ALD Vacuum industrial furnaces and metallurgical equipment

ALD Vacuum industrial systems: ModulTherm heat treatment lines, VIM and VAR melting furnaces, precision solidification units, and replacement items.

ALD Vacuum Technologies: global leader in vacuum metallurgy and heat treatment

German engineering manufacturer ALD Vacuum Technologies GmbH in Hanau designs industrial vacuum furnaces, melting systems, and thermal processing installations. The company engineers modular vacuum equipment for aerospace, metallurgical, and automotive sectors.

Primary manufacturing facilities and research engineering center located in Hanau
Core engineering division of advanced industrial group AMG Critical Materials
Dedicated technical service web portal and central depot for replacement items
Machinery operates across premier global metallurgical and manufacturing plants

ModulTherm and SyncroTherm modular vacuum heat treatment furnace systems

ModulTherm and SyncroTherm installations deliver low-distortion low pressure carburizing and high-pressure gas quenching up to 20 bar. The modular architecture links multiple vacuum heating chambers and gas quench cells around a centralized high-speed transfer robot.

Low pressure carburizing process using acetylene injection under low vacuum
High pressure dry nitrogen gas quenching up to 20 bar minimizes part distortion
Direct integration of modular vacuum cells into machining production flows
Substantial reduction of dimensional variations across precision gear shafts

Vacuum metallurgy and remelting systems: VIM, VAR, and ESR installations

Vacuum induction melting VIM, vacuum arc remelting VAR, and electroslag remelting ESR installations produce superalloys, titanium, and high-purity steels. The furnaces integrate precision melting crucibles and heavy-duty water-cooled copper molds for ingot formation.

Vacuum melting with deep degassing and melt refining for extreme alloy purity
Controlled directional solidification inside heavy-duty water-cooled copper molds
Automated consumable electrode feed control and arc voltage regulation systems
High-integrity ingot production for flight propulsion and turbo machinery rotors

Vacuum precision solidification and directional single-crystal growth systems

ALD precision vacuum solidification systems produce single-crystal and directionally solidified gas turbine blades. The equipment maintains steep thermal gradients during dynamic mold withdrawal from heating zones, optionally enhanced via liquid metal cooling baths.

Single-crystal blade structure fabrication eliminating transverse grain boundaries
Multi-zone graphite heating elements providing uniform thermal boundary profiles
Liquid metal cooling integration delivering ultra-high solidification gradients
Exceptional yield rates for complex hollow cooled aerofoil component shapes

Sintervac vacuum sintering furnaces and thermal barrier coating lines

Sintervac vacuum sintering furnaces and electron-beam TBC coating systems provide advanced finishing for critical components. The installations maintain protective atmospheres for carbide consolidation and apply ceramic thermal barrier layers onto turbine blades.

Atmospheric dewaxing combined with deep high-vacuum thermal sintering cycles
Hot zone thermal insulation utilizing rigid graphite felt and molybdenum baffles
Electron beam physical vapor deposition for durable thermal barrier coatings
Ultra-precise vacuum measurement and high-purity process gas atmosphere dosing

Replacement items, heating elements, vacuum seals, and ALD service parts

To ensure dependable operation of ALD vacuum furnaces, we provide graphite heating elements, high-temperature thermocouples, vacuum pump spares, valves, and elastomer seals. Selection proceeds via factory part numbers and machine nameplates with verified compatibility.

Graphite heating grids, radiation shields, thermal insulation, and charge racks
Type B and S thermocouples inside protective sleeves and optical pyrometers
Pneumatic vacuum gate valves, solenoid actuators, and fluoroelastomer seals
Overhaul kits for Roots vacuum blowers, dry screw pumps, and diffusion stacks

Engineering heritage and technological evolution of ALD Vacuum

German engineering corporation ALD Vacuum Technologies GmbH traces its origins to the merger of vacuum metallurgy divisions from Leybold and Heraeus, forming a recognized European center of excellence in industrial vacuum technology.

At its headquarters in Hanau, the company develops and manufactures advanced thermal and metallurgical systems for demanding alloy production.

Today the enterprise operates as a core business of AMG Engineering within the global AMG Critical Materials group. The Hanau engineering complex incorporates clean assembly halls, vacuum testing chambers, and materials science laboratories.

The company creates energy-efficient production solutions that minimize carbon emissions across turbine and automotive manufacturing supply chains.

Modular low pressure carburizing and gas quenching furnace lines

ModulTherm modular vacuum systems are engineered for high-throughput thermal treatment of serial engineering parts with minimal distortion.

The complex connects several vacuum heating cells via a high-speed internal transfer robot with a dedicated high-pressure gas quenching chamber utilizing dry nitrogen gas pressures reaching 20 bar.

Low pressure carburizing operates with cyclic dosing of purified acetylene gas into the vacuum hot zone at process temperatures up to 1050 degrees Celsius.

Carbon saturation uniformity is maintained across deep blind holes and gear teeth roots, eliminating intergranular oxidation and reducing dimensional allowances for final post-hardening finish grinding.

Vacuum induction melting and secondary remelting metallurgy plants

Within primary and secondary melting metallurgy, ALD supplies vacuum induction melting VIM installations, vacuum arc remelting VAR furnaces, and electroslag remelting ESR systems.

The machinery produces high-purity nickel and cobalt superalloys, titanium ingots, and premium alloy steels for critical aerospace propulsion and energy generation hardware.

Melting under deep vacuum guarantees efficient degassing of dissolved hydrogen, oxygen, and nitrogen while vaporizing undesirable trace contaminants.

Solidification inside water-cooled copper molds eliminates contamination from ceramic furnace linings, producing dense ingots characterized by homogeneous grain structure and freedom from shrinkage porosity defects.

Directional solidification and single-crystal growth equipment

For gas turbine propulsion and energy turbomachinery, ALD manufactures specialized VIM-IC precision vacuum investment solidification systems supporting directional solidification (DS) and single-crystal (SX) growth.

This equipment allows manufacturing turbine airfoils whose crystallographic orientation aligns precisely with principal centrifugal stress vectors.

The operational equipment features high-precision mold withdrawal mechanisms that extract preheated ceramic shells from hot graphite zones past dynamic radiation baffles.

To achieve steep thermal gradients, optional liquid metal cooling (LMC) technology immerses molds into molten tin baths, accelerating heat removal and suppressing undesirable stray crystal formations.

High-temperature vacuum sintering furnaces and barrier coatings

In powder metallurgy, Sintervac vacuum sintering furnaces combine binder removal dewaxing with high-temperature consolidation of tungsten carbide cutting tools and wear components into a continuous automated cycle.

Advanced gas flow dosing systems regulate dewaxing under partial-pressure hydrogen or argon before applying final high-vacuum sintering.

To safeguard turbine airfoils against extreme hot gas corrosion, ALD supplies electron-beam physical vapor deposition (EB-PVD) thermal barrier coating equipment.

High-power electron beam guns evaporate zirconia ceramic ingots in high vacuum, depositing a columnar microstructure that accommodates high thermal expansion strain during turbine operation.

Preventive maintenance procedures and replacement part delivery

Dependable and safe operation of ALD vacuum installations requires strict adherence to planned preventative maintenance schedules and periodic renewal of consumable components.

Recommended procedures include vacuum chamber helium leak testing, sensor recalibration, thermocouple testing, and inspection of graphite hot zone insulation felt blankets.

Technical support services provide replacement components including graphite heating elements, water-cooled power feedthroughs, fluoroelastomer vacuum seals, gate valves, and vacuum pump overhaul kits.

Component selection relies on factory equipment serial nameplates and assembly drawings to verify complete mechanical compatibility across all assemblies.

ALD Vacuum and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of ALD Vacuum and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.