Custom OEM Quartz Glass Disc Factories & Factory serving Sheffield

Every quartz disc is ultrasonically cleaned in a Class 1000 cleanroom, individually wrapped in antistatic dust-free film, cushioned within tailored high-density closed-cell EPE foam compartments, and sealed inside export-grade wooden cases or reinforced multi-wall cartons. For air shipments directly to Manchester Airport (MAN), Leeds Bradford (LBA), or East Midlands (EMA) via DHL/FedEx, our shock-mitigation packing maintains an unbroken transit safety rate above 99.8%. In the rare event of transit damage, replacement parts are immediately re-manufactured and dispatched under our express warranty guarantee.

Yes. Our CNC machining department accepts all standard vector and 3D files (including STEP, IGES, DXF, DWG, and engineering PDFs). Beyond standard circular discs, we produce stepped-diameter windows, center-perforated discs, internal O-ring grooves, optical flats with locating notches, counter-bored mounting holes, and double-sided beveled edges. Typical CNC tolerances are held to ±0.05 mm, with precision optical grinding reaching ±0.02 mm.

JGS1 is synthetic fused silica with negligible bubble content and exceptional transmission across the deep-ultraviolet (UV) spectrum down to 185 nm; it is chosen for excimer lasers and lithography. JGS2 is standard optical clear fused quartz melted from high-grade natural crystals, offering optimal transmission from 220 nm through 2500 nm, making it the most cost-effective solution for sight glasses, vacuum viewing ports, and furnace windows in Sheffield foundries. JGS3 is an infrared-grade quartz with low hydroxyl (OH < 5 ppm) content that eliminates the strong water absorption dip around 2.73 μm, making it mandatory for infrared thermal imaging and laser applications operating up to 3500 nm.

Unlike large trading conglomerates that impose high minimum thresholds, our factory accommodates prototype and university laboratory testing batches starting at 1 to 10 pieces for custom-machined discs, and 50–100 pieces for standard precision optical wafers. Standard prototypes are fabricated and dimensionally inspected within 5 to 7 working days, followed by 3 to 5 days air express courier delivery to South Yorkshire addresses (postcodes S1 through S36).

Fused quartz features an extraordinarily low linear coefficient of thermal expansion (α ≈ 5.5 × 10⁻⁷ /°C), which is nearly one-sixth that of borosilicate glass 3.3 (α ≈ 33 × 10⁻⁷ /°C). Consequently, a quartz disc can be heated up to 1100°C and plunged directly into cold water (20°C) without fracturing or structural micro-cracking. This makes fused quartz essential for Sheffield metallurgy, pyrometry ports, and thermal induction coils where borosilicate sight glasses would shatter immediately.

We provide full documentation for smooth UK customs clearance under HMRC regulations. Shipments include commercial invoices detailing correct HS codes (typically 7002.31.00 for quartz tubing or 7006.00.00 / 7017.10.00 for worked quartz plates/discs), certificates of conformity (CoC), and packing declarations. Buyers with a valid UK EORI number can clear goods directly with standard courier processing or utilize their nominated freight forwarder.