This section provides an overview for plungers as well as their applications and principles. Also, please take a look at the list of 30 plunger manufacturers and their company rankings. Here are the top-ranked plunger companies as of June, 2023: 1.Pearl Technologies Inc., 2.Valco Valley Tool & Die Inc, 3.Vlier.
Table of Contents
A plunger is a mechanical component that has a spring, a retainer, and a ball or pin at its tip. When a load is applied to the tip, it sinks into the body, and when it is released, it returns with the force of the spring.
Plungers are machine element parts that fix and position workpieces by sliding and swiveling. They can be easily incorporated into equipment and devices without having to design and manufacture pins, springs, and hold downs by themselves.
The types of plungers are described below.
Plungers are used in a wide variety of applications, including positioning of equipment and devices, workpiece extrusions, jigs for positioning drill holes, and lever positioning. They are used in food, packaging, printing, and hand-song making machines.
Below are some examples of use for each plunger.
Ball Plunger: Useful for positioning of slide mechanism. When a load is applied, the ball at the tip sinks into the body, and the plunger load at the notch is released to allow the ball to return to its original position by spring force.
Pin Plunger: Useful for pushing out a workpiece. When a load is applied to the pin at the tip, the pin sinks into the body and returns to its original position when the load is released.
Indexing Plungers: Used for positioning, the pin retracts or pops out when the knob is operated.
There are two types: return type and rest position type. The former requires constant pulling of the knob to retract the pin, while the latter allows the pin to be held even when released from the knob.
The shape of the tip can be tapered or spherical. In the former case, a hole is drilled in the mating part, but rattling occurs depending on the amount of clearance between the hole and the pin, while in the latter, the mating part is V-grooved and no rattling occurs.
The pressure indication of the plunger uses load and newtons, where the minimum pressure is the force required for the plunger tip to start sinking and the maximum pressure is the pressure at the point where the plunger has sunk fully into the body.
It is important to select the appropriate shape for the application and to check the load and size.
*Including some distributors, etc.
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Hartford Technologies was founded in 1926 in Hartford, Connecticut and is currently headquartered in the suburbs of Hartford in Rocky Hill. The ISO 9001 certified company is a manufacturer of custom bearings and assembly solutions for the automotive, agriculture, medical, and other industries. The company has four primary product categories: Custom Bearings & Components, Precision Balls, Bearing Parts, and Precision Pins, Shafts, and Rollers. The company’s manufacturing and service capabilities include prototype development, 3D modeling, technical support including inventor management, and quality control systems.
ONExia Inc is based in Exton, Pennsylvania and is a robotics integrator, custom machine builder, and industrial distributor. ONExia specializing in manual process automation and assists manufacturers of all sizes increase throughput with cutting edge technology. ONExia works with customers to develop turnkey custom machines including 2D & 3D vision system integration, software design & development, and machine safety services. ONExia uses robotics to automate line packaging. ONExia also offers robot palletizers that are compatible with new or existing packaging lines.
All Jetting Technologies Inc., in South Florida, is a family-owned company that provides affordable and quality products. The company manufactures rotating waterjet guidelines, water blast nozzles, and high-pressure and ultra-high-pressure water jetting hose fittings. It also specialize in UHP Hydro Blast surface preparations, fittings, adapters, and parts for industrial work environments in the hydro jetting industry. All Jetting Technologies, Inc. is also a distributor for Parker Hannifin's high-pressure hydroblaster , Blaster hoses, Ultra High Blaster Hoses, and Ultra High Pressure Hydroblasting Hoses
Ruland Manufacturing Co., Ltd. was founded in 1937 and is headquartered in Marlborough, Massachusetts. The ISO 9001:2015-certified company began by creating a wide range of products such as bicycle tire pumps and various fittings. The company pivoted strategies in the 1970s to manufacture fittings such as shaft collars and couplings, which are now used in medical devices, robotic systems, food processing, and in machine tools. The company’s current product list includes machine components, rubber bumpers, rollers, couplings, and indexing plungers.
Elite Restaurant Equipment was founded in 2013 and headquartered in Newark, New Jersey. Elite Restaurant Equipment is a distributor of restaurant equipment and supplies. Refrigeration equipment includes reach in refrigerators, refrigerated prep tables, refrigerated display cases, merchandising refrigerators, and undercounter refrigerators. Commercial work tables include stainless steel work tables, butcher block work tables, and equipment stands. Commercial sinks include 1-3 compartment sinks, underbar sinks, and faucets. Some additional offerings include various shelves and shelving, exhaust hoods, fryers and ranges, steam tables, chairs, booths, and other restaurant furniture.
High Tech Material Solutions is based in Auburn, Washington. The company is a supplier of advanced materials and a manufacturer of custom-machined ceramic components to customers globally, with local delivery and in-store pickup also available. The company primarily serves aerospace, medical, government agencies, and energy industries. The company’s services include CNC machining and custom ceramic-based materials fabrication. Additional materials the company provides include crystals, optical materials, nickel foam, and aerospace gels.
J.W. Winco was originally founded as Ganter in 1894 in Germany. Winco specializes in parts manufacturing. Parts offerings the operating parts segment including handles, adjusting, and positioning parts; clamping parts segment featuring tensioning, clamping, switching, and levers; and finally the machine parts segment with indexing, locking, mounting, connecting elements, guides, spindles, rollers, magnets, casters, and wheels. Winco’s complete catalog contains over 75,000 standard parts. Winco is also ISO 9001 certified. Winco offers free CAD downloads and technical documentation for many arts.
Mädler North America was founded in 2020 as the US-based subsidiary of Mädler which was founded in Berlin, Germany in 1882. Mädler specializes in manufacturing precision-made machine parts. Product lines include linear guides, bearings, bushes, bevel gears, worm wheels, castors and wheel systems, couplings, fastening elements, clutches, gear boxes, idlers, linear bearings, locking assemblies, machine mounts, elements for pneumatic machines various joints, rubber padding and dampers, splined shafts and hubs, sprockets, timing belts, spindles, adhesives, sealants, and other assorted accessories.
Refraction Technologies Corp. was founded in 1984 and is based in Newark, New York. The company is an ISO 9001:2015 and ITAR-certified manufacturer of ceramic-based products for industries such as aquaculture, chemical processing, pumps & valves, water treatment, and wire & cable manufacturing. The company has two product segments: Porous Ceramics and Zirconia Ceramics. Porous Ceramics includes fasteners and components based on aluminum oxide and silicon carbide. Zirconia Ceramics includes components with strong corrosion resistance, and increased strength, while weighing less than conventional materials.
General Pipe Cleaners was established in 1930 and is headquartered in McKees Rocks, Pennsylvania. The company is a manufacturer of drain-cleaning equipment and serves drain-cleaning and plumbing industries and individual customers worldwide through its distributors. The company’s product lines include Pro Drain Cleaning Tools, Water Jet Drain Cleaners, Pipe Inspection & Locators, Flexible-Shaft Drain Cleaners, and general plumbing tools. For regional customers in and around Pennsylvania, the company also offers rental drain cleaning tools.
Gorlitz Sewer & Drain, Inc, founded in 1980, is a California-based manufacturer of sewer and drain cleaning equipment. The company’s products consist of sewer and drain cleaning machines, hoses, inspection cameras, pipe location equipment, and plumbing tools. The products range from lightweight to heavy-duty and are made from corrosion-proof steel. As such, its main consumer base is service technicians in the construction and plumbing industries for use in sewer and pipe construction and repair.
Pivot Point Inc. is located in Hustisford, Wisconsin, and operated by a family that has been manufacturing non-threaded fastener solutions since 1929. The company serves industries such as agriculture, medical, outdoor power equipment, and sporting & recreation fasteners for their respective machinery. The company’s 4 primary product lines are Pins, Cotter, Rings; Lanyards, Exclusive Fastener Innovations, and Custom Solutions. Exclusive Fastener Innovations include auto-lock safety pull pin fasteners and infinity S-hooks. Custom solutions include materials and shapes custom designed to meet individual customer needs.
Hi-Standard Machining Company was established in 1946 and headquartered in Racine, Washington. The company is a manufacturer of machine parts, especially Swiss CNC 7-axis Screw and Brown & Sharpe Machine parts ISO 9001:2015 compliant factories. The company’s product lines include precision parts for the medical industry such as Swiss screw machining parts and parts for the auto industry. The company begins each custom part with CAD drawings of parts the customer needs then runs the material precisely through CNC machines. Once parts pass inspections for accuracy and quality, they are ready for shipment.
SupplyOne was founded in 1998 and is a manufacturer, distributor, and service provider for custom packaging products. SupplyOne strives to maximize use of renewable, recycled, or recyclable sources, with a current rate of 95%. SupplyOne products included corrugated material, flexible packaging, food packaging, labels, miscellaneous consumables, operating supplies, packaging equipment, packaging supplies, plastic thermoformed products, safety supplies, and shipping supplies. Service programs include the packaging management program, managed services program, food packaging program, on-site management program, as well as various other retail store services.
Diamond Needle Corp is the North American distributor for Organ Needle Co., LTD of Japan. Diamond Needle Corp is a supplier of sewing supplies and materials. Individuals and industries served include apparel, automotive, bag closing, bookbinding, embroidery, filters, furniture, home fashions, industrial textiles, mattresses, non-woven, quilting, and other special applications. Diamond Needle has over 100,000 parts and supplies available including needles, replacement parts, scissors, lubricants, chemicals for cleaning and adhesive use, specialized tools, drive belts, crayons, markers, safety aids such as gloves and needle protection, and electric busways.
Zygology is a UK-based distributor for technical fastening products. Zygology has ISO 9001 and UKAS quality management accreditation. Zygology’s product line includes breakstem rivet systems, speed fasteners, structural breakstem fasteners, earthing products, sealing plugs, nutserts, jack nuts, versanuts, POP MFX fasteners, lock bolts, installation tools, PEM assembly solutions, placing tools, Tesa tapes, self-locking nuts, and rivet nuts. Zygology offers engineering design and consulting solutions for customer production line problems. Zygology also offers tool rentals and tool repair.
Ranking as of June 2023 in United States of AmericaDerivation Method
|1||Pearl Technologies Inc.||33.3%|
|2||Valco Valley Tool & Die Inc||16.7%|
|5||Gorlitz Sewer & Drain, Inc.||16.7%|
Ranking as of June 2023 GloballyDerivation Method
|1||Pearl Technologies Inc.||33.3%|
|2||Valco Valley Tool & Die Inc||16.7%|
|5||Gorlitz Sewer & Drain, Inc.||16.7%|
Derivation MethodThe ranking is calculated based on the click share within the plunger page as of June 2023. 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.
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