1. Product Overview
The HITBOX HBM200 is a heavy-duty 400 Amp brass welding ground clamp designed for industrial use. Constructed entirely from pure brass, it offers excellent electrical conductivity and strong clamping force, making it suitable for various welding applications. Its robust design helps resist welding splatter and ensures a secure ground connection.
Figure 1: Overview of the HITBOX 400A Brass Welding Ground Clamp.
2. Key Features
- Full Brass Construction: Ensures superior conductivity and durability.
- 400 Amp Capacity: Suitable for high amperage welding applications (300A to 500A).
- Secure Clamping: Designed to provide a tight and reliable ground connection, preventing accidental disconnections.
- Versatile Application: Compatible with stick welding, submerged arc welding, gas metal arc welding, and gas tungsten arc welding. Also useful for woodworking and metalworking.
- Adjustable Jaw Opening: Maximum jaw opening of 2.3 inches (5.9 cm) for various workpiece sizes.
- Multiple Lock-Down Screws: Features three set screws for securing the cable connection.
3. Specifications
| Attribute | Value |
|---|---|
| Brand | HITBOX |
| Model Number | HBM200 |
| Material | Brass |
| Current Capacity | 400 Amp (suitable for 300A to 500A) |
| Item Weight | 0.75 kg (1.65 lbs) |
| Max Jaw Opening | 5.9 cm (2.3 inches) |
| Product Dimensions | 5.91 x 7.48 x 11.02 inches |
| Color | Golden |
| Voltage Compatibility | 110V, 220V, 380V |
4. Setup and Installation
Follow these steps to properly connect your welding cable to the HITBOX HBM200 ground clamp:
- Prepare the Cable: Carefully strip approximately 1-2 inches of insulation from the end of your welding ground cable to expose the copper strands. Ensure the strands are clean and free of debris.
- Insert Cable into Clamp: Loosen the three set screws on the clamp using the provided hex key. Insert the stripped end of the welding cable into the designated opening on the clamp. Ensure the copper strands are fully seated within the clamp's connection point.
- Secure the Connection: Tighten the three set screws firmly with the hex key. This will secure the cable and ensure optimal electrical contact. Do not overtighten, but ensure the cable cannot be easily pulled out.
- Attach to Workpiece: Use the main screw mechanism to open the clamp jaws. Position the clamp securely onto a clean, conductive area of your workpiece. Tighten the main screw to ensure a strong, stable connection.
Video 1: Demonstrates the installation process of the HITBOX G Ground Welding Earth Clamp.
Figure 2: Step 1 - Insert the welding cable into the protective sleeve.
Figure 3: Step 2 - Strip the insulation from the welding cable to expose copper strands.
Figure 4: Step 3 - Insert the stripped cable into the clamp and tighten the set screws using the hex key.
Figure 5: Step 4 - Attach the ground clamp securely to the workpiece.
5. Operating Instructions
Once the ground clamp is properly installed and secured to your welding machine and workpiece, you can begin your welding operation. Ensure the contact point on the workpiece is clean and free of paint, rust, or other non-conductive materials to achieve the best electrical connection.
Figure 6: The ground clamp provides a stable electrical path during welding.
The solid brass construction of this clamp helps maintain a steady arc and makes striking an arc easier. Always ensure the clamp is tightly fastened to prevent it from detaching during work, which could compromise safety and weld quality.
6. Maintenance
- Regular Cleaning: Periodically clean the clamp jaws and connection points to remove any welding splatter, dirt, or oxidation that could impede electrical conductivity. A wire brush can be used for this purpose.
- Inspect Cable Connection: Regularly check the cable connection at the clamp for tightness. If the screws loosen over time, re-tighten them to maintain a secure connection.
- Check for Damage: Inspect the clamp for any signs of physical damage, such as cracks in the brass or wear on the screw threads. Replace the clamp if significant damage is observed.
- Storage: Store the ground clamp in a dry, clean environment when not in use to prevent corrosion and extend its lifespan.
7. Troubleshooting
- Poor Arc Stability or Difficulty Striking Arc:
- Check the ground clamp connection to the workpiece. Ensure it is clean and tightly secured to a bare metal surface.
- Inspect the cable connection to the clamp. Re-tighten the set screws if loose.
- Verify the welding cable itself is not damaged or corroded.
- Clamp Overheating:
- Ensure the clamp's current rating (400A) is appropriate for your welding machine's output.
- Check for loose connections at both the clamp and the welding machine, as these can cause resistance and heat buildup.
- Ensure the contact area on the workpiece is sufficient and clean.
- Clamp Detaches from Workpiece:
- Ensure the main screw is tightened sufficiently to hold the clamp firmly.
- Verify the workpiece thickness is within the clamp's jaw opening capacity.
8. Warranty and Support
The HITBOX HBM200 Ground Clamp comes with a 1-year warranty. If you encounter any problems during the use of this product, please contact HITBOX customer service. Our 24-hour online customer service team is available to assist you with troubleshooting and support.
For further assistance, please refer to the official HITBOX website or contact your local distributor.
