Exothermic Welding Molds for Cable-to-Surface Connections are purpose-built graphite molds for joining stranded copper cable to steel surfaces, plates, or structures with a permanent molecular bond.

Unlike mechanical clamps or bolted surface lugs, an exothermic cable-to-surface weld creates a low-resistance, corrosion-resistant connection that does not loosen under vibration, thermal cycling, or fault current.

If you are sourcing exothermic welding molds Cable-to-Surface CS1, CS2, CS3, CS7, CS8, CS9, CS25, CS27, CS32, this category covers the standard connection styles.

1. CS Models
2. Applications
3. Choose
4. People also ask
5. Request a quote

Cable-to-Surface Connections

This range focuses on commonly requested Cable-to-Surface mold codes:

• CS1 / CS2 / CS3 — compact cable-to-surface joints for lighter conductors bonded to steel plates or frames
• CS7 / CS8 / CS9 — mid-range connections for standard copper cable sizes in equipment and structural bonding
• CS25 / CS27 / CS32 — heavier cable sections and higher-capacity surface welds where weld volume and mold cavity size must match larger conductors

Exact mold selection depends on cable cross-section, surface type, and joint layout. Share your conductor dimensions and connection sketch, and we will confirm the correct CS mold, welding powder charge, and handle/frame accessories.

Watch a video : 3 benefits for you to use our molds.

Applications

CS cable-to-surface molds are widely specified for:

• Copper grounding cable bonding to steel structures and plates
• Substation and equipment frame earthing connections
• Lightning protection equipotential bonding to metal surfaces
• Industrial plant and rail grounding where bolted surface joints are not preferred

Because the finished weld is permanent, these molds are preferred on projects that prioritize long-term electrical continuity and reduced maintenance.

Choose

To choose among CS1, CS2, CS3, CS7, CS8, CS9, CS25, CS27, and CS32, confirm:

1. Conductor size — cable mm² (or AWG) and surface/plate condition
2. Joint orientation — flat surface tap, vertical plate, or angled cable-to-steel layout
3. Powder size — matched weld metal volume for a complete fill

Using the wrong cavity size is the most common cause of incomplete welds. If your cable size sits between two codes, request a size chart before ordering.

You might also want to know

1. How we design and manufacture the molds ? > Watch video
2. How our exothermic welding powder works with the molds? > Watch video

Request a Quote or Spec Sheet

Send your conductor sizes, quantity, and destination port.

We can provide mold recommendations, powder pairing, and a formal quotation for contractors, distributors, and grounding system integrators.

Lucas
Product Manager & Marketing
EarthinGo Team