Certified fused silica components and high-efficiency short/medium wave thermal emitters manufactured to OEM drawings, serving heavy processing, flotation facilities, and analytical laboratories.
Erdenet, located in the northern heartland of Mongolia, anchors one of the largest copper-molybdenum open-pit and enrichment complexes in Central Eurasia. Operating industrial hardware at an altitude exceeding 1,300 meters presents severe operational friction: ambient winter temperatures dropping past -40°C combined with high particulate slurries and corrosive flotation reagents. Standard borosilicate and sodalime viewing plates fracture under the steep thermal gradients between heated autoclave chambers and freezing plant corridors. Kavri Quartz engineers clear and ground fused silica sheets with near-zero thermal expansion coefficient (5.5 × 10-7/K), ensuring thermal shock immunity during severe cyclic temperature spikes.
| Material Property / Parameter | Kavri Fused Quartz Plate | Standard Borosilicate 3.3 | Application Impact in Erdenet |
|---|---|---|---|
| Maximum Working Temp (Continuous) | 1,100 °C to 1,200 °C | 450 °C to 500 °C | Zero warping in high-temp calcination ovens & smelting furnaces |
| Coefficient of Thermal Expansion (CTE) | 5.5 × 10-7 / K | 33 × 10-7 / K | Survives immediate transitions from -40°C ambient to molten slurries |
| Spectral Transmission (UV → Near IR) | > 92% (190 nm – 3,500 nm) | < 85% (Cutoff < 310 nm) | Accurate photometric analysis in copper-molybdenum assay labs |
| Chemical Acid Resistance | Grade 1 (Immune except HF/H3PO4) | Moderate (Degrades in alkalis/acids) | Unaffected by sulfuric leaching mists and metallurgical off-gases |
1. Pressure Leaching & Roaster Sight Ports: In hydrometallurgical recovery, sight glasses must withstand aggressive sulfuric acid, molybdenum trioxide vapors, and localized radiant surges. Kavri's CNC-machined, flame-polished quartz plates eliminate micro-fractures, offering optical clarity for radiometric sensors and high-pressure inspection hatches.
2. Heavy Equipment De-Icing & Paint Curing Bays: Massive haul trucks and flotation gear require swift pre-heating and rapid curing in low-temperature workshops. Kavri short-wave twin-tube halogen and gold-coated emitters direct 95% of thermal output straight onto target substrates within 1 second, overcoming ambient Arctic convective losses.
3. Analytical Assaying & Spectrophotometry: Mineral processing quality control in Erdenet relies on high-precision optical flow cells, quartz cuvettes, and tubular reaction vessels. Having an iron content below 0.0005% ensures zero optical baseline deviation during trace metal identification.
How modernization of the Erdenet Mining Corporation (EMC) and regional copper processing plants is restructuring supply chain expectations.
Transitioning from antiquated steam or coal-based duct warming to precision short-wave infrared heat lamps significantly curtails energy losses during plant winterization, delivering thermal energy directly to critical slurry pipes and pump valves.
Procurement teams in Orkhon Province are circumventing intermediary markups by partnering directly with verified Lianyungang manufacturers. Factory-direct drawings guarantee micron-level dimensional conformance for legacy Soviet and modern Western equipment.
Next-generation copper cathode and wire-rod facilities integrate automated pyrometric feedback loops. Fused quartz observation windows require pristine surface parallelism and minimal bubble inclusion to prevent optical refraction errors.
Direct from Lianyungang (Donghai Quartz Belt) to Erdenet: Vertically integrated fabrication, strict QC, and multi-modal logistics.
Located in Lianyungang, Kavri draws upon premier natural silica deposits, offering JGS1, JGS2, and JGS3 synthetic and fused quartz at factory-direct pricing with total raw material traceability.
Every quartz sheet undergoes optical spectrophotometer testing, polariscope stress tests, laser micrometer verification (±0.05 mm), and clean flame-edge deburring to eliminate micro-crack propagation under vibration.
Shipping glass over 2,000 kilometers via Erenhot/Zamiin-Uud requires specialized crate design. We employ multi-layer shock-absorbent vacuum packs and reinforced plywood crating with 0% historical transit rupture rates.
Practical answers covering specifications, minimums, cross-border shipping, and engineering drawings.
Goods typically ship via bonded road freight or China-Europe railway container links through the Erenhot (Inner Mongolia) – Zamiin-Uud border port into Ulaanbaatar, proceeding straight to Erdenet by dedicated flatbed truck or rail. Door-to-door transit generally takes 10 to 18 days depending on customs clearance mode (DDP, DAP, or CIF).
Yes. We regularly fabricate according to legacy blueprints, imperial dimensions, or reverse-engineer from sent physical samples. Whether you need specific step-profile discs, ground bevels, high-pressure borings, or non-standard metric thicknesses (2mm to 30mm+), our CNC cutting centers reproduce identical dimensional envelopes.
Fused quartz possesses a negligible thermal expansion coefficient (~5.5 × 10-7/K). It can undergo an instantaneous thermal shock from freezing -40°C temperatures up to 1,000°C without structural fatigue, making it far superior to borosilicate or tempered soda-lime glass which often shatters under steep winter gradients.
Standard items and prototype testing orders start from as low as 8 to 10 pieces. For large-scale maintenance shutdowns or plant-wide replacements, we scale production runs to thousands of units with tiered bulk pricing and dedicated warehouse inventory reservations.