Dual-Spindle Gear Grinder uses completely dry process.

Press Release Summary:

Featuring one spindle for skive hobbing and another for generating grinding, SG 160 SKY GRIND eliminates need for cutting oils. Process removes 90% of stock allowance with first pass using skive hobbing tool, which does not excessively heat workpiece. With second finishing pass, grinding wheel removes remaining stock without overheating workpiece. Structure with 2 spindles actuated by linear motors and simultaneous use of channels ensure chip-to-chip time of <2 sec.

Original Press Release:

Samputensili Introduces Dry Grinding of Gears

Samputensili, one of the biggest producers of solutions for the gear manufacturing, has recently launched a world premiere at EMO Milan 2015, a ground-breaking concept that totally eliminates the need for cutting oils during the grinding of gears after heat treatment.

The new revolutionary machine, which is called SG 160 SKY GRIND, features two spindles: one for skive hobbing and one for generating grinding.

It is known that when grinding most of the heat is transferred into the workpiece. Reducing friction, discharging the heat and evacuating the chips are the primary technological tasks for the oil-based lubricant. However, the equipment dedicated to the oil treatment absorb 75% of the total energy consumed by a grinding machine, require a massive amount of space and significantly contribute to the costs of investment and maintenance of grinding machines.

Enrico Landi, Division Director of Samputensili Machine Tools, explains: “The new SG 160 SKY GRIND removes 90% of the stock allowance with the first pass using a skive hobbing tool, which has the advantage of not heating the workpiece excessively. Subsequently, with the second finishing pass, a grinding wheel removes the remaining stock without causing problems of overheating the workpiece, therefore resulting in a completely dry process.

Moreover, its innovative structure with two spindles actuated by linear motors and the use of more channels simultaneously ensure a chip-to-chip time of less than 2 seconds.

The final result is an amazingly productive machine, even faster than traditional dual table grinding machines, characterized by a very small footprint and a lower cost of investment for auxiliary equipment. More importantly, by totally eliminating the need for cutting oils, the machine is extremely environmental friendly, both towards ecosystems and towards our most valuable resource: the health of working people.”

At EMO 2015 all this proved to be true: the new SG 160 SKY GRIND ensures cycle times for the finishing of gears that are perfectly in line with the automotive industry, at a lower cost compared to traditional manufacturing solutions.

Landi concludes: “We are sure that customers will appreciate our revolutionary concept, a proof that investing in innovation leads to the creation of cutting-edge, sustainable technological solutions.”

About Samputensili

Samputensili is a business unit and global brand of SAMP S.p.A., a company of the multinational Maccaferri Industrial Group, founded in Bologna, Italy, in 1936. Samputensili is a world leader in the development, manufacturing and sales of gear grinding machinery, gear cutting tools and related equipment. Manufacturing facilities are located in Italy, Brazil, the United States, Mexico, China and South Korea. Sales and service centers are located throughout Europe, the United States, South America and the Asia-Pacific region.

About Star SU, LLC

Star SU, LLC offers a wide variety of machine tools, precision cutting tools and services including:

• vertical and horizontal gear hobbing machines

• chamfering and deburring machines

• gear grinding machines

• gear shaping and shaving machines

• tool grinding machines

• gear hobs and milling cutters

• indexable gear milling solutions by Sandvik Coromant

• scudding® and power skiving tools

• gear shaper cutters and shaving tools

• chamfer and deburring tools

• gundrills

• form tools and reamers

• carbide blanks and preforms

• tool coatings

• and tool life cycle management services

Star SU is the go-to-market cooperative partnership of Star Cutter Company of Farmington Hills, MI, and SU America, Inc., the US sales and manufacturing unit to SAMP, S.p.A. The companies together represent one of the world’s largest gear machine, tool and gear tool manufacturing producers.

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