1. Standard Squeeze Tube Diameter, Fill Capacity & Unsealed Body Length Table
| Tube Diameter (mm) | Target Fill Volume (ml) | Unsealed Tube Body Length (mm) | Minimum Tail-Seal Crimp Allowance | Primary Applicator & Neck Options |
|---|---|---|---|---|
| Ø13 / Ø16 / Ø19 mm | 5 ml – 25 ml | 65 mm – 115 mm | 12–15 mm headspace | Slanted lip tip, ophthalmic needle nozzle, ceramic cooling tip, Zn-alloy roller |
| Ø22 / Ø25 / Ø30 mm | 20 ml – 60 ml | 85 mm – 135 mm | 15–18 mm headspace | M15 flip-top, airless pump head, octagon screw cap, sponge dabber |
| Ø35 / Ø40 mm | 50 ml – 120 ml | 105 mm – 160 mm | 18–20 mm headspace | Ø35/Ø40 flush flip-top cap, acrylic overcap + pump, twist-off nozzle |
| Ø45 / Ø50 / Ø60 mm | 100 ml – 250 ml | 130 mm – 195 mm | 20–24 mm headspace | Wide-stance flip-top cap (with tamper-evident shrink band or orifice foil) |
2. Hot-Air / Ultrasonic Tail-Sealing & Burst Pressure Standards
- Hot-Air Tail Sealing (5-Layer EVOH / PE): Nozzle air temperature 380–420°C, cooling jaw water
10–14°C, clamp pressure4.0–5.0 barfor0.8–1.2 s. Keep inner tube wall 100% free of oil/silicone splash in the top 15 mm sealing zone. - Ultrasonic / High-Frequency Sealing (ABL / PBL): Frequency
20 kHz, weld time0.35–0.55 s; mandatory tail-seal internal burst pressure ≥ 0.40 MPa (4.0 bar) held for 30 seconds without weeping.
Request Physical Bottling & Pump Compatibility Sample Kit + 24h Tiered FOB Quote (48h DHL Dispatch)
Managed directly by Alex Gao (Managing Director, Vella · Guangzhou Yanchuang Packaging Co., Ltd. · USCC 91440111MA59DBE04B · [email protected] · WhatsApp +86 139 2512 2895). Low trial MOQs (~500–1,000 pcs stock, ~2,000–3,000 pcs custom Pantone with cross-component ΔE <= 1.5), -0.08 MPa vacuum leak testing, and 30/40/30 100% client mould ownership.