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| Place of Origin: | China |
| Brand Name: | MIROC |
| Certification: | ISO |
| Model Number: | DHD340 |
| Minimum Order Quantity: | 1 |
|---|---|
| Price: | negotiation |
| Packaging Details: | wooden box or carbon box |
| Delivery Time: | 15-20days |
| Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability: | 2000pcs a month |
| Material: | Alloy Steel | Type: | DTH Hammer |
|---|---|---|---|
| Color: | Required | Application: | Water Well Drilling |
| Advantage: | High-efficiency | Quality: | 95% Quality Similarity With World Top Class Brands |
| High Light: | water hole 4 inch dth hammer,deep drilling 4 inch dth hammer,4" high air pressure dth hammer |
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4 Inch Water Hole Deep Drilling DHD 340 High Air Pressure DTH Hammer
Description
In DTH hammers, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes directly. Since the piston is in direct contact with the drill bit, little energy is lost. This gives DTH hammers a nearly constant penetration rate regardless of hole length.
• Small to medium size drilling diameters
• Works in low pressure range, capable of drilling shallow to medium hole lengths
Applications
• Underground mining
• Quarry benching operations
• Water well drilling
The main features are as following:
1. Simple design of the piston. Long life span.
2. More efficient energy transfer, faster drilling speed, low air consumption and lower oil consumption.
3. Fewer internal parts, simple structure, long life span, less failure and easier to maintain because all the parts are heat treated.
4. Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multiple steps thread.
Other Specification
| Description | Weight(kg) | ||
| N100 | N100A | N125A | |
| 1.Top sub | 59.00 | 70.00 | 70.00 |
| 2. O-ring Of Top Sub | 0.03 | 0.04 | 0.04 |
| 3.Breakout Ring | 0.40 | 0.80 | 0.80 |
| 4.Check Valve | 1.60 | 3.00 | 3.00 |
| 5. Spring | 0.30 | 0.10 | 0.10 |
| 6. Compression Buffer | 0.60 | 1.00 | 1.00 |
| 7. Air Distributor | 11.50 | 20.00 | 20.00 |
| 8. Internal cylinder | 11.00 | 23.00 | 23.00 |
| 9. Piston | 62.00 | 125.00 | 125.00 |
| 10. External Cylinder | 112.00 | 170.00 | 170.00 |
| 11. Guided Sleeve | - | 18.00 | - |
| 12. O-ring Of Stop Ring | 0.03 | 0.04 | 0.01 |
| 13. Stop Ring | 1.50 | 4.50 | 4.00 |
| 14. Breakout Ring | 0.40 | 0.80 | 0.80 |
| 15. Drive Chuck | 26.00 | 49.00 | 45.00 |
| 16. Drill Bit | 115.00 | 120.00 | 175.00 |
Contact Person: Mr. Yingkai Zhang
Tel: +86 18501231988
