SHUANGHAO Machinery is a leading manufacturer and supplier of high-precision bottle cap molds for the global packaging industry. Specializing exclusively in the design and production of advanced bottle cap tooling, we provide comprehensive, customized solutions for manufacturers worldwide. With years of technical expertise and a strong commitment to research and development, we offer state-of-the-art molds that enable customers to produce high-quality plastic caps efficiently and cost-effectively.
SHUANGHAO Machinery proudly presents our 28mm Vertical Ribbed Oil Cap Mold—a precision-engineered tooling solution designed specifically for the production of oil caps with enhanced grip features. The 28mm neck finish is a standard size widely used for edible oil bottles, motor oil containers, and various industrial lubricant packaging . Our mold features vertical ribbed grip patterns that provide superior handling security, especially important for applications where oily hands can make smooth caps difficult to open.
1. Standard 28mm Neck Finish
The 28mm size is an industry standard for oil and lubricant packaging:
Widely compatible with standard 28mm bottle necks
Consistent thread geometry ensuring reliable sealing performance
Versatile applications across edible oil, automotive, and industrial sectors
2. Vertical Ribbed Grip Design
The vertical ribbed pattern offers significant functional advantages:
Enhanced grip security – increases friction between fingers and cap surface
Easy opening – particularly beneficial for oily hand conditions
Consistent rib definition – sharp, uniform pattern across all cavities
Optimized rib spacing – balancing grip performance with structural integrity
3. Precision Thread and Seal Engineering
| Feature | Specification |
|---|---|
| Thread Tolerance | ±0.02mm |
| Seal Surface | Precision-machined for leak-proof performance |
| Material Compatibility | HDPE, PP, chemical-resistant grades |
4. Premium Material Construction
| Component | Material | Hardness |
|---|---|---|
| Core and Cavity Inserts | S136 Stainless Steel | HRC 48-52 |
| Neck Rings | Nitrided Steel | HRC 45+ |
| Rib-Forming Inserts | Premium Tool Steel | HRC 50-55 |
| Mold Base | Chrome-plated P20 Steel | Pre-hardened |
Mold life: Engineered for 2-3+ million injection cycles
5. Multi-Cavity Configurations
| Cavity Count | Daily Output | Ideal Application |
|---|---|---|
| 16 cavities | 150,000-250,000 caps | Medium-volume production |
| 24 cavities | 250,000-400,000 caps | High-volume operations |
| 32 cavities | 350,000-550,000 caps | Large-scale manufacturing |
6. Advanced Hot Runner System
Individual temperature control within ±1°C
Weight variation maintained below 0.2 grams
Valve gate technology for clean gate vestige
| Parameter | Specification |
|---|---|
| Neck Finish | 28mm standard |
| Cap Type | Screw cap with vertical ribbed grip |
| Rib Pattern | Vertical anti-slip knurling |
| Cavity Options | 16, 24, 32 cavities |
| Cycle Time | 3-5 seconds |
| Weight Variation | < 0.2 grams |
| Material Compatibility | HDPE, PP, chemical-resistant grades |
| Certification | FDA food contact compliant |
Edible Oil Industry
Cooking oil bottles
Olive oil containers
Specialty culinary oils
Automotive Industry
Motor oil bottles
Transmission fluid containers
Power steering fluid
Industrial Lubricants
Hydraulic fluid packaging
Industrial oil containers
Lubricant bottles
CMM inspection verifying thread and rib pattern dimensions
Torque testing confirming consistent opening force
Leak testing ensuring seal integrity
Sample production available for customer approval
Specialized expertise: Deep understanding of oil cap grip and sealing requirements
Enhanced grip design: Vertical ribbing for easy opening with oily hands
Precision engineering: Consistent thread and seal accuracy
Premium materials: S136 steel construction for extended mold life
High efficiency: Multi-cavity configurations for optimal productivity
SHUANGHAO Machinery's 28mm Vertical Ribbed Oil Cap Mold delivers reliable, easy-grip closures for edible oil and industrial lubricant packaging. Contact us today to discuss your requirements.