Six-metre single-rod drilling.
The long feed reduces rod-change interruptions and supports a steadier drilling cycle in production work.
ProductPVT · Down The Hole Drill Rigs
PVT-DL7 Down the Hole Drill Rig
The PVT-DL7 is an integrated cutting and high-pressure DTH drill rig for hard-rock mines, quarries and infrastructure excavation. A 6 m single-rod feed, automatic 18-rod changer, onboard high-pressure compressor, dry dust collection and climate-controlled cab support productive, self-contained drilling shifts.
Product imagery1 view
01Hole diameter90–220 mm
02Maximum depthUp to 120 m
03Drill pipe length6 m
04Automatic rod changer18 rods
Technical dataView all specificationsProduct parameters
Technical specifications.
Values shown are reference data. Final equipment configuration and regional compliance are confirmed in the technical agreement.
| Parameter | Specification |
|---|---|
| Drilling performance | |
| Hole diameter | 90–220 mm |
| Maximum drilling depth | 120 m |
| Drill pipe | Ø76 / Ø89 mm × 6 m |
| Rod storage | 18 rods |
| DTH hammer | DN45A / DN55A / DN65A |
| Feed and rotation | |
| Feed travel | 6,800 mm |
| Maximum feed / pullback | 40 kN |
| Rotary speed | 0–220 rpm |
| Rotary torque | 4,000 N·m |
| Feed roll | ±15° |
| Front tilt | ±120° |
| Air and power | |
| Compressor model | PDSJ850S enhanced |
| Air delivery | 19.8 m³/min |
| Compressor engine | Isuzu 6HK1 · 210 kW @ 1,900 rpm |
| Hydraulic engine | Weichai WP7H · 127 kW @ 2,200 rpm |
| Hydraulic flow | 225 × 2 + 20 L/min |
| Mobility and geometry | |
| Upper rotation | 360° |
| Boom length | 9,300 mm |
| Boom elevation | −45° to 60° |
| Travel speed | 2.9 / 4.3 km/h |
| Gradeability | 35° |
| Ground clearance | 470 mm |
| Track width | 600 mm |
Configuration note: Technical values were extracted from the supplied DL7 technical sheets. Final values depend on the selected hammer, drill string, compressor and regional configuration.
Media information
DL7 operating evidence and reference data.
The supplied technical documents were converted into structured product data. Commercial figures and the original quotation files are intentionally excluded from the website.
Operating video01 / 01
DL7 field operating record
Product details
Designed around real drilling conditions.
The PVT-DL7 is an integrated cutting and high-pressure DTH drill rig for hard-rock mines, quarries and infrastructure excavation. A 6 m single-rod feed, automatic 18-rod changer, onboard high-pressure compressor, dry dust collection and climate-controlled cab support productive, self-contained drilling shifts.
Automatic 18-rod handling.
The onboard rod changer supports drilling to 120 m while reducing manual handling around the feed.
Integrated air and dust systems.
The onboard high-pressure compressor and cyclone-plus-laminar dry collector reduce dependence on auxiliary equipment.
Operator-focused control.
Pilot joysticks, excavator-style controls, climate control, air purification, monitoring and fault alarms support long shifts.
Reinforced working structure.
A box-section boom and high-strength folded drill frame are designed for demanding rock drilling.
360° upper rotation.
Full upper-structure rotation broadens positioning options around the bench and work face.
Jobsite fit
Configured around your rock, hole plan and climate.
Send us the target diameter, depth, rock hardness, altitude and local emission requirements. We will recommend the drill string, hammer and regional machine configuration before quoting.
Discuss your application →01Hard-rock mining02Quarry & aggregates03Infrastructure excavation04Hydropower works
Heavy Rig support
From configuration to productive drilling.
Application review
We verify ground conditions, hole plan and production targets.
Factory configuration
Drill tools, options, documents and delivery scope are locked before production.
Parts & service planning
Recommended startup spares and consumables help protect your first operating season.
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Need a rig matched to your rock, depth and site conditions?
Send your target hole diameter, depth, rock type and timeline. Heavy Rig will help narrow the configuration.