プラモール精工 List of Products and Services

The "Radiator Sprue" is a sprue bush that changes the entrance of the resin from the conventional round shape to an H shape. By adopting the H shape, pressure loss is minimized, allowing molding at the same pressure as the conventional sprue bush. There are three types of SR to choose from: SR11, SR16, and SR20.

• Plastic Mould

The "Gastoose Cleaning Nozzle" is a product developed to resolve clogs in Gastoose. By attaching it to your air gun and spray can, you can easily perform Gastoose cleaning, and it can be done effectively and easily even when the mold is mounted on the molding machine. You can replace the tip of the air gun currently in use by the customer for this purpose. Additionally, we are running a 30% OFF campaign until the end of January 2021. (Limited to 2 units per company. The third unit and beyond will be sold at the regular price.) 【Features】 ■ Simultaneous injection of air and cleaning solution ■ Developed to resolve clogs in Gastoose ■ Easy Gastoose cleaning by attaching to your air gun and spray can ■ Effective and easy cleaning even when the mold is mounted on the molding machine ■ Replaceable tip for the air gun currently in use by the customer *For more details, please refer to the PDF document or feel free to contact us.

• Other work tools

This document introduces the know-how for manufacturing molds that enable non-stop molding. It includes an explanation of non-stop molding, illustrations of non-stop molding, and easy-to-understand explanations in comic form. Additionally, it comes with a product catalog. It is aimed at mold designers and molding processing engineers. Please make use of it. 【Overview (Excerpt)】 ■Introduction ■Explanation of Non-Stop Molding - Why non-stop molding is necessary - The root causes of factors that hinder non-stop molding are the same - Non-stop molding is best with low-pressure molding - Set effective vents during mold design and manufacture low-pressure molding molds - Molding conditions should be determined in advance *For more details, please refer to the PDF document or feel free to contact us.

• Technical and Reference Books

Due to the occurrence of bubble defects in the product section used for connectors, we implemented gas vents and air vents to reduce defects. After implementation, the gas vent effect allowed for the discharge of gas and resin in front of the product section, preventing mold contamination and extending maintenance intervals. Additionally, low-pressure molding became possible, enabling stable production quality. 【Case Study】 ■ Objective: Improvement of bubble defects in the product section ■ Molding Information - Size: W16×D15×H14mm - Material: PBT (Juranex) - Application: Connector (mainly for home appliances) - Number of pieces: 4 - Molding machine: 50 tons ■ Effects - Bubble defect occurrence rate: 0.50% → 0% - PL surface cleaning interval: 6H → Not required - Disassembly cleaning interval: 4 days → 8 days - Inspection time per piece: 3 seconds → 0.2 seconds *For more details, please refer to the PDF document or feel free to contact us.

• Other molds
• Other machine elements

To improve the welding defects of products used in connectors, we have introduced gas toast. By using it directly under the sprue, we can exhaust gas before it enters the product section, thereby improving welding defects. Additionally, the maintenance interval for the mold has doubled. 【Case Study】 ■Objective: Improvement of welding defects ■Molding Information - Size: W35×D15×H6mm - Material: PA 66 (Leona GF0%) - Application: Connector (mainly for home appliances) - Number of pieces: 2 - Molding machine: 50t ■Effects - Welding defect occurrence rate: 0.20% → 0% - Disassembly cleaning interval: 2 days → 4 days - Inspection labor time: 5 sec → 0.3 sec *For more details, please refer to the PDF document or feel free to contact us.

• Other molds
• Other machine elements

We introduced Gastose to improve gate clogging in products used for connectors (short prevention). By using Gastose directly under the sprue, we can exhaust gas before it enters the product section, preventing gate clogging during low-pressure molding. As a result, we were able to eliminate gate clogging and improve short defects, while also reducing inspection man-hours. 【Case Study】 ■ Objective: Improvement of gate clogging (short prevention) ■ Molding Information - Size: W25×D5×H9.1mm - Material: 9T Nylon (Genesta G2330 GF33%) - Application: Connector - Number of pieces: 2 - Molding machine: 18 tons ■ Effects - Short defect occurrence rate: 0.48% → 0.002% - Inspection man-hours: 3 sec → 0.5 sec *For more details, please refer to the PDF document or feel free to contact us.

• Other molds
• Other machine elements

We introduced Gastose to improve short defects in products used for connectors. As a result, using Gastose improved the occurrence of short defects. Due to the gas venting effect, gas residue was expelled in front of the product section, extending the mold maintenance interval by five times. 【Case Study】 ■ Objective: Improvement of short defects ■ Molding Information - Size: W38.8×D5.5×H4.7mm - Material: PPS (Duralife GF40%) - Application: Connector (mainly for home appliances) - Quantity: 2 pieces - Molding Machine: 15t ■ Effects - Short defect occurrence rate: 2.8% → 0.001% - Disassembly cleaning interval: 1 day → 5 days *For more details, please refer to the PDF document or feel free to contact us.

• Other molds
• Other machine elements

At Plamore Seiko, we conducted tests using 10 commonly used resins to address issues related to the introduction of gas turbines, specifically focusing on "selection of vent width" and "measures against resin leakage." This document includes the details of the tests conducted to confirm the actual state of resin leakage. We present the test conditions and the results for various manufacturers' resins such as PPS, LCP, elastomers, nylon, and PP in tabular form. [Contents] ■ Test Objectives ■ Test Conditions ■ Resin Test Conditions ■ Test Results *For more details, please refer to the PDF document or feel free to contact us.

• Other molds
• Other machine elements

During the molding process, there are times when the cooling time is extended to minimize "warping" and "deformation." Have you encountered such cases? "Large deformation or warping" → "Longer cooling time for correction within the mold" If the factors causing warping and deformation are understood, countermeasures can be implemented, allowing for a shorter cooling time. This document introduces "why warping and deformation occur," "the placement of gas traps," and "specific customer effect examples." [Contents] ■ Why warping and deformation occur ■ Placement of gas traps ■ Specific customer effect examples (both are box-shaped covers) ■ Conclusion *For more details, please refer to the PDF document or feel free to contact us.

• Other molds
• Other machine elements

We introduced Gastose to improve short shots in the thin-walled sections of products used in connectors. By using Gastose, we were able to eliminate short shots, preventing mold contamination and extending maintenance intervals by three times. Additionally, the reduction in defect rates allowed us to shorten inspection times. 【Case Study】 ■ Objective: Improvement of short shots in thin-walled sections ■ Molding Information - Size: W10.5×D6×H6.2mm - Material: PA 66 (Amilan GF 20%) - Application: Connectors (mainly for home appliances) - Number of parts: 8 - Molding machine: 50 tons ■ Effects - Short shot defect occurrence rate: 1.43% → 0% - PL surface cleaning interval: 6H → Not needed - Disassembly cleaning interval: 5 days → 15 days - Inspection labor reduction: 4 sec → 0.2 sec *For more details, please refer to the PDF document or feel free to contact us.

• Other molds
• Other machine elements

"Gas Tose" refers to products equipped with gas vent (air vent) functions such as ejector pins and core pins. The impetus for its creation was a request for cost reduction due to an increase in the delivery quantity of molds transferred from another company. When we produced 24 pieces, pinholes occurred in the outer 12 pieces. Even after trying to improve the situation by adding many vents to the cavity, there was no effect, so we decided to realize the concept we had been considering for some time: "venting gas from inside the ejector pins." After many repeated failures, we finally completed it. When we placed one of the completed gas vent pins (Gas Tose) directly under the sprue, the pinholes were beautifully resolved. *For more details, please refer to the PDF document or feel free to contact us.

• Other molds
• Other machine elements

We will introduce the concept of gas vent installation. It is important to remove the gas generated inside the heating tube before it enters the product section of the mold, specifically by providing vents at the "directly below the sprue" or "runner end" to eliminate the gas. The top priority is directly below the sprue. The nozzle tip of the molding machine is where gas concentrates, making it the most effective point for the resin to collide first. If gas cannot be completely removed directly below the sprue, it should be installed at the runner end. If gas is still not fully eliminated, it can be installed in the product section. [Installation Priority] Priority 1: Directly below the sprue Priority 2: Runner end Priority 3: Product section *For more details, please refer to the PDF document or feel free to contact us.

• Other molds
• Other machine elements

"Gastose" is a gas venting pin equipped with gas vent (air vent) functions such as ejector pins and core pins. It features a gradient processing that efficiently discharges gas generated within the mold. Depending on the fluidity of the resin, gas vents with widths ranging from 0.005 to 0.05 mm can be incorporated, making it compatible with various resins. 【Benefits of Introducing Gastose】 ■ Enables low-pressure molding, resulting in smaller burrs ■ Reduces the likelihood of gas vent clogging in the cavity, preventing short shots ■ Helps prevent gas burn on products and reduces sink marks ■ Decreases inspection labor hours due to lower defect rates ■ Prevents damage to core pins *For more details, please refer to the PDF document or feel free to contact us.

• Other molds

Gastose was born from the need to address pinhole issues in connectors from injection molding molds. With the goal of "all products being good from the mold," it is a gas vent pin that was developed through a review of mold structure, design, prototyping, mass production, and continuous improvement activities on-site. Depending on the fluidity of the product material, gas vents with widths ranging from 0.005 to 0.05 can be incorporated, making it compatible with any type of resin. **Benefits of Introducing Gastose** - Improved quality (reduction in defect rates leading to lower costs) - Enables low-pressure molding, resulting in smaller burrs. - Prevents gas burn on products and reduces sink marks. - Prevents damage to core pins (reducing maintenance labor). - Reduces purging and waste shots (saving material costs). - Eliminates factors causing chocolate stops (stopping continuous molding). - Keeps molds clean and reduces maintenance frequency. *For more details, please request materials or view the PDF data available for download.*

• Other molds

This is a pin that discharges gas from the resin injected from the injection molding machine nozzle. It can accommodate any type of resin by incorporating a gas vent with a width ranging from 0.005 to 0.05, depending on the fluidity of the product's material.

• Other molds

This is a pin that discharges gas from the resin injected from the injection molding machine nozzle. It can accommodate any type of resin by incorporating gas vents with widths ranging from 0.005 to 0.05, depending on the fluidity of the product's material.

• Other molds

This is a pin that discharges gas from the resin injected from the injection molding machine nozzle. Depending on the fluidity of the product's material, a gas vent with a width of 0.005 to 0.05 can be incorporated, making it compatible with any type of resin.

• Other molds

This is a pin that discharges gas from the resin injected from the injection molding machine nozzle. It can accommodate any type of resin by incorporating gas vents with widths ranging from 0.005 to 0.05, depending on the fluidity of the product's material.

• Other molds

This is a pin that discharges gas from the resin injected from the injection molding machine nozzle. Depending on the fluidity of the product material, a gas vent with a width of 0.005 to 0.05 can be incorporated, making it compatible with any type of resin.

• Other molds