
Wiring your VFD and motor
Parts list, terminal-by-terminal instructions, plug wiring and the safety checks before you power up.

One-man shop
Questions about an order, a machine or a build? You are talking to the guy who made it.
Start here
Wiring, returns, parts and belt speed. Each one is written out in full, so you are not waiting on an email to get moving.

Parts list, terminal-by-terminal instructions, plug wiring and the safety checks before you power up.

Lead times, what the warranty covers, how an approved return works and what it costs.

The budget motors, VFDs, cords, respirator and handle materials I would buy again for a 2x72 build.

Work out surface feet per minute for a 4-inch or 7-inch drive wheel before you order the wrong one.
At the grinder
Two adjustments you make on every Torus, shown on the parts themselves: the ratchet that holds belt tension and the knob that sets tracking.
A belt change is release, swap, ratchet, and the spring pawl and toothed cam hold the tension afterward, not a spring that fades.

Tracking is one small, repeatable adjustment at the 4-lobe knob on the machined billet-aluminum head, the same head on every Torus.

FAQ
Shipping times, returns, warranty, drive wheels and custom work — answered once, properly.
Most orders ship in seven to ten business days from time of order. A more detailed delivery estimate will be given upon ordering your grinder. Every grinder is built to order; accessories, backlog or custom work can add time. You get a tracking number the day it ships.
Email me first and we will work through it together. If it is a workmanship problem, I will work with you to remedy it. Returns are approved case by case within two weeks of arrival. Because every machine is built to order, approved returns carry a 25% restocking fee, you cover insured return shipping for the full purchase price, and original shipping is not refunded.
I warranty the non-wear parts of the grinder against defects in materials and workmanship under normal use. Belts, wheels and other wear items are not covered, and neither is damage from misuse or modification. Motors and VFDs carry their manufacturer’s warranty and I will help you through a claim. Email me and I will review the issue under the warranty policy.
The 4-inch wheel runs the belt slower with more torque, which gives you control for sharpening, finishing and tough steels, and it is what ships on every Torus. The 7-inch spins the belt about 75% faster for quick stock removal on big work. It depends on what you grind most.
Yes. Tooling arms without holes, a custom powder coat color on the Nova, or a specific setup for your shop: email me what you need and I will tell you what it costs and how long it takes. Most of it is a small change in my program.
Yes. The day your order leaves Sterling, Illinois you get an email with the tracking number, so you can watch it all the way to your door.
Yes. Grinders are heavy, so international shipping is quoted per order. Email me your address and what you want to order and I will send you a shipping rate and any details specific to your country.
Contact me when the order arrives and send photos of the box, the packing and the damage. I will review the shipment and the available next steps with you.
Card (Visa, Mastercard, American Express, Discover), Apple Pay, Google Pay, Link, Cash App and Amazon Pay, or pay over time with Affirm, Klarna or Afterpay — all at checkout, over Stripe. Your card number never touches this site. If you need to arrange payment another way, call or text me.
Email me at rich.linville@toruscnc.com, or call or text 1-779-372-0262, Monday through Friday, 9:00am to 4:00pm Central. You will reach the person who built your grinder.
Still stuck
Include your order number, what the machine is doing, and a photo or video so I can review the next step under the support or warranty policy.
What support from me looks like, in their words
The Torus M90 is a game changer and the quality is first rate. Rich did a great job keeping me informed and shipped the grinder quicker than I expected.…
Just received my 2 x 72 M90 belt grinder from Rich at Torus CNC. I've been using a Jet 2 x 42 belt grinder for several years. The Torus M90 is a game changer and the quality is first rate. Rich did a great job keeping me informed and shipped the grinder quicker than I expected. I highly recommend this grinder.
I have had my grinder for about 5-6 months and its incredible, and also rich(the owner is very respectful and patient with any questions, i honestly couldn’t have asked for a better grinder!!
This is not only one of the most affordable and usa made grinders on the market but also a amazing bang for your buck! I have had my grinder for about 5-6 months and its incredible, and also rich(the owner is very respectful and patient with any questions, i honestly couldn’t have asked for a better grinder!!


Next machine
Every Torus uses the same machined dual-axis tracking head; the Nova and Nebula add a 9x12-inch base and a taller frame. Most orders ship in seven to ten business days from time of order.