hole washer

Product features

Fully customized design: According to the diameter of the borehole, geological characteristics and the model of the operation equipment, the length, hole diameter, spray Angle and brush head material of the hole washer can be precisely customized. It is suitable for various hole specifications ranging from 50mm to 1000mm, meeting the personalized needs of non-standard operation scenarios.

High-efficiency hole cleaning structure: It adopts a combination design of multi-channel jet and spiral brush head. High-pressure water flow can directly reach the rock debris accumulation area at the bottom of the hole. Combined with the rotation and cleaning of the brush head, the hole cleaning efficiency is increased by more than 40% compared with the traditional single-channel hole washing device, reducing the residual impurities in the hole.

Durable material selection: The main body is made of high-strength alloy steel, which is corrosion-resistant and wear-resistant. The key sealing components are made of oil-resistant rubber, which can adapt to various media such as mud and clear water, and its service life is 2 to 3 times longer than that of ordinary hole washers.

Intelligent adaptation design: It can be quickly connected with various equipment such as horizontal directional drilling machines and tunnel machines. It is equipped with a speed-adjustable drive interface and can be put into use without complex debugging, reducing the difficulty of equipment matching.

Core advantage

Thorough hole cleaning: Through the dual action of "high-pressure flushing + mechanical sweeping", rock cuttings, mud cakes and soft soil layers inside the hole can be effectively removed, ensuring a smooth hole wall and reducing the risk of jamming during subsequent hole expansion and pipe pulling operations. The construction qualification rate has been increased to over 98%.

Improved operation efficiency: Customized spray angles reduce water flow loss, combined with an efficient slag discharge path design, the single-hole cleaning time is shortened by 30% to 50%, indirectly enhancing the overall drilling project progress.

Significant cost optimization: Durable materials reduce the frequency of replacement, customized design avoids functional redundancy and waste, and the overall usage cost is reduced by 25%. At the same time, it reduces equipment failures caused by impurities in the holes and lowers maintenance costs.

Nanjing Shot Stone Quality Assurance: Relying on years of experience in customizing drilling tools, each hole washer undergoes over 10 quality inspection procedures including pressure testing and wear resistance tests, meeting industry safety standards and supporting 7× 24-hour technical after-sales response.

Application scenarios

Horizontal directional drilling project: In the laying of urban underground pipelines (gas, cables, water pipes), it is used for cleaning the holes after pre-reaming, providing a clean passage for pipe-pulling operations.

In the field of geological exploration: In the exploration boreholes for metallic and non-metallic minerals, clear the residual rock cores in the holes to ensure the accuracy of subsequent sampling.

Municipal infrastructure construction: Advanced geological prediction borehole cleaning for metro and tunnel projects to prevent impurities from affecting the accuracy of detection data.

Mining operations: After the construction of ventilation and drainage holes in the mine, remove the debris inside the holes to ensure the unobstructed flow of the channels.

Water conservancy project construction: Drilling and cleaning of anti-seepage walls for reservoirs and DAMS to prevent mud deposition from affecting the quality of wall pouring.

Working environment

Geological adaptability: It is suitable for various strata such as clay, sand, pebble layers, and soft rock. Especially in water-rich strata, it can efficiently remove mud mixtures.

Medium compatibility: It can operate stably in clear water, mud (water-based/oil-based), drilling fluid and other media, and its corrosion resistance meets the requirements of long-term immersion.

Environmental tolerance: The operating temperature range is -15 ℃ to 60℃, and it can adapt to different working environments such as open-air fields and underground tunnels. With a waterproof rating of IP65, it is not afraid of rain or spray environments.

Pressure adaptation range: Supports working pressure adjustment from 0.5 to 10MPa. It can flexibly match the flushing intensity according to the hole depth and diameter, and is suitable for operations from shallow holes to medium-deep holes (≤300 meters).

Nanjing WANSHIHDD Engineering Technology Co., Ltd. specializes in the research and development and production of customized hole washers and other drilling tools, providing customized solutions to help various drilling projects improve quality and efficiency. If you need to customize parameters according to specific working conditions or obtain product quotations

(Note: The specific parameters of the product can be adjusted according to customer requirements. The actual configuration is subject to the contract agreement.)