As a DTH hammer supplier, I understand the importance of proper storage for these powerful tools. DTH (Down-The-Hole) hammers are essential in various industries such as mining, construction, and geothermal drilling. When not in use, storing them correctly can significantly extend their lifespan, maintain their performance, and save costs in the long run. In this blog, I'll share some professional tips on how to store a DTH hammer when it's not in operation.
1. Clean the DTH Hammer Thoroughly
Before storing the DTH hammer, it's crucial to clean it thoroughly. Drilling operations expose the hammer to dirt, dust, rock fragments, and drilling fluids. These contaminants can cause corrosion, abrasion, and damage to the internal components if left on the hammer.
- External Cleaning: Use a high - pressure water jet or a wire brush to remove dirt and debris from the outer surface of the hammer. Pay special attention to the threads, ports, and any crevices where dirt can accumulate. For stubborn dirt, a mild cleaning solution can be used, but make sure to rinse it off completely to prevent any chemical residue from remaining on the hammer.
- Internal Cleaning: If possible, disassemble the hammer according to the manufacturer's instructions. Clean each internal component, such as the piston, valve, and cylinder, using a suitable solvent. This will remove any built - up sludge or debris that could affect the hammer's operation when it's put back into use. After cleaning, dry all components thoroughly to prevent rust and corrosion.
2. Inspect for Damage
Once the DTH hammer is clean, conduct a detailed inspection for any signs of damage. This includes checking for cracks, wear on the threads, and damage to the seals.
- Visual Inspection: Look closely at the entire hammer, including the bit, shank, and body. Cracks can weaken the structure of the hammer and may lead to catastrophic failure during subsequent use. If any cracks are found, it's important to assess whether the hammer can be repaired or if it needs to be replaced.
- Thread Inspection: The threads on the DTH hammer are critical for proper connection to the drill string. Check for any signs of wear, galling, or damage. Damaged threads can cause poor connection, leading to vibration and reduced drilling efficiency. If the threads are worn, they may need to be repaired or the component replaced.
- Seal Inspection: Seals play a vital role in preventing the ingress of dirt and drilling fluids into the internal components of the hammer. Inspect the seals for any signs of damage, such as cuts, tears, or hardening. Damaged seals should be replaced immediately to ensure the hammer's performance and longevity.
3. Apply a Protective Coating
After cleaning and inspection, apply a protective coating to the DTH hammer to prevent rust and corrosion.
- External Coating: Use a high - quality anti - rust paint or a corrosion - resistant spray on the outer surface of the hammer. Make sure to cover all exposed metal parts, including the bit and shank. This will create a barrier between the metal and the environment, protecting it from moisture and oxidation.
- Internal Coating: For the internal components, apply a thin layer of lubricating oil or a specialized anti - corrosion compound. This will protect the internal surfaces from rust and ensure smooth operation when the hammer is used again.
4. Store in a Suitable Environment
The storage environment has a significant impact on the condition of the DTH hammer.
- Dry Location: Choose a dry storage area with low humidity. Moisture is one of the main causes of rust and corrosion in DTH hammers. A humidity level below 50% is ideal. If possible, use a dehumidifier in the storage area to maintain a dry environment.
- Temperature Control: Avoid storing the hammer in extreme temperature conditions. High temperatures can cause the lubricants to break down, while low temperatures can make the metal brittle. A stable temperature between 10°C and 30°C is recommended.
- Protection from Dust and Debris: Store the DTH hammer in a clean area away from dust and debris. If possible, cover the hammer with a protective cover or place it in a storage container to prevent dust from settling on it.
5. Proper Positioning
When storing the DTH hammer, it's important to position it correctly to prevent damage.
- Vertical Storage: Store the hammer vertically whenever possible. This helps to prevent any deformation of the internal components due to the weight of the hammer. If vertical storage is not feasible, make sure to support the hammer properly to avoid any stress on the body or components.
- Avoid Stacking: Do not stack DTH hammers on top of each other. Stacking can cause damage to the hammers, especially to the bits and threads. If multiple hammers need to be stored, keep them separated by a suitable distance.
6. Keep Records
Maintaining records of the storage process is essential. This includes recording the date of storage, the condition of the hammer at the time of storage, and any maintenance or repairs carried out. These records can be valuable when it comes to assessing the hammer's condition before it's put back into use and for warranty claims.
7. Regular Checks
Even during storage, it's important to conduct regular checks on the DTH hammer.
- Visual Checks: Periodically inspect the hammer for any signs of rust, corrosion, or damage. This can be done on a monthly basis. If any issues are detected, take appropriate action immediately.
- Function Checks: If possible, perform some basic function checks on the hammer before it's taken out of storage. This can include checking the movement of the piston and the operation of the valve.
In conclusion, proper storage of a DTH hammer is a multi - step process that requires attention to detail. By following these steps, you can ensure that your DTH hammer remains in good condition during periods of non - use and is ready for optimal performance when needed.
If you're in the market for a high - quality DTH hammer, we offer the ND QL Series DTH Hammer with Foot Valve. Our hammers are designed with the latest technology and built to last. If you have any questions or are interested in purchasing our products, please feel free to contact us for a detailed discussion and procurement negotiation.
References
- "Drilling Equipment Maintenance Handbook", Industry - wide Drilling Association
- Manufacturer's manuals for DTH hammers