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Pit-type bright heat treatment furnace & ovens
Heat treatment furnace manufacturer,Jiangsu Hongtai Industrial Furnace Technology Co., Ltd
The furnace adopts electric heating method, mainly for small batch or slender shaft workpieces without oxidation or bright heat treatment.
Products
Pit-type Bright Heat Treatment Furnace & Ovens
Vertical Loading Design • Controlled Atmosphere • Superior Surface Finish
Product Introduction
Our Pit-type Bright Heat Treatment Furnace & Ovens represent advanced vertical loading heat treatment technology, specifically engineered for applications requiring superior surface finish and contamination-free processing of long components and complex geometries. These systems utilize a unique vertical pit design that enables efficient loading of lengthy workpieces while maintaining precise atmospheric control for bright annealing, stress relief, and specialized heat treatment processes. The equipment is extensively utilized across stainless steel manufacturing, long component processing, precision manufacturing, and high-value alloy processing where surface quality and metallurgical properties are critical for product performance.
Core Advantages
- Vertical Loading Design: Unique pit-type configuration enables efficient processing of long components and complex geometries with optimal space utilization and easy loading access
- Controlled Atmosphere Technology: Advanced gas management systems maintaining precise atmosphere composition with oxygen levels below 10ppm for superior bright surface finish
- Superior Surface Quality: Bright annealing capability producing mirror-like surface finishes without post-treatment cleaning or pickling requirements
- Precise Temperature Control: Multi-zone heating systems with ±2°C uniformity ensuring consistent metallurgical properties throughout the vertical chamber
- Energy-Efficient Operation: Optimized vertical heating design and atmosphere recycling technology reducing energy consumption by up to 30%
- Advanced Safety Systems: Comprehensive safety features including atmosphere monitoring, leak detection, and emergency purging for secure operation
Process Flow
Vertical Loading
Load workpieces vertically into the pit chamber with proper fixturing and spacing for optimal heat distribution and atmosphere circulation.
Atmosphere Establishment
Seal chamber, purge with protective gas, and establish controlled atmosphere with precise composition monitoring for contamination-free processing.
Bright Heat Treatment
Execute programmed heating cycle under controlled atmosphere maintaining precise temperature and gas composition for optimal bright surface finish development.
Cooling & Unloading
Controlled cooling under protective atmosphere followed by vertical unloading with preserved bright surface finish quality.
Technical Specifications
| Parameter | Unit | Range/Value | Notes |
|---|---|---|---|
| Maximum Working Temperature | °C | 700 - 1200 | Bright annealing temperature range |
| Atmosphere Purity | ppm O₂ | < 10 | Ultra-low oxygen for bright finish |
| Working Chamber (Dia. × Depth) | mm | φ800×1500 to φ2500×4000 | Custom sizes for long components |
| Temperature Uniformity | °C | ±2 | Multi-zone vertical heating control |
| Control Accuracy | °C | ±1 | High-precision PID control |
| Protective Atmosphere | - | H₂/N₂/Ar/Forming gas | Multiple atmosphere options |
| Load Capacity | kg | 200 - 5000 | Depends on chamber size |
| Control System | - | PLC + HMI + Gas monitoring | Advanced automation |
Solving Customer Pain Points
Long Component Processing Challenges
Vertical pit design enables efficient processing of lengthy components and complex geometries that cannot be accommodated in conventional horizontal furnaces.
Surface Oxidation & Discoloration
Controlled atmosphere technology maintains oxygen levels below 10ppm, eliminating surface oxidation and producing bright finishes.
High Post-Treatment Costs
Bright annealing eliminates pickling and cleaning operations, reducing processing costs by up to 50%.
Space Utilization Issues
Vertical design optimizes floor space utilization while providing excellent access for loading and unloading operations.
Customer Success Stories
A leading long component manufacturer achieved 55% reduction in post-treatment costs and 40% improvement in surface quality consistency after implementing our pit-type bright heat treatment furnace, enabling processing of components up to 4 meters in length with superior bright finish quality.
Related Keywords
pit type bright heat treatment furnace, vertical bright annealing furnace, controlled atmosphere furnace, stainless steel bright annealing, long component heat treatment, precision bright annealing, vertical loading furnace, protective atmosphere furnace, deep pit furnace, vertical heat treatment
