Customer Success Story: High Temperature Resistant Quartz Furnace Tube for Lab Sintering Furnace-Eva
Được xuất bản vào ngày: July 10, 2026
Customer Success Story: High Temperature Resistant Quartz Furnace Tube for Lab Sintering Furnace
1. Customer Background & Initial Inquiry
Our client is a materials research laboratory based in Germany, engaged in ceramic powder sintering experiments. They sent an inquiry through our independent website, stating their core pain point:
Their original borosilicate furnace tubes deformed and cracked frequently under long-term 900–1150°C working temperature, leading to frequent equipment shutdowns, damaged test samples and extra maintenance costs. They needed high-temperature resistant quartz tubes that could withstand continuous high-temperature cycling without breakage.
Their original borosilicate furnace tubes deformed and cracked frequently under long-term 900–1150°C working temperature, leading to frequent equipment shutdowns, damaged test samples and extra maintenance costs. They needed high-temperature resistant quartz tubes that could withstand continuous high-temperature cycling without breakage.
The client shared detailed equipment parameters: inner diameter 60mm, outer diameter 70mm, total length 1200mm, working temperature up to 1200°C, with strict requirements on tube roundness and wall thickness uniformity.
2. In-depth Technical Communication & Solution Matching
Our sales and technical team held a video meeting with the client’s process engineer within 24 hours after receiving the inquiry.
- We analyzed the material difference: Borosilicate glass fails above 450°C long-term use, while our high-purity fused quartz tube stably works at 1100–1200°C, with ultra-low thermal expansion coefficient to resist rapid cold & hot shock.
- We recommended Grade 1 transparent fused quartz tube (SiO₂ purity ≥99.99%) with uniform wall thickness, full annealing treatment to eliminate internal stress and avoid cracking under temperature cycles.
- We sent product test reports, high-temperature resistance test videos and factory production workshop footage to prove our processing capacity.
- The client worried about dimensional tolerance and delivery cycle; we promised tolerance ±0.2mm and 7-day sample production lead time.
3. Sample Testing & Client Verification
We produced custom quartz tubes according to their drawing and shipped samples to Germany within one week. The client installed the tube into their sintering furnace for continuous 72-hour high-temperature cycle test (heating to 1180°C then natural cooling repeatedly).
Test feedback: No deformation, no cracks, no surface devitrification, fully meeting their lab experiment standards. The engineer praised our quartz tube’s stable thermal performance and high purity without impurity precipitation polluting samples.
Test feedback: No deformation, no cracks, no surface devitrification, fully meeting their lab experiment standards. The engineer praised our quartz tube’s stable thermal performance and high purity without impurity precipitation polluting samples.
4. Negotiation & Formal Order Confirmation
After sample passed verification, the client discussed bulk order price and shipping terms. We offered a favorable bulk price and safe wooden case packaging solution to prevent breakage during sea transportation.
Two weeks later, the client issued a formal PO for 20 pieces of high-temperature quartz furnace tubes, with T/T payment term. We arranged production immediately and finished all goods within 15 working days, with full inspection before shipment.
Two weeks later, the client issued a formal PO for 20 pieces of high-temperature quartz furnace tubes, with T/T payment term. We arranged production immediately and finished all goods within 15 working days, with full inspection before shipment.
5. After-sales Feedback & Long-term Cooperation
One month after delivery, the client sent positive feedback: The quartz tubes have been running continuously for over 300 hours without any abnormal conditions, greatly cutting their consumable replacement cost and improving experiment efficiency.
Six months later, the client placed a repeat order of 35 quartz tubes and added customized short quartz liners for their new small furnace equipment. We have established stable long-term supply cooperation till now.
Six months later, the client placed a repeat order of 35 quartz tubes and added customized short quartz liners for their new small furnace equipment. We have established stable long-term supply cooperation till now.
6. Core Advantages Our Quartz Furnace Tubes Bring to High-temperature Equipment Clients
- High temperature resistance: Long-term stable use at 1100–1200°C, instant heat resistance up to 1600°C
- Excellent thermal shock resistance: No cracking under rapid temperature rise & fall
- Ultra-high purity: No metal ion pollution, suitable for material sintering, lab testing, semiconductor furnace
- Customizable size: Support customized diameter, length, closed end, flanged interface
- Strict annealing process: Eliminate internal stress to extend service life
Conclusion
This case fully proves that high-purity fused quartz tube is irreplaceable for high-temperature furnace equipment. If you are troubled by short service life, deformation or cracking of your furnace tubes under high temperature, contact our team for professional customized quartz tube solutions.
