Key specification for this external rotor motors: material Alumina Ceramic, type Ceramic Parts. Everything below is reproduced from the factory data sheet. Made by Jiangsu Province Ceramics Research Institute Co., Ltd. (22 years on the platform, factory-assessed). Send your target quantity and destination for a firm quotation with current lead times.
Key Features of These External Rotor Motors
- Model Number: Ceramic Roller
- Material: Alumina Ceramic
- Raw Material: 99% Alumina Ceramic
- Place Of Origin: Jiangsu, China
- Application: Industrial Ceramic
- Type: Ceramic Parts
Technical Specifications
| Material | Alumina Ceramic |
|---|---|
| Application | Industrial Ceramic |
| Type | Ceramic Parts |
| Processing Service | Cutting, Punching, Moulding |
| Place Of Origin | Jiangsu, China |
| Brand Name | — |
| Model Number | Ceramic Roller |
| Product Name | 99 Alumina Ceramic Roller Ceramic Rotor Engine Part |
| Shape | Rotor |
| Certificate | ISO9001:2001 |
| Advantage | 58 Years Structural Ceramics Experience |
| Raw Material | 99% Alumina Ceramic |
| Density | 3.85g/m3 |
| Compress Strength | 2800MPa |
| Working Temperature | 1700 Degree |
| Thermal Conductivity | 25W/MK(20℃) |
| Size | Dia222*90mm |
| Selling Units | Single item |
| Single Package Size | 60X60X60 cm |
| Single Gross Weight | 50.0 kg |
Product Details






shaft, screw, washer, sleeve, hunger, spacer, holder, carrier, insulator, fixture, clamp, chuck, nozzle, guide, frame, lining, and
grinding media, milling ball or beads besides good performance own research electrodialysis membrane stack.
These precision toleranced ceramic components or assemblies are used in a wide range of semiconductor, electronic,
electrical,mechanical, chemical, automotive, textile and the other industrial engineering applications, due to their extreme
hardness, more resistances to wear, heat,corrosion, high electric insulation, and low thermal expansion.
From life-extending elements to next-generation, renewable energy products, Jiangsu Province Ceramics Research Institute Co., Ltd genuinely helps make the world measurably better. We work with engineers and designers like you to develop tomorrow’s technology and art for just what you search for in the global economy.
Using our core strengths of custom-engineering & designing, material expertise, operational excellence and rapid execution. We help our customers develop amazing solutions about tableware & fine ceramics.
Our experienced designing, engineering, manufacturing, exporting experts are ready to help with your next project.
Item | 99 alumina | 95 alumina | 92 alumina | Steatite | Unit symbol |
Bulk Density | 3.85 | 3.65 | 3.6 | 2.6 | g/cm3≥ |
Flexural Strength | 350 | 300 | 280 | 120 | Mpa≥ |
Max Use Temperature | 1700 | 1500 | 1400 | 1000 | ℃≥ |
Volume Resistivity | 1015 | 1014 | 1014 | 1012 | Ω·cm 20℃ |












As for shipment, different ways have their own advantage and disadvantage:
By Ship: the cheapest, suitable for large amounts take more time
By Air: faster, more convenient a little bit expensive
By Express: more flexiable, door to door much more expensive


order to make perfert general ceramic for you.
2. Industrial ceramics: Iso-static pressing equipment, Auto-pressing machines in PTC production, Continuous kiln,
CNC(Computer numerical control machining centre). Every step is sesured to make sure quality of every 99 Alumina ceramic roller ceramic rotor engine part.
3. Test equipments: Composition analyzer, Strength Tester, Light microscope, Thermal expansion coefficient tester.
You can send your drawing with technology requirements and mark your purchase quantity of 99 Alumina ceramic roller ceramic rotor engine part. It is much better if you could offer the usage information about products.
We will confirm the most suitable material and quote our best price to you in 24 hours.
2. Can you accept OEM & ODM?
Yes, we can produce the products according to your demand and drawing.
3. Can you provide free samples?
Yes, we can provide the sample for free, but the freight and mold fee are on your side.
4. What’s the lead-time for samples?
Within 3-7 days for bulk order, 15-45 days for OEM designs and shapes.
5. What’s your production Lead-time for bulk order?
Generally it takes 30-45 days and 45-60 days in peak season.
6. What are your payment terms?
In generally, we quote FOB Shanghai price, payment 30% deposit by T/T in advance, 70% balance paid before shipment
or within 7 days against shipping documents.
It balances against Weston Union, L/C or Paypal etc. (Payment about 99 Alumina ceramic roller ceramic rotor engine part can be negotiated, kindly to contact with us)
Ordering and Pricing
- Minimum order quantity: 10 piece
- Volume pricing:
- 10+ piece: US $250 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this external rotor motors?
The standard minimum order quantity is 10 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
Which certifications does this external rotor motors carry?
It is supplied with ISO9001:2001 documentation, which covers the requirements of most import markets. Additional test reports can be issued on request.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Jiangsu Province Ceramics Research Institute Co., Ltd., based in China. The company 22 years as a verified Alibaba.com supplier, operates its own manufacturing, passed third-party supplier assessment. Browse the full Jiangsu Province Ceramics Research Institute Co., Ltd. range on HVACR Nexus.
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