High-Quality Thermal Insulation Refractory Aggregate Rnd Round Neck Down Sleeves

• Customization: Available
• Certification: ISO
• Application: Refractory, Chemical, Metallurgy, Casting, Large Casting
• Model NO.: RND round neck down sleeves
• Application2: Steel Casting
• Effect: Feeding
• Modulus: 1.8-8.3cm
• Materilas: Slurry
• Compressive Strength: >2.0
• Air Permeability: >30
• Generating Capacity of Heat: >3.5
• Thermal Peak: >1250
• Moisture: <1.0
• Material: Cenosphere
• Transport Package: Pallet
• Specification: 60mm-500mm
• Trademark: TdwMex
• Origin: China
• HS Code: 68069000
• Production Capacity: 3000000PCS/Year

Product Description

Product Description

RND neck down riser sleeves are made of high-quality thermal

insulation refractory aggregate and appropriate amount of exothermic

compound, which can meet the feeding needs of most steel castings

and large castings.

Z cylindrical open feeder sleeves are made of high-quality thermal insulation refractory aggregates and appropriate amount of exothermic compound, which can meet the feeding needs of most steel castings and large castings.

Quick custom delivery available

Thanks to the negative pressure suction filtration process used in the manufacturing process, the

appearance dimensions can be changed at any time according to customers' requirements and put

into mass production quickly. The cycle from sample preparation and mold opening to mass production can be shortened to less than 48 hours to quickly respond to the sample delivery needs.

 

Flexible formulations and processes:

1. Small size BRND exothermic riser sleeves with more precise dimensions are available;

2. Large-sized (φ>200mm or more) CRND exothermic and insulation riser sleeves are available; 3. WRND thermal insulation riser sleeves are available with various sizes and wall thicknesses.

spare parts:

With or without P sand breaker core;

With or without G cover,flexible change of open or blind sleeves;

 

 

Packaging, transportation and storage:

Keep the package intact, store in a cool and dry place, prevent moisture absorption, and keep away from open flames;

Prohibit the use of  water for fire fighting; 

Model number	Modulus	Height: mm (excluding the easily detachable blade)	Diameter mm (max)
B/C-Z150x150	3.80	150	195
B/C-Z180x180	4.50	180	230
B/C-Z200x200	5.00	200	250
B/C-Z225x225	5.50	225	275
B/C-Z250x250	6.30	250	305
B/C-Z275x275	6.65	275	330
B/C-Z300x300	7.25	300	360
B/C-Z350x175	6. 13	175	415
B/C-Z400x200	7.00	200	465
B/C-Z400x400	9.33	400	465
B/C-Z450x150	6.21	150	515
B/C-Z500x500	11.17	500	565
*This table only lists the standard models of the series of risers; as the number of molds increases, new models will be added at any time. *The Z series nozzles can all be quickly cut short or bonded to be lengthened.

Main Product

Company Profile

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Shandong CQ New Materials Inc. is a professional manufacturer with rich industry experience, delivering high-quality solutions for cast iron and steel production . Our core offerings include exothermic & insulation sleeves (feeder risers) and slag coagulant—engineered for continuous casting processes across industries like iron and steel, automotive, construction machinery, and rail transit. These products also support critical feeding systems in cast iron/steel manufacturing, with full customization available to match specific production parameters such as casting size, material type, and process requirements.Backed by strong R&D capabilities and patented technologies, we continuously optimize product performance to adapt to evolving industry needs. With a stable supply chain and advanced production lines, we ensure large-scale supply capacity while maintaining flexibility. Our dedicated technical team provides prompt after-sales support, from pre-sales consultation to on-site guidance.Recognized and trusted by numerous clients both domestically and internationally, we hold three management system certifications, ensuring consistent product quality, reliable lead times, and compliance with stringent industry and environmental standards. We specialize in custom solutions to align with your unique production demands. Seeking exothermic sleeves, insulation sleeves, feeder risers, or slag coagulant? Choose CQ New Materials for trusted performance, technical expertise, and comprehensive support.

Company Advantage

Our Certificate

Our Service

Cooperative Brand

FAQ

Q: Are you a manufacturer?

A: Yes, we are a professional manufacturer with 15+ years of experience in producing exothermic-insulating risers, slag removers, and covering agents. We own a 35,000Square meter factory and export to 30+ countries.

Q: What information do I need to provide for a precise quotation?

A: Please specify:

•Product type 

•Application (e.g., gray iron casting, steel casting)

•Required performance indicators

•Order quantity, packaging requirements

•Desired trade terms (FOB, CIF, etc.)

Q: How do you ensure product quality? 

A: We implement strict quality control throughout production:

•Raw material inspection with certificates from SGS

•Real-time monitoring of the production process

•Post-production testing of physical properties

•Certification by ISO9001:2015 

Q: What's your lead time for mass production?

A: - Standard products: 3-7 days after PO confirmation

•Customized products: 7-15 days (depending on complexity)

•Rush orders: Available with 24-hour production upon request

Q: Do you provide free samples?

A: Yes, 1-2 standard samples are free (excluding freight). Custom samples are charged based on specifications, with the fee refundable upon bulk order. Samples are shipped within 3 working days via DHL/FedEx.

Q: What are the payment terms for export orders?

A: We accept T/T, L/C, Western Union, etc. 

Q: Can you assist with logistics and customs clearance?

A: Yes, we cooperate with professional freight forwarders to provide: •Door-to-door delivery (DDP) •Fumigation certificates, commercial invoices, packing lists, and CO (Certificate of Origin) •Compliance with import regulations of target countries (e.g., FDA for US, RoHS for EU)

Q: Do you offer technical support after sales?

A: Absolutely. Our technical team provides: •Usage guidelines •24-hour response to quality-related inquiries

Q: What is your MOQ (Minimum Order Quantity)?

A: 1 pallet or 1000 kgs;

•Trial orders: Acceptable with a slight premium 

Q: Do you have R&D capabilities for new formulas?

A: Yes, our R&D team can develop tailored products based on your casting process.

Q: Is factory visit available?

A: Welcome! We can arrange pick-up from nearby airports and provide detailed production line tours. Advance notice of 3 working days is appreciated.