Fly Cutter Reamer Manufacturer in China
Fly cutter reamers are back reamers used in Horizontal Directional Drilling (HDD) to enlarge the pilot hole and prepare a clean, stable bore for pipe pullback in cohesive soils such as clay, silt, and loam.
Our EnSheng Fly Cutter Reamers combine revolutionary structural engineering with powerful cutting capabilities, enabling faster penetration and lower cost per foot, even in challenging geology. Don’t let mediocre tools erode your project profits.
Common size of Fly Cutter Reamer
Our top-selling size combines ideal efficiency and adaptability, making it the preferred choice among diverse drilling projects. We also offer customization options, and more models are available upon request.
800mm
Ideal for reaming bores for small and medium-size conduits, fiber, power, and water lines in urban HDD crossings.
1000mm
A versatile choice for upsizing bores for larger-diameter steel or HDPE pipelines on municipal and industrial projects.
1200mm
Designed for demanding HDD crossings where large OD pipelines and long distances require a annular space.
Working Conditions & Applications
Fly cutter reamers are purpose-built for horizontal directional drilling in cohesive soils where torque control and good fluid mixing are critical.
| Category | Description |
| Best suited for | 1.Cohesive formations such as clay, silt, and loam 2.Soft to medium-density soils where a slicing action is more efficient than compaction 3.Bores that require stable walls and a pumpable slurry for trouble-free pullback |
| Not recommended for | 1.Hard rock or cemented formations – use a roller cone hole opener instead 2.Very coarse gravel or cobble where a barrel reamer or dedicated rock tool is more effective |
| Number of Blades | 1.Water and sewer mains 2.Gas and district heating pipelines 3.Power and telecom conduits 4.Road, river, and railway crossings where open-cut is not an option |
EnSheng Fly Cutter Reamer: Your Decisive Advantage Underground
The EnSheng Fly Cutter Reamer doesn’t just withstand the rigors of modern HDDs—it’s built to conquer them. It’s your shift from reactive maintenance to proactive performance improvement.
Unbreakable Core
Forged fuselage constructed of high-quality heat-treated alloy steel. Wings and central axis welded using proprietary technology.Capable of withstanding high torque and shock loads in soil layer.
Powerful Cutting Performance
World-class carbide cutting teeth ensures full-face cutting with every rotation, efficiently shearing and fragmenting the ground.This design maximizes ground contact, acting like a high-performance milling machine rather than simply plowing through the soil.
Excellent Hole Quality
A heavy-duty centralizing ring with a wear-resistant weld overlay. Unlike simple wear blocks, these are designed to actively guide the reamer and maintain hole integrity. Minimizing vibration and deflection,helps the reamer run true in the borehole.
Optimized Fluid Dynamics
Optimized system of carbide nozzles. The open-body design allows unobstructed fluid flow.Maximum flushing at lower pump pressures, preventing tool balling in water-swelling clays.
Product Parameter
We puts its full range of reamer solutions to work for you. Our lineup isready to handle a wide variety of ground conditions you run into.
| Outer Diameter | Connection | Connection |
| 12″/300mm | 2 3/8″REG(Pin*Box) | 2 3/8″REG(Box)*20T |
| 14″/350mm | 2 3/8″REG(Pin*Box) | 2 3/8″REG(Box)*20T |
| 16″/400mm | 2 3/8″IF(Pin*Box) | 2 3/8″IF(Box)*30T |
| 18″/450mm | 2 3/8″IF(Pin*Box) | 2 3/8″IF(Box)*30T |
| 20″/500mm | 2 7/8″REG(Pin*Box) | 2 7/8″REG(Box)*40T |
| 24″/600mm | 2 7/8″REG(Pin*Box) | 2 7/8″REG(Box)*40T |
| 28″/700mm | 3 1/2″REG(Pin*Box) | 3 1/2″REG(Box*Eye) |
| 32″/800mm | 4 1/2″REG(Pin*Box) | 4 1/2″REG(Box*Eye) |
| 36″/900mm | 4 1/2″IF(Pin*Box) | 4 1/2″IF(Box*Eye) |
| 40″/1000mm | 4 1/2″IF(Pin*Box) | 4 1/2″IF(Box*Eye) |
How to Choose the Right HDD Swivel for Your Project
Select the appropriate hdd swivel based on your drilling rig, pipe materials, and geological conditions to ensure safe and efficient pullback operations.
1. Start from your product pipe
Determine the actual outside diameter (OD) of the pipe or duct to be installed.
2. Define the target final bore size
In HDD practice, a common rule of thumb is to choose a final reamer diameter around 1.3–1.5 times the pipe OD, depending on soil conditions and project requirements.
3. Plan multiple reaming passes
Never jump from a small pilot to the final hole in one step. A good guideline is to keep each reaming pass no more than 1.5 times the diameter of the previous hole.
4. Match the reamer to your rig
Check the torque and pullback capacity of your HDD rig and compare it with the expected loads for the chosen reamer size and soil type.
Typical application scenarios
Designed with strict quality control to ensure the durability and efficiency of each Fluted Reamer.
Precision Forging and Machining
The tool body undergoes forging under thousands of tons of pressure to eliminate internal imperfections, followed by precision machining to ensure every dimension is perfectly accurate.
Expert Heat Treatment
A unique multi-stage heat treatment process not only imparts exceptional surface hardness to resist wear, but also ensures internal toughness.
Rigorous Quality Testing
The adapter and center shaft are welded into the tool body using a special process. A thick tungsten carbide layer covers surfaces, providing wear resistance far superior to ordinary steel.
Versatile Applications of Fly Cutter Reamer
Discover the diverse applications of our fly cutter reamer, designed to excel in various drilling environments. From infrastructure projects to challenging terrains, its adaptability ensures precision and efficiency, meeting the demands of different industries with ease.
Core Competitiveness
Experience unparalleled precision and efficiency, positioning our fly cutter reamer as an essential tool in advanced machining operations.
Enhanced Productivity & Cost Efficiency
Reduces structural failure risks, maximizes tool lifespan, and increases penetration rates.Shortens project cycles, cuts fuel costs, and lowers cost per foot for superior ROI.
Optimal Performance & Quality
Creates straight, stable holes, reducing friction and protecting pipelines. Lower torque allows longer crossings, ensuring smooth pullback and pipeline integrity.
Sustainable Investment & Maintenance
Simple upkeep extends reamer life, safeguarding your investment over time. This approach maximizes capital return, reduces total ownership costs.
Frequently Asked Questions
Have questions? We have clear answers. Here we’ve gathered you need to know about our fly cutter reamer—so you can make your purchase with complete confidence.
Our fly-cutter reamers are designed for a wide range of applications, suitable for compact, cohesive formations such as clay, silt, and loam. Crucially, we will configure the optimal cutter type based on your project’s specific geological report to ensure optimal performance and tool life.
It’s easy. Our reamers come standard with common API connection threads (such as REG and IF), compatible with most major brands of drill rigs. When you request a quote, simply let us know your drill rig model and drill pipe specifications, and our technical experts will confirm compatibility. If you require non-standard connections, our custom service is the perfect solution.
Yes, customization is one of our core strengths. Whether you require a special diameter, non-standard connections, or a unique cutter layout for a specific formation, we can manufacture it. Standard stock products typically ship within 1-2 weeks, while custom orders can take 4-6 weeks, depending on complexity. We always provide you with a precise production and shipping schedule.
We operate under a strict ISO 9001 quality management system. From sourcing raw materials like AISI 4145H alloy steel to heat treatment, machining, and welding, we have stringent quality control protocols in place at every step. As a manufacturer with over a decade of experience, our reputation is built on the durability and reliability of our tools.
Call Us or Fill Out the Form Below
Our service team will reply to you within 1 business day.
+86 13673277680
+86 13673277680
info@enshengbit.com
Office Address：Economic Development Zone (West Area), Hejian City, Hebei Province, China
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