
Lindberg/MPH announced the shipment of one electrically heated mesh belt conveyor furnace to the manufacturing industry. This furnace is configured for process applications requiring a hydrogen process atmosphere in the heating section muffle.
The belt width is 9 inches and heat length is 6 feet. There are 4 temperature control zones and 6 feet of water-cooled sections. The atmosphere includes hydrogen and nitrogen for different processes. There is a load and unload table of 32 inches with 24 inches of exposed belt. Overall, the furnace is 304 inches long by 40-3/4 inches wide by 79 inches high.
The temperature ratings of the furnace vary on zone. Zone #1’s operating temperature is 750°C (1382°F) maximum, while zone #2 through #4’s operating temperature is 1000°C (1832°F) maximum.
“This furnace has four zones that are individually temperature controlled. Zone 1 is 12 inches, Zone 2 is 24 inches, Zone 3 is 24 inches, and Zone 4 is 12 inches. Multi-zone configurations of the heated sections facilitate easy time/temperature profile adjustments, as well as allowing the heating section to be tailored to almost any time/temperature profile requirement.”
– Bill St. Thomas, Business Development Manager
Unique features of this conveyor furnace include:
- Copper tube atmosphere piping
- Swagelok tube fittings
- Nitrogen purge chambers
- Furnace muffle
- Eurotherm Model 3216
- Eurotherm Model 3216i
- Solid state, closed loop, belt drive control
- Zero-Fired solid state relay heating circuit power controllers
- Platinel II thermocouples
#232817
Lindberg/MPH announced the shipment of one electrically heated spray washer to the defense industry. This spray washer is designed as a companion to a heat-treating process, washing the parts prior to and/or after heat treating.
The chamber within is designed to accept a standard load with dimensions of 30” wide by 48” deep by 30” high including a clearance for loading the baskets or fixtures. The maximum operating temperature is 185°F and the normal operating temperature is 160°F.
The spray chamber/solution tank shell is manufactured from 7-gauge 304 stainless steel and welded watertight. The spray chamber has multiple wide range, full cone spray nozzles located above and on both sides of the workspace area to provide a faster and more thorough cleaning of the entire load.
“This spray washer is similar to a Lindberg/MPH unit already installed at their facility. We made sure that this washer would integrate seamlessly into their heat treat process. This spray washer features modern control systems, including a Eurotherm temperature controller and a magnetic contactor.”
– Bill St. Thomas, Business Development Manager
Unique features of this spray washer include:
- Re-circulation pump with a 7-1/2 HP motor
- 450 GPM flow
- Gravity roller deck
- Pneumatically operated vertical lift door plate
- 550-gallon capacity solution tank
- Removable and washable wire screen type filter
- Weir type skimmer box
- Surface mounted blow-off pipe
- Pre-wired control enclosure
#232609
Lindberg/MPH has an 1100°C large Chamber utility box furnace in stock that is available for immediate shipment. The utility box furnace provides flexible, efficient performance in a variety of heat-treating applications. The insulation and heating elements maintain uniform heat distribution and a vertical lift door provides easy access.
- Model Number: 52561VLD
- Job Number: 232145
Equipment Specifications
- Max Temp: 1100°C
- Chamber Dimensions: 24″ W x 36″ D x 18″ H
- Voltage: 240V 3Ph 60 Hz
- KW: 20KW
Furnace Features
- Vacuum formed ceramic fiber insulation with low heat loss for operating economy and minimum heat storage for rapid heat up and control response
- Double steel shell construction assures a low temperature outer surface
- Refractory hearth plate
- Heated by retained alloy resistor elements
- Air cylinder operated, vertical lift door limit switch for power cutoff when door is open
Control Features
- Pre-wired, side mounted, forced air cooled control console
- Eurotherm Nanodac programmable temperature controller with digital chart recorder
- Multiple outputs, along with Ethernet (Modbus TCP slave) communications
- SSR solid state power control module
- Excess temperature controller
- Dual thermocouple assembly
- Power circuit breaker
- Control Panel is included
- Manufactured Date: September 2020
Lindberg/MPH has an electrically heated atmosphere pit furnace with retort and fan in stock that is available for immediate shipment. This pit furnace delivers high efficiency in single and multiple zone heating. A motor driven fan recirculates protective gases through the retort.
- Model Number: 12-RO-2436-18ARF
- Job Number: 231976
Equipment Specifications
- Max Temp: 2000° F
- Chamber Dimensions: 24” Dia x 36” D
- Workspace: 9.4 ft3
- Max Gross Workload: 1650 lb
- Voltage: 480V 3Ph 60 Hz
- KW: 62KW
- Designed for hydrogen atmosphere
Furnace Features
- Vacuum formed ceramic fiber insulation with low heat loss for operating economy and minimum heat storage for rapid heat up and control response
- Double steel shell construction assures a low temperature outer surface
- Heated by retained alloy resistor elements
- Two (2) atmosphere retorts with workload support grid
- Load station
- Air cooling / unload station
Control Features
- NEMA 12 control enclosure
- Programmable temperature controller
- High limit controller with manual reset
- SCR controls
- Excess temperature controller
- Dual thermocouple assembly
- Control Panel is included
- Manufactured Date: October 2020
Lindberg/MPH announced the shipment of an electric atmosphere continuous mesh belt conveyor furnace to a microelectronics manufacturer in the United States. This continuous belt conveyor furnace is configured for process applications requiring a nitrogen/hydrogen blend process atmosphere in the heating section muffle at process temperatures up to 1000°C. The combustible gas system provides a timed nitrogen gas purge of the muffle before process gas can be introduced into the furnace muffle.
The overall size of the furnace is 201 inches by 40.75 inches by 52 inches with an exhaust height of 84 inches. The furnace has 4 feet heated section and 24” copper tubing wrapped water-cooling chamber plus an additional 12 inches of copper tubing wrap cooling on the exit purge chamber.
“This equipment is based off of a standard Lindberg/MPH Model 830MT Continuous Mesh Belt Conveyor Furnace with alterations made to the customer’s specifications in regard to equipment work height, overall length, and extending the muffle by six inches.”
– Bill St. Thomas, Business Development Manager
Unique features of this Conveyor Furnace include:
- 4 feet of heat in 4 temperature control zones
- 2 feet of water-cooled section plus 12” water cooling on exit purge chamber
- 1.5 to 15 inches per minute belt speed range
- HMI touch screen
- Programmable Logic Control of temperature, belt speed, and electronic flow controls
- Inconel sheathed Chromel Alumel thermocouples
- Balance weave Ni-Chrome V alloy belt
- Emergency equipment power off pushbutton
#230871
Lindberg/MPH announced the shipment of a Mesh Belt Conveyor furnace to the electrical and electronic manufacturing industry. This furnace is electrically heated, has an argon process atmosphere, and a full muffle design. This model is designed with a maximum temperature of 1100ºC. The total equipment input is approximately 9kW. The atmosphere piping is copper tubing and utilizes Swagelok tube fittings. The purge chambers are located at the entrance and exit ends of the furnace, containing a removable baffle tray assembly. The overall dimensions of furnace & stand are 128 inches long by 22 inches wide by 59 inches high.
The heated section of the furnace utilizes molded ceramic fiber embedded resistance heating element modules with heat barriers located between each heating zone. This construction provides enhanced heating uniformity and thermal isolation for profile enhancement and flexibility.
“This electrically heated mesh belt conveyor furnace has a similar footprint to a model that we provided this customer back in 2013 but this particular model has been adjusted to specifically fit their needs. The furnace was built with an argon atmosphere and customized belt width, speed, heat and cool lengths.”
– Bill St. Thomas, Business Development Manager
Unique features of this Electrically Heated Mesh Belt Conveyor Furnace include:
- Adjustable proportioning valve to control discharge water temperature
- Four temperature control zones
- Belt speed of 1 to 10 inches per minute
- RA330 Stainless steel alloy muffle
- Powder coated outer decorative panels
- Exclusive 1-Year Warranty
Posted on February 7, 2020
Lindberg/MPH announced the shipment of a gas fired nitriding pit furnace with built-in retort to the welding industry. This pit furnace is designed for single and two stage nitriding processes and post-oxidation applications. The design accepts either one-piece work baskets or retort baffle or nest trays. The gross load capacity is 5,000 lbs. at 1200°F and the furnace chamber has a diameter of 38” and is 90” tall. The furnace is designed to produce laminar air flow to obtain the required +/- 15°F temperature uniformity.
The nitriding gas flow control system is a fully integrated nitrogen/ammonia mixing system designed specifically for two stage nitriding operation. This system includes fully automatic recipe control with a unique profile-based recipe screens that make it simple to understand and program. The touchscreen display interface includes a paperless chart recorder that data logs the critical furnace parameters for quality control.
“This pit furnace is similar to a past order but altered to the customer’s exact specifications. The control system is a complete automated nitriding system that regulates temperature, time and atmosphere for the entire cycle.”
– Jason Dobberstein, Senior Applications Engineer
Unique features of this Gas Fired Nitriding Pit Furnace include:
- “Armor plate” alloy lined steel shell
- Fabricated Inconel 600 alloy retort
- Pneumatically operated cover lift with a 3-way hand control valve
- Forced cooling system
- Lindberg Model combination gas fired Ammonia Dissociator
- Electrically latched, manual reset valve
- Direct logic PLC controller
- Combustion air blower
- Exclusive 3-Year Warranty
#229901
Posted on January 21, 2020
Lindberg/MPH announced the shipment of an Electrically Heated Homocarb Pit Furnace to a manufacturer in the power industry. This pit furnace is designed with a maximum operating temperature of 1750°F and gross workload of 1600 lbs. Temperature uniformity of +/- 25°F at 1650°F was documented with a 9-point profile test.
The furnace can accommodate a work basket with a 25″ diameter that is 48″ deep providing a clear work volume of 13.64 ft3. A retort minimizes atmosphere consumption and furnace conditioning time between loads. The cover lid utilizes an electrically operated boom lift which provides ease of loading and unloading. An upper furnace fence guard was also installed on the furnace to provide added safety.
This pit furnace is designed with the capability to use Homocarb fluid for the furnace atmosphere. It is also designed with a forced cooling system which accelerates cooling of the load while still under a protective atmosphere.
“The Homocarb Fluid Atmosphere system pumps the Homocarb Fluid through a furnace inlet tube to a heated target suspended from the cover inside the furnace chamber. This ensures that the fluid is dissociated to create the furnace atmosphere before it comes into contact with the customer workload.”
– Bill St. Thomas, Business Development Manager
Unique features of this Lindberg/MPH Homocarb Pit Furnace include:
- Circulation fan for optimum atmosphere and heat distribution
- Temperature uniformity of +/-25°F at 1650°F
- Refractory lining featuring thermally efficient ceramic fiber insulating modules
- Retort to contain process atmosphere
- Homocarb fluid atmosphere capability
- Electrically operated cover lift
- Upper furnace fence guard
#230359
Posted on December 19, 2019
Lindberg/MPH announced the shipment of two Electrically Heated Atmosphere Pit Furnaces the automotive industry. The nitrogen atmosphere pit furnaces will be used for heat treating automotive parts.
The two pit furnaces utilize high velocity forced convection heating systems inside an atmosphere tight retort chamber and have a maximum operating temperature of 1250°F. The work chamber is approximately 50” in diameter and 60” deep. The overall dimensions are 101” wide by 90” long by 148” high with a working height of 110”. The maximum load gross weight is 10,000 lbs.
The atmosphere tight furnace retorts are interior chambers that contain the nitrogen atmosphere and workload within a cylindrical shell that has a solid bottom and sealing trough at the top. The systems also feature forced cooling systems to accelerate the furnace cooling cycle while the load is under nitrogen atmosphere.
“Pit furnaces provide customers with the ability to process large product loads. These furnaces also feature forced cooling to reduce cycle times and further increase production rates.”
– Kelley Shreve, Applications Engineer
Unique features of these Lindberg/MPH nitrogen atmosphere pit furnaces include:
- Eurotherm programmable temperature controller
- Motorized butterfly valves and air blowers in the forced cooling system
- Nitrogen pressure reducing regulator and 2-manually adjusted flowmeters
- Electrically operated boom lift cover lid
- Alloy propeller furnace fan with high efficiency 3-HP motor
- Helical coiled Ni-chrome heating elements
- Thermal efficient ceramic fiber insulating modules
#230560-61
Posted on August 19, 2019
Lindberg/MPH supplied an integrated three chamber furnace to a hot stamping company in Grand Rapids, MI. The unique stacked design of this furnace offers a significantly smaller footprint compared to a continuous system. A recent video of the installed furnace shows the integration with a robotic transfer system and a hydraulic press. This hot stamp furnace features three independent chambers which allows for multiple blanks to be preheated simultaneously resulting in reduced cycle times.
Check out the full video on YouTube and to learn more about our hot stamping furnaces, visit our website, /heat-treat-furnaces/hot-stamping-press-hardening-furnace.