Humidifier Housings_Injection Molding_Products_Shenzhen Xinbaoxin Hardware and Plastic Products C

Injection Molding

Humidifier Housings

We adopt premium ABS, PP and PC materials for humidifier housings. Precision mold machining handles complex curved surfaces, snap-fit structures and transparent water tank parts, achieving clean parting lines, tight assembly tolerance and reliable waterproof performance.

Strict control over injection pressure, temperature and cooling cycle to prevent shrinkage, warpage and surface defects. Special care for transparent part clarity and snap-fit dimensional stability. Batch sampling inspection is implemented before mass production.

In-house mold and injection workshops with experienced engineering & technical teams. One-stop solution covering mold development, injection molding and post-treatment. Support humidifier shell customization from prototype sample to mass production.

Product Parameters

Humidifier Plastic Mold — Material, Processing & Maintenance
Item	Details	Tip / Note
I. Mold Steel Selection
Mold steel	Common options: P20 / 718 / NAK80 / S136	P20 and 718 are great for mass production; S136 and NAK80 work best for glossy, corrosion-resistant surfaces.
Mold base	Standard mold bases (e.g. LKM, Futaba)	Easy to source, shorter lead time, very stable structure.
Hardness	Heat-treated to about HRC 45–52 depending on the steel	Keeps the mold tough and long-lasting for repeated runs.
How we pick	We choose the steel by output volume, surface finish, and whether the shell uses transparent or flame-retardant material	Transparent parts need polished steel to keep clarity; fiberglass-filled resin needs extra wear-resistant steel.
II. Mold Processing
Process flow	Design → stock prep → CNC roughing → heat treatment → CNC finishing → EDM → wire cutting → polishing → assembly → trial molding	Everything in-house, so we control quality at every step.
Equipment	CNC machining center, EDM, wire cutting, grinder, milling machine	In-house equipment gives better precision and stability.
Key structures	Parting line accuracy, snap-fits, sliders / lifters / core-pulls, cooling channels, polished cavity for transparent parts	These decide molding quality, assembly fit and surface finish.
III. Mold Maintenance
Daily care	Clean, rust-proof, and lubricate guide pins/bushings after each run	Prevents corrosion and keeps parts moving smoothly.
Regular upkeep	Check parting line wear, polish the cavity, replace wear parts (ejector pins, springs, inserts)	Keeps the mold precise and the shells consistent, especially transparent ones.
Storage	Rust-prevent oil, moisture-proof, labeled storage	Helps the mold last much longer.
Modification	We adjust based on trial/production issues and support re-modification	More flexible for you, better end result.

Humidifier Plastic Housing — Material & Processing
Item	Details	Tip / Note
I. Housing Material
ABS	Good impact resistance, easy to mold, lower cost	A solid general choice for the main body.
PP	Lightweight, good chemical resistance	Often used for the water tank or inner parts.
PC	High strength and heat resistance, transparent option available	Good for transparent tanks or parts that need extra toughness.
PETG	Clear, tough, food-contact safe	Nice option for clear water tanks.
Flame retardant	UL94 V-0 / V-2 ratings available	We recommend V-0 for the electrical parts to stay safe and compliant.
II. Processing
Injection molding	Housing body formed in one injection molding process	Fast, precise, and perfect for volume orders.
CNC post-processing	Drilling, slotting, port cut-outs, tapping	Handles all your assembly and interface needs.
Surface treatment	Texture / grain, painting, silk-screen, laser marking	Better feel, nicer finish, and clean branding.
Processing challenges	Uniform wall thickness, anti-shrinkage, transparent part clarity, snap-fit fit tolerance, sealing for water parts	We focus on avoiding shrinkage, warpage and leakage for a clean, reliable result.