As a premier solutions provider and premium supplier deep-rooted in the global directional drilling and trenchless industry, we deliver high-reliability positive displacement mud motor systems to clients in over 80 countries and regions worldwide.
We do not merely supply individual high-quality single motors and components; we excel in customizing complete Bottom Hole Assembly (BHA) power solutions tailored precisely to your drilling rig tonnage, geological hardness, and guidance tool specifications. Through optimized hydraulic matching and structural innovations, we empower contractors worldwide to seamlessly convert fluid energy into formidable drill bit torque.
Core Technical Advantages:
In heavy-duty Horizontal Directional Drilling (HDD), risks like stuck pipes, stator chunking, and catastrophic downhole tool loss are unacceptable. Our mud motor series inherently features the following technological advancements:
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Innovative “Equal Wall Thickness Stator with Inner Lining” Technology
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Conventional stators suffer from uneven rubber thickness, which leads to thermal stress concentration and premature chunking under high temperature and pressure.
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Our series introduces an innovative, high-precision inner lining pre-fabricated inside the steel tube. This guarantees an absolutely uniform rubber layer, vastly enhances the bonding strength between the elastomer and the metal wall, doubles the fatigue life, and ensures ultra-stable volumetric efficiency under continuous high loads.
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Ultra-Short Body Architecture – High Steerability, Reducing “Bit-to-Bend” Distance
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Engineered specifically for high build rates (sharp steering responsiveness) and optimal trajectory control. By utilizing a compact, integrated design that connects the universal joint directly to the lower drive shaft, both the power section and overall motor length are drastically minimized.
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This significantly shortens the Bit-to-Bend distance and the distance to the MWD tracking system, eliminating latency in trajectory feedback. Guidance operators can execute precise, real-time adjustments for tight-radius turns.
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Double Anti-Drop Structure & Tungsten Carbide (TC) Heavy-Duty Bearings
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The bearing assembly and high-load transmission surfaces are embedded with premium tungsten carbide (TC) hard alloy to withstand severe mechanical and torsional fatigue from hard rock vibrations.
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Equipped with a front-positioned Safety Catch Sub (Double Anti-Drop Structure). In the rare event of mechanical failure or over-torque breakage, it instantaneously locks internal components, completely preventing disastrous tool loss downhole and safeguarding your assets.
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Temperature-Adaptive Configuration
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Based on the expected downhole or wellbore temperatures of your project, we customize the stator/rotor elastomer pairing and clearance tolerances. This prevents premature thermal aging and keeps the fit in the “golden zone,” ensuring zero fluid/power loss.
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Core Component Breakdown
Every motor is processed via high-precision CNC machining and complies with a rigorous QC quality traceability system, ensuring seamless downhole synergy across modules:
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Power Section: A high-precision helical metal rotor rotating within an equal-wall-thickness lined stator, transforming mud flow rate into steady mechanical rotation.
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Transmission Section: A high-strength Constant Velocity (CV) joint assembly and housing that converts the eccentric motion of the rotor into concentric rotation of the drive shaft.
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Bearing Assembly: A heavy-duty bearing housing integrating multiple sets of high-performance thrust bearings and TC radial bearings to absorb crushing counterforces from the formation.
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Subs & Connections: Top Sub and Safety Catch Sub standard-equipped with universal threads, enhancing system sealing and downhole safety.
Specification Matrix & Technical Parameters
We offer a comprehensive mud motor platform ranging from slim-hole and medium-bore to heavy reaming applications.
1. Product Line Matrix
| Series | OD Range | Typical Formations & Workloads | Options & Connections |
| Slim-Hole Series | 73mm – 120mm(2-7/8″ – 4-3/4″) | Small-diameter municipal pipe laying, micro-blind hole guidance, oilfield workover. | High speed, highly flexible configurations. |
| Medium-Bore Heavy-Duty Series | 146mm – 197mm | Heavy HDD crossings (rivers, utilities), main directional drilling pipelines; preferred choice for mid-to-large tonnage rigs. | (Optional) Ultra-short equal wall thickness integrated design; high-flow erosion-resistant bearings. |
| Large-Bore & Reaming Series | 203mm – 244mm +(8″ – 9-5/8″+) | Heavy mainline final reaming, large surface hole drilling. | Ultra-high torque, maximum mud flow bypass capacity. |
2. Popular Product Models
| Product Model | Flow Rate Range (L/s) | Speed Range (rpm) | Working Torque (N·m) | Pressure Drop (MPa) | Overall Length (m) |
| 127 | 15–25 | 90–150 | 4,054 | 3.2 | 3.5 |
| 135 | 18–30 | 87–144 | 4,200 | 3.5 | 3.5 |
| 172 | 19–38 | 83–166 | 7,800 | 4.5 | 4.2 |
Transparent & Predictable Lifecycle Cost Control (TCO)
We offer more than just premium drill tool sales; we provide a transparent, standardized maintenance system to minimize your Total Cost of Ownership (TCO):
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200-Hour Operational Warranty: Under standard hydraulic parameters and operation guidelines, all products come with a 200-hour guaranteed continuous drilling warranty period.
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Cost-Effective Full Inspection & Refurbishment Policy:
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After working 200 hours in harsh rock formations, we recommend a full teardown and inspection.
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We provide completely transparent component wear evaluation. Under normal wear conditions (no structural hard alloy fractures), the flat fee for teardown, seal replacement, and elastomer adjustment is highly transparent, around CNY 10,000 (~USD 1,475).
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Post-refurbishment, the motor system can deliver another 120+ hours of stable, high-efficiency operation, maximizing your asset’s ROI.
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(Note: Due to market fluctuations in tungsten carbide and raw material costs, if severe operational misuse triggers large-scale TC damage, component wear evaluation will be synced transparently).
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Agile Supply Chain: Leveraged by our extensive supply network, core custom orders and standard specifications can usually be dispatched within approximately 1 week.
Mud Motor Customization & Technical Inquiry Form
To help our application engineers precisely match or customize the optimal motor configuration for your rig capacity, geological conditions, and steering tools, please provide the following 6 details when submitting an inquiry:
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Stabilizer Type & OD: Do you require a stabilizer? Spiral blades (3-rib) or straight blades (5-rib)? What is the required maximum OD? (Crucial for downhole stabilization and vibration damping).
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Bent Housing Angle: Do you prefer a fixed or adjustable bent housing? (Standard range is 0° to 2.5° to balance build rate and tool life).
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Expected Wellbore/Downhole Temperature: What is the estimated maximum temperature? (Crucial for selecting the ideal adaptive rubber compound).
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Thread Connection: What is the connection type of your drill pipe or steering sub? (e.g., standard 5-1/2″ IF, 5.5 HF, etc.).
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Mud & Hydraulic Parameters: What is your estimated flow rate range, mud weight (ppg/density), pump pressure, and fluid type?
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Formation Type & Rock Hardness: Is the target formation sandy gravel, high-viscosity clay, or high-hardness hard rock?
