Vacuum Attaching Tools & Equipment For Materials Handling

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Service & Support | Company Profile | Glossary

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Following are terms commonly found throughout our literature. To quickly find references, use the "Find (on this page)" function available in many popular browsers.



ABS: an abbreviation for acrylonitrile butadiene styrene, a lightweight and durable plastic used in certain Wood's Powr-GripTM vacuum cups.

AC power: short for alternating current power. AC power enables vacuum equipment to operate by means of a plug-in type power cord.

accessory mount: on certain Wood's Powr-GripTM vacuum cups, a component used to attach a handle or an object (camera, scope, etc).

Ace Dolly: a specialized Wood's Powr-GripTM product that combines a floor dolly and a mast fitted with hand cups, for use in loading and unloading glass from trucks or racks.

actuator: a mechanical device used to manipulate a load without manual effort. Certain Wood's Powr-GripTM lifters use an electro-mechanical linear actuator to tilt loads.

after-stick: the tendency of some vacuum lifters to remain partially attached to the contact surface of the load after the user has activated the release mechanism, which may result in load damage or injury to the user (see "blow-off").

air filter: (1) a felt disk or circular screen located in the face of a vacuum pad, which helps prevent debris from entering vacuum cups or equipment products; (2) an air-line filter designed to prevent solid particles and liquid from contaminating the vacuum system of powered vacuum equipment.

air power: see "compressed air power".

air pressure: see "ambient air pressure", "atmospheric pressure" and "barometric pressure".

allowable deflection: the maximum amount of deflection that load material can experience without becoming permanently creased or damaged (see "deflection" and "overhang").

allowable overhang: the maximum amount of overhang that load material can possess without breaking, creasing or otherwise being damaged (also known as maximum overhang; see "overhang").

ambient air pressure: the air pressure in a specific environment, as influenced by elevation and weather patterns (see "atmospheric pressure" and "barometric pressure"). Ambient air pressure has a significant bearing on what vacuum level can be generated by vacuum equipment in a particular location.

ANSI: an abbreviation for American National Standards Institute. ANSI/ASME Standard B30.20b - 1996, Chapter 20-2, Group II sets American design standards for below-the-hook vacuum lifting devices.

apply time: the number of seconds required for the vacuum pad(s) of powered vacuum equipment to attach to a contact surface (compare "release time").

ASME: an abbreviation for American Society of Mechanical Engineers. This organization develops American standards for designing below-the-hook vacuum lifting devices, which are published by ANSI.

assisted manual tilt: see "Quadra-Tilt".

atmospheric pressure: the force created by the weight of atmospheric air pressing against an object. Standard atmospheric pressure is 29.9" Hg (14.7 psi or 101 kPa) at sea level and decreases with increasing elevation.

attaching surface: see "contact surface".

back-up system: see "DC vacuum back-up system".

barometer: an instrument used to measure atmospheric pressure.

barometric pressure: a synonym for atmospheric pressure, with emphasis on pressure changes related to weather (that is, high or low pressure systems), as measured on a barometer.

below-the-hook lifter: a type of equipment that is suspended from a crane or similar device in order to attach a load for lifting.

billable: (e.g., billable repair) used to describe product repairs or replacement items which are charged to the customer (also known as non-warranty; compare "customer service" and "warranty").

blow-off: the ability of certain Wood's Powr-GripTM vacuum equipment products to reverse airflow within the vacuum system, creating air pressure between vacuum pads and the load surface. By quickly breaking the vacuum seal between the pads and load, blow-off improves release times and virtually eliminates after-stick.

C-frame lift bar: a C-shaped lift bar available on certain Wood's Powr-GripTM below-the-hook vacuum lifters, which enables them to transfer loads directly into and out of open shipping crates.

C-Frame Lifter: a kind of Wood's Powr-GripTM below-the-hook vacuum lifter which features a C-frame lift bar.

CFM: an abbreviation for cubic feet per minute (see "SCFM").

capacity: any or all of several specifications involving load handling capability, especially the maximum load weight or load dimensions that vacuum equipment is rated to handle (see "load capacity" and "pad spread").

Channel Lifter: any of a modular series of Wood's Powr-GripTM below-the-hook vacuum lifters that feature 90° manual tilt and 180° manual rotation, as well as interchangeable lift frames which allow the pad spread and load capacity of lifters to be adjusted to the load size.

check valve: a valve that allows air to flow only in one direction, used to prevent or reduce the loss of vacuum in Wood's Powr-GripTM vacuum lifters and equipment products while they are supporting a load.

CleatTM: a kind of Wood's Powr-GripTM mounting cup that is fitted with a recreational grade pan-and-tilt head for holding camera equipment or similar attachments in a wide variety of positions.

COD: (1) an abbreviation for cash on delivery; (2) the status of an account which requires the entire invoice amount to be paid to the shipping company at the time of delivery.

compound: a homogeneous mixture of natural and/or synthetic materials that make up the kinds of rubber used in vacuum pads and other molded products.

compressed air power: a power source that enables vacuum equipment to operate by means of a compressed air line (see "venturi").

concave pad: a vacuum pad having a concave face, designed to attach to curved surfaces, as well as to flat ones (compare "flat pad").

concept drawing: a type of proposal drawing intended to convey the basic idea of a product design and to solicit clarification of requirements from the customer. Due to the preliminary nature of the concept drawing, pricing and analysis of production feasibility normally are not available at this stage of product development.

contact surface: the surface to which vacuum pads of vacuum equipment products are attached.

contamination: any substance that could prevent a vacuum pad from sealing against a contact surface, including dust, oil, wax, etc.

cup: see "vacuum cup" and "suction cup".

curved: used to describe contact surfaces that have curvature. Most vacuum cups or below-the-hook vacuum lifters can attach to curved surfaces only if they are specifically designed for such an application (see "concave pad").

customer service: (e.g., customer service repair) used to describe product repairs or replacement items which are provided free of charge to the customer, despite the fact that they are not covered under warranty (compare "billable" and "warranty").

damping: the use of a hydraulic device on certain Wood's Powr-GripTM below-the-hook vacuum lifters to help the operator control tilt motion and prevent load damage that otherwise might result from jarring.

DC power: short for direct current power. DC power enables vacuum equipment to operate independently by means of an on-board battery.

DC vacuum back-up system: a battery-powered, auxiliary vacuum generating system available on certain Wood's Powr-GripTM below-the-hook vacuum lifters, which is designed to maintain vacuum if the primary system fails to do so.

deflection: in flat handling or tilting of sheet materials, the distance that overhanging material bends downward from the level of the attachment points (see "overhang" and "allowable deflection").

Drill Stand: see "Vacuum Base Drill Stand".

drop-ship: the practice of shipping an order placed through an authorized dealer directly from the factory to the end customer, in order to expedite the order and minimize freight costs.

dual vacuum system: available on many Wood’s Powr-GripTM below-the-hook vacuum lifters that are equipped with a DC-powered vacuum system, it features two vacuum line circuits, allowing the lifter to maintain the vacuum level for one circuit even if an unexpected vacuum loss occurs in the other one. The dual vacuum system is designed to reduce the risk of falling loads, which could result from breakage or other accidents that compromise one area of the vacuum system (see "vacuum system").

durometer: (1) an instrument for measuring the hardness of molded rubber; (2) by extension, a standardized measurement of hardness for molded rubber, based on its resistance to indentation from such an instrument. Hardness values range from 10 to 95 on the Shore A scale, where higher numbers indicate harder varieties of rubber and lower numbers indicate softer ones.

exchange: a remanufactured vacuum cup offered to customers under the terms of the Exchange Program (compare "repair"; see "Exchange and Repair Service").

Exchange and Repair Service: a Wood's Powr-GripTM program in which certain models of used vacuum cups may be returned in exchange for remanufactured ones at a reduced cost (also known as the Exchange Program) and other vacuum cups may be returned for repairs.

Exchange Program: see "Exchange and Repair Service".

flat: used to describe contact surfaces that are free of any curvature. Many vacuum cups or below-the-hook vacuum lifters require flat surfaces in order to attach effectively (see "flat pad").

flat handling: a kind of load movement in which the load is aligned with a horizontal plane (compare "upright handling").

flat pad: a vacuum pad having a flat face, designed to attach to flat surfaces (compare "concave pad").

Flip Handle: a kind of Wood's Powr-GripTM lifting cup that features a flip-over bail handle, allowing the load to swing or change orientation during the lift.

foam ring: a circular piece of closed-cell foam rubber attached to the sealing edge of certain Wood's Powr-GripTM vacuum pads, which helps the pad attach to rough or textured surfaces (such as flame-cut stone) and reduces the vacuum flow required for powered vacuum equipment to overcome leakage.

FOB: an abbreviation for free on board, a shipping term used to indicate the location at which the seller is considered to have delivered the goods, under the terms of agreement (for example, FOB Laurel, Montana). This means the buyer is responsible for shipping costs and for risks of loss or damage to the goods beyond that point.

Foot: a specialized Wood's Powr-GripTM product that features straps to prevent shearing in insulated glass units when handled by a below-the-hook vacuum lifter.

Gentle Giant: see "Vertical Lift Gentle Giant".

green lift light: a green indicator light available on certain Wood's Powr-GripTM below-the-hook vacuum lifters, which turns on whenever the vacuum level is sufficient for lifting the maximum load weight.

Grifter: a push-on style, small capacity lifting cup available through Wood's Powr-GripTM distributors.

gripper: a synonym for "vacuum cup".

Gripper: a kind of Wood's Powr-GripTM mounting cup that is fitted with a professional grade pan-and-tilt head for holding camera equipment or similar attachments in a wide variety of positions.

hand cup: a vacuum cup designed for manually lifting and carrying loads by means of an integrated handle.

Hand Cup Frame: a kind of Wood's Powr-GripTM below-the-hook vacuum lifter that employs detachable hand cups to lift a load (compare "Powr-Frame"), available in Rotate and Tilt or in Vertical Lift varieties.

Handi-Grip: a kind of Wood's Powr-GripTM lifting cups that feature a T-handle.

head room: see "height to hoist".

height to hoist: the distance from the ground to the attachment point (hook) of hoisting equipment used to suspend a below-the-hook lifter.

Hg: the symbol for mercury (from the periodic table of elements). Inches of mercury are the common American units used to measure the vacuum level in a vacuum system, as well as barometric pressure. An equivalent metric value normally is expressed in (negative) kilopascals: 1.00" Hg = (-) 3.39 kPa.

high-duty tilt (with speed control): available on certain Wood's Powr-GripTM below-the-hook vacuum lifters, a tilt components package which significantly increases the lifter's tilt duty and allows the operator to vary the tilt speed.

hoist: a mechanical device that provides upward and downward movement of loads suspended from a crane or an overhead lifting system.

hoisting equipment: equipment used in combination with a below-the-hook lifter to lift a load, including cranes, hoists and tackle. Hoisting equipment provides the upward, downward and lateral load movement.

individual pad shutoffs: available on the pad frame of certain Wood's Powr-GripTM below-the-hook vacuum lifters, manually operated valves which activate or deactivate vacuum flow at specific vacuum pads. By changing the effective pad spread and load capacity, shutoffs enable a lifter to handle loads of various dimensions and weights.

input review drawing: an engineering drawing that represents a product design, developed after the customer has placed an order. The input review drawing is used to confirm that the proposed design meets customer requirements.

interchangeable pad frames: specially sized pad frames that can be installed on certain Wood's Powr-GripTM below-the-hook vacuum lifters in order to handle loads with different dimensions and/or weights.

ISO 9001: a quality management standard for companies that design, manufacture and distribute their own products, developed by the International Organization for Standardization.

kPa: an abbreviation for kilopascals, a metric unit used to measure pressure or vacuum levels. An equivalent American value normally is expressed in inches of mercury or pounds per square inch: 1.00 kPa = 0.295" Hg or 0.145 psi.

lift: the act of raising a load in the air, often for the purpose of transporting it or manipulating its orientation in some way.

lift bar: the structural member of a below-the-hook vacuum lifter which provides an attachment point (lift bail, lift spool or lift shackle) for hoisting equipment used to lift a load.

lift frame: for Channel Lifters, the lift bar combined with the rotation assembly and, when applicable, the pad channel support arms. Interchangeable lift frames allow conversion from single- to double-channel lifters, and vice versa.

lift light: see "green lift light".

lifter: see "vacuum lifter" and "below-the-hook lifter".

lifter speed: the total time required to move and/or manipulate a load in a specific work location using a below-the-hook vacuum lifter, including factors such as apply and release times, the time required for rotation or tilt movements, and the distance the load must travel (also known as cycle time).

lifting capacity: see "load capacity".

lifting cup: a synonym for "hand cup", with emphasis on its usefulness for lifting loads (see "vacuum lifter").

load capacity: the maximum load weight that a vacuum lifter or equipment product is rated to lift or support.

load manipulation: see "load movement".

load movement: any of a variety of load motions facilitated by vacuum equipment, including "tilt", "rotation", "upright handling" and "flat handling" (see individual terms).

load surface: the contact surface to which a vacuum lifter is attached in order to lift a load.

low-marking: used to describe rubber compounds that reduce the tendency to leave marks or residue on contact surfaces, an important feature of the low-marking rubber optionally available in Wood's Powr-GripTM vacuum pads.

manual pump: a hand-operated vacuum pump, standard on Wood's Powr-GripTM vacuum cups.

manual rotation: rotation in which a below-the-hook vacuum lifter supports the load while the operator manually turns the load edgewise around the lifter's rotation bearing (compare "power rotation").

manual tilt: tilt in which a below-the-hook vacuum lifter supports the load while the operator manually pivots the load around the lifter's tilt bearing (compare "power tilt").

maximum load capacity: for vacuum equipment with variable load capacity, the highest load weight that the equipment is rated to lift or support under optimal circumstances (see "per-pad capacity").

mounting cup: a vacuum cup designed for securing loads by means of an accessory mount.

mounting surface: the contact surface to which a mounting cup is attached in order to support a load.

movable control pendant: available on certain Wood's Powr-GripTM below-the-hook vacuum lifters, a movable, hand-held enclosure with controls for attaching/releasing vacuum pads and/or for powered rotation or tilt movements, connected to the lifter by an electrical cord or air line. A movable pendant enables the operator to manipulate loads at a short distance from the lifter, thus remaining outside the path of load movement.

movable pad mounts: available on certain Wood's Powr-GripTM below-the-hook vacuum lifters, specialized mounts which allow vacuum pads to be repositioned at various predetermined locations on the pad frame and secured using cotterless hitch pins. By changing the effective pad spread, movable pad mounts enable a lifter to handle loads of various dimensions.

nominal diameter: the approximate diameter of a vacuum pad or vacuum cup, measured to the outermost sealing edge and rounded to an appropriate number. While the actual diameter may change slightly, depending on whether or not the vacuum pad is attached to a contact surface, the nominal diameter provides a consistent and convenient way to identify the basic size of a pad or cup.

nonmarking: used to describe rubber compounds that do not leave marks or residue on contact surfaces (see "low-marking").

nonporous: not permeable by air (compare "porous"). Most vacuum cups or below-the-hook vacuum lifters require relatively nonporous contact surfaces in order to attach effectively.

nonstaining: used to describe rubber compounds that do not leave stains on contact surfaces (due to oils leaching out over time), an important feature of the standard rubber used in Wood's Powr-GripTM vacuum pads (note, however, that such pads may leave some residue on contact surfaces).

operating power: any of the energy sources that may be used to operate vacuum equipment products, including AC, DC and compressed air power.

option: any feature that can be added to products to enhance their capabilities.

overhang: a measurement of the portion of load material which extends sideways beyond the vacuum pads of a vacuum lifter (see "allowable overhang").

overhead clearance: see "height to hoist".

overhead system: a bridge crane, jib crane or similar kind of permanent apparatus used to suspend a below-the-hook lifter over a work area.

pad: see "vacuum pad".

pad arm: a structural member of a pad frame which supports one or more vacuum pads.

pad compounds and durometers options: various rubber compounds and durometers available in Wood's Powr-GripTM vacuum pads for specific applications, including those requiring low-marking, temperature-resistant or chemical-resistant properties (see "compound" and "durometer").

pad frame: on a below-the-hook vacuum lifter, the structural framework with vacuum pads, which provides support across the surface of the load material. The support a pad frame provides depends on the quantity of pads, the distance between the pads and the allowable overhang for the material in question.

pad spread: the maximum width and length of the pad frame when measured to the outer edges of its vacuum pads. Pad spread determines the minimum load dimensions and, when considered along with the allowable overhang, the maximum load dimensions that can be lifted using a particular below-the-hook vacuum lifter.

parking stand / control handles: available on certain Wood’s Powr-GripTM flat lifters, specialized handles on the pad frame that lock in three positions, to provide control handles during lifter operation or parking stands, when the lifter is not in use.

pendant: see "movable control pendant".

per-pad capacity: the load capacity for an individual vacuum pad when used on a multi-pad vacuum lifter with variable capacity. Features such as individual pad shutoffs and removable pad arms require the operator to calculate maximum load capacity, based on the number of pads in use and the per-pad capacity.

Pick-Up Stick: a specialized Wood's Powr-GripTM hand tool that uses vacuum to lift and hold small objects for precision handling.

polycarbonate: any of a category of plastics that are highly resistant to impacts (for example, see "accessory mount").

porous: permeable by air, usually due to the presence of pores or other tiny vessels inherent to a material (compare "nonporous"). Vacuum cups generally cannot attach to porous surfaces, and powered vacuum equipment can attach to porous surfaces only when specifically designed for such an application.

Positioner: a specialized Wood's Powr-GripTM product that uses vacuum to hold objects or materials in various positions while they undergo production operations. It features 360° continuous rotation and four tilt positions between upright and flat for virtually unlimited load manipulation.

power package: see "vacuum generating system" and "vacuum package".

power rotation: rotation in which load movement is accomplished using a powered mechanical device, such as an electric motor or compressed air cylinder, thus eliminating manual effort (compare "manual rotation").

power system: see "standard operating power" and "vacuum generating system".

power tilt: tilt in which load movement is accomplished using a powered mechanical device, such as an electro-mechanical actuator or compressed air cylinder, thus eliminating manual effort (compare "manual tilt").

power unit: see "vacuum generating system" and "vacuum package".

Powr-Frame: a kind of Wood's Powr-GripTM below-the-hook vacuum lifter that features 90° manual tilt and 180° manual rotation, as well as a powered vacuum generating system.

pre-pay: the status of an account which requires the entire invoice amount to be paid before any order is shipped.

proposal drawing: an engineering drawing that represents a proposed product design, which normally accompanies a price quotation in order for the customer to decide whether to place an order.

psi: an abbreviation for pounds per square inch, a common American measurement of air pressure. An equivalent metric value normally is expressed in kilopascals: 1.00 psi = 6.89 kPa.

pump: see "vacuum pump" and "venturi".

Quadra-Tilt: a kind of Wood's Powr-GripTM below-the-hook vacuum lifter that features a four-bar tilt linkage (also known as assisted manual tilt), which significantly reduces the operator effort required to tilt a load.

quick connect: a type of air-line fitting that can be connected or disconnected rapidly without the aid of tools, which is used on certain Wood's Powr-GripTM below-the-hook vacuum lifters for connecting to a compressed air source, or to allow the removal of pad arms or pad frame sections.

release time: the number of seconds required for the vacuum pad(s) of powered vacuum equipment to disengage from a contact surface (compare "apply time").

removable pad arms: available on certain Wood's Powr-GripTM below-the-hook vacuum lifters, pad arms which can be attached or removed from the pad frame. By changing the effective pad spread and load capacity, removable arms enable a lifter to handle loads with different dimensions and weights.

repair: (1) action taken to correct a deficiency in a customer-returned product; (2) a customer's vacuum cup or equipment product that receives factory service to correct a deficiency (compare "exchange"; see "Exchange and Repair Service").

Rigid Handle: a kind of Wood's Powr-GripTM lifting cup that features an offset, fixed handle, to prevent the load from swinging or changing orientation during the lift.

rotate: see "rotation".

rotation: a kind of load movement in which the load turns edgewise on a point in a vertical plane, up to 90°, 180° or 360° (depending on the lifter's capability).

rough: used to describe coarse textured or irregular contact surfaces. Most vacuum pads are designed to attach to relatively smooth surfaces, unless they possess special rubber compounds or foam rings capable of conforming to rough surfaces (compare "smooth").

SCFM: an abbreviation for standard cubic feet per minute, a common American unit for measuring volume of airflow. An equivalent metric value normally is expressed in liters per minute: 1 SCFM = 28.3 liters/minute.

sealing edge: one or more circular ridges or surfaces located on the face of the vacuum pad which enable it to form a seal against the contact surface (see "vacuum").

ship-hold: the status of an account which requires any current order to be held, pending payment of an outstanding balance.

shutoffs: see "individual pad shutoffs".

sliding (adjustable) pad mounts: available on certain Wood's Powr-GripTM below-the-hook vacuum lifters, specialized mounts which allow vacuum pads to be repositioned at various locations on the pad frame, as follows: Although all of these mounts slide along the pad frame, the standard sliding pad mount is secured at predetermined locations using a cotterless hitch pin; whereas the sliding adjustable pad mount employs a clamping mechanism to secure the mount, allowing for infinitely variable positioning. By changing the effective pad spread, sliding pad mounts enable a lifter to handle loads of various dimensions.

slow-to-pay: the status of an account in which an outstanding balance has not been paid during the time period specified under the terms of agreement.

smooth: used to describe contact surfaces free from rough or patterned textures. Most vacuum pads are designed to attach to relatively smooth surfaces, unless they possess special rubber compounds or foam rings capable of conforming to rough surfaces (compare "rough").

special: a product that is custom-designed for a specific customer application (compare "standard").

spring-shaft pad mounts: available on certain Wood’s Powr-GripTM flat lifters, specialized mounts which place the vacuum pads on the end of shafts that travel upward and downward on a spring-loaded suspension. These mounts help to compensate for load deflection, as well as providing numerous other advantages over standard pad mounts.

standard: a product that features a standardized design, facilitating production line manufacturing and shorter lead times (compare "special").

standard operating power: the type(s) of operating power that a specific vacuum equipment product is designed to utilize (see "operating power").

standard pad spread: the pad spread of the standard version of a specific below-the-hook vacuum lifter.

Stowaway Tilt Table: a kind of Wood's Powr-GripTM glass cutting table that can tilt loads to an upright position or fold to a compact profile, in order to be stored or transported.

suction: see "vacuum" and "vacuum flow".

suction cup: see "vacuum cup" and "vacuum pad".

surface finish: see "contact surface", "rough" and "smooth".

telescoping pad arms: available on certain Wood's Powr-GripTM below-the-hook vacuum lifters, pad arms which extend outward from the pad frame. By changing the effective pad spread, telescoping arms enable a lifter to handle loads of various dimensions.

Tie-Down: a kind of Wood's Powr-GripTM vacuum cup that features a tie-down bail, for use as a temporary attachment point in securing loads.

tilt: a kind of load movement in which the load pivots up to 90° on an axis, in one direction, between horizontal and vertical planes (compare "tilt cycle").

tilt cycle: tilt movements in which the load pivots 90° in both directions, thereby returning to its starting position (compare "tilt").

tilt duty: the maximum number of tilts per hour that a vacuum equipment product is rated to perform.

tilt speed: the time in seconds required for a vacuum equipment product to accomplish one tilt movement.

upright handling: a kind of load movement in which the load is aligned with a vertical plane (compare "flat handling").

upright horizontal: a load orientation term referring to rectangular sheet materials that are oriented in a vertical plane with the long dimension running horizontally (compare "upright vertical").

upright vertical: a load orientation term referring to rectangular sheet materials that are oriented in a vertical plane with the long dimension running vertically (compare "upright horizontal").

vacuum: the absence of matter, including air and other gas, from a particular space. When a vacuum is formed by attaching a vacuum pad to a contact surface and pumping out the air inside, atmospheric pressure on the outside holds the pad in place with incredible force.

Vacuum Base Drill Stand: a specialized Wood's Powr-GripTM product that combines a press for hand-held drills and a base that uses vacuum to attach directly to the material being drilled.

vacuum cup: a hand tool that uses vacuum to lift and carry loads (see "hand cup") or to secure loads (see "mounting cup").

vacuum equipment: any of a wide variety of manual and powered products, especially below-the-hook vacuum lifters, that employ vacuum to lift or secure a load.

vacuum flow: airflow used to produce vacuum in a vacuum system. As the leakage rate increases in a vacuum system, the airflow must increase to sustain a vacuum.

vacuum generating system: the collective components that a vacuum equipment product employs to receive energy from a power source and use it to generate vacuum flow.

vacuum indicator: any gauge or other device which indicates the current vacuum level to the user of a vacuum cup or equipment product.

vacuum level: a measurement of the difference between air pressure inside and outside a vacuum system, as registered on a vacuum gauge or other metering device. This measurement indicates the degree to which a complete vacuum is achieved in a vacuum system (see "vacuum").

vacuum lift light: see "green lift light".

vacuum lifter: any of a variety of hand cups or below-the-hook lifters that employ vacuum to grip and lift loads.

vacuum loss warning buzzer: available on certain Wood's Powr-GripTM below-the-hook vacuum lifters, a battery-powered warning device which sounds an audible alarm if the vacuum level falls below lifting requirements.

vacuum mount: see "mounting cup".

vacuum package: a complete Wood's Powr-GripTM vacuum generating system, available for use as a replacement item or in OEM applications.

vacuum pad: the rubber part of a vacuum cup or equipment product which, when evacuated, attaches to a contact surface by forming a seal against it (also known as a suction cup).

vacuum pump: a mechanical device that generates vacuum. Varieties include manual and AC, DC or air-powered types.

vacuum system: (1) the hoses, fittings, reserve tank and any other components of a vacuum equipment product that collectively comprise a sealed system in which vacuum is generated and maintained (see "vacuum" and "vacuum level"); (2) a short form of "vacuum generating system".

vacuum transducer: see "venturi".

Valve Grinder: a specialized Wood's Powr-GripTM hand tool that uses vacuum to hold engine valves for lapping.

venturi power: see "compressed air power" and "venturi".

venturi: a kind of pump that uses compressed air power to induce vacuum flow (also known as vacuum transducer).

Vertical Handle: a kind of Wood's Powr-GripTM lifting cup that features a vertically oriented handle (i.e., when attached to horizontally oriented surfaces), for use in replacing windshields and similar applications.

Vertical Lift Gentle Giant: a kind of Wood's Powr-GripTM below-the-hook vacuum lifter, for use in upright handling of large-dimension glass and similar loads.

warning buzzer: see "vacuum loss warning buzzer".

warranty: (e.g., warranty repair) used to describe product repairs or replacement items which are covered under warranty, at no charge to the customer (compare "billable" and "customer service").


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