Copper Tube Heavy Duty Insulated Inline Connector Manufacturer
Product description
Daga Power Systems manufactures Copper Tube Heavy-Duty Insulated Inline Connectors designed for demanding industrial, electrical distribution and mobile-equipment applications Kolkata, West Bengal, Odisha, Bihar, Jharkhand, Chhattisgarh, and Assam. These inline connectors combine a solid copper conductor tube with a thick, mechanical insulation sleeve to deliver high current carrying capacity, excellent mechanical strength, and robust environmental protection. They are ideal for splice repairs, battery connections, power distribution links, busbar joins and heavy wiring in panels, switchgear, locomotives, cranes and heavy machinery across East and Central India.
Key benefits at a glance:
- Heavy-duty copper tube for low resistance and high ampacity
- Robust insulated body for safety and mechanical protection
- Reliable crimp or compression termination for vibration-resistant joints
- Suitable for outdoor, industrial and coastal environments when specified with tin plating and UV-stabilised insulation
Manufacturing process
- Material sourcing & inspection
We source electrolytic copper tube and high-grade thermoplastic/thermoset insulation from vetted suppliers. Incoming material checks include dimensional verification and chemical composition certificates. - Tube blanking & machining
Copper tubes are cut to precise lengths, deburred and machined where needed (flaring, chamfering) to ensure consistent wire insertion and optimal crimp geometry. - Annealing
Tubes are annealed in controlled furnaces to improve ductility and ensure reliable cold-crimp behaviour. - Surface treatment (optional)
For corrosion resistance, tubes may be tinned or plated using a controlled electroplating process; this step is recommended for coastal or corrosive environments. - Insulation moulding & sleeving
Insulation sleeves (PVC, Nylon, or heat-shrinkable polyolefin) are moulded or slid over the tube and fused where applicable. For heat-shrink variants, we pre-install adhesive-lined shrink for moisture sealing. - Crimp profiling & finishing
Each connector is profiled for standard crimp dies and may receive additional mechanical ribs or knurls to improve grip. Visual finishing removes burrs and sharp edges. - Quality testing
Sample and batch tests include dimensional checks, pull-out/tensile tests, electrical resistance checks, dielectric withstand tests and, for heat-shrink types, water ingress and thermal cycling. - Packaging & labelling
Connectors are packed in protective trays, labelled with part codes, lot numbers and test certificates if requested.
Product capabilities
- Wire range:Available for conductor cross sections typically from 6 mm² up to 300 mm² (custom sizes on request).
- Termination types:Crimp, compression, soldered (on request).
- Insulation options:PVC, Nylon (PA), heat-shrinkable polyolefin with adhesive liner (for moisture sealing).
- Finishes:Bright copper or tinned copper for enhanced corrosion resistance.
- Voltage rating:Rated up to 1,000 V depending on insulation selection.
- Operating temperature:–40°C to +125°C (depends on insulation).
- Protection:IP-rated options available when combined with heat-shrink adhesive (moisture resistant).
- Standards & tests:Manufactured to meet client requirements and tested for tensile strength, contact resistance and dielectric strength; certificates available on request.
- Customisation:Length, outer insulation colour, marking, and special alloys available for OEM orders.
Performance advantages
- Low electrical resistance:Solid copper tube delivers minimal voltage drop and low heat generation under heavy loads.
- High mechanical strength:Tubular construction resists compression and deformation in high-current crimp joints.
- Secure, vibration-resistant joints:Proper crimp or compression ensures long-lasting connections in mobile and vibrating equipment.
- Enhanced environmental protection:Heat-shrink with adhesive or high-grade nylon/PVC sleeves protect against moisture, chemicals and UV.
- Corrosion resistance:Tinned finish prevents oxidation in coastal and industrial atmospheres.
- Wide temperature tolerance:Materials selected to perform in harsh thermal environments.
- Quick installation:Designed for standard heavy-duty crimping tooling — reduces installation time and field rework.
- Reworkable options:Solderable and mechanical compression variants allow controlled rework if needed.
Technical chart
Part Code | Conductor Range (mm²) | AWG equiv. | Outer Dia (mm) | Length (mm) | Typical Crimp Die | Voltage Rating (V) | Current Rating (A)* | Insulation |
DPS-CTI-06 | 6 – 10 | 10 – 8 | 6.5 | 25 | H-6 | 600 | 60 | PVC |
DPS-CTI-16 | 16 – 25 | 6 – 4 | 9.0 | 32 | H-16 | 600 | 120 | PVC / Nylon |
DPS-CTI-35 | 35 – 50 | 2 – 1/0 | 12.5 | 40 | H-35 | 1000 | 220 | Nylon / Heat-shrink |
DPS-CTI-70 | 70 – 95 | 3/0 – 4/0 | 16.0 | 50 | H-70 | 1000 | 350 | Heat-shrink |
DPS-CTI-150 | 120 – 150 | 300 – 350MCM | 22.0 | 70 | H-150 | 1000 | 600 | Heat-shrink (adhesive) |
DPS-CTI-300 | 185 – 300 | 300MCM – 500MCM | 30.0 | 95 | H-300 | 1000 | 900 | Heat-shrink (adhesive) |
*Current ratings are indicative and depend on conductor type, ambient conditions and installation method — consult Daga Power Systems engineering for final selection.
How we ensure customer satisfaction
- Stringent raw-material verification— all copper and polymer batches are tested for chemical composition and mechanical properties.
- Process control & traceability— each production lot is traceable with batch IDs, production logs and inspection records.
- Calibrated tooling & skilled operators— precision cutting, annealing and crimping are done on calibrated machines by trained staff.
- Comprehensive testing— pull-out/tensile tests, contact resistance, dielectric strength and visual inspections before dispatch.
- Custom engineering support— our technical team helps choose the right size, finish and insulation for your application and prepares datasheets on request.
- Flexible MOQ & timely delivery— we offer project quantities and expedite options to meet site schedules across Kolkata, West Bengal, Odisha, Bihar, Jharkhand, Chhattisgarh and Assam.
- Packaging for protection— moisture-resistant and labelled packaging for safe transit to coastal and interior sites.
- After-sales & field support— technical assistance, replacement policy and on-site support for large or critical installations.
- Continuous improvement— customer feedback loops and batch analytics drive product improvements and higher reliability.

