A QUICK TRIP TO DETROIT AND A GLIMPSE OF ADDITIVE’S NEXT CHAPTER Thomas Schultz, our Sales Manager, returned from attending […]
Attending RAPID + TCT 2025: Heat Treating the Future of 3D Printed Metals
Category: Blog
L&L Ships Second FB435 Model to Doncasters for Enhanced Production
New Furnace to Support Annealing, Tempering, and Heat Treatment of Steel and Castings L&L Special Furnace is pleased to announce […]
L&L DELIVERS COMPACT DUAL CHAMBER FURNACE
FOR IN-HOUSE SUPPORT OF SNAP-ON PRODUCTION LINE L&L Special Furnace, a leader in high-quality heat-treating furnaces, is proud to announce […]
L&L SPECIAL FURNACE COMPANY SHIPS LARGE BOX FURNACE
FOR HEAT-TREATING DEPARTMENT IN INVESTMENT CASTINGS COMPANY L&L Special Furnace company recently delivered a large floor-standing box furnace to the […]
L&L Special Furnace Company Ends an Impressive 2023 Calendar Year
Receives Two Large Box Furnace Orders L&L Special Furnace Company recently obtained an order for two large front-loading box furnaces […]
PRODUCT SPOTLIGHT: L&L Special Furnace Model VBA for Use with Additive Manufacturing
Introduction L&L Special Furnace Co., Inc.’s Sales and Engineering department was approached by a customer in the Additive Manufacturing (AM) […]
PRODUCT SPOTLIGHT: XLE Series Box Furnaces
Widely Adaptable for Many Different Thermal Applications Since making its initial appearance in the early 1980s, L&L Special Furnace Co.’s […]
PRESS RELEASE: L&L Ships An Atmosphere-Controlled Retort Furnace For Ceramic Composite Applications
L&L Special Furnace has delivered one of two model XLC3348 furnaces to a leading manufacturer of aerospace components in the […]
PRESS RELEASE: L&L Special Furnace Ships Retort Furnace to Motor Manufacturer Used for Heat Treating Motor Laminations
L&L Special Furnace has shipped a model XLC3348 retort furnace with an Inconel 602CA alloy retort to a leading manufacturer […]
PRESS RELEASE: L&L Special Furnace Ships an Agitated Heated Oil Quench Tank
L&L Special Furnace Ships an Agitated Heated Oil Quench Tank Used for Quenching Various Tool Steels L&L Special Furnace has […]
PRESS RELEASE: L&L Ships Fiber-Lined Box Furnace to a Titanium Steel Castings Manufacturer
L&L Ships Fiber-Lined Box Furnace to a Titanium Steel Castings Manufacturer for Aerospace and Gas Turbine Casting Applications L&L Special […]
PRESS RELEASE: MRO Distributor Purchases Small Bench-Top Furnace Used for Laboratory Samples and General Heat-Treating
L&L Special Furnace has delivered a highly uniform box furnace to a distributor of equipment to maintenance repair and overhaul […]
PRESS RELEASE: Dual-Chamber Electric Box Furnace for Heat-Treating Shop in Manufacturing Facility
L&L Special Furnace Co. has shipped a dual-chamber heat-treating and tempering furnace to a leading global manufacturer of shopping carts […]
PRESS RELEASE: L&L Special Furnace Co., Inc. Announces New Ownership
It is with great excitement that we are announcing a change in ownership of L&L Special Furnace Co., Inc. Beginning […]
PRESS RELEASE: L&L Ships an Atmosphere-Controlled Retort Burn-Off Furnace for Ceramic Matrix Composite Applications
L&L Special Furnace Company, Inc. has delivered a Model XLC3672 to a Midwest manufacturer of ceramic matrix parts (CMCs). CMCs […]
PRESS RELEASE: L&L Commissions High-Temperature Box Furnace for Ceramic Composite Parts
L&L Special Furnace Company, Inc. has shipped and commissioned a large high-temperature box furnace to a Midwestern U.S. plant starting […]
PRESS RELEASE: Electrical Box Retort Furnaces For De-Bindering Ceramic Composites
L&L Special Furnace Co., Inc. has received an order for two atmosphere-controlled retort box furnaces used for de-bindering ceramic matrix […]
PRESS RELEASE: L&L Receives Orders for a Floor-Standing Heat-Treating Furnace and a Large Fiber-Lined Furnace
L&L Special Furnace Company recently received orders for a floor-standing box furnace for heat-treating saw blades along with a large […]
PRESS RELEASE: L&L Ships Box Furnace to Valve Manufacturer for General Heat-Treating
L&L Special Furnace Co., Inc. has delivered a high-uniformity box furnace to a worldwide, leading valve manufacturer located in the […]
PRESS RELEASE: L&L Special Furnace Company Ships Large Car-Bottom Furnace Used for Heat-Treating Steel Pipes and Fittings
L&L Special Furnace Co., Inc., has shipped a large gas-fired normalizing furnace to a worldwide manufacturer of pipes, tubes, and […]
PRESS RELEASE: ORDER FOR 10 LAB-SCALE BOX FURNACES FOR PRECIOUS METAL RECOVERY
L&L Special Furnace Co., Inc. has received an order for 10 model GS1714 general-purpose, bench-top lab furnaces. These furnaces will […]
Nitrocarburizing and Carbonitriding
Which hardening process is right for your next project? Nitrocarburizing and carbonitriding represent two case-hardening techniques commonly used today. But […]
PRESS RELEASE: FLOOR-STANDING, HIGH-TEMPERATURE BOX FURNACE
L&L Special Furnace Co., Inc. has shipped a floor-standing, high-temperature silicon carbide furnace to a leading worldwide supplier of high-temperature […]
Heat Treating Aerospace Motor Laminations
Motor laminations are thin metal sheets that are stacked together to create the core of an electric motor’s stator and […]
PRESS RELEASE: L&L SHIPS BOX FURNACE ON A TIGHT SCHEDULE FOR CERAMIC APPLICATIONS
L&L Special Furnace Co., Inc., has delivered a high-uniformity box furnace to Soil Lab, a community-based workshop based in Chicago, […]
The Benefits of Powder Metallurgy Manufacturing
While traditional forms of metal manufacturing like forging and casting have been around for hundreds of years, there are some […]
PRESS RELEASE: BENCH-MOUNTED BOX FURNACE USED FOR LABORATORY TESTING OF SILICA AND QUARTZ PRODUCTS
L&L Special Furnace Co., Inc. has shipped a second bench-mounted box furnace to a worldwide leading manufacturer of high-purity fused […]
PRESS RELEASE: ORDER FOR GAS-FIRED, CAR BOTTOM FURNACE FOR HEAT-TREATING STEEL PIPE AND FITTINGS
L&L Special Furnace Company has received an order for a large gas-fired, car bottom furnace from a leading manufacturer of […]
Crystalline Structures of Heat-Treated Steel
The beauty and elegance of heat-treated steel don’t stop at the metal’s surface; they can also be seen in the […]
Heat Treatment for the Automotive Industry
Automotive heat treatment is essential for maintaining the structural integrity of modern cars. Metal components vary in type and quality, […]
One to Two Week Furnace Delivery from L&L Special Furnace!
Bring Your Heat Treat In House NOW! Don’t Get Caught Flat Footed When Your Business Heats Up!
PRESS RELEASE: ELECTRIC BOX FURNACE FOR CERAMIC AEROSPACE COATINGS ON STEEL
L&L Special Furnace Company has shipped a floor-standing box furnace used for ceramic coating applications in the aerospace industry to […]
Aluminum Heat Treatment: Homogenizing
If you own a manufacturing business that produces aluminum parts that require heat treatment, it’s important that you use the […]
PRESS RELEASE: L&L SHIPS SECOND FLOOR-STANDING BOX FURNACE TO CERAMIC OPTICAL LABORATORY
L&L Special Furnace Company has shipped a second floor-standing box furnace for heat-treating ceramics and optics used in the medical […]
L&L Special Furnace Featured in Thermal Processing
With a decades-long reputation for designing special industrial furnaces, ovens, kilns, quench tanks, and heat-treating systems, L&L Special Furnace Co., […]
Heat Treating Gun Parts
Heat treatments are vital to the manufacturing of both firearms and their ammunition. Many gun parts require heat treatments as […]
PRESS RELEASE: BRICK DIE MANUFACTURER ORDERS TWO GS2026 FURNACES TO INCREASE PRODUCTION
L&L Special Furnace Co., Inc. has shipped two Model GS2026 heat-treating furnaces to a manufacturer of brick dies, textured stucco […]
PRESS RELEASE: L&L RECEIVES SECOND ORDER FOR MEDIUM-SIZED BOX FURNACE
L&L Special Furnace Company has received a second order for a medium-sized floor-standing box furnace that will be used for […]
Solution Heat Treatment of Aluminum
When it comes to the heat treatment of Aluminum parts, solution heat treatment is one of the most common processes. […]
Powder Metal Injection Molding
Injection molding is one of the primary ways to manufacture parts out of powder metal. The main benefit of using […]
PRESS RELEASE: L&L SHIPS A LARGE, FIBER-LINED BOX FURNACE FOR A NEW AEROSPACE HEAT-TREATING FACILITY
L&L Special Furnace Co. has shipped a highly-uniform box furnace to a major aerospace manufacturer located in the southeastern United […]
Sintering Porous Powder Metal Parts
Using powder metal to manufacture components can be more cost-effective than other manufacturing methods. However, despite being cost-effective, using powder […]
THE QUARTERLY SPECIAL | Volume 2 Issue 1
PRECISION, UNIFORMITY, VALUE L&L Special Furnace Co, Inc. has a longstanding reputation for designing special industrial furnaces, ovens, kilns, quench […]
PRESS RELEASE: HIGH-TEMPERATURE ELECTRIC BOX FURNACE FOR HEAT TREATMENT OF HIGH TECH CERAMICS
L&L Special Furnace Co., Inc., has shipped a medium-sized, high-temperature box furnace to a government military defense organization located in […]
NFPA 86 Guidelines for Industrial Ovens and Furnaces
The National Fire Protection Association (NFPA) is an organization that promotes fire, electrical, and other hazard safety. One of the […]
Copper Brazing with a Hydrogen Atmosphere
Brazing copper in a hydrogen atmosphere is used for the creation of strong joints that can withstand high pressures and […]
Quenching Heat Treated Metals
Quenching is the rapid cooling of hot metal in a liquid or gas medium to preserve certain mechanical qualities it […]
Aluminum Heat Treatment: Precipitation Hardening
Precipitation hardening, also sometimes referred to as artificial aging, is a heat treatment process used to bring some aluminum alloys […]
PRESS RELEASE: BENCH MOUNTED, MULTIPURPOSE BOX FURNACES FOR GENERAL HEAT TREATMENT
L&L Special Furnace Co., Inc. has delivered three multipurpose GS2026 bench mounted box furnaces used to test high-temperature aerospace fasteners. […]
PRESS RELEASE: ELECTRICALLY HEATED PIT FURNACE USED SPECIFICALLY FOR ANNEALING AEROSPACE FASTENERS
L&L Special Furnace Co., Inc. has manufactured a fourth high-uniformity, pit-style furnace used for annealing. This furnace has been supplied […]
Steel Heat Treatment: Tempering Steel Alloys
Tempering is a heat treatment process by which steels (and other metals) are given more beneficial properties, usually involving the strengthening of the material.
Steel Heat Treatment: Carbonitriding
Carbonitriding is a process by which carbon and nitrogen are introduced to the surface of a steel part. The goal of this process is to form an austenite (above A3) which becomes a martensite matrix microstructure after quenching.
PRESS RELEASE: FLOOR STANDING ELECTRIC FORGING AND TEMPERING FURNACE FOR HOT FORMING AND TEMPERING MEDICAL COMPONENTS
L&L Special Furnace Co, Inc., has shipped a floor standing forging furnace for use in hot forming of medial implant parts along with a floor standing tempering furnace to a manufacturer of medical implant components.
PRESS RELEASE: ELECTRICAL BENCH TOP BOX FURNACE FOR CURING OF CHEMICAL POWDERS
L&L Special Furnace Co, Inc., has shipped five model GS1714 furnaces to a worldwide leading manufacturer of chemicals and chemical coating products used in the medical field. They must be cured at 800°F and the furnaces can also be used for sintering of chemical powders up to 2,200°F.
Types of Annealing
Annealing is a general term which describes the heating of a metal to a specific temperature, holding it at that […]
THE QUARTERLY SPECIAL | Volume 1 Issue 1
L&L Special Furnace Co, Inc. has a longstanding reputation for designing special industrial furnaces, ovens, kilns, quench tanks and heat treating systems. Over these decades of design, production and service, L&L has manufactured some of the best heat treating furnaces, ovens and quenching equipment in the world.
PRESS RELEASE: LARGE ELECTRICAL BOX FURNACE
L&L Special Furnace Co, Inc., has shipped a Model FB1046 floor-standing box furnace to a worldwide leader of high tech aerospace and associated components located in the Southeastern United States. The furnace will be used for processing aerospace parts and various thermal applications.
PRESS RELEASE: XLC SERIES BOX FURNACE FOR CERAMIC MATRIX COMPOSITES
L&L Special Furnace Co., Inc. has shipped and installed a retort box furnace to a worldwide leader of aerospace components in the southern US. The furnace is used to de-binder ceramic matrix composite components deployed in the aircraft industry.
PRESS RELEASE: GS1714 BENCH MOUNTED BOX FURNACE
L&L Special Furnace Co, Inc. has shipped the 5th Model GS1714 furnace to a leading manufacturer of calcium phosphate materials used for medical devices.
Batch Processing and Flow Control
Both batch processing and flow control are important terms to know if you are involved in the manufacturing industry. The […]
Heat Treatment Furnace Atmospheres: Inert Gas and Hydrogen
Many heat treatment processes – including bright annealing, sintering, and carbonitriding – require a highly controlled atmosphere in order for […]
L&L Special Furnace Introduces New Catalog
L&L Special Furnace Co., Inc. has announced a newly designed catalog describing our full line of furnaces, ovens and quench […]
Electrical Dual Chamber Box Furnace for Heat Treatment of Machine Tooling
L&L Special Furnace Co, Inc., has shipped a dual chamber heat treating furnace to a southeastern US manufacturer of various […]
Additive Manufacturing & Laser Sintering Applications
The process we know as additive manufacturing (AM) may seem new, but it has actually been around for about thirty […]
Electrical Box Furnace Shipped to Major High Tech Ceramics and Glass Manufacturer for Ceramic Composites
L&L Special Furnace Co., Inc. has shipped a floor-standing furnace to a worldwide leader of high tech ceramics and associated […]
What Is Powder Metal Manufacturing?
When the goal for a part is the longest possible lifecycle and highest performance while operating under high temperatures, in […]
Electrical Box Retort Furnace for De-Bindering Ceramic Composites
L&L Special Furnace Co., Inc. has received an order for a large retort box furnace used for de-bindering ceramic composite […]
Customized Quench Tank for Oil Quenching of Multiple Metal Stamping Tools
L&L Special Furnace Co., Inc., has supplied a custom designed and manufactured oil quench tank to a metal stamping manufacturer […]
DRQ TEST RUNS
Here is model DRQ246 under factory test, verifying manual load manipulation and timing from solution heating to quench.
Types of Aluminum Heat Treatments
Aluminum heat treatment is a process by which the strength and hardness of a specific subset of aluminum alloys, namely […]
Aluminum Heat Treating
Since the early days of flight, aluminum in many forms has been used in the manufacture of aircraft. Aluminum is […]
L&L Exhibits at Furnaces North America 2018 in Indianapolis
L&L Special Furnace Co., Inc., attended and exhibited at the Furnaces North America show in Indianapolis, IN. FNA 2018 is […]
For Heat Treating Industrial Valve Parts And Various Tool Steels
L&L Special Furnace Co., Inc., has supplied an electric box furnace to a plant located in Louisiana that is a […]
What Are Ceramic Matrix Composites?
Composite materials are comprised of at least two parts: the reinforcement, which provides special mechanical properties such as stiffness or strength, and the matrix material, which holds everything together.
For Heat Treating Engine Parts In Inert Atmosphere For A Motor Manufacturing Facility
L&L Special Furnace Co, Inc., has supplied an electric box furnace to a Midwestern engine manufacturer that produces parts for […]
Why Choose L&L Industrial Box Furnaces?
L&L Special Furnace Co., Inc. industrial box furnaces are a cut above the competition because we go the extra mile […]
General Heat Treating At An Equipment Manufacturing Facility
L&L Special Furnace Company has supplied two electric box furnaces to a Midwestern machine manufacturer that builds high-speed cutting equipment, […]
Our products… your steel hardening process
Precision, uniformity and value in everything we build and sell. L&L Special Furnace Co. has been in business for decades, […]
Electric Box Furnace – AMS2750E Class 3 for Aircraft Landing Gear Structures
L&L Special Furnace Co., Inc. has commissioned a large resistance box furnace and quench tank in New Zealand for a […]
The Critical Aspects of Preparing Tool Steels Through Heat Treatment
Overview The heat treatment of tool steel is one of the most important aspects of the final tool. Without proper […]
Electrical Box Retort Furnace for Annealing Motor Laminations in Hydrogen
L&L Special Furnace Co., Inc. has shipped a retort furnace to a northeastern US manufacturer of motor laminations. The laminations […]
Electrical Box Furnace Delivered For Canadian Government Projects
L&L Special Furnace Co., Inc. has delivered an intermediate-sized front-loading box furnace that will be used by the Canadian Government […]
L&L Special Furnace Company, Inc., Announces Release of New Website
L&L Special Furnace Co., Inc., is excited about our new website launch and the amount of detailed and process-oriented information […]
L&L Special Furnace Co., Inc. Releases a New Four-Page Brochure
L&L Special Furnace Co., Inc. has released a new four-page brochure describing our line of general purpose electric heat treating […]
High Uniformity, General Purpose Heat Treating Furnaces
L&L Special Furnace Co., Inc. has manufactured a highly uniform box furnace that hardens tool steel used to manufacture decking […]
Fastener Manufacturer Orders Box Furnace
L&L Special Furnace Co. Inc. manufactured a highly uniform box furnace that hardens tool steel used to manufacture decking fasteners […]
QDA Series: High Uniformity, Dual Chamber Furnace
L&L Special Furnace Co., Inc. has delivered a floor standing dual chamber box furnace to an aircraft maintenance repair and […]
Firing Advanced Ceramics in High-Temperature Furnaces
On April 12, 1981, when the first space shuttle lifted from its launching pad in Cape Canaveral, Fla., the employees […]
Tempering System for Aluminum Alloy
L&L Special Furnace Co., Inc. has manufactured two Model DRQ2436 high-uniformity annealing furnaces with semi-automated quench tanks, quench media coolers […]
Electrically Heated Cyclone Pit Furnace
L&L Special Furnace Co., Inc. has manufactured a third high uniformity pit-style furnace used for annealing. This furnace has been […]
High Uniformity Atmosphere Controlled Box Furnace
L&L Special Furnace Co., Inc. has manufactured a high uniformity box furnace used for hydrogen annealing. The furnace has been […]
High Uniformity, Dual Chamber Box Furnace
L&L Special Furnace Co., Inc. has manufactured a high uniformity, dual chamber box furnace used for solution heat treating of […]