New Cat® dipper for Cat 7495 HF Electric Rope Shovels improves uptime and digging performance

 

For Worldwide Release: September 2021
Release Number: 750PR21

Featuring an entirely new, patent pending design, a new Cat® dipper improves performance and reliability in hard digging applications of the Canadian Oil Sands without increasing demands on the hoist and crowd capabilities of the Cat 7495 HF Electric Rope Shovel. Improvements to shimming and inserts alone are projected to increase uptime as much as 0.25%, potentially leading to significant gains in production.

The new design optimizes lip cutting angle, resulting in significantly reduced heel wear. Improving stiffness and dig performance, the ground engagement tools are pitched at an upward angle that results in less bending force and even tooth wear top to bottom.

Approximately 7% lighter than the current 45.9 m3 (60 yd3) latched dipper, the new design delivers more available cutting force for more consistent fill factors and increased production in difficult digging conditions. Using Finite Element Analysis (FEA) and virtual validation tools, engineers reduced the dipper’s weight, translating to lower stress on the machine, as well as longer life and improved reliability for key components of the shovel’s front end.

The dipper features a new vertical latch system that delivers improved system performance and lower part maintenance, reducing overall operating costs. Rather than sliding, the latch’s tapered-end design lifts the insert surfaces away from each other. The design extends wear life while reducing service time, contributing to improved uptime. The latchbar guide plate features a quick-change design, further reducing maintenance time and costs.

Optimized linkage on the new single wet-disk snubber reduces the rotational kinetic energy of the door by more than 40% on closing and 75% during opening, increasing service life.

Caterpillar engineers tested more than 300 dipper shapes and configurations in over 900 simulations using Cat proprietary software to analyze performance data, completing stress plots and wear plots for the models. The “virtual” machine, operator, and pile were all validated using actual machine data reviewed by Caterpillar subject matter experts for accuracy. The simulations showed that with the new dipper geometry, customers can achieve better penetration and fills per pass.

More information on the new Cat dipper can be found by visiting Caterpillar MINExpo 2021 exhibit #6229, contacting the regional Cat dealer or visiting www.cat.com

 

7495 Electric Rope Shovel Dipper
of

Cat 7495 Electric Rope Shovel Dipper

Cat 7495 Electric Rope Shovel Dipper
of

Cat 7495 Electric Rope Shovel Dipper

7495 Electric Rope Shovel Dipper
Cat 7495 Electric Rope Shovel Dipper

 

 

Product & Service News

See the latest product and engine announcements from Caterpillar.

See the Latest News

 

# # #

CAT, CATERPILLAR, LET’S DO THE WORK, their respective logos, “Caterpillar Corporate Yellow,” the “Power Edge” and Cat “Modern Hex” trade dress, as well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.

©2021 Caterpillar All Rights Reserved 

 

 

Press Inquiries

Caterpillar Trade Press Media Representatives

Americas

Sharon Holling: Holling_Sharon_L@cat.com

Johanna Kelly: Kelly_Johanna_L@cat.com

Europe, Africa, Middle East

Francine Shore: Shore_Francine_M@cat.com

Reader Requests

www.cat.com/requestCatinfo

 

 

warning

Internet Explorer users may experience issues with certain features of our site.
Please try a current version of an alternate browser (i.e. Google Chrome, Microsoft Edge, Mozilla Firefox) for the full Cat.com experience.