Superabrasive manufactures high quality diamond wheels for all popular edgers, including AIT, AIT Indo, Briot, Briot Accura, Essilor, Gerber Coburn, Essilor, Nidek Santinelli, Huvitz, Hoya, Edgemaster, Novamatic / Takubo, and Weco. See below for some frequently asked questions and answers, that will help you determine which wheels you need.
How do I know which wheel I need?
This can many times be determined by answering three simple questions:
Knowing your machine's manufacturer provides a lot of information, such as many of the wheel's standard dimensions. However, the wheel's width is not always standard, which is why we recommend that you measure the width of the wheel you are currently using to determine exactly what size you are needing. Many machines will accept more than one wheel size, depending on the set-up. Lastly, different lens materials require different bonds for optimal cutting performance, which is why this piece of information is important.
What is the difference between the different bonds...GP, GPP, BR?
Superabrasive's roughing wheels are produced in three different bonds designed to process a specific type of lens material. The GP bond is designed for cutting glass and plastic, the GPP bond may be used to cut glass, poly, and plastic, while BR (brazed) roughing wheels are optimal for cutting primarily polycarbonate, plastic, and high index lenses.
Do I need a special wheel for cutting Trivex®?
For labs that regularly process TRIVEX® material lenses, we recommend using TRIO®, a wheel specially designed in a collaborative effort between Superabrasive and PPG for cutting TRIVEX® material lenses. Comparatively, TRIVEX® has a very low melting temperature and standard brazed roughing wheels become too hot during the roughing cycle to effectively cut the lenses. The wheel and the lens overheats, causing the TRIVEX® lenses to melt, burn, and smoke. TRIO® is designed to reduce the surface temperature of both the wheel and lens so that TRIVEX® lenses can be cut quickly and effectively. TRIO® is also ideal for processing plastic and polycarbonate lenses as well, so there is no need to designate a single machine for cutting TRIVEX®.
Why does your roughing wheel for TRIVEX® have holes and not slots?
Through testing, we determined that adding holes to the surface of the wheel was the most effective way of reducing its surface temperature without interfering with the rotation and axis of the lens. We found that cutting slots across the width of the wheel caused the lens to briefly lose contact with the wheel. When the wheel and the lens come back into contact, the lens experiences some jarring which creates axis problems and can ultimately damage the lens.
How do I know which wheel I need?
Much like determining the appropriate roughing wheel for your machine, you will need to know 3 key pieces of information: What is the manufacturer of my machine?...What is the width of my current wheel in millimeters?...What type of lenses am I cutting?
Can I replace either the finisher or polisher without replacing the other wheel?
Yes, but we recommend that you replace these wheels as a matched set. It is important that the profiles of your finisher and polisher match, so if there is significant wear on your wheels, it is always best to replace both.
What is the difference between steel bond and brass bond finishers?
Steel bond finishers are designed for processing glass and plastic, and brass bond is optimal for processing plastic and polycarbonate.
What is the difference between "four angled" profiles and "flat with a V" profiles?
By turning your wheel on its side and examining your wheel's profile, the difference can be easily spotted. "Four angled" finishers slope down to the V channel, while "flat with a V" wheels are completely flat from the edge of the wheel to the V channel. In most cases, your wheel's profile is standard and changes should not be made unless you have special needs and have determined that your machine will accept various profiles.
There are extra numbers at the end of some finishing and polishing item numbers in the catalog. What do these mean?
For finishing and polishing wheels, these numbers refer to measurements that configure the wheels' profile, such as the degree of the bevel opening and the distance to the bevel from the edge of the wheel. These specifications are standards determined by the machines' manufacturers and should not be altered unless you have special needs and have determined that your machine will accept various profiles.
Does Superabrasive offer a special finishing wheel for processing TRIVEX®?
No. The issue of overheating is only present in the roughing cycle; therefore, a special finishing wheel for processing TRIVEX® is not necessary. Standard brass bond finishing wheels are optimal for processing plastic, polycarbonate, and TRIVEX®.