IKING Cup Head Weld Pins are heavy‑duty metal fasteners for thermal insulation fixing, compatible with cuphead pin welder. Available in galvanized & copper‑coated finish, suitable for HVAC duct, marine and industrial pipeline insulation with customizable sizes.
IKING Cup Head Weld Pins, also known as insulation cup head weld studs, are high-performance integrated metal fasteners used to fix thermal insulation materials for HVAC ventilation systems, building walls, and industrial pipelines.
Made of an integrally stamped cup-shaped base and a solid steel pin, the product matches capacitor discharge cup head welders, featuring excellent welding performance and strong tensile force. After welding, the round cup base closely fits air ducts, pipes, and steel plates, firmly locking rock wool, rubber plastic, foam, and other insulation materials.
This product solves common problems including falling insulation layers, high energy loss and short service life. It is widely applied to air conditioning ducts, cold & hot water pipelines, industrial equipment shells, marine cabin thermal insulation, fireproof insulation cladding, and all construction scenes requiring stable fixation of insulation materials.
1. The integrated standard cup head fits insulation lock washers tightly, preventing insulation materials from sliding and falling off to extend the service life of insulation systems.
2. Solid steel pin with high hardness provides stable fixing force, which works well with most rigid and flexible insulation boards without loosening.
3. Designed for matched special cup head welders to finish welding in one step, saving construction time and cutting labor costs greatly.
4. Lightweight with unified sizes, easy to stack, sort, and transport, ideal for large-scale industrial and commercial construction.
5. Two surface treatments (galvanized & copper coating) deliver outstanding weather and corrosion resistance, suitable for indoor, outdoor, coastal marine and other harsh working environments.
6. Tight fixation avoids bulging, deformation, peeling and air leakage of insulation materials, reducing cold & heat energy loss and improving thermal insulation effect.
7. Complete standard inch sizes fit most insulation board thicknesses for general engineering use; customized sizes are supported for special projects.
Common Sizes: 3/8", 5/8", 7/8", 1", 1 1/8", 1 3/8", 1 7/8", 2", 2 7/8", 3", 4"
Pin Material: Low carbon steel / 304 stainless steel
Base Material: High-strength galvanized steel / stainless steel
Surface Treatment: Copper coating, galvanized coating
Length Tolerance: ±0.1 mm
Production Output: 20,000 pcs per hour
HVAC air ducts, marine thermal insulation, industrial pipeline insulation, fireproof insulation for building walls
Packaging, Storage and Transportation
All cup head weld pins are packed in standard export cartons for mass international logistics.
Store indoors in dry, ventilated and shaded areas. Avoid sharp impact, heavy pressure and humid surroundings during transportation and construction.
Q1: Does this pin have self-locking function?
A1: No, it is non self-locking type. Matching lock washers are required.
Q2: Can it be used outdoors?
A2: Yes, the galvanized surface offers good rust-proof performance.
Q3: Can we customize sizes?
A3: Yes, OEM customized production is available.
Q4: What insulation materials are compatible?
A4: Rock wool board, rubber plastic board, foam board, fire insulation board.
If you need cup head weld pins for your insulation projects, IKING provides fast delivery and professional technical support. Feel free to send inquiries for catalogs, quotations, and product samples.
