1450mm Bright Annealing furnaces

 Refurbished Stainless Steel Annealing Line

(Second-hand bell-type furnace technology optimized for Stainless Steel Sheet Annealing)

I. Core System Architecture & Technical Specifications

A. Dual-Zone Bell-Type Furnace Configuration

• Stainless Steel Annealing Line with hydrogen-nitrogen atmosphere (O₂ <10ppm)

• Dual 10.5m furnace sections (1,050–1,150°C) + 10m preheating zone

• Second-hand bell-type furnace validated via 72-hr thermal uniformity test (±5°C)

• Loopers System Integration

  Component	Specification	Performance Advantage
  Entry Vertical Accumulator	30-ton capacity, ±5mm vertical travel	Eliminates coil telescoping
  Exit Horizontal Accumulator	25-ton storage, servo-controlled arms	Enables zero-downtime re-coiling
  Synchronization	Eurotherm "590" DC Drive System	≤0.5% tension variance

B. Material Processing Capabilities

• Stainless Steel Sheet Annealing specialization:

• Thickness range: 0.2–1.8 mm (optimized for 304/316L grades)

• Standard sheet size: 4'×8' (1219×2438 mm)

• Max speed: 35 m/min (±0.2 m/min precision)

• Surface quality: Ra ≤0.15μm (mirror finish)

II. Performance Validation & Operational Superiority

A. Thermal Process Engineering

B. Production Efficiency Metrics

• Monthly capacity: 3,500 tons of 304 stainless (equivalent to 12,000+ sheets)

• Energy optimization:

• 15% gas reduction via recuperative burners

• 92% heat recovery in preheating zone

• Changeover time: ≤8 minutes for thickness transitions (0.2→1.8mm)

III. Industry-Specific Application Profiles

Medical Device Manufacturing

• 0.5mm 316L surgical instrument blanks:

• Meets ASTM A967 passivation requirements

• Zero surface carburization (hydrogen purity: 99.999%)

Architectural Cladding Production

• 1.2mm mirror-finish 304 stainless:

• 95% reflectivity retention after 500h salt spray testing

• Tolerance: ±0.03mm flatness across 4'×8' sheets

Automotive Exhaust Systems

• 409/439 ferritic stainless annealing:

• 35 m/min processing speed

• Recrystallization uniformity: 98.2%

IV. Refurbishment Certification & Sustainability

"As-New" Validation Protocol

Eco-Efficiency Advantages

• 40% lower carbon footprint vs. new installations

• 85% component reuse (refractory bricks, H₂ sensors, drive motors)

• SIL-2 safety compliance with hydrogen explosion prevention

V. Operational Economics & ROI Analysis

Cost-Benefit Comparison

ROI Acceleration

• Payback period: 10 months at 70% capacity utilization

• Residual value: 65% after 5-year service life

VI. Commissioning & Service Package

Deployment Framework

1. Material Trials: Process 200+ client-provided sheets

2. Performance Certification: Third-party surface analysis (ISO 25178)

3. Operator Training: 40-hr intensive program (includes Eurotherm "590" programming)

Support Ecosystem

• 24-month critical components warranty

• 36-hour emergency response (global hotline)

• Lifetime firmware upgrades for Eurotherm system