High quality Vise Connectors, Bronze Vise Connectors, Grounding Vise Connectors, Electrical Vise Connectors, Bronze Vise Clamps
PRICE: US$ 10.90/Kilogram
Vise connectors and Bronze vise connectors AKA Bronze Vise Clamps and Grounding vise Connectors -clamps are specialized mechanical grounding clamps used to join conductors in electrical earthing systems. These precision-engineered components ensure secure, corrosion-resistant, and high-conductivity connections for both residential and industrial grounding installations. Ideal for harsh environments, they offer excellent mechanical grip and long-term performance.
Vise Connectors
Vise connectors are robust grounding solutions that use a vise-type mechanical clamp to hold two conductors together within a specified diameter range. They are commonly deployed in earthing grids, transformer yards, and lightning protection systems. These connectors provide a high-strength, low-resistance bond and can be installed using standard tools without the need for soldering or crimping.
Key Features:
- Accommodates a range of conductor diameters.
- Mechanical clamping ensures durable electrical contact.
- Easy to install with hex bolts.
- Resistant to loosening from thermal cycling or vibration.
Electrical Vise Connectors
Electrical vise connectors are purpose-built for providing stable, low-resistance connections in grounding and bonding systems for electrical installations. These connectors are designed to meet utility-grade reliability and ensure optimal performance in medium- to high-voltage power infrastructure, switchgear, substations, and renewable energy systems. They are compatible with both stranded and solid copper conductors and perform exceptionally in both dry and wet environments.
Bronze Vise Connectors
Bronze vise connectors are manufactured from high-strength copper-based bronze alloys, providing exceptional conductivity and corrosion resistance, especially in outdoor or substation environments. Bronze’s inherent durability makes these connectors the preferred choice for utility and industrial grounding needs.
Material Grades:
- ASTM B62, C83600, C95200 (USA)
- BS 1400 LG2 (UK)
- DIN 1705 Rg5 (Germany)
- JIS H5120 BC6 (Japan)
- GB/T 1176 ZCuSn5Pb5Zn5 (China)
Vise Connectors Size & Dimensional Chart
| Code | Conductor Range | Bolt Thread | Hex Head | A (in) | B (in) | C (in) | Std. Pack |
| BVC-2 | 6 sol – 2 sol | 5/16″ | 9/16″ | 1.33 | 0.81 | 0.93 | 200 |
| BVC-20 | 4 sol – 1/0 str | 5/16″ | 9/16″ | 1.72 | 0.80 | 1.03 | 100 |
| BVC-20S | 3 sol – 2/0 str | 3/8″ | 9/16″ | 1.91 | 0.94 | 1.19 | 100 |
| BVC-2S | 5 sol – 2 str | 5/16″ | 9/16″ | 1.52 | 0.79 | 0.93 | 200 |
| BVC-4 | 8 sol – 4 str | 5/16″ | 9/16″ | 1.13 | 0.73 | 0.83 | 200 |
| BVC-40 | 1/0 str – 4/0 str | 3/8″ |
Common ASTM Bronze Grades:
| Bronze Type | ASTM Designation | Description |
|---|---|---|
| Bearing Bronze | C93200 | General purpose leaded tin bronze |
| Bearing Bronze | C93600 | High leaded tin bronze, excellent machinability |
| High-Leaded Bronze | C93700 | High strength, excellent wear |
| Phosphor Bronze | C51000 | High strength, corrosion-resistant |
| Phosphor Bronze | C54400 | Spring properties, excellent fatigue resistance |
| Aluminium Bronze | C95200 | General-purpose, strong and corrosion-resistant |
| Aluminium Bronze | C95400 | Wear-resistant, marine use |
| Aluminium Bronze | C95500 | High strength, heavy-load applications |
| Silicon Bronze | C65100 | Moderate strength, good corrosion resistance |
| Silicon Bronze | C65500 | High conductivity and corrosion resistance |
| Manganese Bronze | C86300 | High strength, industrial wear resistance |
| Commercial Bronze | C22000 | Decorative, good corrosion resistance |
Finish Options:
- Natural Bronze
- Tinned Bronze (for marine or high-salt zones)
Bronze Vise Clamps
Bronze vise clamps are a subset of vise connectors specifically engineered for secure and tamper-proof bonding of conductors in grounding applications. Their high mechanical clamping strength and corrosion resistance make them ideal for exposed and buried installations. Made from high-conductivity bronze alloys, these clamps offer long service life with minimal maintenance. Their compact yet rugged design is preferred in industrial panels, grounding pits, and electrical enclosures.
Bronze Grounding Connectors
Bronze grounding connectors are tailored for high-reliability earth bonding. Their low resistance and high torque strength ensure minimal power loss and excellent mechanical performance under load. These are widely used in grounding grids, telecom towers, wind turbines, and substations.
Manufacturing Process:
- Gravity casting or hot forging
- Precision machining using CNC/VMC
- Thread rolling and surface finishing
Machinery Used:
- CNC lathes, VMC machines, Roll threading machines
- Torque-testing equipment
- Coordinate Measuring Machines (CMM) for QA
Grounding Vise Connectors
Grounding vise connectors combine the mechanical advantage of vise-type clamping with superior material integrity. Designed for high-performance applications, they provide reliable conductivity even in corrosive environments. Standard sizes are available to accommodate various conductor configurations.
Industries Served:
- Power transmission & distribution
- Renewable energy (solar & wind)
- Railways
- Oil & gas infrastructure
- Defense and telecom
Tolerances:
- Bolt Thread: +/- 0.2 mm
- Clamp Dimensions: +/- 0.3 mm
Turnaround Time: 4–6 weeks from order confirmation (standard sizes)
 Finish Options:
- Natural Bronze
- Tinned Bronze (for marine or high-salt zones)
Bronze Grounding Connectors
Bronze grounding connectors are tailored for high-reliability earth bonding. Their low resistance and high torque strength ensure minimal power loss and excellent mechanical performance under load. These are widely used in grounding grids, telecom towers, wind turbines, and substations.
Manufacturing Process:
- Gravity casting or hot forging
- Precision machining using CNC/VMC
- Thread rolling and surface finishing
Machinery Used:
- CNC lathes, VMC machines, Roll threading machines
- Torque-testing equipment
- Coordinate Measuring Machines (CMM) for QA
Grounding Vise Connectors
Grounding vise connectors combine the mechanical advantage of vise-type clamping with superior material integrity. Designed for high-performance applications, they provide reliable conductivity even in corrosive environments. Standard sizes are available to accommodate various conductor configurations.
Industries Served:
- Power transmission & distribution
- Renewable energy (solar & wind)
- Railways
- Oil & gas infrastructure
- Defense and telecom
Tolerances:
- Bolt Thread: +/- 0.2 mm
- Clamp Dimensions: +/- 0.3 mm
Turnaround Time: 4–6 weeks from order confirmation (standard sizes)
Size & Dimensional Chart
| Code | Conductor Range | Bolt Thread | Hex Head | A (in) | B (in) | C (in) | Std. Pack |
| A1C-2 | 6 sol – 2 sol | 5/16″ | 9/16″ | 1.33 | 0.81 | 0.93 | 200 |
| A1C-20 | 4 sol – 1/0 str | 5/16″ | 9/16″ | 1.72 | 0.80 | 1.03 | 100 |
| A1C-20T | 3 sol – 2/0 str | 3/8″ | 9/16″ | 1.91 | 0.94 | 1.19 | 100 |
| A1C-2T | 5 sol – 2 str | 5/16″ | 9/16″ | 1.52 | 0.79 | 0.93 | 200 |
| A1C-4 | 8 sol – 4 str | 5/16″ | 9/16″ | 1.13 | 0.73 | 0.83 | 200 |
| A1C-40 | 1/0 str – 4/0 str | 3/8″ | 9/16″ | 2.14 | 0.95 | 1.27 | 80 |
| A1C-6 | 10 sol – 6 str | 1/4″ | 3/8″ | 0.88 | 0.64 | 0.73 | 200 |
Why Choose Us?
- 30+ years of global export experience
- Approved supplier to major utilities
- Fast response, reliable support
- Customization options for special sizes and alloys
- In-house testing, global certifications
Glossary of Technical Terms
Vise Connector: A mechanical connector using bolt pressure to establish and maintain electrical connection between conductors.
Bronze: An alloy primarily consisting of Copper and Tin, known for excellent corrosion resistance and electrical conductivity.
Grounding: The process of connecting electrical equipment to the earth to provide a path for fault current and static discharge.
IACS (International Annealed Copper Standard): A standard measurement of electrical conductivity, with annealed Copper defined as 100% IACS.
Galvanic Corrosion: Accelerated corrosion occurring when dissimilar metals are in electrical contact in the presence of an electrolyte.
Contact Resistance: The electrical resistance at the junction of two conductors, measured in micro-ohms.
Dezincification: A corrosion process affecting Brass where Zinc is selectively leached from the alloy, leaving a weakened structure.
Ground Potential Rise (GPR): The maximum electrical potential a grounding system may attain relative to a distant grounding point.
MCM (Thousand Circular Mils): A unit of area equal to 0.001 circular inches, used for measuring conductor cross-sectional area.
U-bolt: A bolt in the shape of the letter U with threads on both ends, commonly used in clamping applications.
Typical Q&A
- What conductor sizes are supported? Each model supports two conductor sizes listed in its range.
- Are these UL or IEC certified? Custom certification is available as per customer region.
- Do you offer tinned finish? Yes, on request for marine applications.
- What is the material specification? Standard is high-tensile Bronze (C83600/C95200).
- Can we order in bulk with custom packing? Yes, bulk and OEM packaging are available.
- Do you provide 3D CAD drawings? Available on request for standard and custom parts.
- What is your MOQ? Standard packs, or custom MOQ based on requirement.
- How do these perform under corrosion testing? 500+ hours salt spray tested.
- Can these be reused? Not recommended for critical installations.
- How do you ensure quality? 100% visual and mechanical QC with batch traceability.
Customer Testimonials
“We’ve been using these Bronze Vise Connectors in our substation installations for the past three years. Their performance in corrosive coastal environments has been exceptional, with zero failures reported. The technical support provided by the team has been invaluable for our specialized applications.”
– Thomas Rodriguez, Electrical Systems Engineer, USA
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