Double Bore / 2-Hole Alumina Ceramic Tube for High-Temperature Applications

2-Hole Alumina Tube Applications

• Alumina Ceramic 2-Hole Tube in the Laboratory
  
  

  ✅ Key Advantages

  1. Dual-channel design enables simultaneous gas input and sampling
  Allows parallel gas flow and probe insertion, improving experimental throughput by up to 35%.

  2. Structural stability maintained at 1600°C under dual-flow conditions
  No deformation or leakage observed after 100+ hours of continuous high-temp operation.

  3. Chemical inertness ensures <0.5% contamination in reactive gas systems
  Validated in H₂/NH₃ atmospheres during catalyst screening experiments.

  ✅ Problem Solved

  A laboratory equipment manufacturer in the U.S. integrated ADCERAX 2-hole alumina tubes into their modular gas-phase reaction systems. Compared to single-hole tubes, the dual-channel design reduced experiment cycle time by 28% and eliminated cross-contamination between gas input and sampling lines. After 120 hours at 1600°C, no structural degradation or seal failure was reported, improving system reliability and reducing maintenance frequency.

• 2-Hole Alumina Tube in Industrial Furnace
   

  ✅ Key Advantages

  1. Dual-channel design enables redundant thermocouple placement
  Allows real-time temperature cross-checking, reducing calibration drift by 22% over 3 months.

  2. Maintains dielectric strength >10⁶ Ω·cm at 1600°C
  Prevents signal interference in multi-zone furnace control systems.

  3.Withstands 50+ thermal cycles from 25°C to 1500°C without cracking
  Validated in rapid-heating industrial sintering lines with <2% failure rate.

  ✅ Problem Solved

  An industrial furnace manufacturer in Germany adopted ADCERAX 2-hole alumina tubes for dual-thermocouple protection in their high-precision sintering chambers. The dual-channel setup enabled continuous temperature verification, reducing sensor drift-related errors by 19%. After 50+ thermal cycles between ambient and 1500°C, the tubes showed no cracking or dielectric breakdown, cutting thermocouple replacement frequency by 35% and improving furnace uptime.

• Double Bore Alumina Tube in Thermal Processing Line 

  ✅ Key Advantages

  1. Independent dual channels isolate heating and sensor wires
  Prevents thermal interference, improving temperature control accuracy by 17% in multi-zone sintering.

  2. Stable under 100+ thermal cycles in corrosive atmospheres
  Tested in H₂/N₂ environments with <1.5% structural degradation after 120 hours.

  3. Dual-bore alignment reduces installation time by 23%
  Simplifies routing of parallel elements in compact furnace assemblies.

  ✅ Problem Solved

  A thermal processing equipment supplier in Italy integrated ADCERAX 2-hole alumina tubes into their continuous sintering lines to separate heating wires from thermocouple leads. This dual-channel configuration enhanced thermal isolation and reduced signal noise, resulting in a 21% improvement in temperature uniformity. After undergoing over 100 thermal cycles in a corrosive H₂/N₂ atmosphere, the tubes maintained their full structural integrity, resulting in a 30% reduction in unplanned maintenance events.

Alumina Ceramic 2-Hole Tube Usage Instructions

• Handling and Storage

  1. Store in a clean, dry environment with humidity below 60% to prevent surface contamination.
  2. Avoid contact with metals or abrasive objects to prevent scratches or micro-cracks.
  3. Handle with gloves to reduce the risk of contamination and protect the surface finish.

• Installation Guidelines

  1. Ensure dimensional compatibility with equipment; tolerance within ±0.1 mm is recommended.
  2. Insert wires, thermocouples, or optical fibres into each channel with care to avoid internal stress.
  3. When sealing, use high-temperature gaskets suitable for alumina ceramic interfaces.

• Operational Conditions

  1. Continuous operating temperature: up to 1650°C; short-term exposure: up to 1750°C.
  2. Heating and cooling rates should not exceed 5°C per minute to minimize thermal shock risk.
  3. Maintain the inner channels free of debris to ensure reliable insulation and performance.

• Cleaning and Maintenance

  1. Clean using ethanol or deionized water; avoid corrosive cleaning agents such as HF or strong alkalis.
  2. Dry thoroughly at 100–120°C before reuse to ensure electrical insulation properties.
  3. Inspect channels regularly for blockages or cracks exceeding 0.2 mm and replace if necessary.

FAQ About 2-Hole Alumina Tube

1. Q: What is the difference between a 2-hole alumina tube and a double bore ceramic tube?
   A: Both terms refer to the same type of product — a ceramic tube with two parallel bores. “2-hole alumina tube” is commonly used in industrial procurement, while “double bore ceramic tube” is often used in technical documentation. These tubes are ideal for thermocouple protection and gas flow separation in high-temperature environments.
2. Q: What industries typically purchase alumina ceramic 2-hole tubes?
   A: These tubes are widely used in laboratory equipment, industrial furnaces, thermocouple assemblies, and gas analysis systems. We supply to manufacturers, OEMs, and wholesalers across the US, Germany, Korea, and more.
3. Q: How can I request accurate alumina ceramic 2-hole tube quotes for my project?
   A: To receive precise alumina ceramic 2-hole tube quotes, please provide key specifications such as outer and inner diameters, length, bore spacing, quantity, and any customization requirements (e.g., closed ends or polished surfaces). Our engineering team will review your request and respond with a detailed quotation within 24 hours. For standard sizes, we also offer quick pricing based on current stock availability.
4. Q: What is the typical price range for a high-quality 2-hole alumina tube?
   A: The price depends on size, purity, and customization. Standard high-quality 2-hole alumina tubes range from $5 to $50 per piece. For bulk orders or OEM projects, we offer reasonable pricing and volume discounts.
5. Q: Do you supply 2-hole alumina tubes from China with international shipping?
   A: Yes. We are a China-based manufacturer of alumina ceramic 2-hole tubes and ship globally. Our factory supports both standard and customized production, with fast lead times and export-ready packaging.
6. Q: Can I get a customized 2-hole alumina tube with specific dimensions and end shapes?
   A: Yes. We offer fully customized alumina ceramic 2-hole tubes. You can specify outer and inner diameters, bore spacing, length (up to 3000mm), and end configurations such as open, closed. We support small batch orders with no MOQ.
7. Q: What is the lead time for custom orders?
   A: Standard sizes ship within 24h–5 days. Typically 3-5 weeks for samples, 4-6weeks for bulk production. (Detailed lead time depends on the complexity and specifications of the product)

What Our Clients Say: Alumina Ceramic 2-Hole Tubes

• ⭐️⭐️⭐️⭐️⭐️
  “We’ve been purchasing alumina ceramic 2-hole tubes from ADCERAX for over a year. The dimensional accuracy and material purity are consistent, which is critical for our thermocouple assemblies.”
  -- Michael R., Senior Engineer, ThermoTech Instruments, USA
• ⭐️⭐️⭐️⭐️⭐️
  “The customized alumina ceramic 2-hole tubes we ordered fit perfectly into our gas flow systems. The team helped us adjust the bore spacing and end finish to match our design.”
  -- Dr. Hanna L., R&D Director, LabHeat GmbH, Germany
• ⭐️⭐️⭐️⭐️⭐️
  “We needed a reliable supplier for high-quality 2-hole alumina tubes with fast delivery. ADCERAX delivered on time and provided full technical support during the design phase.”
  -- Kenji T., Procurement Manager, Nippon Furnace Co., Japan
• ⭐️⭐️⭐️⭐️⭐️
  “As a wholesaler, we appreciate the flexibility in MOQ and the consistent quality of the alumina ceramic 2-hole tubes. Our clients in Europe are satisfied with the performance.”
  -- Laura M., Purchasing Lead, EuroCeramics Supply, Italy