Delmer belt-type annealing furnace for continuous heat treatment and chain welding
Delmer Annealing Furnace for Heat Treatment and Welding of Chain ( Belt type )

Delmer Annealing Furnace for Heat Treatment and Welding of Chain ( Belt type )

Regular price ₹2,442,393.00 Save Liquid error (snippets/product-template line 124): Computation results in '-Infinity'%
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With a legacy of over 40 years in industrial equipment design and manufacturing, Delmer Group is a trusted global leader in specialized thermal processing solutions. Our annealing tunnel furnaces are the backbone of high-volume jewelry production, engineered to meet the exacting metallurgical standards required for gold, silver, and copper processing.

Our furnaces feature two heating chambers that operate with separate heating zones and temperature settings.

A tubular frame and panels with louvres for air exchange are used to construct furnaces. General maintenance interventions are easier with a tubular system.

Heating muffles are made of resistance and unique, highly thermally efficient refractory insulating panels. Strong temperature changes can be handled by a special heating chamber made of stainless steel.

Due to belt movement, internal sliding blocks prevent chamber wear and tear. Water is used to cool the cooling chamber. The chambers are held together by a flange, and a nozzle on it allows gas to enter. In order to improve de-oxidation, two burners are placed in front of the tunnel's two ends.


Continuous Annealing for Superior Metal Quality

Our furnaces are designed for precision, consistency, and efficiency, making them ideal for a wide range of applications:

  • Jewelry Chains – Exceptional temperature uniformity and advanced atmospheric control ensure chains with optimal ductility, flawless crystalline structure, and long-term durability, even in the most intricate designs.
  • Coin Blanks – Our annealing process optimizes molecular structure, preventing cracking or warping during minting, and delivering a smooth, high-quality surface finish.
  • Rectangular Plates & Wires – By reducing internal stresses, our furnaces allow for complex shaping, bending, and forming without the risk of fracture, ensuring maximum production efficiency.

 

Model   bD 020 bD 030 bD 040 bD 050
Size mm
kg
700 x 3050 x1530
390 (450 with diss.)
700 x 4030 x1530
580 (640 with diss.)
700 x 44600 x1530
600 (660 with diss.)
700 x 5030 x1530
660 (520 with diss.)
Voltage V 3 x 400V (3x230V Optional)
Power Inv 11.5
13.5 (with diss.)
13.3
15.8 (with diss.)
16.8
19.3 (with diss.)
20.3
22.8 (with diss.)
T Max 950 (1100 Optional)
Chamber
Dimension
mm 80 x 40
100 x 50
80 x 40
100 x 50
80 x 40
100 x 50
80 x 40
100 x 50
Length Heading Zone mm 600 800 1000 1200
n°zone   1 2 2 2
Cooling Chamber mm 985 1600 1600 1800
Reducing
atmosphere
I/min N+3H
10-20
N+3H
10-20
N+3H
10-20
N+3H
10-20


Accessories Optional
NH3 Dissociator Only In Order Face
60 kg -2.5 kw
Chain Loader 0
Belt Types  

Optional :

  1. Chain guide
  2. Hydrogen Nitrogen Mixer
  3. Ammonia filter
  4. Ammonia pressure regulator
  5. Nitrogen pressure regulator
  6. Hydrogen pressaue regulator
  7. Ammonia dissociator

Built for Reliability & High-Volume Production

Delmer annealing tunnel furnaces are robust, long-lasting, and energy-efficient, built for non-stop operation in demanding mass production environments. They offer consistent throughput, minimal maintenance, and precise process control — empowering manufacturers to maintain uninterrupted productivity for decades.

From jewelry manufacturing to minting operations, Delmer Group’s annealing solutions deliver unmatched precision, performance, and profitability to clients worldwide.