XCMG XR178E Rotary Drilling Rig

XR178E rotary drilling rig is a new generation of E series small tonnage product which optimizes the matching of electro-hydraulic system and engine system on the basis of mature XR168E to improve working efficiency. It adopts optimized large-scale structural components such as slewing platform of ‘工
’ shape beam structure, double jib parallelogram luffing mechanism, segmented plate thick-type drilling mast and so on to improve working stability and reliability.

It is widely used in the hole-forming operations of cast-in-place concrete piles in the construction of roads, railways, bridges, large venues and other projects, and it is especially suitable for industrial & civil buildings. It adopts mechanical interlocking or friction Kelly bars to work with rotary buckets such as sand drilling bucket, tubular drill and short spiral drill, as well as CFA or dual rotary drive.

XCMG XR178 Technical Introduction

1. High-Efficiency Rotary Drive: The rotary drive of the rotary drilling rig is designed with a maximum output torque of 178kN·m and a maximum speed of 38 r/min. This powerful performance configuration enables the rotary drive to operate more efficiently, effectively improving the drilling speed and overall construction efficiency of the rotary drilling rig, and adapting to heavy-load construction scenarios.

2. Stable Luffing Mechanism: Equipped with a double jib parallelogram luffing mechanism, the rotary drilling rig features a large support angle, and its support range has been increased by 24% compared with traditional models. This optimized structure greatly enhances the operational stability of the whole machine, ensuring safe and smooth construction even in complex and uneven construction sites.

3. Powerful and Reliable Power System: The rotary drilling rig is equipped with a Cummins electronically controlled turbocharged engine, which has strong power output and higher fuel adaptability. It can adapt to different types of fuel specifications in various construction areas, and the maintenance and servicing process is convenient and efficient, reducing the downtime of the equipment and ensuring continuous construction.

4. Energy-Saving and High-Efficiency Hydraulic System: The main hydraulic system of the rotary drilling rig adopts negative flow control technology, matched with a large-displacement main pump and a low-speed engine. This combination effectively reduces fuel consumption of the equipment while improving working efficiency, achieving the dual advantages of energy saving and high efficiency, and lowering the overall operation cost.

5. Intelligent Operation Control: The rotary drilling rig is equipped with an advanced intelligent control system, which can realize automatic adjustment and display of mast verticality, automatic soil shake-off, automatic forward and reverse rotation of the rotary drive for spin-off, and ground-touching protection. These intelligent functions make the whole machine more intelligent, simplify the operation process, and make the operation more convenient and safer.

6. Excellent Working Stability: The rotary drilling rig adopts a TDP series hydraulic crawler chassis specially designed for rotary drilling rigs, equipped with a large-diameter slewing bearing. This chassis structure provides strong support for the whole machine, effectively improving the working stability and anti-overturning performance of the rotary drilling rig during high-intensity construction.

7. Convenient Transportation and Transfer: The whole machine of the rotary drilling rig can be transported directly without disassembling the Kelly bar. This design greatly simplifies the transportation and transfer process of the equipment, saves time and labor costs, and improves the overall construction efficiency.

XCMG XR178 Main technical Parameters

XCMG XR178 Technical Introduction

1、Chassis

It adopts XCMG TDP series retractable crawler chassis dictated for rotary drilling rigs which has high structural strength, large diameter slewing bearing and superior stability. The most mature dictated chassis for rotary drilling rigs in the industry has been applied to more than 2,000 piling equipment.

Engine System

Standard Cummins QSB7 electronically controlled turbocharged engine , have low fuel consumption and meet CN Ⅲ emission standard, which is energy-saving and environmentally friendly; Sufficient power reserve can meet the plateau construction requirements.

Hydraulic System

The main hydraulic system adopts negative flow control technology to obtain quick response and good control performance. Main pump with constant power control provides high working efficiency. The auxiliary system adopts load-sensitive technology to be energy-saving and efficient.

Rotary Drive

The rotary drive is equipped with crowd cylinder for feed and extraction. The driving sleeve is suitable for both friction and interlocking Kelly bars and has long service life.

Winch

The front-placed main and auxiliary winch both adopt multi-layer rope technology. The automatic soil shake-off function improves the spin-off efficiency of small diameter drilling tools. The main winch meets M6-T5 working conditions, and the standard double-layer rope is enough for 56m drilling depth.

Main winch

Auxiliary winch

Kelly Bar

Mechanical interlocking and friction Kelly bars are optional for XR178E rotary drilling rig. Mechanical interlocking Kelly bar is suitable for rock formations and friction Kelly bar is suitable for soil formations. There are four-section mechanical interlocking Kelly bar and five-section friction Kelly bar.

 Drilling depth (as listed)   

Drilling Mast

The segmented-plate thick box-type design of high-strength material combines strength and rigidity. It is equipped with double jib large parallelogram luffing mechanism to obtain larger support range, support angle and more stable operations.

Cab

Anti-noise cab with FOPS function is equipped with air conditioner, internal and external lighting, windshield wiper with water spray function, etc. Large skylight design provides a good view; upper protective net can be opened for easy cleaning. The seat, display screen and monitor screen can be adjusted to provide the operator with a comfortable working environment.

Electrical system

Rexroth RC28-14 controller and Hirschmann 10.4-inch displayer are adopted; the page layout takes full consideration of humanization and convenience; hierarchical processing is adopted, where data calibration and parameter modification require different permissions; wiring harness adopts knitting technology to be waterproof and wear-resistant; gadgets like rubber are applied to connectors to ensure waterproof performance.