Shijiazhuang Zhengdrilling Machinery Equipment Co., Ltd.
Service Email: bruce@well-drillrigs.com
Bruce:+86-18603299555
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For drilling contractors working in remote locations, mountainous areas, and scattered construction sites, transporting and coordinating multiple pieces of equipment can be challenging.
A conventional DTH drilling setup normally requires a drilling rig, an external air compressor, drill rods, a DTH hammer, and compatible drill bits. Each component needs to be transported, connected, and checked before drilling can begin.
An integrated DTH drilling rig with air compressor combines the drilling unit and air compressor into one machine. This configuration reduces the need to arrange a separate external compressor and provides a more compact equipment setup.
ZDrill Machinery offers integrated DTH drilling rigs in several configurations, including YQ35, YQ35A, and YQ35D. These models are designed for relatively shallow borehole drilling and different drilling diameter requirements.
This article explains how an integrated DTH drilling machine works, its main features, available models, applications, and what buyers should consider before purchasing.
An integrated DTH drilling rig is a drilling machine that combines the drilling system and air compressor into one equipment package.
DTH stands for Down-the-Hole. In this drilling method, a pneumatic hammer is positioned near the drill bit at the bottom of the borehole. Compressed air powers the hammer, allowing it to deliver repeated impacts to the rock.
In a conventional setup, the drilling rig and air compressor are usually separate machines connected through air hoses and other components.
An integrated configuration places the compressor and drilling unit together, reducing the need to transport and arrange an additional external air supply machine.
The ZDrill integrated DTH drilling rig combines several systems:
Drilling and rotation system
Hydraulic feeding mechanism
Integrated air compressor
Crawler travel system
Adjustable drilling mast
Dust collection system
The equipment still requires compatible drill rods, DTH hammers, drill bits, and other standard accessories for normal operation.
It is important to understand that an integrated drilling rig is not simply a smaller version of a deep water well drilling machine. The YQ35-series models are designed for relatively shallow drilling applications, with published drilling depths of 21–27 meters depending on the model.
The integrated DTH drilling process follows the same basic principle as conventional pneumatic DTH drilling.
The difference is that the air supply is built into the drilling machine rather than provided by a separate compressor.
The machine is moved to the drilling location using its crawler travel system.
After reaching the working area, the operator positions the rig and adjusts the drilling mast according to the required borehole direction.
The appropriate drill rod, DTH hammer, and drill bit are installed according to the planned borehole diameter and geological conditions.
Tool compatibility should be confirmed before starting the drilling operation.
The built-in compressor supplies compressed air to the DTH hammer through the drilling system.
The compressor's working pressure and air displacement should match the requirements of the selected hammer.
The rotary system turns the drill string while the compressed-air-powered DTH hammer delivers repeated impacts to the rock.
The combined rotation and impact action helps break the formation at the bottom of the borehole.
Compressed air helps carry broken rock particles out of the borehole.
The operator continues drilling according to the required depth, geological conditions, and equipment operating parameters.
The complete process depends on the correct matching of the drilling machine, compressor, hammer, drill bit, and drill rods.
The main feature of this machine is its integrated air supply system.
The compressor and drilling unit are combined into one equipment package, reducing the need to purchase, transport, and connect a separate external compressor for the standard operating configuration.
This arrangement can be useful for contractors who want to simplify equipment coordination at the drilling site.
The YQ35 series uses a Baosi two-stage compressor. The published air displacement varies by model, ranging from 14.5 to 16 m³/min, with a maximum working pressure of 18 bar.
The final air supply should still be matched to the selected DTH hammer and drilling conditions.
The equipment uses a crawler travel system with a published travel speed of 1.5–3 km/h.
Crawler movement can help the machine travel around suitable construction sites without requiring a separate towing vehicle for every short-distance movement.
This is useful when drilling locations are spread across a working area or when conventional wheeled transportation is less convenient.
However, long-distance transportation still needs to be arranged according to the machine's dimensions and weight.
The integrated DTH drilling rig has an adjustable mast that can be positioned according to different working requirements.
The published mast specifications include:
Downward adjustment: 28°
Upward adjustment: 45°
Left and right mast deflection: 25° each
Mast pitch angle range: 130°
These adjustment ranges provide flexibility when positioning the drilling assembly.
Buyers should confirm the actual working angle and site requirements with the manufacturer before selecting the equipment for a particular project.
Combining the drilling unit and air compressor creates a more integrated equipment layout.
Compared with arranging separate machines, this configuration can reduce the number of independent equipment units that need to be transported and connected.
For contractors operating at remote or scattered construction locations, fewer separate components may simplify site preparation and equipment coordination.
The actual transportation advantage should be evaluated against the complete machine's weight and dimensions.
The equipment uses a hydraulic feeding mechanism with an oil cylinder and steel wire rope arrangement.
Its published specifications include a maximum feed thrust of 20 kN and maximum pulling force of 25–30 kN, depending on the model.
The rotary system provides different torque and speed ranges across the YQ35 configurations.
These parameters should be considered together with the drill rod, hammer, bit, and geological conditions when evaluating drilling performance.
ZDrill lists three configurations for its integrated DTH drilling rig with air compressor.
Although the models share a similar overall structure, their drilling diameters, impactor configurations, air displacement, rotary torque, and other parameters differ.
| Specification | YQ35 | YQ35A | YQ35D |
|---|---|---|---|
| Impactor Configuration | Not specified | 3.5 inches | 3.5 or 4 inches |
| Drilling Diameter | 80–115 mm | 80–127 mm | 80–140 mm |
| Drilling Depth | 21 m | 21 m | 27 m |
| Drill Rod Diameter | 64 mm | 64 mm | 76 mm |
| Drill Rod Length | 3,000 mm | 3,000 mm | 3,000 mm |
| Drill Rod Capacity | 7+1 pcs | 8+1 pcs | 6+1 pcs |
| Engine | Yuchai | Yuchai | Yuchai |
| Engine Rated Power | 176 kW | 176 kW | 176 kW |
| Maximum Air Pressure | 18 bar | 18 bar | 18 bar |
| Air Displacement | 14.5 m³/min | 16 m³/min | 16 m³/min |
| Maximum Rotary Torque | 2,000 N·m | 2,000 N·m | 4,000 N·m |
| Rotary Speed | 0–180 rpm | 0–140 rpm | 0–120 rpm |
| Maximum Feed Thrust | 20 kN | 20 kN | 20 kN |
| Maximum Pulling Force | 30 kN | 25 kN | 25 kN |
| Travel Speed | 1.5–3 km/h | 1.5–3 km/h | 1.5–3 km/h |
| Machine Weight | 10,500 kg | 10,500 kg | 11,000 kg |
General machine information:
Overall dimensions: approximately 8,010 × 2,400 × 2,950 mm
Compressor type: Baosi two-stage compressor
Feed beam: Aviation aluminum profile
Feed mechanism: Oil cylinder and steel wire rope
Dust collection: 14 filter cartridges
Electrical system: 24 V
The specifications above are based on the official product listing. Buyers should confirm the final configuration, model designation, and included accessories with ZDrill before ordering.
The integrated configuration is particularly relevant to projects where equipment mobility and a self-contained air supply are important.
The equipment can be considered for shallow borehole projects involving suitable rock formations.
Its DTH hammer system delivers impact energy near the bottom of the borehole, while the integrated compressor provides the air required for pneumatic operation.
Before selecting a model, buyers should confirm the required borehole diameter, depth, and geological conditions.
Mountainous construction sites can present transportation and equipment arrangement challenges.
An integrated machine may help reduce the need to position a separate air compressor alongside the drilling rig.
The crawler system and adjustable mast can be considered when planning drilling operations in suitable working areas.
Site access, ground stability, slope, and transportation requirements must still be evaluated before delivery.
Some contractors handle several relatively small drilling tasks across different locations.
Moving an integrated machine between nearby drilling points may simplify equipment coordination compared with transporting a separate drilling unit and compressor.
This configuration can be worth considering when projects are distributed across rural or remote working areas.
Certain construction projects require smaller-diameter rock boreholes or drilling operations in suitable rock formations.
An integrated DTH machine may be considered for applications where the required drilling diameter and depth fall within its published operating range.
The exact suitability depends on the engineering design, geological conditions, and project requirements.
For shallow groundwater projects, an integrated DTH drilling machine may be evaluated when the required borehole depth and diameter match the machine's specifications.
It should not be treated as a replacement for a 200 m, 500 m, or deeper water well drilling rig.
For deeper groundwater development, buyers should consider ZDrill's crawler-mounted, truck-mounted, or trailer-mounted water well drilling equipment.
When planning a pneumatic drilling project, buyers can choose between an integrated machine and a separate drilling rig with an external compressor.
Each arrangement has different purchasing and operating considerations.
| Comparison | Integrated DTH Rig | Separate Rig + Compressor |
|---|---|---|
| Equipment Arrangement | Combined into one machine | Separate machines |
| Air Supply | Built-in compressor | External compressor |
| Transportation | One integrated equipment unit | Separate equipment transportation |
| Site Setup | Fewer independent components to arrange | Requires compressor positioning and connection |
| Equipment Matching | Integrated configuration | Compressor and rig need to be matched |
| Flexibility | Designed around the integrated system | Compressor may be used with compatible rigs |
| Typical Consideration | Compact project setup and mobility | Projects requiring different compressor configurations |
An integrated machine may be a practical choice when the contractor values a combined equipment arrangement.
A separate setup may be more appropriate when the project requires a different compressor capacity or when the contractor already owns compatible air supply equipment.
The best option depends on the drilling depth, required air supply, site conditions, equipment availability, and project budget.
An integrated DTH drilling rig and a conventional water well drilling rig are designed for different drilling requirements.
| Comparison | Integrated DTH Rig | Conventional Water Well Rig |
|---|---|---|
| Main Purpose | Compact pneumatic rock drilling | Water well and borehole construction |
| Air Compressor | Integrated | Integrated or separate, depending on model |
| Typical Depth | 21–27 m for listed YQ35 models | Varies by model, including several hundred meters or more |
| Drilling Method | DTH percussion drilling | DTH, mud, rotary, or combined methods depending on model |
| Borehole Diameter | 80–140 mm for listed models | Varies by model |
| Main Advantage | Combined drilling and air supply arrangement | Broader range of drilling depths and configurations |
| Project Selection | Shallow drilling requirements | Medium and deep water well projects |
For contractors planning deep groundwater development, the integrated YQ35 series may not provide sufficient drilling depth.
For compact shallow drilling tasks, however, its combined compressor and drilling arrangement may be worth evaluating.
Choosing the right integrated drilling machine requires more than comparing engine power or drilling diameter.
The following factors can help buyers evaluate whether the equipment matches their project.
The published YQ35 and YQ35A drilling depth is 21 meters, while YQ35D is listed at 27 meters.
If your project requires a deeper borehole, ask ZDrill to recommend another suitable model rather than assuming that the integrated unit can be used for deep water well construction.
The three models cover different drilling diameter ranges.
Provide the required finished borehole diameter and any additional casing requirements before requesting a quotation.
The hammer and drill bit must be compatible with the selected drilling rig.
Buyers should confirm:
Hammer size
Bit diameter
Connection specifications
Suitable rock formations
Drill rod compatibility
Recommended operating conditions
The correct combination depends on the intended drilling application.
The built-in compressor is one of the main features of the machine.
Before purchasing, confirm the required working pressure and air displacement for the selected DTH hammer.
The YQ35 series lists a maximum working pressure of 18 bar and air displacement between 14.5 and 16 m³/min.
The final operating requirements should be checked against the hammer specifications and project conditions.
The machine has published dimensions of approximately 8,010 × 2,400 × 2,950 mm and a weight of approximately 10.5–11 tons.
Although the compressor and drilling unit are integrated, the complete machine still requires appropriate transportation arrangements.
Buyers should check:
Loading and unloading arrangements
Transport vehicle requirements
Site access width
Ground bearing capacity
Working platform dimensions
Maintenance access
The product specifications list a dust collection system with 14 filter cartridges.
For projects involving dry rock drilling, dust management and regular filter maintenance should be considered during equipment planning.
Ask the manufacturer about cleaning procedures, replacement filters, and other maintenance requirements.
Before ordering, clarify which components are included in the quotation.
The product listing states that standard accessories such as drill rods and DTH hammers are required for normal use, but buyers should confirm the exact supply scope.
A quotation may need to specify:
Integrated drilling machine
DTH hammer
Drill bits
Drill rods
Spare parts
Operation manual
Maintenance accessories
Export packaging
Clear confirmation can help prevent misunderstandings during delivery.
International project experience is useful when evaluating a drilling equipment supplier, especially for contractors purchasing machinery from overseas.
ZDrill has published a water well drilling project reference from Peru involving agricultural water well construction and groundwater development in 2025.
According to the company's published project information:
| Project Item | Published Information |
|---|---|
| Country | Peru |
| Project Year | 2025 |
| Application | Agricultural water wells and groundwater development |
| Equipment Quantity | 2 units |
| Equipment Types | Crawler-mounted and trailer-mounted drilling rigs |
| Supplier | ZDrill Machinery |
The project demonstrates ZDrill's experience supplying different drilling rig configurations for international water well applications.
The published case does not identify the integrated YQ35 series as the equipment supplied. It should therefore be understood as a reference to the company's broader international drilling equipment supply experience, rather than a direct installation case for this integrated DTH model.
For buyers planning a similar project, the important considerations remain the required drilling depth, geological conditions, equipment mobility, and supporting tools.
Shijiazhuang Zhengdrilling Machinery Equipment Co., Ltd. (ZDrill Machinery) specializes in drilling equipment research, manufacturing, and international supply.
Founded in 1997 and located in Shijiazhuang, Hebei, China, the company supplies different types of drilling equipment and supporting tools.
Its product range includes:
Water well drilling rigs
Crawler drilling rigs
Truck-mounted drilling rigs
Trailer-mounted drilling rigs
Integrated DTH drilling rigs
Air compressors
Mud pumps
DTH hammers and drill bits
Drill pipes and other drilling tools
For buyers interested in an integrated drilling solution, ZDrill can discuss model selection, drilling diameter, required depth, DTH hammer configuration, and project-specific requirements.
Explore the Integrated DTH Drilling Rig with Air Compressor to review the available YQ35-series configurations.
You can also visit the ZDrill Drilling Equipment Catalog to compare other drilling machine types.
For company information and manufacturing background, visit About ZDrill Machinery.
An integrated DTH drilling rig combines the drilling unit and air compressor into one machine. It uses compressed air to power a down-the-hole hammer for rock drilling.
The ZDrill integrated DTH model includes a built-in air compressor, so a separate external compressor is not required for its standard integrated air supply configuration.
The machine still requires compatible DTH hammers, drill bits, drill rods, and other standard accessories.
The published drilling depth is 21 meters for YQ35 and YQ35A, while YQ35D is listed at 27 meters.
The published drilling diameter ranges are 80–115 mm for YQ35, 80–127 mm for YQ35A, and 80–140 mm for YQ35D.
The main differences include drilling diameter, impactor configuration, drill rod specifications, air displacement, rotary torque, and maximum drilling depth.
YQ35D has the largest listed drilling diameter range and a maximum depth of 27 meters.
DTH drilling is commonly used for suitable rock formations. Actual suitability depends on rock hardness, borehole diameter, drilling tools, air supply, and project conditions.
The listed YQ35-series models have drilling depths of 21–27 meters. They are not intended to replace medium- or deep-water-well drilling rigs. For deeper projects, buyers should evaluate other ZDrill models according to the required depth and borehole design.
Start by confirming the required drilling depth, borehole diameter, geological conditions, hammer size, air supply requirements, and site accessibility.
Provide this information to the manufacturer so the appropriate model and accessory configuration can be evaluated.
An integrated DTH drilling rig with air compressor combines drilling and air supply functions into one equipment package.
For contractors handling shallow rock drilling projects, remote construction work, or scattered drilling locations, this arrangement can simplify equipment transportation and site preparation.
The ZDrill YQ35 series provides different configurations with drilling depths of 21–27 meters and drilling diameters of 80–140 mm.
If you are considering this type of equipment, share your project requirements with ZDrill Machinery.
To help evaluate a suitable model, provide:
Required drilling depth
Borehole diameter
Geological conditions
Project location
Preferred DTH hammer size
Expected working environment
Required accessories and quantity
ZDrill Machinery can use these details to discuss a suitable integrated drilling equipment configuration for your project.
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