Machine Tool Builders Introduces SMG SH550 Vertical Gear Hobbing Machine to North American Marketplace
Machine Tool Builders, Inc. (MTB) now offers SMG's new SH550 CNC Vertical Gear Hobbing Machine, expanding the SH Series to accommodate workpieces up to 570 mm in diameter and a swing of up to 750 mm (22.5 in. / 29.5 in.). With the addition of the SH550 at the upper end and the SH210 as the smallest model in the line, SH Series machines cover production needs for small-, medium-, and coarse-pitch gears, with pitch capability to 3.2 DP or Module 8 as standard.
The SH550 is built on the same rigid, compact platform as the SH410, incorporating wide box-way construction in the bed and column, a high-torque direct-drive table, rapid axis travels, and a geared hob head with multiple speed range options — features shared throughout the SH Series. The design combines conventional hobbing machine rigidity with CNC performance and Industry 4.0 connectivity at a price point aimed at the North American market.
The SH550 can be configured for a range of production environments, from one-off prototype work in a job shop to automated, higher-volume manufacturing. Available packages include options for automation, onboard chamfering and deburring, Klassen robotic deburring and chamfering systems, provisions for extra-long shafts, and hard skiving capability.
MTB is known for the conversational software on its recontrolled gear machines, which lets operators program directly at the machine. A comparable control environment is supplied with SMG machines in North America.
"Now, with the SH550, we offer a very complete array of vertical hobbing machine solutions that deliver world-class performance at an attractive price point," said Ross Wegryn-Jones. “Even better, sourcing these machines from Machine Tool Builders puts sales, service, and support in close proximity to our North American customer base, just as customers would expect if the OEM were located here.”
MTB expects the first deliveries of these machines in early fall 2026.

