46) Pneumatic tube system
Also referred to as a vacuum tube system. In all but the simplest of applications, the pneumatic/vacuum tube system however, such as at drive through banks, these systems are capable of very complex networks (upwards of 1000 origin/destination stations) involving branching, switching or merging. The computer control in modern systems make these systems very flexible.
The carrying units appear much like a projectile that has to be opened so that the load to be transported can be placed inside. There are units installed where carriers approach 12 inches in diameter and are capable of carrying fairly large parts. The speed of a pneumatic/vacuum system averages 1500 fpm.
47) Pick and place industrial robot
The "pick and place" industrial robot is used to feed or disengage parts or tools to or from a machine, or to transfer parts from one machine to another. A variation of a "pick and place" robot is used to build and undo unit loads on a pallet.
48) Palletizer
Palletizers are special machines capable of building a complete unit load on a pallet. Although the most common application is for cases, some palletizers can also handle sacks and bags. A less common palletizer application would be for special products such as sheet stock.
There are two general methods employed for automatically building a full pallet. One makes use of a fixed position or overhead gantry robot with end effectors suited to the individual loads, such as vacuum lifts or a gripper. The other method employs more complex mechanisms for forming pallet layers off line, one at a time, and then shifting or transferring each successive layer onto the pallet as it is lowered via a lift/lower table.
49) Pallet stacking frame
A load securing device that often can take the place of containers or bins. This device consists on iron posts and connecting frame members resting on the four corners of a pallet creating an open container in appearance with a certain amount of load retention ability. The frames are removable for storage, but when in use, the loaded pallets can be block stacked on the floor.
This is a particular advantage for unit loads that would not stack safely without the rigid frame. There are other attachments such as special metal frames and welded wire gates, but none of these allow for pallet stacking.
50) Reach truck
Industrial trucks equipped with a telescoping fork arrangement that permits the stacking of loads double deep. For storage depths greater than two, there is at least one example in Europe where the fork unit mechanically disengages from the mast allowing it to run into the rack on narrow rails under its own power which is derived from the truck via an umbilical cord. Applications like this can be considered a very special case of a drive-in type storage rack.
51) Pallet truck
A manually powered fork truck. The operator physically pushes the forks into the opening on the pallet and "jacks" the racheting lift mechanism so as to raise the pallet off the floor. Once lifted, the load can be manually moved from place to place.
52) Roller belt conveyor
A powered form of conveyor where the transporting belt is supported by rollers spaced along the frame, not unlike a gravity roller section. Power and forward motion is transferred by utilizing a moving belt powered by a pulley and motor configuration at one end of the section. Capable of handling rather heavy loads.
53) Record shelving
A shelving storage system to store files and records. The units are sized at the time of order to "fit" the parameters of the files and records to be stored. These shelving systems are generally closed on three sides and may have retractable or swing up and down opening covers, all to provide security, protection and cleanliness.
54) Records shelving
A shelving storage system to store files and records. The units are sized at the time of order to "fit" the parameters of the files and records to be stored. These shelving systems are generally closed on three sides and may have retractable or swing up and down opening covers, all to provide security, protection and cleanliness.
May also be known as "Archive shelving".
55) Push back rack
Utilizing wheels in the rack structure, this rack system allows palletized goods and materials to be stored by being pushed up a gently graded ramp. Stored materials are allowed to flow down the ramp to the aisle. This rack configuration allows for deep storage a each rack level.
56) Rack supported building
A complete independent storage rack system which is the basic structural system of a building. A storage or warehouse facility in which storage rack functions as the structural support for the roof.
57) Pallet flow rack
May be considered back-to-back selective rack. Inclined conveyor wheel sections are installed in the rack enabling back-loaded pallets are allowed to flow by gravity to the front or pick face. Pallet flow rack is useful for the movement of fast-moving items and serves to increase density of storage and throughput.
58) Portable rack
Self contained steel rack units made up of bases and/or decks and posts. Portable rack may be welded or collapsible units either having a knockdown feature which can be a space saver when units are not in use.
59) Pneumatic hoist
A motor driven hoist whose power is derived from pneumatically powered motors. These hoist are often used in areas where electrical sparks are undesirable due to the possibility of explosion of fumes or materials.
60) Roller chain
A series of alternately assembled pin links and roller links in which the pins articulate inside the bushings and the rollers are free to turn on the bushings are press fit in their respective link plates.