Ultra-High Precision Large Gate Mold Base

The SIKAIDA Ultra-High Precision Large Gate Mold Base is specifically customized for two-platen injection molds, meeting the needs of large-scale, high-precision injection molding. As a mold structural support, it ensures efficient and stable production. As a reliable supplier, SIKAIDA has a professional factory in China, integrating R&D, production, testing, and after-sales service to provide solutions for global customers.

Product Details

1. High-Precision Design Standards

- Dimensional Accuracy: Core mating surfaces within ±0.005mm, guide system within ±0.002mm, ensuring component fit.

- Flatness: Upper and lower platen parallelism within 0.02mm/m, avoiding uneven deformation under injection stress.

- Positional Accuracy: Guide pillar hole position ±0.01mm, locating pin hole position ±0.008mm, ensuring precise alignment of moving and fixed molds.

2. Large-Scale Structural Design

- Specifications: Compatible with molds ranging from 400mm×400mm to 1200mm×800mm, covering mainstream large-scale injection molding needs.

- Thickness Optimization: Finite element analysis optimizes wall thickness, balancing strength and material savings.

- Reinforced Structure: Built-in mesh reinforcing ribs resist injection pressure deformation, ensuring long-term stability.

3. High-Rigidity Guiding System

- Guide Pillars and Bushings: SKD61 material with surface hardening, low friction, high wear resistance, extending service life.

- Guiding Accuracy: Four-pillar guide with a gap of 0.01-0.02mm, preventing molding misalignment.

- Reset System: Precision reset rod ensures consistent mold closing, reducing scrap rate.

4. High-Efficiency Cooling System

- Cooling Water Circuit: 3D printing conformal cooling improves efficiency by over 30% and shortens cooling time.

- Temperature Control Accuracy: ±1℃, ensuring product dimensional stability and preventing deformation.

- Rapid Circulation: Optimized water circuit layout shortens injection molding cycle time by 20-25%.

5. Precision Positioning and Clamping System

- Positioning System: Positioning pins and bushings have a fit accuracy of H7/g6, ensuring precise positioning.

- Clamping Mechanism: High-strength bolts with anti-loosening design ensure uniform clamping force and prevent mold damage.

- Safety Protection: Built-in limit switches prevent misoperation and ensure production safety.

Core Features

1. Ultra-High Precision: Reaches international advanced level, meeting the requirements of high-precision products.

2. Strong Stability: Optimized design and material selection, suitable for high-intensity production.

3. High Efficiency and Energy Saving: Shortens production cycle and improves production efficiency.

4. Durable: High wear resistance and corrosion resistance, reducing replacement costs.

Application Areas

Ultra-High Precision Large Gate Mold Base is widely used in large-scale precision injection molding applications such as automotive interiors, home appliance housings, and electronic products, providing support for high-quality production across various industries.

Manufacturing Process Introduction

1. Design Analysis and Simulation

- CAE simulation of structure, heat conduction, and injection molding process ensures reasonable design.

- Mold flow analysis optimizes water channels and predicts molding defects; finite element analysis verifies strength and stiffness.

2. Precision Machining Process

- Rough machining (CNC gantry milling machine, accuracy 0.1mm) → Finish machining (high-speed CNC, Ra≤0.8μm).

- Special machining (EDM for complex surfaces) + precision grinding + manual finishing ensures accuracy.

3. Heat Treatment and Surface Treatment

Temperature treatment (HRC28-32), surface hardening (guide pillars and bushings HRC48-52), anti-corrosion treatment improves rust resistance.

4. Precision Assembly and Debugging: Ultrasonic cleaning → precision assembly → coordinate measuring machine (CMM) inspection → T0 trial molding, ensuring accuracy and stability.

Development Trends:

1. Intelligent Integration

Sensors are embedded in the Ultra-High Precision Large Gate Mold Base for real-time monitoring; AI optimizes process parameters, predicts equipment maintenance, and reduces downtime costs.

2. Additive Manufacturing Innovation

3D printing with conformal cooling and integrated molding; topology optimization achieves lightweighting (30% weight reduction).

3. High-Efficiency Production Technology

Rapid mold clamping (50% reduction in mold change time), adaptable to automated production lines, and big data-driven optimization of process parameters.

Frequently Asked Questions:

Q1: What are the main materials of the Ultra-High Precision Large Gate Mold Base?

A1: The main material of the mold base is high-quality carbon structural steel 45# or 50#; guide pillars and bushings use bearing steels such as SKD61 and SUJ2; some high-end applications use pre-hardened mold steel P20 or 738H.

Q2: What is the typical manufacturing cycle of the mold base?

A2: Depending on the complexity and size, the manufacturing cycle is generally 15-45 days. Standard mold bases take 15-20 days, while non-standard customized mold bases require 30-45 days, including the entire process of design, processing, heat treatment, assembly, and testing.

Q3: How to ensure the precision and stability of the mold base?

A3: Precision is ensured through the following measures: ① Strict heat treatment process ensures material stability; ② Precision machining equipment ensures processing accuracy; ③ A complete testing system verifies the final precision; ④ Rust and corrosion prevention treatment ensures long-term accuracy.

Q4: What injection molding processes is the Ultra-High Precision Large Gate Mold Base suitable for?

A4: This mold base is suitable for various injection molding processes, including high-pressure injection molding, low-pressure injection molding, two-color injection molding, and IMD (In-Mold Decoration), and is particularly suitable for products requiring high appearance quality and precise dimensional accuracy.

Q5: How to maintain and service the mold base?

A5: ① Regularly check the lubrication of the guide pillars and guide sleeves, and add grease in time; ② Keep the mold frame clean and clean up residual glue and debris in time; ③ Regularly check the accuracy and adjust it in time if any abnormality is found; ④ Apply anti-rust oil and store properly when not in use for a long time.