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Drawing-based manufacturing
Diameter, height, wall thickness, bottom thickness, rim geometry and functional surfaces are evaluated individually.
Custom Molybdenum Crucibles
Custom Molybdenum Crucibles
Molybdenum crucibles manufactured to customer drawings for vacuum furnaces, evaporation systems, laboratory equipment and controlled-atmosphere high-temperature processing.
PDF / STEP drawing reviewMachined · Sintered · FormedMaterial certificates available
Material optionsPure Mo · TZM on request
Manufacturing routesMachined · Sintered/Forged · Formed
Drawing formatsPDF · STEP/STP · DWG · DXF
Order typesPrototype · Small batch · Repeat
Overview
Molybdenum Crucibles Made to Your Drawing
Aulister supplies custom molybdenum crucibles based on customer drawings, PDF files, STEP models or approved samples. Depending on geometry, wall thickness, quantity and service conditions, the crucible may be machined from solid material, produced from a sintered or forged blank, or formed from molybdenum sheet.
Material grade, dimensions, tolerances, surface condition, inspection requirements and operating environment are reviewed before quotation and production.
Send a drawing for review →Why Aulister
Why Buyers Choose Aulister
Material options
Commercially pure molybdenum is commonly considered, while TZM or other Mo alloys may be evaluated for specific requirements.
Flexible quantities
One-off prototypes, replacement crucibles, small batches and repeat orders can be reviewed.
Inspection & documentation
Material certificates, dimensional inspection reports and agreed traceability records can be supplied when specified.
Product Image
Product Shown in the Supplied Photo
The photograph shows a cylindrical crucible with a thick wall, a flat machined rim, a closed flat bottom and a smooth internal cavity. The visible geometry is consistent with a machined crucible, but the photograph alone cannot confirm material purity, dimensions, tolerances, density, heat treatment or the original manufacturing route.
ItemVisible from photoConfirm before quotation
ShapeCylindrical cup with closed bottomOD, ID and total height
Wall & bottomRelatively thick-wall constructionWall thickness, bottom thickness, corner radius
RimFlat machined top edgeChamfer, radius, flatness, sealing requirement
SurfaceMachined exterior, smooth inner cavityRequired roughness, polishing, cleaning level
MaterialCannot be verified visuallyPurity, grade, standard, certificate requirement
Options
Crucible Types and Manufacturing Routes
Manufacturing route depends on the required geometry, wall thickness, quantity and service conditions.
Machined Crucible
Suitable for thick walls, small or medium sizes, precise geometry and prototypes.
Confirm stock size, machining allowance, corner radii and material utilization.Sintered or Forged Blank + Machining
Suitable for larger sections or parts requiring a prepared blank.
Confirm blank availability, density, grain condition and final machining.Formed Sheet Crucible
Suitable for thinner walls and selected production quantities.
Confirm sheet thickness, draw depth, tooling and minimum corner radius.Custom-Profile Crucible
For stepped walls, flange rims, holes, grooves or special bottoms.
Drawing review, datum scheme and critical dimensions are required.Material
Material Choices
Final material selection should follow the drawing, purchasing specification and service conditions.
| Material | General description | Information needed for RFQ |
|---|---|---|
| Pure molybdenum | Common choice for vacuum and controlled-atmosphere high-temperature components. A typical minimum purity of 99.95% may be specified, subject to the agreed material standard and certificate. | Purity, standard, product form and certificate requirements |
| TZM alloy | Molybdenum alloy that may be considered where higher strength or creep resistance is required. Suitability depends on temperature, load, geometry and atmosphere. | Service temperature, load, cycle, atmosphere and applicable specification |
| Other Mo alloys | Special grades can be reviewed when the customer drawing or purchasing specification identifies the exact grade. | Complete material designation and acceptance criteria |
Technical
Customizable Specifications
The following items can be specified. Final manufacturability and tolerances are confirmed after drawing review.
| Parameter | Available option or drawing confirmation |
|---|---|
| Geometry | Straight-wall, tapered, stepped, flanged or other custom profiles |
| Dimensions | Outside diameter, inside diameter, height, wall thickness and bottom thickness to drawing |
| Machining | Turning, boring, milling, drilling, grinding and suitable finishing processes |
| Surface condition | As-machined, ground or polished on specified functional surfaces |
| Edges | Sharp-edge removal, chamfers or radii as shown on the drawing |
| Inspection | Material certificate, dimensional report and other agreed inspection records |
| Drawing formats | PDF with STEP or STP preferred; DWG, DXF and physical samples may also be reviewed |
| Quantity | Prototype, small batch and repeat-order requirements can be evaluated |
Technical note: The melting point of molybdenum must not be treated as the allowable service temperature of a finished crucible. Actual operating limits depend on atmosphere, load, contents, geometry, joining method, thermal cycling and contamination risk. Prolonged high-temperature use in oxidizing atmospheres requires special evaluation.
Applications
Typical Application Areas
Application details help define material selection, geometry, inspection and quotation.
Vacuum Furnaces & Hot Zones
Crucibles and containers for heating, sintering and thermal processing under vacuum or an agreed protective atmosphere.
Evaporation & Coating Equipment
Source containers and evaporation components where process material, temperature and vacuum level are defined by the customer.
Laboratory & Research Equipment
One-off crucibles and experimental containers for controlled thermal tests and material development.
High-Temperature Material Processing
Containers for powders, metals or compounds when chemical compatibility has been verified by the equipment designer or end user.
Representative Drawing-Based Request
What an Accurate Molybdenum Crucible RFQ Looks Like
A useful molybdenum crucible inquiry should describe the complete geometry and service conditions rather than only stating the outside diameter and height.
This is a quotation template, not a completed delivery case.
ProductCylindrical molybdenum crucible with closed bottom
MaterialPure molybdenum, required purity and standard to be stated
DimensionsOD × ID × height, plus bottom thickness and inner corner radius
Critical requirementsRim flatness, wall thickness tolerance and internal surface finish
ApplicationVacuum furnace or other specified controlled-atmosphere process
Quantity & documentsRequired quantity, material certificate and dimensional report
FAQ
Frequently Asked Questions
What is the maximum operating temperature of a molybdenum crucible?
There is no single temperature that applies to every crucible. The limit depends on atmosphere, load, contained material, geometry, thermal cycle and contamination requirements. Provide the full service conditions for review.
Can a molybdenum crucible be used in air?
Molybdenum is generally selected for vacuum or protective-atmosphere high-temperature service. Prolonged use at elevated temperature in an oxidizing atmosphere is not recommended without application-specific evaluation.
Can you manufacture one prototype?
A one-piece prototype or small batch can be evaluated. The quotation reflects raw-material availability, machining setup, inspection and documentation requirements.
Can you provide 99.95% pure molybdenum?
A typical 99.95% minimum purity requirement can be reviewed. The final grade, test method and certificate must be defined in the purchase specification.
Which drawing files should we send?
Send a dimensioned PDF drawing together with a STEP or STP model whenever available. Mark critical tolerances, datums, surface requirements and inspection points.
How should chemical compatibility be confirmed?
The customer or equipment designer should confirm compatibility between the crucible and the process material under the actual temperature, atmosphere and cycle. We can then evaluate manufacturing feasibility.
RFQ
Need a Molybdenum Crucible Made to Your Drawing?
Send the drawing, material requirement, quantity and service conditions. We will review the manufacturing route and technical requirements before quotation.
Company name and contact detailsMaterial grade, purity and applicable standardOD, ID, height, wall and bottom thicknessCorner radii, chamfers, flange or rim detailsCritical tolerances, datums and inspection methodSurface finish, polishing and cleaning requirementsProcess material, atmosphere, temperature and thermal cycleQuantity, certificates and requested delivery date
