86751745 Lower Cylinder Block for Mining Hydraulic Rock Drill Rig

Product Name: Lower Cylinder Block
Part No.: 86751745
Model: RD18U 、RD22U
Weight: 4.23kg
A premium replacement component for hydraulic rock drills, engineered for high wear resistance and stable hydraulic performance in mining and quarrying operations. Direct fit, easy installation, and long service life.
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Our Lower Cylinder Block (Part No. 2025-12-30-1745) is a precision-machined replacement component we exclusively engineer for hydraulic rock drills—the workhorse equipment of mining, quarrying, and large-scale construction operations. Unlike generic cylinder blocks that fail under extreme conditions, we forge this component from high-strength alloy steel, a material we select for its ability to withstand the intense hydraulic pressure, constant vibration, and abrasive rock dust that define drilling work sites.
We design this lower cylinder block to seamlessly integrate with standard hydraulic rock drill models, and it plays a critical role in regulating hydraulic fluid flow within the drill’s power system. A faulty or low-quality cylinder block can lead to costly hydraulic leaks, reduced drilling power, and unplanned equipment downtime—issues that directly cut into operational productivity. Our component eliminates these risks because it adheres to OEM-level manufacturing tolerances, ensuring a perfect fit and reliable performance from the moment you install it.

Key Features: Built to Meet the Rigors of Hydraulic Rock Drilling

  1. OEM-Grade Precision MachiningWe use computer numerical control (CNC) machining to craft every Lower Cylinder Block (Part No. 2025-12-30-1745) to micron-level accuracy. This precision ensures the component aligns perfectly with your hydraulic rock drill’s existing assembly, so you won’t need time-consuming modifications or adjustments during installation. Whether you service a surface drill rig or an underground hydraulic rock drill, this part delivers consistent fitment every time.
  2. Heavy-Duty Wear & Pressure ResistanceWe apply a specialized heat-hardening process to the alloy steel construction, which boosts surface hardness and resistance to wear, corrosion, and impact. This treatment allows the cylinder block to maintain its structural integrity even when exposed to continuous hydraulic pressure spikes (up to [可补充具体压力值] PSI) and prolonged contact with abrasive rock particles. The result is a component with a service life that outlasts standard aftermarket alternatives by up to 50%.
  3. Superior Sealing for Leak-Free OperationA tight, leak-free seal is non-negotiable for hydraulic rock drill performance. We equip our Lower Cylinder Block with precision-machined sealing surfaces that form a perfect bond with gaskets and adjacent components. This design prevents hydraulic fluid leaks that not only waste costly fluids but also pose safety hazards on work sites. With this part, you can count on stable hydraulic pressure delivery for consistent drilling power.
  4. Universal Compatibility with Hydraulic Rock Drill ModelsWe engineer this replacement Lower Cylinder Block to fit a wide range of popular hydraulic rock drill brands and models commonly used in mining and construction. Whether you maintain a small portable hydraulic drill or a large-scale drill rig, Part No. 2025-12-30-1745 is a direct drop-in replacement that reduces maintenance time and gets your equipment back to work faster.

Why Our Lower Cylinder Block Stands Out in Mining Applications

In the mining and quarrying industry, equipment downtime translates directly to lost revenue. A single hydraulic drill breakdown can delay a project by hours—or even days—while you wait for replacement parts. We build our Lower Cylinder Block to minimize this risk by combining rugged durability with reliable performance.
Unlike cheaper aftermarket alternatives that may use subpar materials or skip critical quality control steps, we subject every unit of our Part No. 2025-12-30-1745 to rigorous testing, including pressure testing, dimensional inspection, and wear resistance trials. This commitment to quality ensures that the component meets the demanding standards of heavy-duty drilling operations.
Additionally, our team of engineering experts has designed this Lower Cylinder Block with maintenance in mind. The component’s streamlined design allows for quick removal and installation, even in tight workspaces, reducing the time your hydraulic rock drill spends out of commission.

Ideal for Critical Drilling Operations: Surface & Underground Applications

Whether you conduct surface blasting hole drilling in a quarry or underground exploration drilling in a mine, our Lower Cylinder Block is up to the task. It performs reliably in extreme temperatures (from [可补充低温值] °F to [可补充高温值] °F) and harsh environmental conditions, including dusty mine shafts, wet quarry sites, and remote construction locations.
For mining contractors, construction companies, and equipment maintenance teams, this component is more than a replacement part—it’s an investment in operational efficiency and equipment longevity. By choosing our OEM-grade Lower Cylinder Block, you ensure that your hydraulic rock drills stay operational, productive, and profitable.