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VTN Advantage:

We only employ the most innovative plants and machinery, to enable us to meet your require- ments as closely as possible

Plants and equipment

As a NADCAP-approved heat treatment centre for the aerospace industry, we possess a high quality range of innovative plant technology. We attach great importance to traceability and process recording. In conjunction with our innovative order management system, we are able to guarantee the highest quality standards along with unique process technology and reproducibility.

Technical facilities

Plants and equipment in the VTN Group

Vacuum: horizontal plant technology
Dimensions: up to 1400(2000) x 1400 x 3000 mm (WxHxD)
Max. quenching pressure: up to 15 bar
Max working temperature: 1,300°C
Max. batch weight: 5,000 kg

Vacuum: vertical plant technology
Dimensions: up to Ø 1200 x 1700 mm
Max. quenching pressure: up to 20 bar
Max working temperature: 1,300°C
Max. batch weight: 3,000 kg

Vacuum Carburizing furnace (LPC)
Dimensions: up to 760 x 710 x 1220 mm (WxHxD)
Quenching medium: oil
Max working temperature: 1,100°C
Max. batch weight: 850 kg

General-purpose chamber furnaces
Dimensions: up to 780 x 730 x 1080 mm (WxHxD)
Quenching medium: oil or hot-bath oil
Max working temperature: 980°C
Max. batch weight: 1,500 kg

Pushers
Dimensions: 650 x 650 x 450 mm
Quenching medium: oil
Max working temperature: 950°C
Max. weight per piece: 150 kg

Nitriding chamber furnaces
Dimensions: up to 1200 x 1000 x 1800 mm (WxHxD)
Max working temperature: (750°C) 650°C
Max. batch weight: (2,500 kg) 3,500 kg

Nitriding shaft furnaces
Dimensions: up to Ø 1000/1350 x 2800 mm
Max working temperature: 900°C
Max. batch weight: 3,500 kg

Retort shaft furnaces
Dimensions: up to Ø 1250 x 3500 mm
Max working temperature: 1,000°C
Max. batch weight: 4,500 kg
Quenching medium: hot bath or water

Salt bath hardening
Neutral salt bath
Dimensions: Ø 500 x 800 mm
Max working temperature: 920°C
Quenching medium: Warm bath or water

Medium frequency induction hardening
Dimensions: up to Ø 4000 mm; up to Ø700 mm at feed rate
Hardening length: up to 5000 mm

High-frequency induction hardening
Dimensions: up to Ø 150 mm at feed rate
Hardening length: up to 2000 mm

Intermediate-frequency induction hardening
Dimensions: up to Ø 250 mm at feed rate
Hardening length: up to 1000 mm

Horizontal induction hardening (passage)
Dimensions: up to Ø 30 mm
Hardening length: up to 850 mm

Induction hardening, horizontal hardening (pusher)
Dimensions: up to Ø15 mm
Hardening length: up to 300 mm

Lapping – glass bead
Dimensions: 1500 x 600 x 1000 mm (WxHxD)

Straightening
Up to 100t/160t press

No. Designation Dimensions [mm] WidthxHeightxDepth Max. batch- weight [kg] Max. temperature Quenching pressure N2 [bar]/ Quenching agent Atmosphere
1 Hardening furnace 1.100x700x2.000 2.000 1.300°C 1,5 bar abs. N2/Argon Vacuum 10-6
2 Hardening furnace 540x500x860 400 1.300°C 1,5 bar abs. N2/Argon Vacuum 10-4
21 Hardening furnace 600x600x900 600 1.300°C 13 bar abs. N2/Argon Vacuum 10-4
6 Hardening furnace ø1.800x2.360 5.000 1.300°C 15 bar abs. N2 Vacuum 10-2
14 Hardening furnace ø1.800x2.360 5.000 1.300°C 15 bar abs. N2 Vacuum 10-2
17 Hardening furnace 540x500x860 470 1.300°C 10 bar abs. N2 Vacuum 10-2
9 Convection air furnace-ofen 600x600x900 800 750°C Convection Air
10 Convection air furnace-ofen 600x600x900 800 750°C Convection Air
11 Convection air furnace-ofen 600x440x1.840 1.000 750°C Convection Air
12 Convection air furnace- ofen 600x440x1.840 1.000 750°C Convection Air
13 Retort furnace Ø1.380x2.300 3.500 620°C Air
15 Retort furnace Ø920x1.800 3.000 900°C N2
Deep freeze chamber 900x1.700x1.100 0-100°C