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MADE-TO-ORDER PCD REAMERS

Project-Engineered PCD Reamers

Made-to-order PCD reamers for cylinder blocks, cylinder heads, valve bodies and other precision bores in non-ferrous and selected non-metal components. Each tool is developed around the bore requirements, guide concept, machine interface and coolant supply.

How We Develop a Reamer for Your Component

A PCD reamer is not a stock item. Each project moves from component review and tool concept to approved design, manufacture and inspection.

The component defines the solutionWe build the application around the cylinder block, cylinder head, valve body or complex bore—not around a standard reamer list.
One project needs one coordinated designWe develop the cutting tool, guide concept, machine interface, coolant delivery and inspection plan as one solution.
Accuracy must be designed and verifiedWe control the approved tool specification through manufacture and dimensional inspection. Workpiece results also depend on the machine, fixture, coolant and stock allowance.

To Get Started:Share the component drawing, bore tolerance, machine interface and current machining issue.

PCD reamers and stepped reaming tools, with a long reamer resting on clear supports
  • Complete Project Design
  • High Bore Accuracy
  • Low Tool Runout
  • Application Engineering Support

PCD Reamer Types & Shank Interfaces

SUNDI PCD reamers use polycrystalline diamond cutting edges to finish precision bores. Cylindrical, HSK, flange and BT shanks are available alongside drill-reamer, combination and guide-pad designs. The component drawing, machine interface and bore requirements determine the tool configuration.

PCD Reamer with Cylindrical Shank

Flexible holder setups where the machine and guide arrangement suit a cylindrical shank.

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PCD Reamer with HSK Shank

Match the HSK interface to the spindle, gauge length and coolant requirements.

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PCD Reamer with Flange Shank

Flange interfaces for projects requiring defined axial positioning.

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PCD Reamer with BT Shank

BT interfaces matched to the machining center and required gauge length.

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PCD Drill Reamer

Combined drilling and reaming where the drawing and process support a single-tool operation.

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Combination PCD Reamer

Multi-stage designs for related bore diameters when one-pass finishing suits the setup.

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PCD Reamer with Guide Pads

Guide-pad designs for bores requiring additional guidance for roundness and finish.

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Resharpening and PCD Tip Replacement

Precision resharpening and PCD tip replacement are available for returned tools. The repair approach depends on the body condition, remaining PCD material and required geometry.

  • Precision Resharpening: Utilizing advanced grinding technology to restore sharp cutting edges and precise geometries.

  • PCD Blade Replacement: For severely damaged tools, we offer high-quality blade replacement and re-brazing services.

  • Performance after repair: Achievable performance depends on the condition of the returned tool and the remaining PCD material. Request an evaluation for your tool.

  • Repair options: Request a resharpening or re-tipping quote to compare repair with replacement for your tool.

Bore Quality and Application Planning

Specify a PCD reamer when your process calls for finishing a prepared hole in an agreed non-ferrous or non-metal material. Share the bore diameter, tolerance, surface-finish target and any related datum requirements. If you are replacing a carbide reamer, include its current tool life and the size or finish problem you need to solve.

The tool design brings together cutting geometry, guide arrangement, machine interface, coolant delivery and stock allowance. Share the prepared-hole process, coolant supply and any chip-packing, taper or vibration problems. Tool inspection values describe the tool itself; the required hole quality must be defined separately on the component drawing.

  • High Accuracy and Efficiency
  • High-speed Cutting Feed Rate
  • Excellent Roughness
  • Fewer Process Steps Low cycle time
  • Maximum tool life
  • Re-grinding to reduce the cost

Automotive

Sundi has been supplying cutting tools and solutions for automotive manufacturing for decades and is recognized as reliable quality, consistent, and service source.
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Electronics

Electronics manufacturing requires high-quality and reliable micro and precision cutting tools. We are proud to offer professional solutions and tools in China.
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Aerospace

The combination of PCD reamers solutions for Aerospace Manufacturing improves the efficiency of machining carbon fiber, aluminum alloy, etc.
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Metal Process

Through years of engineering and machining experience, we can provide complicated, high-precision cutting tools for precision manufacturing in all industries.
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How We Made the PCD Reamers

Step 1 · Analysis & Design

Define the reamer design around the requirements of your application.

Application
Discuss the machining task and understand the customer's requirements.
Quality targets
Establish the required accuracy, surface roughness and tool life.
Tool design
Develop a PCD reamer design for the intended application.
Step 1 Aalysis and Design

Step 2 · Rough Machining

Prepare the tool body and chip grooves before assembling the cutting blades.

Tool body
Form the body through CNC turning, milling and cylindrical grinding.
Chip grooves
Machine the flutes using 5-axis CNC equipment.
Heat treatment
Include heat treatment in the body manufacturing process.
Step 2 Rough Machining

Step 3 · Laser Cutting

Cut the PCD disc into blade shapes ready for the next manufacturing step.

Layout
Calculate and arrange the blade profiles in the cutting software.
PCD blades
Laser-cut the disc into the required individual blades.
Consistency
Maintain consistent blade dimensions for the next operation.
Step 3 Laser Cutting

Step 4 · Vacuum Brazing

Join the PCD blades to the tool body in a vacuum brazing furnace.

Blade positioning
Place the PCD blades in the brazing grooves with silver solder.
Furnace cycle
Use a controlled vacuum-brazing cycle matched to the PCD tip and body design.
Brazed joint
Melt the solder to bond the blades securely to the tool body.
Step4 Vacuum Brazing

Step 5 · Wire Cutting

Produce complex PCD cutting profiles using 5-axis Vollmer wire cutting.

Profile machining
Use 5-axis wire cutting to create complicated reamer geometries.
Cutting finish
Cold-oil processing is used to finish applicable tool edges. The edge-finish requirement is defined for the tool and is separate from the workpiece surface-finish target.
Equipment
Three Vollmer machines support this manufacturing operation.
Step5 Wire Cutting

Step 6 · Cylindrical Grinding

Refine the cutting edge when the application requires a smoother hole finish.

Surface finish
Grind the cutting edge to improve the finish of the PCD tool.
Edge preparation
Reduce edge sharpness where needed to limit hole-wall vibration.
Dimensional accuracy
Control the tool cutting diameter to within 0.002 mm after cylindrical grinding where this process applies. This is a tool manufacturing requirement, not a finished-hole tolerance guarantee.
Step 6 Cylindrical Grinding

Step 7 · Inspection

Check the completed cutting geometry before handing the tool to quality control.

Geometry checks
Use Zoller equipment to inspect diameters, angles and arcs.
Programmed inspection
Check the tool geometry against the inspection program before QC.
Runout and dynamic balance
Check runout and dynamic balance separately on applicable HSK and BT shank tools. Verify straightness and concentricity against the tool specification.
Step 7 Measure

Step 8 · Surface Treatment

Apply the requested surface treatment and identification markings.

Surface treatment
Provide sandblasting or oxidation treatment to suit customer requirements.
Appearance & protection
Improve the surface appearance and help prevent rust.
Tool identification
Add laser-marked model information as required.
Step 8 Surface Treatment

Custom PCD Reamers for Precision Hole Finishing

Share your workpiece material, hole tolerance, surface finish, and production targets. Our engineering team will help specify a custom PCD reamer solution.
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Project Support

From Drawing to Tool Design

We develop the reamer from your component drawing and machine setup. A 3D model of the workpiece or cutting tool can support design review, followed by manufacture and dimensional inspection against the agreed tool specification.
pcd reamer dill the cylinder head PCD Рассверлители

Design and Delivery Support

  • Application Support

    Discuss the application and technical support needs with our engineering team.
  • 3D Model

    Re-design and 3D modeling of workpieces or cutting tools
  • Repair Options

    Compare repair and replacement options using a quote for your tool.
  • Project Schedule

    Lead time is confirmed after design approval and depends on the tool design and order quantity.
  • Shipping Options

    Shipping method and transit time are agreed for the destination and order.
  • After-Sales Support

    Confirm the service and warranty terms applicable to your order.

Review of PCD Reamers

What Is Our Customer Reviews

The Usage of PCD Reamer

Feedback on our PCD reamers use has been extremely positive

Glenn

Glenn

CEO

★★★★★

The PCD tools you have made have worked most excellently. Sundi solved a tooling problem for me that no one else would, I greatly appreciate that.

Richard

Richard

Purchasing Manager

★★★★★

Last sample are working great ,We are rebooking them and already pay for 20 pcs cause we firmly satisfy with your item.

FAQ

What Should I Send for a Quotation?

Send a PDF, DXF or STEP component drawing with material, bore dimensions and tolerances, surface-finish target, machine interface, coolant supply, stock allowance and your current machining issue. Include your contact details so our engineers can follow up on the application.

How Is a PCD Reamer Matched to My Bore Requirements?

The bore drawing defines the required diameter, tolerance, surface finish and relationship to other features. Share the workpiece material, prepared-hole dimensions, guide arrangement, machine interface and coolant supply so we can develop the reamer for that setup. Tool inspection values describe the tool itself and are distinct from the finished-hole requirements. Our engineers offer this application review free of charge.

Are PCD Reamers Available From Stock?

No. SUNDI PCD reamers are made to order for the component drawing and machine interface.

How Long Does Delivery Take After Design Approval?

Lead time depends on tooth count, shank type, complexity and quantity after design approval. Manufacturing and shipping schedules are confirmed for the order.

Do You Inspect Before Shipment?

Yes. Tool geometry is checked against the agreed specification before shipment. If you need an inspection report, confirm the required contents and delivery arrangements when placing the order.

Can You Resharpen or Replace PCD Tips?

Yes. Resharpening and PCD tip replacement or re-brazing are available for returned tools. The repair options and expected performance depend on the body condition, remaining PCD material and required geometry.

What Kinds of Payment Items Do You Accept

We are a direct tooling manufacturer, and T/T transfer is available. For the sample with a small amount, we can also accept credit cards, papal, western union, etc.

Documents

Read this catalog online. You can also save a PDF copy from the reader.

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Discuss Your Application

Your contact details and project files will be used to respond to your inquiry.

Prefer email? info@sundicuttingtools.com

Get in Touch

Tell us about your cutting tools requirements, or email info@sundicuttingtools.com.

Your contact details and project files will be used to respond to your inquiry.

Prefer email? info@sundicuttingtools.com

Catalog

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