thickness control is also an option.
The machines come fully equipped and ready to run. The controls are housed in a single steel console attached to the base frame at a convenient working height. In all cases the lapping operation is controlled by a multi range adjustable timer or optional DTI mode.
TwinLap M for components <51 mm dia x 20mm thick
TwinLap L for components <114 mm dia x 30mm thick
TwinLap XL for components <170 mm dia x 40mm thick
TwinLap L
TwinLap XL
| Technical Details | TwinLap M | TwinLap L | TwinLap XL |
|---|---|---|---|
| Dimensions L × W (mm) | 770 × 800 | 1000 × 800 | 1000 × 1130 |
| Capacity | Ø51mm OD max component size, 20mm thick max. Thickness +/- 0.005mm. Flatness <0.0005mm | Ø114mm OD max component size, 30mm thick max. Thickness +/- 0.005mm. Flatness <0.0005mm | Ø170mm OD max component size, 40mm thick max. Thickness +/- 0.005mm. Flatness <0.0005mm |
| Maximum plate force | 5kg | 20kg | 60kg |
| Outer ring gear speed | 0 - 111 rpm 60W DC drive | 0 - 20 rpm 300W DC drive | 0 - 30 rpm 300W DC drive |
| Inner sun gear speed | 0 - 125 rpm 60W DC drive | 0 - 40 rpm 300W DC drive | 0 - 50 rpm 300W DC drive |
| Aprox. Weight (kg) | 90 | 300 | 650 |
| Standard Tooling | 2 Cast iron lap plates Ø175mm, One set cast iron conditioning gears, One set top plate weights, One set work carriers | 2 Cast iron lap plates Ø370mm, One set cast iron conditioning gears, One set top plate weights, One set work carriers | |
| Optional Tooling |
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| Optional Features |
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| Electrical supply | 240V-single phase-50Hz or 110V-single phase-60Hz | 480V-3 Phase-50Hz or 380V-single phase-60Hz | |
| Product code | 359314 | ||
Dual Face Lapping & Polishing Machines
The TwinLap HD line of dual face lapping machines feature 3 and 4-way, planetary models with sophisticated PLC/HMI control systems. These machines are capable of executing complex lapping routines while producing precise and repeatable results. These units, available with carrier diameters of 140 up to 345mm, can lap a wide range of materials to very tight specifications. Applications requiring conventional abrasive, diamond superabrasive, and fixed abrasive processes are all easily accommodated through robust construction and use of high quality machine components.
A programmable controller governs machine operation. Custom software prompts the operator for specific operating parameters and stores a number of routines for recall as needed. Through a load cell, the controller continually monitors and adjusts the top plate weight to maintain constant pressure on the parts. Automatic digital thickness control is obtained through the use of an extremely accurate, centrally-located electronic probe. Each machine is built on a heavy duty, rigid box beam frame. The top plate assembly is supported from a 2 or 4-post bridge for stability and durability. The unique combination of pneumatic controls, stiff frame design, and load control algorithms produce the most accurate and repeatable thickness results in the industry.
Custom lapping plates are available upon request, as are special electrical services. Each machine is custom designed for the specific application, and comes complete with a set of four conditioning gears, a flatness gauge, and a starter kit of consumables. For high production applications, Kemet offers several options including water cooled machining plates, a pneumatically assisted ring gear mechanism for easy machine loading and unloading, and full automation packages for certain models.
| Technical Details | HD400 | HD700 | HD900 |
|---|---|---|---|
| Dimensions L × W (mm) | 61.0 / 1550 × 35.4 / 900 × 88.6 / 2250 | 69.9 / 1775 × 43.3 / 1100 × 108.2 / 2750 | 73.8 / 1875 × 51.2 / 1300 × 88.6 / 2250 |
| Plate-O.D. (mm) | 420 | 684 | 900 |
| Max. down force (kg) | 200 | 500 | 800 |
| Upper & lower wheel output (hp / kW / rpm) | 1.8 / 1.35 / 10 – 100 | 4.0 / 3.0 / 10 – 100 | 7.4 / 5.5 / 8 – 80 |
| Sun gear output [hp / kW / rpm) | 1.0 / 0.75 / 10 – 120 | 3.0 / 2.2 / 10 – 80 | 4.0 / 3.0 / 8 – 80 |
| # of carrier positions | 6 | 6 | 4 |
| Carrier pitch / dia. (mm) | 140 | 229 | 345 |
| Max. diameter of part (mm) | 125 | 205 | 340 |
| Max. thickness of part (mm) | 40 | 40 | 50 |
| Power supply (hp / kW) | 4 | 10 | 16 |
| Approx. Weight (kg) | 1300 | 1780 | 2180 |
| Electrical supply | 380 / 480 V, 3 Phase | 50 / 60 Hz (Non-standard voltage available) | ||
| Product code | |||
