High-Performance Fasteners for Industrial Insulation
Precision-made in Europe by Metal Engineering
Product Overview
At Metal Engineering, we specialize in manufacturing cuphead insulation pins—also known as weld pins or insulation studs—designed to securely fasten insulation materials like mats, blankets, and foil to metal surfaces. These pins are welded using Capacitor Discharge (CD) or Drawn Arc welding, with the integrated cuphead acting as a washer for firm, reliable hold.
Key Features
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Customizable Design
Tailored to your specifications—length, diameter, and materials. -
Strong, Clean Welds
Weld strength exceeds pin strength; no distortion or burn-through. -
Fast Installation
Achieve 15–20 welds per minute with CD welding systems. -
Versatile Applications
Ideal for HVAC, automotive, construction, aerospace, and more. -
Optional Washers
Use insulating or beveled washers for foil protection and arc prevention.
Technical Specifications
Single Insulated Cuphead Weld Pin
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Shaft Material: Oxidized steel
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Shaft Diameter: 2.7 – 2.8 mm (selectable)
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Shaft Length: 22 – 120 mm (customizable)
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Head Material: Galvanized metal sheet
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Head Sheet Thickness: 0.5 mm
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Clip (Head) Diameter: 30 mm (fixed)
Double Insulated Cuphead Weld Pin
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Shaft Material: Oxidized steel
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Shaft Diameter: 2.7 – 2.8 mm (selectable)
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Shaft Length: 22 – 120 mm (customizable)
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Head Material: Galvanized metal sheet
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Head Sheet Thickness: 0.5 mm
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Clip (Head) Diameter: 30 mm (fixed)
Note: Dimensions reflect current machine setup. Custom sizes available for large contracts.
Additional Components
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Welding Heads & Spare Parts
Durable, precision-fit components for CD welding guns. -
Optional Washers
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Beveled Washers: Protect insulation from tearing
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Insulating Washers: Prevent electrical arcing with foil-faced materials
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Applications
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HVAC Systems – Securing thermal/acoustic insulation to ducts
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Industrial Equipment – Boilers, furnaces, and pipes
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Insulation Blankets – Pins function as integrated hooks
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Special Projects – Aerospace, shipbuilding, automotive, and modular construction
Compatible Welding Equipment
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CD Welding (Capacitive Discharge):
Fast, portable (220V), clean welding with minimal distortion
Why Choose Metal Engineering?
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Proven Expertise – European manufacturing backed by decades of experience
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Tailored Solutions – Custom sizes, materials, and support for any project
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Reliable Quality – Metallographic testing ensures weld integrity and long-term performance
Get a Quote or Technical Consultation
📧 Email: office@metaleng.eu
📞 Phone: +359 883 548 474
👤 Contact Person: Iliyan Mitov
