High Temperature Alumina Ceramic Crucible for Gold Melting

• Customization: Available
• Shape: Custom Shape, Cylindrical
• Application: Melting
• Model NO.: Standard
• Material: Alumina
• Color: Creamy
• Product Name: High Temperature Alumina Ceramic Crucible
• Grade of Material: 99%, 99.5% Alumina
• Density: Over 3.65g/cm3
• Secondary Process: Fine Grinding, CNC Machining
• MOQ: 10PCS
• Features: High Precision, High Insulation
• Certificate: RoHS, Reach, ISO9001
• Usage: High-Temperature Ceramic Crucible
• Sample: Available
• Payment: Negotiation
• OEM: Acceptable
• Shipping: Express/Air/Sea
• Hardness: Customize
• Advantage: High Efficiency Low Cost
• Feature: Durable
• Certification: ISO
• Refractoriness: 1580< Refractoriness< 1770
• Type: Ceramic Crucible
• Transport Package: Individual Packaging
• Specification: Max. OD to be 300mm
• Trademark: JingHui
• Origin: China
• HS Code: 8547100000
• Production Capacity: 500000/Month

Product Description

High Temperature Alumina Ceramic Crucible for Gold Melting

The checklist of standard ceramic crucibles in stock

Type 1: Cylindrical ceramic crucibles

Model#	Outer diameter(mm)	Height(mm)	Wall thickness(mm)	Volume(ml)
JT2030	20	30	1.5	10
JT3030	30	30	1.8	15
JT3060	30	60	1.8	30
JT3645	36	45	2.5	30
JT4032	40	32	1.6	30
JT4050	40	50	2.5	45
JT4342	43	42	1.8	50
JT6060	60	60	2.5	130
JT5590	59	90	2.5	200
JT10040	100	40	5.5	200
JT8080	80	80	3.3	350
JT100100	100	100	4.0	550
JT135160	135	160	6.0	2000

 Type 2: Cone-shape crucibles

Model#	Upper OD(mm	Bottom OD (mm)	Height(mm)	Wall thickness (mm)	Volume (ml)
JT2020-14	25	14	20	1.5	5
JT3030-18	30	18	30	1.7	10
JT3438-20	34	20	38	1.9	20
JT4640-25	46	25	40	2	30
JT5645-30	56	30	45	2.9	50
JT5553-48	55	48	53	2.5	90
JT5768-37	47	37	68	3.5	100
JT5572-48	55	48	72	2.6	140
JT-7085-44	70	44	85	2.9	200
JT7590-50	75	50	90	2.9	300
JT80110-65	80	65	110	3.3	400
JT 100120-70	100	70	120	3.5	600
JT105150-70	105	70	150	4.5	800
JT113160-75	113	75	160	3.5	1200
JT125155-80	125	80	155	3.5	1200

Type 3: Other shapes

Model#	Shape	Length(mm)	Width(mm)	Height(mm)	Wall thickness(mm)	Volume(ml)
JT272310	Rectangular	27	23	10	2	5
JT971712	Rectangular	97	17	12	2	7
JT603015	Rectangular	60	30	15	2	20
JT1002020	Rectangular	100	20	20	2	25
JT757540	Square	75	75	40	2.5	130
JT858540	Square	85	85	40	3	200
JT15512055	Rectangular	155	120	55	5.5	550
JT10010040	Square	100	100	40	4	550
JT16016078	Square	160	160	78	6 .5	1400

 

The description and main features of ceramic crucibles
1. Material: 99% alumina, corundum-mullite ceramic, zirconium oxide ceramics, boron nitride optional
2. Shape: we supply various shapes, including cylinder, rectangular, square, boat, and so on. 
3. Features: all-ceramic crucibles are with excellent chemical resistance, thermal - shock performance. 
4. Working temperature: It can be work under max. 1650ºC long term in air, or higher temperature under inert gas
5. Application: They are commonly used in a variety of metal or non-metal melting material, or melting items analysis in the lab, also it's a regular application for smelting & sintering for phosphors, rare earth material, precious metals. 

The gallery of alumina ceramic crucibles







Datasheet of technical ceramic materials

Property	Units	Materials
		99.5%Al2O3	99%Al2O3	95%Al2O3	ZrO2	Si3N4
Density	g/cm^3	≥3.85	≥3.80	≥3.60	≥6.0	≥3.2
Water absorption	%	0	0	0	0	0
Hardness	HV	1700	1700	1500	1300	1550
Flexural strength	Mpa	≥379	≥338	≥320	≥1200	≥600
Compressive strength	Mpa	≥2240	≥2240	≥2000	≥1990	≥2500
Fracture toughness	Mpa m^1/2	4-5	4-5	3-4	6.5-8	6
Max. service temperature (Non-loading)	ºC	1675	1600	1500	1000	1200
CTE (20-800ºC)	1×10 ^-6 /ºC	6.5~8.0	6.2~8.0	5.0~8.0	8.0~9.5	3.1
Thermal shock	T(ºC)	≥250	≥200	≥220	≥300	≤1000
Thermal conductivity(25ºC)	W/m.k	30	29	24	3	15~20
Volume resistivity (25ºC )	ohm.cm	>1 x 10^14	>1 x 10^14	>1 x 10^14	>1 x 10^11	>1 x 10 ^12
Insulation strength	KV/mm	19	18	18	17
Dielectric constant(1Mhz)	(E)	9.7	9.5	9.5	29

Why choose us?
1.10+ years of manufacturing experience in OEM, ODM, and professional management & production team       
2. Powerful R&D to support custom prototyping cases and projects, also large-scale mass production capability
3.  In-house complete manufacturing equipment, including forming, sintering, precision machining process.       
4. Rigorous quality control system and processes per ISO9001: 2008, including IQC, IPQC, QA, OQC
5. Surpassing pre-sales and after-sales service, everything we do just for the business growth of our customers. 

Main Manufacturing Equipment





Advanced Inspection Equipment



                             

FAQs (Frequently Asked Questions)
Q1. Are you a factory or trading company?
A: We are a manufacturer. You are welcome to visit our factory.

Q2: Do you send a sample to check?
A: Sure, the sample is free and freight collect.

Q3: When will you ship it?
A: If the products are in storage, we'll ship within 48 hours

Q4: When can I get the price?
A: We regularly quote within 24 hours after we get your inquiry. If you are in urgent need of getting the price.
Please call us or tell us in your email so that we will proceed with your inquiry as a priority.

Q5: Is it available to provide customized products?
A: We always support custom-made demand as per different materials, dimensions, and designs.

Q6: How to ensure quality?
A: The dimension out of any batch will be carried out sampling inspection per international AQL standard.
The 100% cosmetic inspection will be done.