Lehmann Mills

What Lehmann Mills does

Lehmann Mills is a privately held U.S. manufacturer of three, four, and five roll mills used for particle size reduction, homogenizing, blending, dispersing, shearing, refining, de-aerating, and mixing of viscous materials. Founded over a century ago and headquartered in Salem, Ohio, the company has produced more than 5,000 roller mills cumulatively and serves industrial customers across printing inks and coatings, pharmaceuticals and healthcare, chemicals and specialty materials, food and confectionery (notably chocolate and cocoa liquor processing), cosmetics and personal care, electronics and advanced materials, and arts and crafts. The product line spans horizontal, vertical, and inclined three roll mills (including the advanced Model 7312KVH), laboratory and bench-top mills, a specialized Triple Cocoa Liquor Mill, and accessories such as can tilters and knife blade dispensers.

The company operates a vertically integrated manufacturing model with in-house machining, assembly, testing, and CAD-engineered control packaging, complemented by an aftermarket service center that handles repair, reconditioning, modernization, spare parts, and ANSI B65/NAPIM177.1-2007 safety upgrades for any brand of roller mill, not only its own. Revenue is generated through hardware sales (new mills, reconditioned used mills from Lehmann, Day, Troy, and Kent brands, spare parts, knife blades, accessories) and professional services (repair, rebuild, reconditioning, custom PLC/electronic control upgrades, hydraulic and digital control retrofits). Go-to-market is direct enterprise field sales with consultation, free quotations, and on-site material testing at the Salem facility; pricing is not publicly disclosed. Distribution is direct-to-customer globally, with no resellers or distributors identified, and the firm positions its Salem site as an international service center supporting global customers.

Name

Lehmann Mills

Legal name

Lehmann Mills

Website

https://lehmannmills.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Lehmann Mills is a privately held Salem, Ohio-based manufacturer of three, four, and five roll mills for particle size reduction and dispersion, serving industrial buyers across inks, pharmaceuticals, chemicals, food, cosmetics, and electronics, with direct sales, reconditioned equipment, and full-service repair operations.

Ownership category

akta.pro rank

Headquarters

HQ city

Salem

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Technology or R&D

Revenue model

1. New Mill Sales: Sales of new Lehmann roller mills including three-roll, four-roll, five-roll horizontal and vertical mills, laboratory mills, and triple cocoa liquor mills. Equipment ranges from benchtop lab mills to heavy production mills.
2. Reconditioned/Used Mill Sales: Sales of rebuilt and reconditioned mills including Lehmann, Day, Troy, and Kent brands in both laboratory and full production sizes. Equipment includes ANSI safety upgrades.
3. Repair & Rebuild Services: Complete mill repairs for any brand/model roller mill, including tear-down, parts replacement, roll crown grinding, gear inspection, bearing replacement, cooling/lubrication system service.
4. Reconditioning & Modernizing: Comprehensive restoration of roller mills to like-new condition including complete teardown, chemical/mechanical cleaning, roll grinding, gear recutting, bearing replacement, motor and control renovation.
5. Custom Upgrades & Control Packages: Custom-designed PLC/electronic control packages, digital control systems, hydraulic upgrades, safety upgrades per ANSI standards, and anti-backlash motorized roll adjustments.
6. Spare Parts & Components: Spare parts for all mill brands, knife blades, coil stock, roll exchange programs, replacement stones for triple mill stones.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Lehmann Mills manufactures and services three, four, and five roll mills used for particle size reduction, homogenizing, blending, dispersing, shearing, refining, de-aerating, and mixing across industrial manufacturers. The company sells new equipment (horizontal, vertical, inclined, and laboratory mills, plus Triple Cocoa Liquor Mills), reconditioned used mills from multiple brands, spare parts such as knife blades, and offers full repair, reconditioning, custom PLC/electronic control upgrades, and ANSI safety retrofits. It operates an international service center supporting any make or model of roller mill.

Product overview

Lehmann Mills is a manufacturer of quality dispersion mills and precision rolls, offering a comprehensive portfolio of three, four, and five roll mills. The core product line includes Three Roll Horizontal Mills (583-AH, 613-BH, 661-V, 662-V, 663-V, 1-A, 2-A, 3-A), Three Roll Vertical Mills (631-V, 632-V), the advanced Model 7312KVH Three Roll Mill with enhanced production capabilities, and the Model 731SV Three Roll Inclined Mill. Supporting the production mills are Laboratory Mills (655-V, 5-B, 6-B), Model 8A Bench Top Mill, and Electric Heated Laboratory Mills for testing and small-batch work. Additional equipment includes Triple Cocoa Liquor Mills (producing up to 1,600 lbs/hour), Mill Platforms, Can Tilters (standard and Economy CTE series), and Knife Blades & Dispensers. The company also offers Reconditioned Used Mills from Lehmann, Day, Troy, and Kent brands. Value-added services include PLC/Electronic Control Packages, Digital Load Cell and Temperature Control upgrades, Electro-Hydraulic 4-Point Control, Anti-Backlash Motorized Roll Adjustments, Repair & Rebuild Services, Reconditioning, and ANSI Safety Upgrades. Lehmann positions itself as a one-stop solution for new equipment, parts, and comprehensive service for any brand of roller mill.

Differentiator

Problem solved

Functional benefit

Products and services

• Three Roll Horizontal Mills (Models 583-AH, 613-BH, 661-V, 662-V, 663-V, 1-A, 2-A, 3-A) Heavy-duty horizontal-configuration three roll mills for production environments requiring particle size reduction, homogenizing, blending, dispersing, shearing, refining, de-aerating, and mixing of inks, paints, coatings, chemicals, pharmaceuticals, cosmetics, and food products. Available with electro-hydraulic, sight-o-matic, or manual control options.
• Three Roll Vertical Mills (Models 631-V, 632-V) Vertical-configuration three roll mills with two-speed motors and enclosed v-belt drive, designed for space-efficient production installations across the same applications as horizontal mills.
• Model 7312KVH Three Roll Mill Advanced three roll production mill with improved temperature and roll pressure control, faster roll RPM, 42-inch working face, and increased feed hopper capacity, delivering 23% to over 100% production increase versus standard 16x40 mills for high-throughput industrial dispersion applications.
• Model 731SV Three Roll Inclined Mill Inclined-configuration three roll mill with 16x40 centrifugally cast dual metal alloy rolls, 75/56 HP two-speed motor, automatic roll temperature control, and stainless steel discharge apron and feed hopper, optimized for soap and similar high-viscosity production.
• Laboratory Mills (Models 655-V, 5-B, 6-B) Compact production-scale laboratory mills in 5x11 and 4x8 roll sizes with sight-o-matic or manual controls, variable speed motors, and positive roll temperature control for R&D testing and small-batch production of inks, coatings, pharmaceuticals, cosmetics, food, and specialty chemicals.
• Model 8A Bench Top Mill Portable bench-top laboratory mill with 2.5 x 5 stainless steel water-cooled rolls, all-aluminum frame, variable speed with braking, 3/4 HP DC motor, and 115-volt operation weighing approximately 180 lbs, suited for small-batch formulation and quality testing.
• Electric Heated Laboratory Mills (3 x 8) Electrically heated two-roll laboratory mill with fabricated welded steel base, graphite bushings rated to 750 deg F, hardened alloy steel chrome-plated rolls, cartridge heating elements, individual pyromatic controllers, and 0-45 RPM variable roll speeds for high-temperature material testing.
• Triple Cocoa Liquor Mill Three-stage grinding mill for cocoa liquor production with 48-inch diameter top and bottom stones, water cooling troughs for temperature control, and pneumatic controls for precise grinding pressures. Produces up to 1,600 lbs per hour of fine-finished cocoa liquor, weighs approximately 20,000 lbs, and operates virtually vibration-free.
• Can Tilters (CT-A, CT-B, CT-C Series) and Lehmann Economy Can Tilters (CTE Series) Feeding accessories that tilt cans or drums for easy loading onto three roll mills, available with double or single handwheel extension. Standard CT-A, CT-B, CT-C models handle 1,200 to 4,000 lbs capacity; the Economy CTE series uses worm/worm gear combination with ratchet and pawl controls for 20-30% savings, available for 13x32 three roll mills up to 1,600 lbs capacity.
• Knife Blades & Dispensers Pre-cut knife blades and coil stock available for any size and brand of three roll mill, with most orders shipped same day. The Lehmann knife blade dispenser allows customers to cut blades to suit their milling needs, safely holds blade stock coils, and can be wall or table mounted.
• Reconditioned Used Mills (Lehmann, Day, Troy, Kent and other brands) In-stock inventory of quality reconditioned used mills from Lehmann, Day, Troy, Kent, and other popular brands in both laboratory and full production sizes. All equipment includes ANSI safety upgrades in the price. Inventory spans horizontal, vertical, hydraulic, and lab mills from 4x8 to 16x40 working faces, with roll exchange programs available for most models.
• PLC/Electronic Control Packages Custom-designed PLC and electronic control packages engineered in-house via CAD, featuring automatic roll and knife pressure control, automatic temperature control, hopper level control, data collection monitoring, and HMI software with 10 programmable product programs for new and existing mills.
• Digital Load Cell Readouts Accurate digital load cell read-outs combined with manual roll adjustment simplicity, eliminating the need to rely on sight or feel to achieve optimal mill capability on existing roller mills.
• Digital Temperature Control Packages Individual roll temperature control systems with Nema 4X control panel, thermal couples, water valves, and a smart self-tuning feature that automatically adjusts controller response to process changes for precise thermal management of roller mills.

Quantifiable outcome

• 23% to 100%+ production increase with Model 7312KVH compared to standard mills
• +3 more outcomes

Segments7 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators6 records

Recent moves1 record

Expansion highlights5 records

Direct peers

• Morehouse-COWLES: US manufacturer of dispersion and mixing equipment with three roll mills, bead mills, and other processing equipment in portfolio. Direct competitor with similar focus on particle size reduction applications.
• J.H. Day Company / Littleford Day: Historical American manufacturer of three roll mills and dispersion equipment now part of the Littleford Day group. Direct competitor in roller mill manufacturing for inks, paints, and chemical applications; Lehmann explicitly services Day brand mills in its reconditioning business.
• Charles Ross & Son Company: Major US manufacturer of industrial mixing, blending, and dispersion equipment including three roll mills. Direct competitor serving overlapping customer base in particle size reduction for inks, paints, pharmaceuticals, cosmetics, and chemicals.
• Hockmeyer Equipment Corporation: US manufacturer of wet grinding, milling, and dispersion equipment including three roll mills, basket mills, and high-viscosity mixers. Direct competitor with overlapping product lines serving similar end markets.
• Union Process: US manufacturer of grinding and dispersion equipment including attritor grinding mills and related processing equipment. Direct competitor for fine particle size reduction applications in similar end markets.
• Premier Mill (SPX Flow): Industrial grinding and dispersion equipment brand within SPX Flow, producing three roll mills and other processing equipment. Direct competitor in roller mill technology for similar end-use applications.

Broad incumbents

• IKA Works: German-based global manufacturer of mixing, stirring, and dispersing equipment with broad industrial and laboratory product portfolio. Adjacent competitor in dispersion equipment markets with strong brand recognition.
• Netzsch Grinding & Dispersing: Global leader in wet grinding and dispersion equipment with broader portfolio including bead mills, agitator bead mills, and homogenizers. Competes in same end markets with newer, higher-throughput technologies.
• Bühler Group: Swiss global food processing equipment leader with strong presence in chocolate and cocoa processing machinery. Direct competitor to Lehmann's Triple Cocoa Liquor Mill in food/confectionery applications, with broader global scale.
• CB Mills (Illinois Tool Works): Subsidiary of Illinois Tool Works manufacturing grinding media mills and dispersion equipment. Competes in particle size reduction applications with broader corporate backing and resources.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/lehmann-mills-inc

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Lehmann Mills