As established in Part 1 of our Automotive Blog Series, “Cost-Effective Surface Improvement for Key Engine Components,” shot blasting is an effective technique for the surface treatment of automotive parts including crankshafts.
Used in heavy trucks, heavy equipment, and, even,
large ships, crankshafts enable an engine to move a vehicle by converting the
reciprocating (up/down) movement of the pistons/connecting rods into a
rotational movement that propels the vehicle forward.
Depending on their size, weight, and production volume, crankshafts can be blast-cleaned in different machines. Rosler Metal Finishing offers solutions for a wide range of crankshaft types with weights from 15 to more than 500 lbs and lengths from 10 up to 80 in and more.
Built with specific work pieces in mind, the
machines designed to process crankshafts are as diverse as the work pieces they
For somewhat larger work pieces with relatively low production volumes, Rosler’s RHBE spinner hanger machines offer flexible options.
Rosler RHBE 17/22 spinner hanger shot blasting machine
For example, the RHBE 17/22 spinner hanger shot blast machine with a working envelope of 67 x 86 in allows the individual blast cleaning of crankshafts with lengths of up to 80 in and weights of more than 500 lbs In case of smaller crankshafts, a special work piece fixture permits the simultaneous processing of eight or more components.
Rosler RHBE Overhead Rail Machine
In recent years there has been a trend towards
specially engineered, dedicated shot blast machines allowing low-cost,
efficient blast cleaning of large volumes of small to midsize crankshafts.
Rosler RKWS 3 x 4 blast machine
Responding to this trend, Rosler has introduced
two specially engineered, highly compact shot blasters, the RKWS 2 x 2 and the
RKWS 3 x 4. These machines offer cycle times of 20 seconds per part for the
RKWS 2 x 2 and 15 seconds per two parts for the RKWS 3 x 4, including work piece
loading and unloading by multi-axis robots.
The specific turbines used in a shot blasting
machine greatly impact its effectiveness and efficiency. That’s why Rosler
designed its Gamma 400 G turbines.
Rosler Gamma G turbine blade
These turbines produce 20 percent higher blast
performance and lower energy consumption than conventional blast wheels. With a
quick-change system, the Gamma blades minimize downtime caused by blade
changes. To minimize wear and the need to purchase new blades, Gamma blades are
curved to allow both sides of the blades to be used for added longevity.
Maintenance demonstration for Gamma 400 G turbine blast machine blades
The Rosler Way
With more than 80 years of experience, Rosler has the technology and drive to develop a shot blasting application for your automotive crankshaft needs. Contact us to discuss your challenges and needs so we can help you find a better way.
The complete Automotive Series includes:
- Part 1 – Cost-Effective Surface Improvement for Key Engine Components.
- Part 2 – Shot Blasting Machines Designed for Crankshafts.
- Part 3 – Typical Mass Finishing Machines Used for Crankshafts.
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