Gigantic gears
Large spur and herringbone gears designed and machined in-house, including 30° herringbones up to 62" OD and 18" wide.

Grayco Machine is a family business built on one idea: if a customer needs it made, we'll find a way to make it.
Owner Graham Peterson, a Red Seal journeyman machinist, founded Grayco in 1997. In the early days the shop ran out of the family's home garage, with his kids sweeping chips, cutting stock on the bandsaw and turning bearings on the manual lathe.
Today Grayco runs a 9,000 ft² shop in Leduc's Northern Industrial Park. The equipment ranges from three W.E. Sykes herringbone gear generators to modern CNC and EDM, and the shop still feels like a family business.
We're small enough that you talk directly to the people making your parts, and capable enough to take on the jobs other shops turn away.
Graham starts the business out of the family's home garage with a manual lathe, a mill and a bandsaw.
Pump jack gears, pinions and oilfield repair work become the core of the business.
Grayco moves into its 9,000 ft² facility and adds CNC turning, CNC milling and EDM.
Three W.E. Sykes herringbone gear generators make Grayco one of the few shops that can cut true solid-apex herringbones.
Grayco ships herringbone gears, pinions and precision parts to customers from Alberta to Eastern Canada.
Grayco is a small shop with a close-knit crew of Red Seal journeyman machinists. The same people quote your job, program it, run it and inspect it, so nothing gets lost between departments.
Between them, the team has decades of experience on everything from classic Sykes gear generators to modern CNC and EDM, and a shared habit of figuring out the jobs other shops won't touch.
Talk to Our TeamSend a drawing or a model, or bring in the broken part. We'll review it and send a price.
We reverse-engineer worn parts, confirm specs and program toolpaths in Mastercam.
Gear cut, turn, mill or EDM on the right machine for the job.
Every part is checked against the print or sample before it leaves.
Pick up in Leduc, or we ship it, from Alberta to Eastern Canada and beyond.
A few highlights from the work we share on Instagram.

Large spur and herringbone gears designed and machined in-house, including 30° herringbones up to 62" OD and 18" wide.

A custom air chuck with stellite welded on every face, then finished on the CHMER EDM. With compound angles throughout, it was one of the most complex setups we've done.

Custom carbon brush holders for a customer who couldn't buy them anymore, built using every process in the shop.

High- and low-speed gears and pinions for Taro 160 pump jack gearboxes, machined in-house and shipped ready to assemble.
Send it to our Leduc shop. We'll review the job and get back to you with a quote. Serving Edmonton, Nisku and all of Alberta.