Innovative Vacuum Solutions for Heat Treatment Furnaces by Leybold
Modern metal heat treatment technologies require precise atmosphere control and process purity. Leybold, a global leader in vacuum technology, offers optimal solutions for various heat treatment processes, ensuring high product quality and cost efficiency.

Key Heat Treatment Processes
1. Standard Processes
Annealing – improving metal structure

Hardening – increasing hardness

Tempering – reducing internal stresses

Recommended Solutions:

SOGEVAC B/BR – oil-sealed rotary vane pumps

RUVAC – booster pumps for higher pumping speed

Benefits:
✔ Best price/performance ratio
✔ Minimal maintenance
✔ Resistance to moderate loads

2. Demanding Processes
Brazing – joining metal components

Nitriding – enhancing wear resistance

Sintering – powder metallurgy applications

Recommended Solutions:

DRYVAC DV – dry screw pumps

VARODRY VDI – compact air-cooled models

Benefits:
✔ Resistance to aggressive vapors (fluxes, ammonia)
✔ Low energy consumption
✔ Extended service intervals

3. Special Processes
Carburizing – surface carbon enrichment

Nitro-carburizing – combined treatment

Recommended Solutions:

SCREWLINE SP – heavy-duty screw pumps

Diffusion pumps – for high vacuum applications

Benefits:
✔ Cleanable without disassembly
✔ Handles hydrocarbon vapors
✔ Maximum reliability

Why Choose Leybold?
1. Energy Efficiency
Smart power management

Up to 50% energy savings in standby mode

2. Solution Flexibility
Modular systems for all requirements

Wide performance range

3. Reliability
Proven industrial solutions

Minimal downtime

4. Global Support
Worldwide service network

Fast spare parts delivery

Implementation Examples
1. Gear Wheel Hardening
Challenge: Need for clean vacuum

Solution: SOGEVAC + RUVAC system

Result: Consistent treatment quality

2. Automotive Radiator Brazing
Challenge: Aggressive flux vapors

Solution: DRYVAC with corrosion protection

Result: Extended equipment lifespan

3. Cemented Carbide Sintering
Challenge: Polymer binder deposits

Solution: SCREWLINE SP with flush cleaning

Result: Reduced downtime

Leybold – Your Partner in Vacuum Heat Treatment!
As the official Leybold distributor in Latvia, PWMI offers:

🔹 Expert equipment selection – Custom solutions for your processes
🔹 Supply & installation – Genuine pumps and systems
🔹 Operator training – Professional guidance
🔹 24/7 support – Guaranteed assistance

Ready to upgrade your production?
📞 +371 251 65 233 | ✉ office@pwmi.lv