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| MetroLap Product Offering |
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| Lapping Systems & Accessories |
MetroLap offers a complete range of lapping and polishing systems for industry. Special purpose machines
can be developed for specific applications.
MetroLap also offers a locally produced lapping machine, ranging from 15 to 36 inch, these machines come equipped with KEMET lapping plates to ensure your components have the ultimate surface finish. These machines will be able to lap components up to 360mm in diameter. |
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• 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 |
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| Diamond Abrasives |
| Kemet International is one of the world’s leading manufacturers of Diamond Abrasive Products used in research and industry. The wide range of standard formulations include liquids, pastes, suspensions, gels and sticks. Our laboratories have over 50 years experience and have developed special formulations for most lapping and polishing processes. These range from basic hand lapping operations to fully automatic double sided lapping systems. |
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Standard Kemet Liquid Diamond Products
Type K
An excellent, general purpose, low viscosity oil/water emulsion suitable for most applications.
Type W Series
Water soluble Liquid Diamond available in various viscosities. Recommended where lapping/polishing must be carried out in the absence of oil based materials.
Type O
Low viscosity oil soluble Liquid Diamond with enhanced cleaning properties. |
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Features
• Consistency of Performance
Manufactured under a Quality System registered by BSI Cert No QO5919 ISO 9001:2008
• Precise and Superfine Surface Finishes
Available in an extensive range of different micron sizes, containing only virgin Diamond Powder, graded to closer tolerances than the internationally recognised standards
• Efficiency and Economy
Uniform suspension of Diamond Powders in specially formulated chemical carriers, ensures that the diamond cuts and polishes with maximum effectiveness
• Easy Product Cleaning
Specially formulated Liquid Diamond Products enable parts to be cleaned easily.
Kemet Lubricating Fluids
Specially developed to ensure that Kemet Liquid Diamond cuts and polishes with maximum efficiency. Two Lubricating Fluids are recommended – Type K, a mineral oil based lubricant, and Type W, a water based lubricant. |
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| Flat Lapping Plates |
Kemet composite lapping plates are manufactured from a homogeneous mixture of synthetic resins, metal particles and other materials. The plates are ideal for today’s advanced lapping technology,
especially when used with Kemet Liquid Diamond.
Features
• Holds diamond particles firmly, ensuring both
efficient stock removal and repetitive
component surface finish.
• Ductile qualities cushion the diamond particles, preventing damage to the workpiece.
• Produced in varying hardness values so that even the softest material can, without impregnation, be safely lapped with diamond particles.
• Dissipates heat and prevents laminar flow
of lapped surfaces.
• Easy control for optimum flatness.
• Lapping/polishing plates available to fit all
makes of lapping machines with plate
diameters up to 3000mm.
• Supplied with a cast iron backing plate for
maximum stability.
Kemet Lapping Plates
Kemet Iron
The most commonly used plate. For general purpose
stock removal and lapping operations
Kemet XP
Gives improved flat polished surfaces on many
materials. Flat mirror surfaces can be produced
on many hard materials
Kemet Copper
Used to lap softer materials where fine lapping
and polishing are the primary requirements
Kemet Tin
One of the softest Kemet Plates used for mirror
polishing with fine grades of Kemet Liquid
Diamond. |
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Standard Kemet Lapping Plates
These plates are normally supplied mounted
on a cast iron backing plate for maximum
stability. They are recommended for general
and heavy-duty work where high precision
flatness and surface finish are required.
Kemet Lift Off Disc System
Kemet Lapping Plates are also available as
Lift Off Discs, for machines up to 610mm (24")
diameter. Discs are supplied mounted on an
aluminium backing plate, which locates on to an
aluminium drive plate by means of three pegs.
Lift Off Discs can be easily changed and are
recommended for light duty work where general
flatness and precision finish are required.
Grooving
Kemet Lapping Plates can be supplied grooved to
suit specific applications.
Kemet Annular Grooved Plates
These plates are designed for precision shoulder
lapping of a wide range of parts, such as fuel
pump gear faces and pressure relief valve caps.
Groove width and depth of plates need to be
specified when ordering. |
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| Flat Lapping Machines |
KEMET 15/20 MODELS
Bench Mounted Precision Diamond Flat
Lapping and Polishing Machines
Both Kemet 15 and 20 models are bench
mounted machines with rigid metal construction
and height adjustable work tables.
The machines incorporate digital process
timers and automatic Liquid Diamond
Dispensing Systems.
Options
• Suitable for lift off disc system
• Fixed speed
• Pneumatic lift on model 20"
Other versions
• COL-K Chemical polishing version
• Clipper Blade sharpening machine
Features
• Variable speed
• Suitable for bench mounting
• Produces optically flat surfaces with high
precision surface finish
• Reduces lapping costs – fully controllable Kemet
Electronic Dispensing System accurately meters
diamond abrasive onto the lapping plate
• Reduces waste – only small quantities of
diamond abrasive and non-toxic fluids are used
• Built in abrasive system for conditioning
Kemet plates
• Electrical System complies with EN 60 204
• Easy to adapt for special lapping applications
• Transportable |
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| Spherical Lapping and Polishing System |
Capabilities
To lap and polish pre-machined spherical balls and
cups to a mirror finish with roundness usually
better than 3 microns.
System Features
• 6 motors all with independent variable speed to
provide complete control.
• Lapping and Polishing pressures applied
pneumatically.
• Simple change from ball to cup polishing action.
• Average process time less than 5 mins.
• Low running costs.
• Manual and Jogging facility provided for setting up.
• Fully guarded with auto lifting door access.
• Dual process timers.
• Single button process start.
• Lighting provided.
• Smooth and silent running.
• Comes complete with initial tooling set
• CE marked.
• Full manual and training provided.
• Size: 1600mm (W) x 820mm (D) x 2500mm (H)
• Electrical: 230.1.50 supply
• Air: 3 Bar Max. |
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| Flatness Measuring Equipment |
For use with Kemet Flat Lapping and Polishing
Systems, Kemet Flatness Measuring Equipment
is designed to assist in the measurement and
maintenance of surface flatness.
Kemet Monochromatic Light
Produces clear flatness readings when used with
Kemet Optical Flats. The compact designed Light
is easily transportable and uses a sodium long-life
light source. Supplied with a flatness reading
interpretation chart.
Optical Flat Light Box Stands are available for use
with large Optical Flats. |
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Kemet Flatness Gauges
The Flatness Gauges are used to monitor lapping
plate flatness, which, in turn, gives an indication
of component flatness. Available for most machine
sizes, in metric calibration, the gauges are
supplied in a case with a master setting block.
Full instructions are provided.
Kemet Optical Flats
Produced from Quartz, Kemet Optical Flats
are available in single and double sided,
standard sizes from 25mm up to 300mm
diameter. They are supplied with Certificate
of Conformity together with full instructions.
National Physical Laboratory Certificates are
also available. Special optical flats are available
on request. Kemet offers an optical flat
reconditioning and calibration service. |
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| Hand Lapping Kits |
Kemet Portable Hand Lapping Kits
Leaking pumps, valves and seals cause many
problems, leading to wastage, poor performance,
unnecessary costs, even health hazards. Kemet
Portable Lapping Kits enable refurbishment to be
carried out on site, reducing expensive downtime.
Components manufactured from ceramics,
tungsten carbide, stellite, brass, steel, silicon
carbide, ni-resist etc, can be lapped and/or
polished by hand in minutes rather than hours.
The kits are also ideal for low volume production,
where it is not economical to purchase a lapping
or polishing machine. |
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| Kemet Polishing Pads |
Kemet Polishing Pads
Flat polished surfaces can only be produced on
many softer materials with the use of polishing
pads. These are available to suit most flat
lapping machines. Kemet offer the widest range of
self-adhesive and metallic backed polishing pads,
of which there are three general types:
• Synthetic Silk Pads
• Chemo Textile Pads
• Nap Cloths |
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| Consumables, Spares & Accessories |
Kemet Abrasive Products
KEMET supply the widest range of Abrasive Products, including Liquids, Pastes, Suspensions and
Powders. Aluminium Oxide and Silicon Carbide are available in all grit sizes.
Kemox
A range of suspension treated abrasives where the abrasive and carrier are pre-mixed in the
correct proportions, resulting in a cleaner and more efficient Lapping Process. Other abrasive types
are available. |
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Col-K
A liquid polish used on KEMET CHEM CLOTH to produce the ultimate in high
quality mirror polishes on polishing machines. A part abrasive part chemical
polishing action makes COL-K well suited to polishing difficult materials
such as Stellite and Cobalt Chrome.
Abrasive Pastes
Kemet manufacture a wide range of abrasive lapping pastes. Our range of Silicon Carbide and
Aluminium Oxide pastes have many applications but are particularly suited to the lapping of
mechanical seals and valve seats. The pastes are water soluble and safe to use |
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| Lapping Plates |
| We offer a part exchange service for all worn
Kemet Lapping Plates. Cast iron and soft metal
plates are available for most machines. |
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| Conditioning Rings |
| Conditioning Rings wear naturally as part of the
lapping process. Replacements are available to
fit most flat lapping machine models. |
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| Kemet can supply Kemet lapping plates for all lapping machine models including segmented plates for
48 inch machines and larger. Ceramic or Plastic faced rings are available for use on polishing cloths. |
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| Industrial Cleaning Systems |
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Industry and manufacturers with lapping processes increasingly require more efficient and environmental methods of cleaning precision parts. Kemet can supply ultrasonic cleaning systems from 3 to 3,000 litres for use with Aqueous ultrasonic detergents.
There is also a range of Rinse / Dryer / Dewatering / Filtration equipment to tailor a system to achieve the required cleaning standard. Fully 'automatic' systems are also available. In applications where only solvent will achieve the required performance, we have fully enclosed solvent systems available. |
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| MetroLap Sub Contract Lapping & Polishing |
If your components require optimum flatness to
perform to specification, if they are difficult to lap,
or you have a particularly tight deadline to meet,
MetroLap’s Sub Contract Service is the answer. We’re
renowned for our service, reliability and quality,
and we specialise in fast turnaround times.
Our expertise is wide and varied: it includes the
lapping and polishing of mechanical seals, valves,
compact disc mirror blocks, flat plastic mould
inserts, comparator stages, spacers, cutter discs,
and aircraft pump components.
Machine Details
Our machines are equipped with both standard and special
Details lapping plates to enable us to process most types of
components. We are able to lap and/or polish components
up to 530mm dia (approx 21”).
Capability
We can process most materials to a specific surface finish or
flatness. Shouldered components, ie those with a raised
centre or shaft, are also able to be lapped.
Quality
All work is returned with a Certificate of Conformity covering
the generated surface finish and flatness, relative to the
customer’s drawing or specification. |
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Service
Our reputation has been built on service, reliability and quality.
Fast turnaround times are our speciality. |
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| Materialographic Products |
Kemet Special Polishing Abrasives
Aluminium Oxide & Silicon Carbide
For smoothing operations.
Polishing Alumina
For use on most materials in polishing stages. |
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| Aluminium Oxide Powder |
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| Alumina Powder |
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| Silicon Carbide Powder |
| For lapping of Petrographic Material. Available in six grit sizes. |
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| Green Silicon Carbide Powder |
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| Miscellaneous Polishing Suspensions |
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| Kemet Diamond Products |
Diamond Products
Kemet Diamond Products are available in Standard grade, manufactured with Monocrystalline Diamond Powder, or in our
SUPERIOR Premier grade, manufactured with Polycrystalline Diamond Powder. For Kemet Standard and Premier Grades
only the highest quality virgin Diamond Powder is used, which must satisfy two important criteria - shaping and grading.
Diamond Compound
Water soluble diamond compound available in two types: CM and CP.
Supplied in 5g Applikators, 10g or 20g syringes.
Type CM
Standard grade high concentration containing
Monocrystalline Diamond Powder. |
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Type CP
Premier grade high concentration containing Polycrystalline Diamond Powder particular
recommended for polishing ceramics sintered
materials and composites.
10g Applicator Stick
Water soluble, stick diamond
compound manufactured with Monocrystalline Diamond Powder. |
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Diamond Suspension
Low viscosity, high concentration, water (W) or oil (O) soluble suspensions
available in two types: WM or OM Standard grade, containing
monocrystalline diamond powder and WP or OP Premier grade
containing polycrystalline diamond powder.
• Uniform suspension of diamond particles.
• No agitation required.
• Suitable for dispensing by Kemet Electronic Dispenser
or alternative systems.
Types OM and OP available in 400g bottles with trigger spray.
Types WM & WP available in 400g bottles with trigger spray. |
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Diamond Spray
Water soluble spray manufactured with monocrystalline
diamond powder.
Polycrystalline spray also available.
Supplied in 100g Pump-up Spray Dispenser |
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| Lubricating Fluid |
Type R OS2:
A low viscosity odourless oil-based fluid for use
where water is not permitted.
Type GW2:
A low viscosity water-based fluid specially developed for use
with Kemet Diamond Suspension, particularly when used
with Kemet Lapping Plates.
Type Blue:
Improves cutting and polishing performance.
Can be used on polishing cloths or Kemet plates. |
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| Kemet Polishing Cloths |
Kemet Chemo-textile Cloths
Manufactured to the highest standards with accurately
controlled uniform thickness. Self-adhesive, and available
in soft (PSU-S), medium (PSU-M), hard (PSU-H) and
extra hard (PAD-K) formats. Chem Cloth is also available
for Chemo-mechanical Polishing.
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Chemo-textile Cloths
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These soft, medium and hard chemo-textile cloths are for smoothing and polishing operations. Commonly used with Kemet Diamond Compound 14 micron and finer. |
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The ultra-hard chemo-textile cloth used
where fast cutting is needed. Used with
Kemet Diamond Compound 25 micron and
finer. Also available perforated. |
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Kemet Silk-Type Cloths
Kemet silk-type cloths have been developed for finishing
metal specimens and components.
The five types available are MSFL, MSF, MSR, MST and ULP.
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Silk Type Cloths
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Will polish metal flat, and to a mirror finish.
Best results are obtained when used with
Kemet Diamond Compound or Diamond
Suspension 3 micron and finer. Water
resistant adhesive (oil resistant available). |
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Similar to MSFL, but with a thicker, softer
adhesive backing and plastic barrier which is
resistant to most fluids. |
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An extra hard, rigid silk cloth for increased cutting action. |
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A heavy duty nylon pad for high stock removal. |
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Similar to MSFL with rigid
plastic backing. |
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| Toolroom & Precision Engineering |
A wide range of standard and special Diamond
Products formulated and manufactured in our quality
controlled laboratories. Each Kemet Diamond Product
is a special blend of Diamond Powder with a specific
grading and concentration in a chemical carrier to give
the optimum:
• Stock removal and surface finish.
• Ease of cleaning.
• Temperature resistance.
• Lubricity to prevent drying out.
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We use only the best quality virgin Diamond
Powder and high purity chemicals in Kemet
Diamond Products.
Most Kemet products are biodegradable.
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Diamond Grading - The exceptionally close
grading standards developed by us exceed
many international standards and guarantee
that Kemet Diamond Products are
manufactured to the closest tolerances. |
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Quality Control - Microscopic and computer
analysis of the Diamond Powder ensures that
it is exactly the correct grading and shape to
maximise cutting performance. |
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Consistency of Performance - Manufactured
to BS EN ISO 9001:2000 Quality Assurance
standards - our guarantee that the quality
will be consistent. |
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User Friendly - Manufactured from high purity
chemicals - safe to use and friendly to
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Special Products
With changing technology, new Diamond Products are
continually being developed to meet specific
requirements. These products may well incorporate
different types of Diamond to suit the application,
e.g. Synthetic Monocrystalline, Polycrystalline or
Natural Powder, suspended in unique chemical carriers.
Our laboratories are available to help and develop
formulations specific to your needs.
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| Type KD Diamond Compound |
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• Worldwide - The preferred choice.
• Universal Diamond Compound for rapid stock
removal and superfine surface finish.
• Soluble in both oil and water.
• Recommended for Toolroom and Precision
Production applications.
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The AppliKator (shown above)
is a syringe designed to
accurately meter out
quantities of Kemet Diamond
Compound, preventing waste
and contamination. |
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Kemet produces special
Diamond Compound
formulations in its
laboratories to suit specific
customer requirements. |
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| Type L Diamond Compound |
• Oil Soluble Diamond Compound
specially developed for use on hard
materials such as Tungsten Carbide,
hardened Steels and Ceramics.
• High thermal stability of the chemical
carrier ensures that Kemet Diamond
Compound resists frictional heat,
remains stable, and keeps its
suspension properties under
operating conditions.
• Recommended for Toolroom and
General Production applications. |
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| Type W Diamond Compound |
• Water Soluble Diamond Compound.
• Recommended for precision engineering
and electronic applications where water
based products are preferred.
• Ideal for use on polishing cloths. |
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Water soluble, stick Diamond
Compound manufactured with
Monocrystalline Diamond
Powder. Allows easy
application of Diamond
Compound to Lapping and
Polishing Discs eliminating the
need for spatulas or manual
application. |
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| Liquid Diamond |
Our range of Kemet Liquid Diamond products are
available as oil soluble, water soluble or as emulsions.
The chemical composition of the carrier fluids is
carefully controlled to ensure that they are
compatible both with the Lapping Plate and the
components being lapped.
• Optimum viscosity and chemical composition
of each Liquid Diamond Product gives fast
stock removal with the ability to produce
superfine surface finishes.
• Suitable for dispensing with the Kemet
Electronic Dispensing System thus eliminating
wastage and reducing lapping costs.
• Specially formulated Liquid Diamond Products
enable parts to be easily cleaned. |
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| Kemet Lubricating Fluids |
• Assists Kemet Diamond Products to cut and
polish more effectively by absorbing frictional
heat and diluting the lapping residue.
• Lubricant performance remains stable even when
under high pressure.
• Manufactured from high purity chemicals. |
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| Polishing Accessories |
Simichrome
One of the finest all-metal polishes in the world. Simichrome is used to produce an ultra high finish. It is ideal
for chrome, steel, brass, gold and silver etc. A small amount of Simichrome applied to a clean Kemet Felt Bob
or Cone will remove the smoky haze often seen after final finishing. This will bring out the brilliance of the metal.
Simichrome can also be applied by hand using a clean, soft cloth and then buffed to a brilliant lustre. It leaves a
protective film and is recommended for use after using Kemet Diamond Compounds. |
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Kemet Silicon Carbide Lapping Compound
In some cases Silicon Carbide is the preferred abrasive for precision lapping, cutting and smoothing of metal
surfaces. Kemet Silicon Carbide Lapping Compound retains its texture and lubrication properties during
extended lapping operations. |
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Sabre Aluminium Oxide Paste
Sabre Abrasive Paste is specially formulated containing Aluminium Oxide Abrasive and is available in 20g
syringes. It is suitable for a wide range of lapping/polishing operations, and it is particularly effective when used for
smoothing soft metals such as brass, aluminium and copper; it is also effective for smoothing small areas of glass
prior to polishing. Sabre Pastes are also available based on both silicon carbide and boron carbide abrasives. |
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KEMET® Rod
KEMET - Composite lapping rods
The finest composite lapping materials for use with Kemet
Diamond Compounds. Kemet composite rods are
manufactured from a homogeneous mix of synthetic resins,
metal particles and other materials. Kemet rods are produced
in varying hardness values so that the softest materials can
be safely lapped with Kemet Diamond compound.
Kemet Iron - Principally used on harder materials where
heavy stock removal is required.
Kemet Copper - Used to lap softer materials where fine
lapping and polishing is the primary requirement.
Kemet XP - Developed for the polishing of hard
materials such as ceramic
and tungsten carbide.
Kemet Tin - Used for precision polishing of
optical and opto-electronic components.
N.B. Rods will be supplied centred each end and
25mm longer than nominal length for machining to
requirements, with the exception of Kemet Tin which
will be supplied uncentred at 150mm long. Prices for
other sizes available on application. |
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Kemet Mounted Grinding Points
Kemet can supply to special order a wide range of mounted grinding points for specialist applications. These are available in a variety of shapes, sizes, grits and bonds. For full information consult Kemet Technical Department. |
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| Tool / Mould Cleaning Systems |
Kemet Ultrasonic Cleaning Equipment
Industry and manufacturers require thoroughly clean parts (typical applications include the cleaning of lapped
components, e.g. mechanical seals, valves and medical equipment). Nothing cleans faster, safer or more
thoroughly than Kemet Ultrasonic Cleaners. Getting into awkward and hidden surfaces is no problem.
With no moving parts, the vibrating transducers create an implosion of microscopic bubbles through the
aqueous cleaning fluid that literally blasts dirt, scale and waste from intricate objects and from the most
inaccessible places.
Full range of complimentary Rinse / Dewatering / Drying / Filtration / Platform and Automation equipment is available.
Features
• Powerful ultrasonics for good cleaning.
• Thermostatically controlled indirect heating
(heating panels in side walls).
• Floor sloping to drain valve.
• Built-in ultrasonic generator.
• Electronic controls with digital
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• Level guard which cuts off heating and ultrasonics
if there is insufficient liquid in the tank.
• Double lid with thermal and acoustic insulation.
• Overflow weir for oil skimming. |
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| Tooling
Equipment |
Kemet Portable Hand Lap Kits for Lapping and Polishing
The Kemet 3 Lap Kit
Admirably suited for Flat Lapping and Polishing by hand. It contains three lapping plates, each with its own
grade of Kemet Diamond Compound. This makes it possible to process many components in three stages, from
lapping through to polishing. Each lapping plate is backed with anti-slip matting.
Kemet Single Hand Lap Kits
Components lapped and/or polished by hand in
minutes rather than hours. Ideal for components
manufactured from ceramics, tungsten carbide,
ni-resist etc. Kemet Portable Hand Lapping Kits are
also ideally suitable for low volume production,
when optimum surface finish is required, and where
it is not economical to purchase a lapping or
polishing machine. |
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