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Most of our inventory sells before we can list it online. If you need a specific brand, model, or specification, tell us what you need—we have access to unlisted equipment and machines coming in from plant closures.
Looking to Sell Your HPM?
Meadoworks is an active cash buyer of used industrial equipment. Get a free valuation from our AMEA-certified appraisers.
About HPM
HPM was incorporated in 1877 as the Hydraulic Press Manufacturing Company in Mount Gilead, Ohio, founded by Augustus Q. Tucker, an apple orchard owner and mechanical engineering student who built a hydraulic press for extracting cider. The company moved into metal forming presses in the early 1900s, developing its own pumps and valves, and in 1931 built what is generally credited as the first American-made injection molding machine. HPM held numerous patents in plastics processing, including the double and triple wave screw designs.
The ownership chain matters for anyone tracing parts and documentation. HPM merged with the Koehring Company of Milwaukee in 1956 and operated as the HPM Division of Koehring, staying in Mount Gilead. Koehring added the Cast-Master die casting line in 1959 and merged in the Prodex extrusion division in 1971, giving HPM its three-way product base of injection molding, extrusion, and die casting. In 1976 Koehring sold the division to a group of employees and local investors, and it was renamed HPM Corporation. HPM acquired New Britain, a Connecticut toggle injection molding machine builder, in 1983 and moved that production to Mount Gilead in 1986. Stadco acquired HPM in 1996 under an HPM-Stadco holding company, and Taylor's Industrial Services LLC purchased it in 2001, operating it as Taylor's Industrial Services, HPM Division.
The Mount Gilead plant closed at the end of December 2009, with HPM announcing on January 4, 2010 that operations there were suspended; the plastics and die casting operation did not reopen, and the historic plant was demolished beginning in December 2020. On March 29, 2011, Guangdong Yizumi Precision Machinery of China acquired all HPM intellectual property and established HPM North America Corporation in Marion, Ohio, renamed Yizumi-HPM Corporation in 2017 and now based in Iberia, Ohio. Yizumi-HPM builds injection molding machines from roughly 60 to 3,500 tons and hot and cold chamber die casting machines from 200 to 4,500 tons on designs derived from HPM originals.
For used-equipment buyers the practical picture is favorable. The installed base is enormous - HPM presses remain in productive service across automotive, appliance, industrial container, and structural foam applications - which keeps acquisition prices low relative to capability. Popular lines include the TFR series two-platen large-tonnage hydraulic presses, the Vector toggle line, the MK series mid-range hydraulic toggles, the Pacer series, and horizontal and vertical hydraulic presses from 50 to over 4,000 tons, plus large structural foam presses still common in pallet, refuse container, and large enclosure production. Because the IP now sits with Yizumi-HPM, there is a documented parts path for legacy machines, and independent specialists have supported the brand since the closure - Epco LLC began marketing HPM parts, service, and remanufacturing to owners within weeks of the plant shutting. Inspect hydraulic system condition first, including pump and valve wear and reservoir contamination, then screw and barrel wear, tie-bar and platen wear on TFR two-platen machines, and control system status, since many of these machines have been retrofitted with newer PLCs and HMIs.
Meadoworks is your trusted source for used HPM equipment. As third-generation industrial equipment dealers and AMEA-certified appraisers with over 50 years of experience, we offer quality-inspected HPM machines at competitive prices. Browse the 1 used HPM machine listed above, or call 800-323-0307 for equipment not yet listed.
Every machine includes detailed specifications and high-resolution photos, and inspection visits are available for most equipment. We ship worldwide with experienced rigging partners and offer financing for qualified buyers. Have HPM equipment to sell? Get a free valuation or contact our team.
HPM Equipment by Category
Frequently Asked Questions
What did HPM make?
HPM Corporation manufactured injection molding machines (TFR two-platen, Vector toggle, MK hydraulic toggle, Pacer, and standard hydraulic series from 50 to 4,000+ tons), structural foam molding presses, reaction injection molding (RIM) machines, and general industrial hydraulic presses from its Mount Gilead, Ohio plant from 1877 until manufacturing ceased in 2008.
Is HPM still in business?
HPM Corporation ceased manufacturing in 2008, but the brand's massive installed base across U.S. molding plants is still in heavy productive use. Aftermarket parts, service, control retrofits, and rebuilds are supported by several specialist firms - including former HPM engineers and technicians - that focus exclusively on the HPM installed base.
Why buy a used HPM injection molding machine?
Used HPM machines are extremely affordable because of the very large installed base, and they remain practical workhorses for many molding applications - especially structural foam, large-part hydraulic, and two-platen TFR work - where the rugged construction continues to deliver decades of service. Many shops retrofit modern PLCs/HMIs to extend useful life by another 10-20 years.
What should I inspect on a used HPM machine?
Inspect the hydraulic system carefully (pumps, valves, cylinder seals, reservoir contamination, oil analysis), screw and barrel wear, tie-bar and platen wear (especially on TFR two-platen machines), control system status (original HPM controls vs. retrofit PLC/HMI), heater bands and thermocouples, and overall frame and sheet-metal condition.
What are the most popular HPM models on the used market?
Common used HPM models include the TFR two-platen large-tonnage hydraulic presses (popular in automotive bumper, large appliance, and industrial pallet molding), the Vector toggle line, the MK hydraulic toggle series, the Pacer series, vertical hydraulic presses for insert molding, and large structural foam presses for industrial pallets and totes.
Related Resources
Recently Sold HPM Equipment
A sample of machines we've recently sold. Looking for one like these? Tell us what you need — we source equipment from plant closings and surplus operations daily.
2003 HPM Freedom 3500-1100
Item No. 4001
🇺🇸 USAYear 2003
3500 Tons

2003 HPM Freedom 2750
Item No. 4070
🇺🇸 USAYear 2003
2750 Tons

2000 HPM 2.5 Prodex II 30.1
Item No. 3194
🇺🇸 USAYear 2000

2000 HPM GP+450
Item No. 4124
🇺🇸 USAYear 2000
495 Tons

2000 HPM GP+750
Item No. 4806
🇺🇸 USAYear 2000
825 Tons

2000 HPM GP+750
Item No. 4805
🇺🇸 USAYear 2000
825 Tons
Popular HPM Models
Looking for one of these models? Call 800-323-0307 — we often have unlisted HPM machines coming in from plant closures.
HPM Specialties
Looking for Specific HPM Equipment?
Can't find what you need? Contact our team with your requirements. We source equipment from plant closures and facilities across North America and can often locate specific machines.
