What Seyi does

SEYI (Shieh Yih Machinery Industry Co., Ltd.) is a Taiwanese publicly listed manufacturer founded in 1962 that designs and produces industrial servo and mechanical stamping presses for global metal-forming customers. Its product portfolio spans 14+ press series — five servo lines (SDG, SDE, SD, SDN1, SDM1) and nine mechanical lines (SAG, SE, SLG, SEL, SNS, SLS, SN, SM1, SM2) — covering tonnages from sub-100 to 2,400 tons, and supporting tandem press lines, transfer systems, blanking, progressive die, heavy stamping, and hot stamping applications.

The company's underlying technology centers on a proprietary servo control system with programmable slide motion (7 default motion profiles plus custom), pendulum/pendulum-curve drive technologies delivering 50%+ energy savings, 8-point guided slide designs for precision, and an IoT-enabled Smart Stamping Solution add-on that collects machine telemetry (tonnage, die protection, motor status, lubrication, power) and supports remote diagnostics and OEE/yield reporting. SEYI runs a direct enterprise sales motion with global sales and service offices in Taiwan (HQ and manufacturing), China, the United States, Japan, Thailand, Indonesia, and Mexico (Bajío Operations, launched 2026-03-20), monetizing through quote-based hardware sales of custom-configured presses, multi-year after-sales service contracts (preventative maintenance, overhauls, modernization upgrades), and increasingly through IoT/smart-manufacturing subscriptions. Its primary customer segment is automotive OEMs and Tier-1 suppliers (notably for AHSS hot stamping of body panels and structural components), with secondary verticals in consumer electronics and appliances, medical equipment, aerospace, and transportation components.

Name

Seyi

Legal name

SHIEH YIH MACHINERY INDUSTRY CO., LTD. (HEADQUARTERS)

Website

https://seyi.com

Company type

Public

Founded year

1962

Operating status

Operating

Headcount range

501–1,000 employees

Short description

SEYI (Shieh Yih Machinery Industry Co., Ltd.) is a Taiwanese publicly listed manufacturer of servo and mechanical metal-stamping presses serving automotive Tier-1 suppliers, appliance, electronics, medical, and aerospace manufacturers globally via direct enterprise sales and a worldwide service network.

Ownership category

akta.pro rank

Product category

Industrial Metal Stamping Press Machinery

NAICS

Rolling Mill and Other Metalworking Machinery Manufacturing (333519)

SIC

Metalworkg Machinery & Equipment (3540), Special Industry Machinery, Nec (3559)

akta.pro primary industry

Metal Forming & Fabrication Machines (Presses, Bending, Shearing, Stamping) (IMAHADAC)

Keywords

• Servo press manufacturing
• Mechanical press machinery
• Metal stamping equipment
• Hot stamping presses
• Industrial press machinery

Headquarters

HQ city

Tullahoma

HQ country

United States

HQ region

North America

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Industrial Press Equipment Sales: Manufacture and sale of servo presses and mechanical presses including SDG, SDE, SD, SDN1, SDM1, SAG, SE, SLG, SEL, SNS, SLS, SN, SM1, and SM2 series. Revenue generated from direct equipment sales to manufacturers in automotive, appliance, electronics, medical, and aerospace industries.
2. After-Sales Service and Maintenance: Comprehensive service offerings including preventative maintenance, overseas maintenance, annual inspection, fault inspection with internet remote access, drive system maintenance, clutch system maintenance, and machine precision adjustment.
3. Overhaul and Modernization Services: Old machine overhaul services including framework adjustment, spray-paint, complete machine renewal, electronic control system upgrades, and operating interface modernization.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

SEYI manufactures and sells industrial metal stamping presses — both servo presses (SDG, SDE, SD, SDN1, SDM1 series) and mechanical presses (SAG, SE, SLG, SEL, SNS, SLS, SN, SM1, SM2 series) — in tonnages from small C-frame units up to 2,400-ton large straight-side machines for automotive, appliance, electronics, medical, and aerospace manufacturers. The company complements equipment sales with after-sales service (preventative maintenance, annual inspection, remote diagnostics) and overhaul/modernization programs, and offers an optional Smart Stamping Solution that adds industrial IoT-based monitoring, OEE and yield reporting, and remote diagnosis to installed press lines.

Product overview

SEYI (Shieh Yih Machinery Industry Co., Ltd.) is a manufacturer of servo and mechanical stamping presses, organized into two main product lines: servo presses (SDG, SDE, SD, SDN1, SDM1 series) and mechanical presses (SAG, SE, SLG, SEL, SNS, SLS, SN, SM1, SM2 series). The servo press line features programmable slide motion controlled by proprietary servo motors and control systems, offering energy savings of 50%+ with pendulum motion capability, while the mechanical press line includes traditional crank and link-motion designs for various stamping applications. All presses support industrial automation integration for tandem press lines, transfer systems, blanking lines, progressive die, and hot stamping. An optional Smart Stamping Solution adds IoT connectivity and monitoring capabilities to the press portfolio.

Differentiator

Problem solved

Functional benefit

Products and services

• Straight Side Crank Servo Press (SDG Series) High-performance servo press with direct drive transmission for drawing, forming, blanking, punching and cutting of automotive parts. Features programmable slide motion, tie-rod structure for minimal deflection, and pendulum curve capability that doubles productivity while saving more than 50% energy. Models: SDG2-400~1200 / SDG4-400~2400.
• Straight Side Eccentric Gear Servo Press (SDE Series) Eccentric gear drive servo press optimized for deep drawing and high-speed tandem line applications. Features 8-point guided slide for high precision and excellent performance in hot stamping, progressive die, and transfer applications. Models: SDE2-400~1200 / SDE4-400~2400.
• Solid Frame Crank Servo Press (SD Series) Compact servo press with intersected parallel framework and 8-point guided slide for precision applications in auto parts, consumer electronics, and household appliances. Features exclusive servo motor with low speed high torque, energy conservation, and pendulum motion saving 50% energy. Models: SD1-80~300 / SD2-160~500.
• C Frame Direct-Drive Servo Press (SDN1 Series) Compact servo press equipped with new-generation direct-drive servo motor for cutting, blanking, and drawing applications. Features energy-saving design with power regeneration capacitors, low operational noise, and easy integration with stand-alone or tandem line configurations. Models: SDN1-80~250.
• Heavy Stamping Servo Press (SDM1 Series) High-efficiency heavy stamping servo press for forming thick metal plates over 6mm. Features 8-sided guide design for high slide stability and flexible programmable slide motion for bending, drawing, and piercing applications. Suitable for automobiles, motorcycles, ICT products, aerospace, and medical equipment. Models: SDM1-500~800.
• Straight Side Crank Press (SAG Series) Mechanical press workhorse for medium to large operations using automatic feed, progressive die, and transfer systems. Features tie rod frame with excellent rigidity, wide-spaced connecting rods for stability with various dies, and 99% integration rate with ancillary equipment. Models: SAG2-300~1200 / SAG4-400~1200.
• Straight Side Eccentric Gear Press (SE Series) Mechanical press with eccentric gear drive and 8-point guided slide for high precision in processing high-tensile steel panels. Features tie-rod structure for minimal deflection, energy-saving design saving 20% more energy, and excellent performance in deep drawing applications. Models: SE2-400~1200 / SE4-400~2400.
• Straight Side Crank Link-Motion Press (SLG Series) Mechanical press for large parts forming in automotive applications. Features gear driving component with four connecting rods, soft contact during forming that reduces vibration, noise and heat, and extends die lifetime. Low energy consumption design saves 20% more energy. Models: SLG2-300~1200 / SLG4-400~1200.
• Straight Side Eccentric Gear Link-Motion Press (SEL Series) Press equipment for forming large automotive parts with eccentric gear and connecting rods drive component. Features piston guide pillar for precise and stable movement, soft contact at constant speed during forming, and 20% energy savings. Models: SEL2-400~1200 / SEL4-400~2400.
• Solid Frame Crank Press (SNS Series) Mechanical press for blanking, punching, bending and forming on small single work of thin steel plate and progressive die parts. Features unitized straight side frame with no angular deflection, good for precision or progressive dies, and easy linking with ancillary automation equipment for mass production. Models: SNS1-80~300 / SNS2-160~500.
• Solid Frame Link-Motion Press (SLS Series) Mechanical press with link-motion for blanking, punching, bending and forming applications. Features unitized straight side frame design with good precision and longer die life for progressive die applications. Models: SLS1-80~300 / SLS2-160~500.
• C Frame Crank Press (SN Series) Mechanical press for blanking, punching, bending and forming on small single work of thin steel plate and progressive die parts. Features high torque low noise wet clutch and brake, rigid frame with less deflection, and forced lubrication system with default monitor. Models: SN1-25~250 / SN2-110~300.
• Heavy Stamping Link-Motion Press (SM1 Series) Mechanical press for blanking, punching, bending and forming on parts over 6mm thick plate stamping. Features link motion with reduced touch speed, less vibration and noise, extended tooling life, and up to 40% productivity increase compared to conventional presses. Models: SM1-300~800.
• Progressive Stamping Link-Motion Press (SM2 Series) Mechanical press for blanking, punching, bending and forming on small size but large quantity parts from progressive die pressing. Features high precision and rigidity structural design, low forming speed, and unique dynamic balance system. Models: SM2-200~600.
• Smart Stamping Solution Industrial IoT-based solution enabling smart production and management for stamping operations. Features central control system via IoT connectivity for real-time data collection on press conditions, tonnage monitoring, die protection, motor status, temperature, lubrication, and power consumption. Includes remote diagnosis, OEE and yield rate reports for production optimization.
• After-Sales Service and Maintenance Comprehensive after-sales service offering for SEYI press owners including preventative maintenance, overseas maintenance visits, annual inspection, fault inspection with internet remote access, drive system maintenance, clutch system maintenance, and machine precision adjustment.
• Overhaul and Modernization Services Old machine overhaul and modernization services for SEYI and third-party presses including framework adjustment, spray-paint, complete machine renewal, electronic control system upgrades, and operating interface modernization.

Quantifiable outcome

• Hot stamping productivity increases from 5 to 7.5 parts/min compared to hydraulic presses, generating $842,400 additional profit/year per press line
• +4 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Two partnerships are on record, tiered regional and core.

• Bajío Operations (Mexico)regionalOthers · 20 March 2026Launch of Bajío Operations in Mexico to strengthen SEYI's global service network, providing localized support and service capabilities in the Mexican manufacturing region.
• Metal Industry Research & Development CentercoreStrategic or Co-development PartnerCollaboration for cloud platform services providing virtual tool & die testing, tool & die development database, and online tool & die diagnosis. This partnership supports SEYI's Smart Stamping Solution at the Traditional Industry Innovation and Value-added Center in Taiwan, demonstrating an advanced manufacturing demo site.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Stamtec: U.S. press manufacturer (part of CHD Group) producing mechanical and hydraulic presses for metal stamping. Comparable as a regional competitor serving North American Tier-1 and contract stamping customers.
• Macrodyne Technologies: North American manufacturer of hydraulic and servo presses for automotive, aerospace, and appliance industries. Comparable as a direct competitor in mid-to-large tonnage presses with similar IoT/smart manufacturing positioning.
• Aida Engineering: Japanese manufacturer of servo presses and mechanical presses widely used in automotive and electronics stamping. Directly comparable because it offers a parallel product portfolio (crank, link-motion, servo presses) targeting overlapping automotive and electronics customers, with deep Japanese OEM relationships.
• Chin Fong Machine Industrial: Taiwanese press manufacturer producing mechanical and servo presses for automotive, appliance, and electronics stamping. Closely comparable as a Taiwan-based direct competitor serving overlapping export markets and customer types, often competing head-to-head in Southeast Asia and North America.

Broad incumbents

• Japan Steel Works: Major Japanese industrial machinery manufacturer producing large-tonnage presses and forging equipment for automotive and aerospace applications. Comparable in the heavy-tonnage stamping and hot forming segment, particularly for AHSS structural components.
• Schuler Group: German global leader in metal forming and press manufacturing with a broad portfolio spanning servo presses, mechanical presses, transfer lines, and complete press shops. Comparable because it serves the same automotive Tier-1/OEM customers for body panel and AHSS stamping, but at significantly greater scale and global installed base.
• SMS group (metal forming): German plant engineering group with metal forming equipment portfolio including presses for automotive and aerospace applications. Comparable as a large European incumbent offering integrated press and automation solutions.
• Komatsu Industries: Subsidiary of Komatsu Ltd. producing large-tonnage mechanical and servo presses, press automation systems, and metalworking machinery. Comparable as a competing supplier to automotive and heavy-industry customers, with broader corporate resources and global service network.

Others

• Beckhoff Automation: German automation and control systems provider commonly integrated into press lines and smart manufacturing cells. Comparable as an enabling technology partner whose control platforms compete with or complement SEYI's Smart Stamping IoT solution.

Regional players

• Danly IEM (Danly/Kenmode): North American manufacturer of metal stamping presses and die sets with long history in the U.S. market. Comparable in mid-tonnage mechanical and servo press offerings primarily serving North American automotive and appliance stampers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/seyi_europe

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 Seyi