±0.03 mm. That’s the cutting precision tolerance on Vimfun endless wire saws — and it’s a number we stand behind across glass, ceramics, quartz, and sapphire applications. But tolerance on
Most engineers setting up their first diamond wire cut ask the same question: how fast should the wire run? The short answer — for most hard and brittle materials, somewhere
A 0.5 mm diamond wire running at 60 m/s removes material from a sapphire boule without generating measurable heat at the cut zone. No blade vibration. No thermal stress cracks.
We spent three days debugging a cutting line that was producing wafers with a periodic waviness — clean cuts for 80% of the wafer surface, then a recurring ridge pattern
A customer cutting sapphire wafers contacted us two months into production for technical support: his wire life had dropped from the 150 hours we’d specified to about 80 hours. We
A customer once asked us why two visually identical diamond wire loops — same diameter, same diamond grit size, same advertised tension rating — gave them wildly different cutting results.
Do you know how large companies cut graphite, which is a hard black block? Special tools make it possible to make clean, smooth cuts. After working in the field for
We had a cutting line producing 300μm silicon wafers with ±25μm TTV — three times the spec limit. The operator swore the wire was defective. Static bench testing showed the
We spent the first six months with our wire saw convinced that faster wire speed always meant faster cuts. Then we ran a batch of sapphire wafers at 70 m/s and watched
Most engineers blame the diamond abrasive when a wire loop cuts poorly. We did too — until we burned through $30K in premium diamond wire on a sapphire wafer line and still
Don’t worry! We know that obtaining cutting machines that meet your needs can be very challenging. Our professional cutting experts are always available to support you: