Beverage Dispenser Plastic Parts moulding

In addition, our company has established cooperative relationships with plastic raw material suppliers, printing manufacturers, etc. to ensure the supply of raw materials and printing quality. Through our rich experience and perfect supply chain, our company can provide customers with high-quality customized Beverage Dispenser Plastic Parts moulding products to meet their specific needs. At the same time, we have 10 years of professional foreign trade service experience, understand the foreign trade process, and better serve our customers. For Beverage Dispenser Plastic Parts moulding products, we can make corresponding plastic parts, which is mainly done through injection molds.

## Selection Based on Component Function (Directly Correlated to Molding Difficulty)

### 1) Liquid Reservoirs / Transparent Containers

- **PCTG (Tritan) – Preferred Choice:** Resistant to fruit acids, dishwasher-safe, withstands thermal shock, BPA-free, and highly resistant to stress cracking; the standard for export-oriented products.

- **PETG:** Cost-effective; however, it has a lower temperature tolerance and is unsuitable for prolonged exposure to high-temperature cleaning.

- **PC:** Offers high temperature resistance, but is prone to stress cracking when exposed to acidic beverages or cleaning agents; often prohibited by many clients.

- **Transparent PP:** Semi-transparent, low-cost, but possesses poor light transmission.

### 2) Valve Bodies, Valve Cores, Spouts, Connectors, and Pistons (Precision Friction & Sealing)

- **Food-Grade POM (Copolymer):** Low friction, dimensionally stable, wear-resistant, and resistant to weak acids; ideal for sliding valve cores and faucet bodies. ⚠️ Not suitable for long-term high-temperature steam CIP (Clean-in-Place) processes.

- **Food-Grade PP (High-flow, Chemically Resistant Grades):** A cost-effective choice; resistant to acids and dairy; suitable for low-pressure connectors and housings.

- **PPS / PPSU / PSU:** Used for commercial-grade equipment, high-temperature rinsing, and CIP processes; resistant to disinfectants and capable of withstanding long-term exposure to 120–160°C. These materials offer high rigidity and low creep, though they entail higher mold costs and a narrow processing window.

- **PA66+GF (Food-Grade):** Suitable for heavy-duty threads, locking components, and high-torque structural parts. Note that this material is hygroscopic and requires drying; it is not suitable for long-term immersion in acidic fruit juices.

### 3) Float Balls, Flow Diverters, and Pump Housings (Chemical Resistance & Toughness)

- **HDPE:** Resistant to acids and fats; exhibits low adsorption and does not retain odors—ideal for long-term contact with fruit juices or dairy.

- **Chemically Resistant PP Grades:** Offer a balance of heat resistance and suitability for cleaning processes.

### 4) Overmolded Sealing Components (Two-Shot Molding / Insert Molding)

Substrate: PP / POM / PPS; Overmolding Material: **Platinum-cured Liquid Silicone Rubber (LSR) / TPE** Food-grade materials; direct in-mold overmolding to minimize assembly gaps and potential leak points. Peroxide-cured silicone is prohibited (as it tends to retain odors and can catalyze the spoilage of fruit juices).

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> Prohibited materials: Standard ABS, standard PVC, and recycled/mixed scrap—all of which are prone to absorbing odors, leaching substances, or cracking when exposed to citric acid or sodium hypochlorite.

## II. DFM (Design for Manufacturing) Structural Review (Specific to Dispensers)

1. **Hygienic Design Priority: No "Dead Zones" for Contamination**

Use radii (R) ≥ 0.8 mm; avoid narrow crevices or inaccessible undercuts; ensure smooth transitions for ribs and flow-directing surfaces; and position mold parting lines/inserts away from surfaces that will come into contact with liquids.

2. **Sealing and Fit Tolerances are Critical**

For valve cores, valve seats, and threaded connectors, maintain tolerances of ±0.03 to ±0.05 mm. POM and PPS offer stable shrinkage, whereas PP has high shrinkage (1.5–2.0%)—requiring advance compensation in the fit clearances. Ensure that weld lines do not occur on sealing surfaces or load-bearing areas.

3. **Draft Angles**

Apply a draft angle of ≥ 2° for the exterior of transparent components, and ≥ 2.5° for the internal bores of sliding valve cores. For POM friction surfaces, ensure balanced draft angles to prevent surface scuffing or galling.

4. **Gating Strategy**

- For valve bodies and connectors: Use side gates or fan gates, ensuring gate marks are positioned away from fluid-contact surfaces.

- For transparent containers: Use low-shear gating to prevent jetting or "cloudy" flow marks.

- For multi-cavity valve bodies: Prioritize valve-gated hot runner systems to ensure balanced filling and minimize weld lines.

- **Gating is strictly prohibited on sealing circumferences or sliding friction surfaces.**

5. **Venting**

Incorporate venting channels in thin-walled fluid paths, around pins, and along sliding component interfaces. Recommended vent depths are 0.01–0.02 mm for transparent materials, and 0.01–0.015 mm for POM/PPS. Trapped air can severely compromise the structural integrity of weld lines, leading to leaks during operation. 6. **Threaded Features**

For external threads, prioritize unscrewing-style mold ejection; for high-volume internal threads, use a motor-driven unscrewing mechanism. Avoid "force-pulling" (stripping) cores whenever possible to prevent the formation of plastic dust or burrs on the threads. Include a thread relief groove (undercut) at the end of the threaded section.

We are a Beverage Dispenser Plastic Parts moulding manufacturer, providing high-quality Beverage Dispenser Plastic Parts moulding manufacturing. As long as you want to customize/develop Beverage Dispenser Plastic Parts moulding products, you can find us. We have professional injection mold design and mature manufacturing technology, providing you with one-stop service, from product design-mold making-product production-product packaging-product transportation, we can help you in every link. As long as you come to us, we will provide you with the ultimate service and satisfy you in terms of product quality, production time, information dialogue, etc.

Plastic Injection Mould making

Plastic molding specifications

Mold design:

Transaction process:

Mold testing:

Product packaging

Factory

We are Custom Plastic Mold factory. Our factory is plastic injection mold maker. we has 17 years of experience in professional custom plastic mold and 10 years of foreign trade experience. We are custom Plastic Mold supplier. We can provide custom Plastic Mold service. Our factory can make the Injection molded plastic parts, and the quality of the products will satisfy you.

We have more than 50 high-end machines and hundreds of engineers and designers. We can provide one-stop service, from product design - mold making - product production - product packaging - transportation. We have a complete production chain. We can meet all your requirements.

Services we provide:

Professional custom mold service, Plastic mold design and manufacturing .plastic product production, product design, mold design, blow mold customization, rotational mold customization, die-casting mold customization. 3D printing services, CNC manufacturing services, product packaging, customized packaging, shipping services.

We always adhere to the principles of quality first and time first. While providing customers with the highest quality products, try to maximize the production efficiency and shorten production time. We are proud to tell every customer that our company has not lost any customer since its establishment.If there is a problem with the product, we will seek a solution actively and take responsibility to the end.

FAQ

Q1: Are you trading company or manufacturer ?

A: We are manufacturers.

Q2. When can I get the quotation?

A: We usually quote within 2 days after we get your inquiry.

If you are very urgent, please call us or tell us in your email so that we can quote for you first.

Q3. How long is the lead-time for mold?

A: It all depends on the products' size and complexity. Normally, the lead time is 25 days.

Q4. I have no 3D drawing, how should I start the new project?

A: You can supply us a molding sample, we will help you finish the 3D drawing design.

Q5. Before shipment, how to make sure the products quality?

A: If you don't come to our factory and also don't have the third party for inspection, we will be as your inspection worker.

We will supply you a video for production process detail include process report, products size structure and surface detail, packing detail and so on.

Q6. What is your payment terms?

A: Mold Payment: 40% deposit by T/T in advance, 30% second mold payment before sending out the first trial samples, 30% mold balance after you agree the final samples.

B:Production Payment: 50% deposit in advance, 50% before sending out the final goods.

Q7: How do you make our business long-term and good relationship?

A:1. We keep good quality and competitive price to ensure our customers benefit for best quality products.

2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.