Espárragos de Cobre para Transformadores

Copper Threaded Studs -Precision Copper Components for LV, MV & HV transformer bushing applications

We are one of the leading fabricantes y exportadores of Espárragos de Cobre para Transformadores de India. We have been supplying high-conductividad threaded Copper studs to the global transformer and electrical equipment market for many decades. Our Copper studs are engineered for low voltage (LV), medium voltage (MV), and high voltage (HV) applications, especially for transformer bushing assemblies and terminal connections. With world-class machining facilities and a legacy of precision, proporcionamos full-threaded and half-threaded Copper studs that conform to ASTM, DIN, IS, and BS norma/estándars. Our flexibility in production, competitive lead times, and strong engineering support make us a preferred partner for OEMs and electrical utilities worldwide. We have been manufacturing and supplying Copper full threaded transformer studs, Solid Copper Studs for transformer busings since 3 decades.We use High Conductividad Copper material for manufacturing Copper studs.

Material Calidad/Grados & Properties of Copper Studs

We manufacture Copper studs using high-purity Copper calidad/grados that ensure superior conductividad eléctrica and mechanical resistencia.

Material Calidad/Grado	Norma/Estándar	Copper Content	Electrical Conductividad
ETP Calidad/Grado Copper	ASTM B187 / B133	> 99.90% Cu	≥ 100% IACS
Oxygen-Free Copper (OFHC)	ASTM B187 / B170	≥ 99.95% Cu	≥ 101% IACS
Electrolytic Copper Rod	IS 191 / DIN 40500	≥ 99.90% Cu	≥ 100% IACS

Manufacturing Processnof Copper Studs Threaded studs for Transformer Bushings

Our Copper transformer studs are manufactured through high-precision processes to meet dimensional accuracy and rendimiento requirements:

Copper Rod Sourcing & Cutting – High-purity Copper rods are sourced and cut to required longituds.
Turning & Threading – CNC lathes and precision thread rolling machines produce accurate full or half threads.
Chamfering & Slotting – For ease of assembly and electrical contact.
Annealing (Optional) – For improved ductilidad in certain applications.
Deburring & Surface Cleaning – Ensures smooth finish and better conductividad.
Electroplating (Optional) – Tin or Silver plating as per customer requirement.

Machinery Used:

CNC Turning Centers
Thread Rolling Machines
Centerless Grinders
Chamfering & Slotting Machines
Plating & Cleaning Equipment

Typical Products

Full Threaded Copper Studs
Half Threaded Copper Studs
Threaded Copper Studs with Hex Shoulder
Copper Studs with Slotted or Drilled Ends
Tin-Plated or Silver-Plated Studs

Note: These studs also come primarily in 3/8″, 1/2″, and 3/4″ UNC threads, which are ampliamente utilizado en transformer bushing assemblies for LV, MV, and HV systems.

Finish Options

Natural Bright Copper Finish
Tin Plated (Electro-Tinned)
Silver Plated for High Conductividad

Industries Served ✔ Transformer Manufacturing (Power & Distribution Transformadores)
✔ Electrical Utilities and Aparamenta
✔ Renewable Energy Equipment (Solar Inverters, Wind Converters)
✔ Railways and Traction Systems
✔ Heavy Electrical Equipment Manufacturers

Tolerances & Turnaround Time

Dimensional Tolerances: ±0.05 mm (or as per customer drawing)
Thread Tolerances: As per ISO metric / UNC / UNF / BSW / DIN norma/estándars
Typical Turnaround Time: 4–6 weeks for bulk orders

Rendimiento Metrics

High Conductividad: ≥100% IACS for maximum current transfer
Thermal Resistance: Excellent heat dissipation properties
Mechanical Resistencia: Withstands tightening torque during installation
Surface Integrity: Burr-free threads for superior electrical contact

Size-Dimensional Chart For Copper Studs

Tamaño de Rosca	Longitud Range (mm)	Thread Tipo	Tipo
M6	20–100	ISO Metric	Full / Half Threaded
M8	25–150	ISO Metric	Full / Half Threaded
M10	30–200	Metric / UNC	With or without Slot
M12	40–250	Metric / BSW	Tin Plated / Bare
M16	50–300	Metric / UNF	Hex Shoulder Optional
3/8″	1″–6″	UNC	Threaded / Slotted
1/2″	1.5″–6″	UNC	Tin / Silver Plated
3/4″	2″–8″	UNC	Heavy Duty Studs

Custom tamaños available upon request.

Size-Dimensional Chart for Accessories

Below is a table of norma/estándar dimensiones for our components:

Component Tipo	Outer Diámetro (mm)	Tamaño de Rosca (Metric)	Tamaño de Rosca (UNC)	Longitud (mm)
Copper Stud	6.0	M6, M8, M10	1/4″, 3/8″	15-50
Bronze Spade	8.0	M8, M10, M12	1/2″	20-60
Bronze Terminal	10.0	M10, M12, M14	3/4″	25-75
Brass Lock Nut	12.0	M8, M10, M12	1/4″, 3/8″, 1/2″, 3/4″	–

Why Choose Our Copper Transformer Studs? ✔ Decades of Global Export Experience

✔ Fully Customizable Dimensiones & Plating
✔ 4–6 Week Norma/Estándar Delivery
✔ Quick Sampling & Prototyping
✔ Responsive Communication & Engineering Support
✔ Private Labeling & Custom Packaging Available

Customer Testimonial David M., Ohio, USA: “We’ve been working with this Indian supplier for over 7 years. Their Copper transformer studs have consistently outperformed our previous vendors in quality and lead times. Communication is clear, and customization is never a problem.”

Packaging & Shipping

Norma/Estándar Packaging: Corrugated boxes, polybags with labels
Custom Packaging: Blister packs, customer-branded cartons
Export Shipping: Sea Freight, Air Freight, and Express Courier options

Glossary of Terms

IACS: International Annealed Copper Norma/Estándar, a measure of conductividad eléctrica
ETP Copper: Electrolytic Tough Pitch Copper, high conductividad calidad/grado
OFHC Copper: Oxygen-Free High Conductividad Copper for premium electrical rendimiento
Thread Rolling: A process to form threads by pressing rather than cutting, resulting in higher resistencia

Looking for high-rendimiento Espárragos de Cobre para Transformadores? Contáctenos now for a quick quote, product brochure, or engineering consultation. Reach out via email, WhatsApp, or phone – we respond promptly!