PROCESS CAPABILITY
Process Capability Matrix
What we do, tolerance, MOQ — fewer invalid RFQs.
BLOW
Glass Blowing
Molten glass formed in mould or free-blown; hand-blowing for small-batch custom shapes, machine-blowing for batch consistency.
Typical tol · Wall ±0.3mmLAMP
Lampworking
Local flame melting, sealing, bending and custom welding of tubes/rods — the core process for non-standard parts.
Typical tol · Align ±0.5mmCALI
Scale Calibration
Graduations screen-printed or enamel-fired then cured; Class A (metrological) and Class B (general) available.
Typical tol · Class A ±0.2mL (100mL)ANNE
Annealing
Post-form slow-cool in annealing lehr per material curve to relieve thermal stress and prevent cracking.
Typical tol · Stress Class 1–2GROU
Ground Joint
Standard ground joints (14/23, 19/26, 24/29, 29/32…) at 1:10 taper — interoperable worldwide.
Typical tol · Taper 1:10 · 14/23–29/32FROS
Frosting & Printing
Frosted sealing surfaces for airtight fit; screen-print brand logo & custom scales for white-label supply.
Typical tol · Surface Ra≤3.2μm