Laboratory Ovens Specifications

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Specifications


	Temperature Range		Maximum temperature at which the unit may operate and still maintain rated performances.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Capacity:		Capacity of heated interior space of the unit.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Pressure Range		The pressure range through which the unit can operate.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

Type / Configuration


	External Configuration
	Your choices are...
	Bench / Cabinet		Cabinet or bench units describe small batch equipment typically mounted on an integral floor stand. Batch units are typically suited for processing small batches.
	Continuous (Convey, Shuttle)		In general, continuous units tend to be oriented toward automated production for large quantities of small-to-medium-sized products. The type of conveyance system used (direct-through conveyors or back-forth shuttles), depends upon the product line, volume of work to be produced, and required temperature.
	Front Load (incl. Walk-in, Truck-in)		Front loading units allow side entry to the heating area for batch processing. They are often walk-in or truck-in ovens with double doors, carts, shelves, etc. Batch units are typically suited for processing larger quantities of material in a single batch.
	Vertical Load (Bell Lift)		A vertical loading unit is a space-saving configuration where entry is gained from a platen that is either raised into the heating area or, as in a bell-lift configuration, the heating area is lowered onto a platen.
	Top Load (Crucible, Melting)		In top loading units, the material is placed down into the heating area. A crucible may be used to convey the material and the unit will likely have a cover.
	Box		An oven in which the heating is indirect; the material to be heated is contained in a container heated from the outside.
	Other		Other unlisted, specialized, or proprietary configuration.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Features


	Features
	Your choices are...
	Cooling System		An integrated cooling system aids in bringing the interior temperature of the oven down quickly to facilitate entry, cleaning, inspection, etc. This may be performed with or without the heated media inside.
	Shelving / Racks / Carts		Shelves are available in several configurations. Typically shelves rest on rails that are attached to the side of the oven via keyhole slots. As a variation on this theme, roller shelves, which allow the load to be moved in and out of the oven with minimal effort, can be used. Roller shelves also are useful when product has to be picked up with an overhead hoist or crane. For truck-in or walk-in style units, carts typically come in three configurations: shelf, hanging, or flatbed. Each style can be rated to different weights for varying processes, and each style tends to be more compatible with a particular airflow.
	Air Filtration		The oven includes an air filtration system to remove impurities in the airflow.
	Timers		The unit has a timer that may be used for process or to automate turn-on and shutdown timing.
	Alarms		The unit has integral alarms that ring, flash, or otherwise display information when temperature setpoints are exceeded or missed.
	Logging / Recorder Options		The unit includes a data logger or chart recorder for monitoring operational history.
	Explosion Proof		The oven is constructed to minimize the dangers of exploding media within, due to extreme temperatures.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Heating and Control


	Heat Source / Transfer:
	Your choices are...
	Arc		An arc between graphite electrodes and metal generates heat. Both carbon and alloy steels are produced in electric arc furnaces. Scrap, rather than molten metal, is used as the base material.
	Combustion		Ovens and kilns using heat generated by combustion of gas, oil, biomass, waste products or other fuels. The combusted gas may heat the material being processed directly or indirectly.
	Electric / Resistance		Oven heat source is powered by electricity - typically utilizing existing factory voltages.
	Indirect / Contact / Conduction		Walls, tubes, jackets, or discs are heated by steam, gas, thermal oil, or hot air. These heated elements transfer their heat to materials that come in contact with them via conduction.
	Induction		Induction is a widely used process for the surface hardening of steel. The components are heated by an alternating magnetic field to a temperature within or above the transformation range followed by immediate quenching. The core of the component remains unaffected by the treatment and its physical properties are those of the bar from which it was machined, whilst the hardness of the case can be within the range 37/58 Rc. Carbon and alloy steels with carbon content in the range 0.40-0.45% are most suitable for this process.
	Infrared / Radiant		Ovens or kilns using radiant heat generated by electric or gas fired infrared heaters. Radiant heat units are useful for processing surfaces, flat products or web materials where clear line of sight can be provided.
	Natural Gas		Oven heat source is powered via natural gas.
	Propane		Propane, sometimes indicated as liquefied petroleum (LP), is a catchall term for propane, butane, and mixtures of the two. It also includes propylene and butylene, which are sometimes included in blends, mostly outside the United States and Canada. In North America, propane is the most likely to be available in industrial quantities. Nearly any natural gas burner will operate on propane with little or no sacrifice in performance.
	Oil		Oven heat source is powered by oil heaters.
	RF / Microwave / Dielectric		In a radio frequency drying system, an RF generator creates an alternating electric field between two electrodes. The material to be processed is conveyed or placed between the electrodes where the alternating energy causes polar molecules in the material to continuously reorient themselves to face opposite poles, much like the way bar magnets behave in an alternating magnetic field. The friction resulting from molecular movement causes the material to rapidly heat throughout its entire mass. Areas in the material with greater moisture content heat up and dry faster.
	Steam		Oven heat source is steam, typically tapping off existing factory steam lines.
	Other		Other unlisted or proprietary heat source.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

	Controller Type:		Ovens may have either a single set point or a programmable controller to adjust temperature and temperature stability.
	Your choices are...
	Single Set Point		Oven has a specific temperature point to reach upon activation.
	Programmable		Oven may be programmed to reach different temperatures at different time intervals.
	Search Logic:		Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches.

	Atmosphere
	Your choices are...
	Air / Oxidizing		Thermal processing system employing an air or oxidizing atmosphere.
	Inert		Thermal processing system employing an inert gas such as argon as an atmosphere or shielding blanket.
	Reducing		Thermal processing system employing a reducing gas such as hydrogen an atmosphere.
	Salt Bath		Thermal processing system using a molten salt bath to maintain a consistent thermal profile for heat treatment, deposition of coatings or surface cleaning.
	Vacuum		Normally when the word vacuum is used it refers to any absolute pressure below that of normal atmospheric pressure. Atmospheric pressure is defined as 14.6 psia or 760 torr--any pressure less than this is considered a vacuum. In a vacuum furnace, the heat-treating process takes place inside a vessel that is airtight. This allows a vacuum to be drawn inside the vessel. The entire heat-treating process can take place under vacuum or in a precisely controlled atmospheres. Heat treating under vacuum can prevent surface reactions (oxidation or decarburization); remove surface contaminants, such as oxide films and residual traces of lubricants; add a substance to the surface layers of the work; and remove dissolved contaminating substances from metals by means of degassing.
	Other		Other unlisted or specialized atmosphere type.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Application / Industry


	Application:
	Your choices are...
	Aging		Aging describes a time/temperature-dependent change in the properties of certain alloys.
	Annealing		Annealing is used to treat work-hardened parts made out of low-carbon steels (< 0.25% carbon). This allows the parts to be soft enough to undergo further cold-working without fracturing.
	Baking		Baking involves heating to a low temperature in order to remove entrained gases.
	Brazing / Soldering		Brazing is a method of joining metal parts together by fusing a layer of brass between the adjoining surfaces. A red heat is necessary, and a flux is used to protect the metal from oxidation.
	Burn-off		Burn-off removes cured paint, epoxies, and plastics from metal parts and other materials.
	Curing		Curing induces chemical or physical changes by heating media.
	Drying		Drying uses temperature to remove moisture from an object within an oven/furnace.
	Firing / Sintering		Firing/sintering bonds adjacent surfaces of particles in a mass of powder or compact by heating. Sintering strengthens a powder mass and normally produces densification and, in powdered metals, recrystallization.
	Foundry / Melting		Foundry units are used for metal melting applications for jewelry manufacturing, mining, die casting operations, production aluminum foundries, and fine arts studios. They typically have a tilting mechanism, which can be manually operated (e.g., handwheel) or powered (e.g., hydraulic tilt).
	Heat Treating		Heat treating is a combination of heating and cooling operations applied to a metal or alloy in the solid state to obtain desired conditions or properties. Heating for the sole purpose of hot-working is excluded from the meaning of this definition.
	Hot Pressing		Hot pressing is a method used to densify a material, whereby heat and pressure are applied simultaneously and the pressure is typically applied unidirectionally via rigid tooling.
	Industrial		Industrial ovens are typically either batch or continuous process insulated enclosures or tunnels used for thermal processing.
	Preheating		Heating to an appropriate temperature immediately prior to austenitizing when hardening heavy sections or high hardenability constructional steels.
	Quenching		Ovens used for rapid cooling of heated media, quenching furnaces are typically identified by the more specific technology utilized: direct quenching, fog quenching, hot quenching, interrupted quenching, internal quenching, selective quenching, slack quenching, spray quenching, and time quenching.
	Sterilizing		The oven may be used to heat objects to temperatures high enough to kill bacteria and germs.
	Other		Other unlisted, specialized, or proprietary applications.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Laboratory Ovens Specifications

Temperature Range:

Capacity:

Pressure Range:

External Configuration:

Features:

Heat Source / Transfer:

Controller Type:

Atmosphere:

Application:

Help with Laboratory Ovens specifications: