Heavy equipment machinery

A shovel is a long-handled tool with a scooping blade. It is used to dig and move material. There are several types of shovels, each designed for a specific task or tasks. Some shovels that are used for digging earth have "foot treads" on the top of the blade, flattened areas on which to rest one’s foot to add extra force. Shovels are also available with a variety of handle lengths and handles.

Barn Shovel. A big, industrial-strength shovel for moving grain or snow or doing clean up is sometimes called a barn shovel. These shovels usually have a flat leading edge and are notably deep, with high sides to steady the load.

Coal Shovel. A coal shovel is used to move piles of coal or to move coal from storage to a hod or other coal carrier. It has a wide flat edge and its blade is flat in the center and curved sharply at the sides. Coal shovels are available with shorter or longer handles.

Garden Shovel. Garden shovels differ from spades in both construction and purpose. The blade of a spade extends nearly straight down from the handle, suiting it for working the soil, but not for lifting and moving it. Shovels, with the curved attachment — called a lift — between the blade and the handle, allow the user to lever the load.

Standard garden shovels are round-point shovels with a blade that is about 8 inches wide and 12 long (20 x 30 cm.). It is somewhat curved at the edge to help maintain the load. Floral shovels are made to move a bit more delicately within a flower bed, and so are smaller. Square-point shovels, which have a flat bottom edge, are designed for collecting and lifting already loosened material, not for digging.

Snow Shovel. Snow shovels may have blades of metal or plastic, and the blades often have ridges. Some snow shovel blades are quite flat, while others have more of a curve from bottom to top. There are handle variations, such as tee-shaped handles and handles with curves meant to make them ergonomically sounder, and snow shovels designed to push snow as well as dig and lift it. Some of these latter shovel types have and u-shaped handles that one holds with both hands.

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Excavators where the digging action is an upward motion are called front shovels or just shovels. The front shovel perform excavation by crowding the material away from the machine.They are mainly used for digging above the track level and loading the material into hauling units. Thus they are suitable for use in quarries for loading of blasted or short rocks. A typical modern shovel is depicted in the diagram below.

A Front Shovel Diagram

A front shovel has the capacity to develop high breaking force. This is required as the material being excavated should be such that it will stand on its own almost at a vertical face. And normally such material are rocky in nature. Usually the front shovel are mounted on track base and have a slow traveling speed. The other basic parts of a shovel consist of the mount, cab, boom, stick and the bucket as shown in the figure below. The size of a shovel is indicated by the weight and bucket size.

A front shovel has to be close to the material to be excavated before it begin excavating. When this is achieved, the bucket is lowered to just above the track level with the bucket teethes pointing into the material face. A crowding force is applied by hydraulic pressure to the stick cylinder and at the same time the bucket cylinder rotates the bucket through the face.

The bucket will be fully filled if the height of the of the excavated material is right. If the material height is too low a second pass will be required. Then once the bucket is full it just tipped over to load the material into hauling units. Finally the material left on the pit floor will be excavated after the upper material is excavated.

Belts
P&H belts offer OEM specified drive characteristics to provide optimum performance in mining applications. Belts are available for air conditioner compressors, air compressors, engine alternators, and shovel crowd-drive systems.

Bronze Bushings
P&H bronze bushings are engineered and manufactured to provide the delicate balance of toughness and softness needed to protect surfaces and maximize critical component life, resulting in a first line of defense to absorb abrasive wear before the protected component does. World-class manufacturing processes assure the highest quality bronze bushings built to exacting design specifications.

Brushes
Partnering with Carbone of America, MinePro offers electric motor brushes that are performance-matched to P&H motors and specific operating and environmental conditions. Brushes are available in spade and quick disconnect styles to meet individual preferences.

Disc Brakes
P&H disc brakes combine low brake pressure with a simple design to provide the best value available. Disc brakes offer increased brake capacity with a full 360-degree lining surface on each side of the disc, and minimal moving parts, reducing the time and energy required to accelerate and decelerate, and offering ease of maintenance, adjustment and rebuild.

Filters
Air and oil filters require frequent changes to preserve component life. MinePro filters deliver the proper flow characteristics and filtration level for your equipment. Refer to your operator manual for change-out intervals.

Ground Engaging Tools (GET)
Minepro provides an extensive line of conventional and specialized ground engaging tools. GET is provided for all makes of electric mining shovels, hydraulic mining shovels, and front end loaders. The line is also being broadened to include draglines. All tools are forged for maximum strength, durability and cost effectiveness.

Lighting Systems
MinePro offers quality lighting for all your mining equipment, with a powder-coated finish allowing fixtures to withstand all weather conditions. Housings and all major components are made of heavy-gauge steel and aluminum, and universal positioning allows fixtures to be aimed as needed.

Lubricants
MinePro offers a wide variety of superior performing lubricants from the technological leaders in the industry. Our family of multi-service, all season lubricants is designed to withstand the harshest environments: from extreme cold and heat to very wet or very dusty conditions.

Roller Bearings
P&H anti-friction roller bearings are engineered with exacting specifications based on the experience of millions of operating hours. Speed, torque, fit and load characteristics involved in each critical bearing function are evaluated and given careful attention, resulting in P&H bearings with overall service life and performance qualities that cannot be equaled.

Tough Rider Seats
P&H Tough Rider seats provide an outstanding combination of comfort and durability, reducing operator fatigue and replacement costs. All seats are designed with the rugged construction required in mining equipment, and a host of standard, optional and custom features to meet every need.

Wear Liner Packages
Replaceable wear liner packages for buckets provide defense against abrasive wear and impact damage to the bucket, increasing its life. MinePro offers a full range of liners in several grades of hardness to combat the factors most prevalent in your specific application.

Wire Rope
Wire rope is at the heart of the intricate systems it supports, acting in concert with a variety of mechanical components. MinePro offers superior performing rope, to keep your systems operating at peak efficiency. Anticipating demand, our wire rope is manufactured and kept in stock to meet your needs in the field.