Jining Tongzhao Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of crawler down the hole drill rig in China. If you're going to wholesale durable crawler down the hole drill rig made in China, welcome to get pricelist from our factory. All customized products are with high quality and competitive price.
Products Description
Compared to top‑hammer drills, a crawler down the hole drill rig delivers straighter holes, less energy loss, and better performance in fractured or hard rock (e.g., granite, basalt, limestone).
Key Advantages of This Crawler Down The Hole Drill Rig
1. True All‑Terrain Mobility
Tracks distribute weight evenly. Your crawler down the hole drill rig moves across mud, loose gravel, steep slopes (up to 25–30°), and rocky outcrops without sinking or slipping. No need to lay mats or tow the rig.
2. High Drilling Speed in Hard Rock
Because the DTH hammer strikes directly at the bottom of the hole, impact energy isn't wasted along long drill rods. A well‑matched crawler down the hole drill rig can drill 20‑30 meters per hour in 100–200 MPa rock.
3. Straight, Accurate Holes
Less rod bending and deviation. For blast patterns, anchoring, or foundation piles, a crawler down the hole drill rig keeps deviation under 1–2%, saving you explosives and rework.
4. Low Air Consumption per Meter
Modern DTH hammers are efficient. Paired with the right air compressor, your crawler down the hole drill rig uses less diesel to produce the same drilling output.
5. One‑Man Operation
Hydraulic rod handling, auto‑rotation, and track controls put everything in the operator's cabin or remote panel. One person runs the whole crawler down the hole drill rig – no additional helpers for rod changes.
6. Easy Maintenance Layout
All filters, lubricators, and hammer parts are accessible from ground level. This crawler down the hole drill rig design cuts daily greasing time by half.
|
Parameter |
Specification |
|
Model |
TZ-300B |
|
Chassis |
8-ton excavator chassis |
|
Travel motor |
TM10 |
|
Engine |
Yuchai Power(options: 6105 Yuchai / 4015 Yuchai) |
|
Hydraulic motors |
Dual hydraulic motor / five-star motor |
|
Flow rate |
80–158 L/min |
|
Hydraulic oil pressure |
20 MPa |
|
Boom |
Front & rear angle adjustment |
|
Pressurization system |
Hydraulic motor |
|
Travel speed |
2.5–3 km/h |
|
Cooling system |
Dual electronic hydraulic oil cooler |
|
Drilling depth |
3 m (customizable) |
|
Drilling diameter |
300–500 mm |
|
Total weight |
Approx. 5000 kg |
|
Chassis length |
3000 mm |
|
Chassis dimensions (L×W) |
3000 × 2200 mm |
FAQ
Q: What's the difference between a crawler down the hole drill rig and a top‑hammer drill?
A: A top‑hammer strikes the top of the drill rod; a crawler down the hole drill rig has the hammer at the bottom, near the bit. DTH gives straighter holes and better depth capacity in hard rock (over 15–20 m). Top‑hammer is faster for shallow, small‑diameter holes in soft rock.
Q: What air compressor do I need?
A: For a crawler down the hole drill rig in the 80–115 mm range, you typically need 10–18 m³/min at 10–24 bar. Many users mount a screw air compressor on the same rig (integrated). For standalone rigs, a towable compressor works.
Q: How deep can it drill?
A: Single‑pass depth is usually 3–4 meters. With rod changes, a crawler down the hole drill rig can reach 25–30 meters. Deeper than that requires a larger hydraulic DTH rig or a dedicated exploration drill.
Q: Can the rig climb steep slopes?
A: Most track‑mounted units climb 25° – 30° on dry, firm ground. If your site has 35°+ slopes, look for a low‑center‑of‑gravity crawler down the hole drill rig with oscillating tracks and a winch.
Q: Is operator training complicated?
A: No. Basic controls are similar to a mini excavator. With 1days of familiarization, any experienced driller or excavator operator can run this crawler down the hole drill rig safely.
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