Delmer Group – Pioneering Thermal Processing Solutions for Over Four Decades

Delmer Group stands as a global leader in specialized thermal processing solutions, backed by over 40 years of expertise in the design and manufacturing of high-performance industrial equipment. Our commitment to precision engineering and innovation has made us the trusted partner for jewellery manufacturers, metal refiners, and industrial producers worldwide.

Among our flagship offerings, our annealing tunnel furnaces hold a special place. Built for high-volume jewellery production, these systems are meticulously designed to meet the stringent metallurgical requirements of gold, silver, and copper.

Precision Annealing for Multiple Metal Forms

Our continuous annealing systems are optimized for superior metallurgical performance, ensuring metals achieve optimal ductility, uniform grain structure, and stress-free properties—crucial for downstream fabrication.

1. Chains

For jewellery chains, precision matters. Our annealing tunnel furnaces deliver uniform temperature distribution and atmospheric control, resulting in chains with:

• Enhanced ductility for intricate designs
• Homogeneous crystalline structures
• Long-term durability and resistance to breakage

2. Coins

Coin production demands absolute surface perfection. Our annealing process:

• Normalizes the molecular structure of coin blanks
• Prevents cracking, warping, and surface defects during striking
• Delivers a consistent, premium finish ideal for minting applications

3. Rectangular Plates and Wires

Metals destined for shaping and forming must be stress-free to perform well. Our equipment ensures:

• Relief of internal stresses from prior processing
• Smooth cold-working without risk of fracture
• Enhanced forming capabilities for complex shapes and patterns

Built for Reliability, Engineered for Longevity

At Delmer Group, we know that in mass production, downtime is not an option. That’s why our annealing furnaces are:

• Engineered for continuous, 24/7 operation
• Capable of multi-decade service life without performance loss
• Proven to deliver consistent throughput and metallurgical accuracy

With a presence in global manufacturing hubs, we continue to empower industries with thermal processing solutions that combine innovation, durability, and precision engineering.

Delmer Annealing Furnace delivers precise, uniform heating for gold, silver, and copper, ensuring superior ductility, stress relief, and consistent quality in high-volume production.

Why Choose Delmer Group for Annealing Solutions?

• Over 40 years of thermal processing expertise
• Proven track record in jewellery and precious metal industries
• Custom-engineered designs to match specific production needs
• Global support and service network

For more information visit delmergroup.com