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This section provides an overview for ejector pins as well as their applications and principles. Also, please take a look at the list of 24 ejector pin manufacturers and their company rankings. Here are the top-ranked ejector pin companies as of December, 2024: 1.J. K. Pins, 2.TORIN Products, Inc., 3.Metalloy.
Table of Contents
An ejector pin is a mold component used to eject the finished product from the mold during the aluminum die-casting and resin parts molding process. It plays a crucial role in mold-based molding, where molten metal or resin is poured between two molds. The product is then removed after it has cooled and solidified, facilitated by the ejector pin.
Essentially, without the Ejector Pin, extracting the product from the mold would be impossible.
Ejector pins are indispensable in mold-based molding, catering to die-cast molding with metal molds, such as aluminum, magnesium alloys, and cast iron, and for injection molding of various resin parts. Available as standard products, ejector pins come in round and square shapes, with round pins typically used for products with shallow depths like lids. They should be installed near ribs or areas with high mold release resistance. Conversely, square pins are preferred for products with deeper bases to minimize the visibility of whitening, a common issue in resin extrusion.
The ejector pin operates by pushing out and detaching the molded product that adheres to the mold. Molds, usually split into fixed and movable parts, allow the material to be injected in between. Once the mold opens, the ejector pin, embedded in the movable mold, protrudes to separate the product. This pin is attached to the ejector plate of the molding machine, which when actuated by the ejector rod, pushes the pin out, leading to ejection of the product.
The architecture of a straight ejector pin encompasses a sliding part, a non-sliding part, and a collar. The sliding part requires high precision for smooth operation and to prevent defects like burrs. The non-sliding part, designed to mitigate stress concentration, may undergo treatments like annealing for enhanced durability. Modifications to prevent rotation and ensure the integrity of the molded product and the pin itself are also common, such as adding protrusions or altering the pin's head shape.
This component, fitting into the core's mounting hole, must be precisely machined and have a smooth surface to minimize friction and prevent defects.
Located at the interface with the collar, this part is designed to absorb stress, with treatments applied to strengthen it against stress concentration. Depending on the product's design, preventing the ejector Ppin's rotation to avoid damage or deformation is often considered, using techniques like head modifications.
*Including some distributors, etc.
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TORIN Products, Inc. is a manufacturer of springs and wire forms that was established in 1965 in Nebraska, USA. The company produces various types of springs, including torsion springs that resist twisting, flat springs that can be made in complex shapes, and compression spring models for resisting compressive forces or energy storage purposes. The company also provides additional support, such as contract manufacturing, testing, and finishing services. Some of its notable clients are Raytheon, Ford, and Medtronic.
Based in Bayville, NY, SAE Manufacturing Specialties Corp. is an ISO-certified supplier and manufacturer of industrial equipment, chemicals, components, ordinance, electronics, and systems for industries ranging from aerospace to high tech to law enforcement. Examples of product offerings include raw materials, chemicals, and lubricants for industrial purposes to finished products such as security helmets for law enforcement, and military ordnances. SAE also provides research and development as well as technical support for other companies in similar industries.
READY Technology is the North American operation of a worldwide network of factories and branch offices and is based in Dayton, Ohio. The company manufactures and distributes components to the global metal stamping, plastic mold, and automation industries. The company is ISO 9001 certified and operates through the READY brand as well as Acrotech, Amcor, Associated Raymond Spring, and other brand names. The company’s product categories include Ready Benders, Ready SuperSprings, Nitrogen Gas Springs, Cam Units, and Guiding Elements. The company offers custom machining services for die sets, raw plates, and everything up to finished products.
PUNCH INDUSTRY USA INC. is a manufacturer that specializes in precision tools and machinery solutions which is headquartered in the USA. The company specialize in automotive parts and assemblies, electronic connectors, and aerospace components, by delivering excellent products for various businesses. With an intention to deliver excellent products and services, The company has established itself as a dependable partner for clients worldwide and allegiance to engineering expertise and customer satisfaction allows them to consistently provide cutting-edge solutions that meet the diverse needs of customers.
Precision Punch and Tooling, since 1965, has been a manufacturer of tools, dies, and mold components in Christian Lane, Berlin, Connecticut. The company’s catalog has close space punches, EDM die blanks, ejector punches, feeler gages, and ejector punch blanks. It also produces coatings, core pins, die buttons, wire die springs, and toolings for use in food and beverage, ammunition, medical, pharmaceutical, and surface treatment industries. The establishment is BBB accredited and has ISO 9001:2015, ITAR, ORI, and ISO 13485:2016 certifications.
CMH MANUFACTURING, based in Lubbock, Texas, USA, was formed in 1982 by Charles M. Hall as a manufacturer of Hall tilt-pour permanent mold casting machines and foundry systems. The company makes reverse tilting machines, casting catchers, hydraulic power units, and classic tilting machines. It also offers specialist equipment, rotary-style machines, remanufactured machinery, and foundry components for the processing, robotics, automotive, and engineering industries. As a partner of KUKA Systems, the company provides reconditioning services.
Production Materials Inc. was founded in 1981 and headquartered near Chicago in Wheeling, Illinois. The company is an ISO 9001:2015 certified distributor of fasteners and related components such as nuts, washers, and bolts to manufacturers as well as individuals. The company provides option types such as material, coating, and threading. The company also prototypes and designs parts and offers customization options on many of the parts available. The company also assists customers in the consolidation and standardization of existing parts along with inventory management assistance.
Plastixs, LLC was founded in 1999 and operates out of Shrewsbury, Massachusetts. Plastixs is a distributor for industrial, plastics processors, process companies, and equipment manufacturers as well as a producer of custom water manifold assemblies and accessories to equipment such as plastic processors, semiconductor equipment, x-ray machines computer servers. Plastixs’s offerings include AIRTECT plastic leak alarm aystem, ATI quick-change robotic automatic tool changers, Bunting magnets, Crizaf conveyors, and Moditec low speed granulators among many more.
Metalloy was founded in 1969 and is based in St. Charles, Illinois. Metalloy is a distributor of industrial and construction supplies. Metalloy offers tube & pipe products, PVF, die sets & plates, die & mold tooling, general tooling, steel storage, and SK hand tools. Tube & tube products include mechanical tubing, stainless steel tubing, and piping. PVF includes piping, fittings, flanges, valves, studded outlets, and machined rings. Die sets & plates include parallels, risers, and steel tools. Die & mold tooling include die punches, die buttons, drill busings, and mold components.
S & H Glenco Manufacturing, LLC is a US-based company that provides high-precision machining, fabrication, and assembly services to various industries, including aerospace, defense, medical, oil and gas. They specialize in manufacturing complex components and assemblies that require tight tolerances and strict quality standards. Established in 1968, the company become a dependable partner for many of its clients. While they have not received any awards, their steadfastness to providing cost-effective solutions has helped them earn a standing as a proven and capable manufacturing partner. The company continuous improvement and prioritizes investment in technologies and equipment to maintain a competitive advantage.
Headquartered in Minnesota, United States, EDM Sales and Supplies specializes in superior products and services in the EDM and mold-making industries. The company was founded in 1975 and has been progressing substantially. They aim to provide clients with a high standard of goods and services at affordable costs. With their exclusive line of Mold components and polishing supplies, customers are awarded the chance to purchase from a single vendor, which ultimately cuts costs. They credit their success to fast deliveries, a wide and varied catalog, and customer gratification.
Sunny Score, incorporated in 1996 in Simpang Ampat, Penang, Malaysia, is a manufacturer of tools and equipment used in assemblies and mold-making operations. The company products are die coil springs, ejector pis, guide bushes, and mold locking components. It also offers positioning components, hot runners, mold bases, and accessories such as end mills, positioning devices, and grinding machinery used in printing, polishing, cutting, and rilling in manufacturing, processing, industrial, and automotive fields.
J. K. Pins, established in 2011, is a manufacturer, exporter, and supplier of punches and pins in the Industrial Area of Dera Bassi, Haryana, India. The company product categories are ejector pins, fastener punches, HSS tool bits, metal punches, and HSS punches used in the injection molding sector. The firm has manufacturing, packaging, warehousing, marketing, and testing units and exports products to Argentina, Algeria, Bangladesh, and the United States of America.
Huizhou Zhanci Hardware Products Co., Ltd., founded in 2017, is a manufacturer of non-standard fasteners in Huizhou City, Guangdong, China. The company's product line has multi-die punches, knock-out pins, press tools, screws, and dies made from alloy steel, segmented tungsten carbide, carbide, and brass. It also makes wafers, transfer fingers, grippers, press tools, and nuts used in manufacturing, industrial, automotive, aerospace, and manufacturing industries. The firm’s trading facility was opened in 2016 in Hong Kong.
Vardhaman Dies and Mould Tools is a die castings and allied products manufacturers established in 1995 and incorporated in 2010 in Maharashtra, India. The company has various items in its product portfolio, including but not limited to Spring Dowel Pins, Piercing Punches, Ejector Pins, and even Polyurethane Elastomers. Its facilities allow making customized products, where design, shape and size are tailored to customers' needs. The firm is certified with ISO 9001:2008, its tools comply with AISI and DIN standards, and its products are exported all over the world, especially to The United States Of America, Indonesia, Australia, Bangladesh and Thailand.
Amrik Engineers is a manufacturer of industrial pins tools that is headquartered in Vishnu Garden, New Delhi, India and has been in operation since 1992. The company designs, manufactures, and supplies many types of industrial pins including ejector and stepped elector pin, blade elector and sleeve ejector pin, core and tapper interlocks, guide pins and guide bush. Its products are used in multiple of industries, including manufacturing, engineering, and construction. The company also offers technical support, installation, and training services to ensure efficient utilization of its products.
HUANGYAN JINHONG MOULD PARTS CO.,LTD. (HJMP) is a Chinese manufacturer of mold parts that was established in 2002 in QingXi, GuangDong. The company primarily produces guide, core, and ejector pins, as well as locking blocks and positioning components. It also offers mold core and cavity components, dating inserts, and slide blocks. These are crucial in industrial plastic injection as well as die cast molding processes. HJMP products are used by clients such as BYD Company Limited, Gree Electric Appliances Inc., and the Foxconn Technology Group.
Hong Yue, established in 1994, is an ISO 9001:2008 certified professional manufacturer of mold components and stainless steel objects based in Guangdong province, China. The company product categories are ejectors, guide pillars and bushes, shafts, roller bearings, and hot runners. It also has gauges, racks, chassis cabinets, ball retainers, and stamp dies for financial instruments, power tools, automotive motors, vending machines, and medical equipment. It has milling, drilling, grinding, lathing, and wire-cutting capabilities.
GS Machining is a custom mold part manufacturer and exporter that was established in 2011 in Dalang, Dongguan, China. The company provides sleeves, pins, dies, bushings, and punches made of steel or carbide. It also produces CNC lathe, turret, and milling components for the gas, automobile, motor, caution control, and hardware industries. It provides materials that are already in stock, including alloys, brass, stainless steel, copper, and aluminum. The export destinations for the goods are Argentina, Germany, Poland, Spain, and the Czech Republic.
HASCO, founded in 1924 with headquarters in Germany, is a manufacturer, distributor, and supplier of modular standard mold making equipment, ready-to-mount system components, and tools. The company's product line includes mold steel from European suppliers, machined plates, guiding elements, tool components, and measuring technology. The company also provides the HASCO SET of standard engineering tools and offline software for designers of molds, which includes a library of more than 100,000 mold units.
Amtek Tool and Supply, Inc. based in Madison Heights, MI. Amtetk is an online super market for tools, supplies, and other hardware for individual, professional, and corporate customers. Product types include milling, threading, and turning devices, tooling systems, saws, broaching and deburring bits, cutting tool blanks and spares, abrasives, power tools, hand tools, safety equipment, measuring devices, lubrication, sanitation supplies, storage, pneumatics, shipping supplies, transmissions, and various other hardware and shipping supplies. Amtek’s online storefront offers precise filters to help find exact products to meet customer needs.
Rabourdin SAS, established in 1926 and headquartered in Centre, France, is a distributor that specializes in the fields of mold, cutting, stamping, and special screws. The company offers a variety of products, including shoulder bolts, ejector pins, and accessories for molds. It also offers sprue bushings with dowel pin fixing, which are mechanical parts used in injection molding. Its product enhanced surface hardness to improve wear and corrosion resistance through tenifer nitriding. It serves a diverse range of industries, including mold and die, machinery, fastening, lifting, and more.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | J. K. Pins |
11.6%
|
| 2 | TORIN Products, Inc. |
8.5%
|
| 3 | Metalloy |
7.8%
|
| 4 | Sunny Score |
6.2%
|
| 5 | Amtek Tool & Supply |
6.2%
|
| 6 | HUANGYAN JINHONG MOULD PARTS CO.,LTD. |
5.4%
|
| 7 | GS Machining |
4.7%
|
| 8 | Ready Technology, Inc. |
4.7%
|
| 9 | Production Materials, Inc. |
4.7%
|
| 10 | SAE Manufacturing Specialties Corp |
4.7%
|
Derivation Method
The ranking is calculated based on the click share within the ejector pin page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
11 | 52.4% |
|
India
|
4 | 19.0% |
|
China
|
4 | 19.0% |
|
Malaysia
|
1 | 4.8% |
|
France
|
1 | 4.8% |
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