Multi-cavity Pen Mold - Fanstar Injection Mold Manufacturer Created It To Accelerate And Reduce Costs for The Mass Production of Markers And Gel Pens.

Traditional single-cavity molds can only form one pen at a time, with low production capacity, high energy consumption and expensive labor costs, which are common pain points in the stationery industry. Fanstar has been deeply engaged in multi-cavity pen mold technology, integrating 4-cavity, 8-cavity, 16-cavity, 32-cavity and even 64-cavity molds into a single set of molds. With each opening and closing, it can simultaneously produce dozens of markers or gel pens, increasing production capacity by over 300% and reducing the cost per pen by 50%. It truly achieves "multiple products in one mold and one-time molding".

The core difficulty of multi-cavity pen molds lies in the balance of flow channels and synchronous filling. Fanstar uses German Moldflow for rheological analysis and combines it with its self-developed hot runner temperature control system to ensure that the temperature, pressure and shear rate in each chamber are exactly the same, eliminating short shots, flash and color differences. To address the pain point of the fine tube of gel pens being prone to eccentricity, we have incorporated precise guiding inserts and a vacuum exhaust structure, ensuring that the concentricity of the pen tube is ≤ 0.02mm, allowing for smooth writing without ink leakage. In response to the pain point of the fiber head of marker pens being prone to clogging, we have optimized the gate size and cooling waterway to allow the melt to pass through quickly, keep the fiber head fluffy, and ensure uniform ink output without any lines.

In terms of material selection, the multi-chamber pen mold is made of imported S136 stainless steel, vacuum quenched with HRC48-52, mirror-polished with Ra0.03, which is corrosion-resistant and wear-resistant, and can continuously produce over 5 million molds. When used in conjunction with Longji standard mold frames and HASCO accessories, it features high interchangeability and simple maintenance. Each set of multi-cavity pen molds undergoes a 3-hour continuous mold test on a 250T high-speed machine before leaving the factory. The dimensions, weight and appearance are fully inspected to ensure that they can be mass-produced upon delivery.

Customer case: A global stationery brand originally used 8 sets of single-cavity molds to produce gel pens, with a daily output of 80,000 pieces, requiring 16 machines and 32 workers. After introducing the Fanstar 32-cavity multi-cavity pen mold, only 4 machines and 8 workers were needed. The daily output was increased to 320,000 pieces, and the yield rate rose from 92% to 99%. The mold investment was recovered within half a year. Customer review: "Fanstar's multi-cavity pen molds have enabled us to minimize the cost per piece, halp the delivery time, and boost our market competitiveness." "

Choosing Fanstar multi-cavity pen molds means choosing high efficiency, high quality and low cost. We offer a one-stop service covering product design, mold flow analysis, mold manufacturing and mass production support, with a 7× 24-hour rapid response. Contact Fanstar injection mold manufacturer immediately and let multi-cavity pen molds open up the global market for your markers and gel pens, seizing the initiative!