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Tweco® GC-300 Ground Clamp (300A, thru 3/0) Copper Alloy, Clamshell


  • Tweco Roto-Work Ground Clamps are designed primarily to work in conjunction with the Tweco Roto-Ground Device. However, they may also be used for other high amperage grounding applications. The Roto-Ground shaft screws into the tapped back of the Roto-Work Clamp. The clamp is quickly attached or moved from one rotating weldment or fixture to the other without removing the Roto-Ground from it. Saves welding down time. Roto-Work Clamps are made from a copper alloy. They come in 600, 1200 and 2000 ampere capacity. Number WCRG- 2000 has two tightening screws. Number WCRG-600 works only with No. RG-230 due to its smaller shaft size. Large tightening screws and ample contact surface area provide cool, efficient operation.
    Part Number: 92051130
SKU: GC-300 Category: Tags: ,


Included Features • Copper cast upper and lower jaws
• Heavy Duty Spring providing the clamping force to the work surface
• Insulated Spring
Process(es) SMAW, SAW, GMAW, FCAW, GTAW, and PAW
Part No.
Applications Light
Amperage Capacity
Jaw Opening
1-1/2″ – Depth 4″ (38.1 mm –
101.0 mm)
Cable Conn Capacity
Ball-Point thru 3/0
English Length
Metric Length
216 mm

Additional information

Weight 1.25 lbs
Dimensions 10 × 6 × 3 in


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