Servo Hydraulic Injection Machine
Cosmetic Cap & Pump Injection Molding Machine
Special servo injection machine for cosmetic caps, flip tops, lotion pumps, spray pumps, and cosmetic closures. High precision, no flash, support multi-cavity molds, and stable mass production for beauty packaging factories.
Our cosmetic cap and pump dedicated injection molding machine is a high-precision servo equipment independently optimized for all plastic cosmetic closures and pump parts. Different from universal injection machines, its injection speed, pressure control, and clamping rigidity are adjusted specially for small thin-wall cosmetic plastic parts. This machine solves frequent defects of caps and pump components: flash, short shot, shrinkage mark, uneven wall thickness, warpage, and rough parting line. It is widely used to produce all supporting plastic accessories for beauty packaging, matched with PET and PP cosmetic bottles. We match machine tonnage according to your cap size, single weight, and daily output demand. 90T, 110T, 130T, and 160T are our mainstream stable models for cosmetic cap & pump mass production. Multi-cavity molds with high cavity numbers are fully supported to greatly increase hourly output. Our technical team customizes plasticizing capacity, clamping force, and mold stroke to perfectly fit your cap and pump molds.
Producible Cosmetic Cap & Pump Types
- Screw caps, flip top caps, butterfly caps, and press caps for skincare bottles
- Lotion pump heads, spray pump parts, mist pump plastic shells, and pump inner cores
- Cosmetic tube caps, cream jar lids, travel bottle small stoppers & sealing plugs
- All plastic cosmetic closures are made of PP, PE, and PET materials
Core Machine Advantages
1. Ultra-high precision molding, zero flash requirement
Cosmetic caps and pumps need clean parting lines without burrs for automatic assembly. Our high-response closed-loop servo control delivers stable micro injection pressure, eliminating flash and trimming work. Finished caps can directly enter automatic assembly lines.
2. Optimized plasticizing system for small thin-wall parts
The screw barrel is miniaturized and optimized for small PP/PE cap materials. Uniform plasticization avoids incomplete filling, material waste, and yellowing during long continuous production. Stable tiny shot volume ensures consistent weight of each cap and pump component.
3. Small tonnage flexible design & high-cavity mold support
Small lightweight caps fit 160 ton-250 ton machines; large cream jar lids and big pump housings adopt 250 ton - 300 ton models. We support high-cavity molds to maximize output and lower unit production cost. Our engineers calculate clamping force and plasticizing volume to offer safe, efficient cavity layout solutions.
4. 24-hour stable high-speed cycle
A full servo-hydraulic structure realizes fast mold opening/closing and short cycle time, much more energy-saving than traditional hydraulic machines. High-rigidity mold base prevents product warpage under thin-wall high-speed molding. All machines pass a full-load aging test before delivery.
5. Complete auxiliary matching solution
We supply matched auxiliary machines, including plastic dryers, mold temperature controllers, and granulators. Stable temperature control reduces warpage and shrinkage of thin-wall caps, improving finished product qualification rate.
Key Production Notes for Cosmetic Caps & Pumps
Cosmetic caps and pump parts are mostly small plastic pieces with strict assembly tolerance. Slightly unstable injection parameters will cause flash, warpage, or dimensional deviation, which leads to assembly failure. Do not blindly pursue excessive mold cavities. The cavity quantity must match the machine clamping force and plasticizing capacity. Overloaded molds will result in unstable product size and frequent machine faults. Our technical team provides professional mold evaluation before production.PP and PE raw materials have low melting points; precise temperature control of the barrel and mold is required to avoid deformation and size inconsistency of pump cores and lids.
Why Choose Us
- Dedicated machine specially developed for cosmetic caps and pump parts, not modified general machines
- Precision control eliminates flash, no secondary trimming needed, compatible with automatic assembly
- Support high-cavity multi-cavity molds to boost production and cut manufacturing costs
- Full customization of clamping force, plasticizing volume, and parameters for your exclusive cap molds
- Global complete after-sales service with 24/7 online technical support
- Free mold testing service arranged after formal order confirmation to check dimensional accuracy and cycle efficiency
FAQ
Q1: What cosmetic parts can this machine produce?
A: It manufactures all cosmetic plastic closures and pump accessories: flip caps, screw lids, lotion pumps, spray pump housings, inner pump cores, jar lids, small stoppers, and sealing plugs, applicable to PP, PE, and PET raw materials.
Q2: Which tonnage machine is suitable for caps and pumps?
A: Tiny sample bottle caps and mini pump parts choose 160T to 250 T; large cream jar lids and big spray pump shells select 250 T to 300TT. We provide one-on-one model selection based on your product size and weight.
Q3: Can I use high-cavity molds to raise daily output?
A: Yes, high-cavity mold design is fully supported. Our technical team calculates machine load capacity to guarantee stable production and consistent product dimensions.
Q4: Do I need to equip auxiliary machines?
A: Mold temperature controllers are strongly recommended to control the shrinkage and warpage of thin-wall caps. Dryers and granulators are optional based on your raw material conditions. We provide all supporting auxiliary equipment in one set.
Q5: Can you customize the machine for my cap & pump molds?
A: Yes, we adjust all core machine parameters according to your product drawings, single weight, and daily output targets. Free mold testing will be provided after you confirm the formal order.
Contact Us for a Custom Solution
Troubled by cap flash, pump part warpage, unstable dimensional tolerance, and low assembly yield? Send your cap and pump drawings together with your daily production demands. We design precise high-speed injection machine solutions and offer competitive quotations. Free mold testing is available after formal order confirmation.
