98.5mm stepped titanium dental disks are widely requested as milling blanks for dental CAD/CAM applications. While the outside diameter is an important specification, the stepped-edge profile, overall thickness and dimensional tolerances are equally important when selecting a suitable blank for a particular milling system.
For dental laboratories, distributors and OEM buyers, understanding these dimensional requirements can help avoid compatibility problems and unnecessary sample revisions. Sunrise Industrial supports precision CNC machining of Grade 5 titanium dental discs and disks according to customer drawings, samples and technical specifications.
What Is a 98.5mm Stepped Titanium Dental Disk?
A stepped titanium dental disk is a round titanium milling blank with a specially machined edge profile. Unlike a simple flat-sided circular blank, the stepped design includes a defined shoulder or recessed section around the outer edge.
This geometry is intended to work with compatible holding or clamping systems used in dental CAD/CAM milling equipment.
The term 98.5mm stepped titanium dental disk generally describes the nominal outside diameter and stepped-edge design. However, different milling systems may require different shoulder dimensions, thickness relationships and tolerances.
Therefore, a nominal diameter of 98.5mm does not automatically guarantee compatibility with every dental milling machine.
Understanding the Stepped-Edge Structure
The stepped-edge structure is one of the most important features to confirm before manufacturing a custom titanium dental disk.
Stepped-edge profile of a titanium dental milling blank.
Important Dimensions to Confirm
| Dimension | Description |
|---|---|
| Outside Diameter | Nominal diameter of the titanium disk, commonly specified as 98.5mm. |
| Overall Thickness | Total thickness measured between the outermost reference surfaces. |
| Step Height | Vertical distance between the relevant stepped surfaces. |
| Step Width | Radial width of the shoulder or stepped section. |
| Central Section Thickness | Thickness of the central portion, which may differ from the overall thickness. |
| Dimensional Tolerances | Permitted variations in diameter, thickness, step geometry and other critical dimensions. |
For OEM manufacturing, these dimensions should be clearly identified on a technical drawing. If a drawing is unavailable, an existing sample can be used as a reference for dimensional review.
Common Thickness Options for 98.5mm Titanium Dental Disks
Titanium dental milling blanks are requested in different thicknesses depending on the intended milling project and the requirements of the customer's equipment.
Common thickness requests include:
| 98.5mm × 12mm | 98.5mm × 16mm |
| 98.5mm × 18mm | 98.5mm × 20mm |
Additional thicknesses, including 10mm, 14mm, 22mm and 25mm, can also be discussed according to manufacturing requirements.
For stepped titanium dental disks, buyers should confirm how the specified thickness is measured. Some designs may have a different central section thickness and stepped-edge height.
Clearly defining these dimensions helps the manufacturer understand the required geometry and prepare an accurate quotation.
Grade 5 Titanium for Dental CAD/CAM Milling Blanks
Grade 5 titanium, also known as Ti-6Al-4V, is a titanium alloy containing aluminum and vanadium. It offers a combination of high strength, relatively low density and good corrosion resistance.
These characteristics make Grade 5 titanium suitable for consideration in precision-machined components and dental milling blank applications where the specified material properties meet the customer's requirements.
However, material grade and material specification should not be treated as interchangeable. Buyers may require particular chemical composition limits, mechanical properties, material certificates or additional documentation.
For dental projects, customers should identify the exact material standard and documentation requirements rather than relying only on the general description of Grade 5 titanium.
CNC Machining and Dimensional Inspection
Precision CNC machining is used to produce titanium dental disks with controlled outside diameters, thicknesses, stepped-edge profiles and surface conditions.
Depending on the design, manufacturing may involve material preparation, CNC turning, additional machining operations, deburring and dimensional inspection.
Key Inspection Considerations
For stepped titanium dental discs, dimensional inspection should focus on the features that influence the fit between the blank and the customer's milling holder.
Dimensional inspection of a precision-machined titanium dental disk.
- Outside diameter and dimensional tolerance
- Overall thickness and central section thickness
- Stepped-edge height and width
- Flatness and parallelism where specified
- Surface condition and edge quality
- Visual inspection for burrs, scratches and machining defects
Inspection methods and acceptance criteria should follow the approved drawing and agreed quality requirements. Critical dimensions may require suitable gauges or precision measuring equipment.
Why Sample Evaluation Matters Before Bulk Orders
For dental laboratories and distributors purchasing stepped titanium dental disks from a new supplier, sample evaluation is an important part of the purchasing process.
Even when the nominal diameter and thickness match the requested specifications, small differences in stepped-edge geometry may affect how the blank fits into a particular milling holder.
A practical sample evaluation can include dimensional measurement, visual inspection and checking the blank against the customer's actual holding system.
After the sample has been evaluated and the specifications are confirmed, the approved drawing and inspection requirements can be used as references for subsequent production orders.
OEM Purchasing Guide for Stepped Titanium Dental Disks
When requesting a quotation for custom titanium dental disks, providing complete technical and purchasing information can reduce unnecessary communication and help the manufacturer calculate production costs more accurately.
Recommended RFQ Information
- Material: Titanium grade and required material specification
- Diameter: 98.5mm or other required size
- Thickness: Required thickness for each specification
- Edge Profile: Stepped-edge dimensions and tolerances
- Surface Requirements: Machined surface condition and any special requirements
- Quantity: Sample quantity and estimated bulk order quantity
- Documentation: Material certificates and inspection records if required
- Reference: Technical drawing, existing sample or milling-holder specifications
For customers purchasing multiple thicknesses, a complete size and quantity list is especially useful. It allows the manufacturer to review material requirements, machining arrangements and potential production efficiencies across the order.
Custom Titanium Dental Disk Manufacturing at Sunrise Industrial
Sunrise Industrial is a China-based precision CNC machining manufacturer supporting titanium dental discs, custom titanium components and OEM manufacturing projects.
For titanium dental milling blanks, our manufacturing support includes standard round discs, stepped titanium disks, square titanium blocks and customized dimensions according to customer requirements.
We focus on material preparation, precision CNC machining, dimensional inspection and consistent production quality. Sample orders and repeat manufacturing requirements can be discussed according to the specific project.
Customers looking for standard sizes or customized 98.5mm stepped titanium dental disks can also review our Titanium Dental Disc product page for additional specifications and manufacturing information.
Frequently Asked Questions
Are all 98.5mm stepped titanium dental disks interchangeable?
Not necessarily. Although the nominal diameter may be the same, stepped-edge dimensions and tolerances can vary between designs. Compatibility should be confirmed using the required drawing or milling-holder specifications.
What thicknesses are available for stepped titanium dental discs?
Common requests include 12mm, 16mm, 18mm and 20mm. Other thicknesses can be discussed according to customer specifications and manufacturing feasibility.
Can Sunrise Industrial manufacture titanium dental disks from samples?
Yes. Existing samples can be reviewed as references for dimensional measurement and drawing preparation. Final manufacturing requirements should be confirmed before production.
Can samples be ordered before bulk production?
Sample orders can be discussed according to the required material, dimensions and quantity. Customers can evaluate the samples before confirming their bulk purchasing requirements.
Looking for a 98.5mm Stepped Titanium Dental Disk Supplier?
Sunrise Industrial supports custom Grade 5 titanium dental discs and disks for CAD/CAM milling applications, including 98.5mm stepped-edge designs, different thickness options and OEM manufacturing requirements.
Send us your required diameter, thickness, stepped-edge dimensions, quantity and any available drawings or samples. Our team can review your specifications and discuss suitable manufacturing arrangements.


