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Vertical Bottom Loading Vacuum Annealing Furnace

Description
Vertical bottom loading annealing furnace is satiable for bright annealing of materials like tool steel, die steel, high-speed steel, ultra-strength steel, magnetic material, stainless steel and non-ferrous metal. It is also specially used for vacuum annealing of large size jobs which is easy to deform, such as long pole-shape parts, shaft parts, board parts, etc.

Technical Features
1. The vacuum annealing furnace is vertical, single chamber, bottom loading structure. It is an optional to choose the moving-out bottom door device according to customer’s requirement.
2. Excellent temperature uniformity realized by octagon-shaped furnace hearth.
3. The lifting structure has function of eliminating the cumulative errors of lifting system automatically, the movements are of high stability and no vibration.
4. The lifting transmission structure of the bottom furnace door has several options according to the on-site situation.

Optional Configuration of Vertical Bottom Loading Annealing Furnace
1. Bottom loading type: vertical door can make horizontal movement, horizontally fixed
2. Vertical movement: screw moving/nut moving
3. Furnace hearth: Graphite heating elements and graphite felt heat insulation/Molybdenum heating element and metal heat insulation
4. Vacuum pump and gauge: Foreign brand/high-quality Chinese brand
5. Vacuum degree: High vacuum/medium vacuum
6. PLC: OMRON/Siemens/Mitsubishi
7. Temperature controller: SHIMADEN/EUROTHERM/Honeywell
8. Thermocouple: S type, K type, N type
9. Recorder: Paperless recorder/paper recorder
10. HMI: Simulation screen/Touch screen
11. Electric components: High-quality domestic brand/Schneider/Siemens

Specifications of Vertical Bottom Loading Annealing Furnace
Spec\Model VVA-0608S VVA-0808S VVA-0810S VVA-1012S VVA-1215S VVA-1515S VVA-1520S
Effective hot zone size Φ D×H (mm) Φ600 × 800 Φ800 × 1000 Φ1000 × 1000 Φ1000 × 1200 Φ1200 × 1500 Φ1500 × 1500 Φ1500 × 2000
Load capacity (kg) 650
1000 1150 1300 1450 1800
Heating Power (kW) 120 180 270 330 390 420 540
Max.Temperature(°C) 1150 1150 1150 1150 1150 1150 1150
1350 1350 1350 1350 1350 1350 1350
Temperature Uniformity (°C) ±5 ±5 ±5 ±5 ±5 ±5 ±5
Vacuum degree of vacuum annealing furnace (Pa) 4 × 10-1 4 × 10-1 4 × 10-1 4 × 10-1 4 × 10-1 4 × 10-1 4 × 10-1
4 × 10-3/6 × 10-4 4 × 10-3/6 × 10-4 4 × 10-3/6 × 10-4 4 × 10-3/6 × 10-4 4 × 10-3/6 × 10-4 4 × 10-3/6 × 10-4 4 × 10-3/6 × 10-4
Pressure Increase Rate (Pa/h) ≤0.26 ≤0.26 ≤0.26 ≤0.26 ≤0.26 ≤0.26 ≤0.26
≤0.65 ≤0.65 ≤0.65 ≤0.65 ≤0.65 ≤0.65 ≤0.65
Gas cooling pressure (bar) 2 2 2 2 2 2 2
 
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