EOS M 100

$250,000 - $350,000 Updated 2026-03-15

Key Specifications

build volume

Ø 100 x 95 mm (Ø 3.94 x 3.74 in)

laser type

Yb-fiber laser

laser power

200 W

number of lasers

focus diameter

~40 µm

layer thickness

20 - 50 µm (material dependent)

Overview

The EOS M 100 is a compact, entry-level metal additive manufacturing system designed for small precision parts in dental, medical, jewelry, and research applications. With a build volume of Ø 100 x 95 mm (Ø 3.94 x 3.74 in), the M 100 is the smallest production platform in the EOS metal lineup, purpose-built for applications where part size is small but accuracy and surface quality requirements are high. The system uses Direct Metal Laser Sintering (DMLS) technology with a 200 W Yb-fiber laser, delivering the same fundamental process quality that has made EOS the gold standard in metal AM.

The round build platform measures 100 mm in diameter, which is ideal for dental crowns and bridges, small medical implants, jewelry pieces, and small-batch R&D components. The 200 W laser with a focus diameter of approximately 40 microns provides excellent detail resolution — significantly finer than the M 290's 100 micron spot — making the M 100 particularly suited for intricate geometries and thin-wall features. Layer thickness ranges from 20 to 50 microns depending on material, with standard EOS parameter sets available for cobalt chrome, titanium, stainless steel, and precious metal alloys.

The M 100's compact design is a deliberate feature, not a compromise. The system occupies roughly 0.8 x 1.0 meters of floor space and operates on single-phase power, making it deployable in dental labs, university research facilities, and small production environments without the facility infrastructure required for larger metal AM systems. The integrated powder handling with nitrogen inerting simplifies operation, and the user interface is designed for operators who may not be AM specialists.

EOS provides both standard and performance parameter sets for the M 100, though the material library is smaller than the M 290's — focused on the alloys most relevant to dental, medical, and jewelry applications. The EOSPRINT build preparation software handles part orientation, support generation, and slicing, while the optional EOSTATE monitoring module provides process data for quality documentation.

New EOS M 100 systems are priced between $250,000 and $350,000, positioning them as a more accessible entry point into industrial metal AM compared to the $800K+ M 290. This puts the M 100 against the Concept Laser Mlab cusing 200R (now GE Additive), Sisma mysint100, and Trumpf TruPrint 1000 in the compact metal AM segment.

Full Specifications

Parameter	Value
Build Volume	Ø 100 x 95 mm (Ø 3.94 x 3.74 in)
Laser Type	Yb-fiber laser
Laser Power	200 W
Number Of Lasers	1
Focus Diameter	~40 µm
Layer Thickness	20 - 50 µm (material dependent)
Scan Speed	Up to 7.0 m/s
Technology	Direct Metal Laser Sintering (DMLS)
Materials	Cobalt Chrome, Titanium, Stainless Steel, Precious metals
Inert Gas	Nitrogen
Power Supply	Single-phase, 230V
Power Consumption Max	2.4 kW
Machine Dimensions	800 x 950 x 2,250 mm (31.5 x 37.4 x 88.6 in)
Software	EOSPRINT, EOSTATE monitoring (optional)
CNC Control	EOS proprietary

Strengths & Limitations

Strengths

40 µm focus diameter delivers finer detail resolution than larger EOS platforms, ideal for intricate dental, jewelry, and micro-medical components
Compact footprint of 0.8 x 1.0 m with single-phase power makes deployment possible in dental labs and university facilities without major infrastructure
EOS DMLS process quality and parameter development carried over from the M 290 platform ensures industrial-grade part quality
Lower entry price of $250K-$350K provides a more accessible pathway to industrial metal AM versus the $800K+ M 290
Nitrogen inerting and integrated powder handling simplify operation for non-specialist operators in dental and jewelry environments
EOSPRINT software ecosystem and optional EOSTATE monitoring provide the same digital workflow as larger EOS platforms

Limitations

Ø 100 x 95 mm build volume severely limits part size — even medium-sized medical implants may not fit the platform
200 W single laser with small build area means limited throughput — not suitable for volume production applications
Smaller material library compared to the M 290 — fewer qualified parameter sets available, especially for aluminum and nickel alloys
At $250K-$350K, the M 100 is still a significant investment for dental labs and small shops that may find outsourced AM services more cost-effective
Round build plate is less efficient for rectangular part arrays compared to the square platforms offered by competitors

Best For

Dental labs producing crowns, bridges, partial dentures, and custom abutments in cobalt chrome and titanium Jewelry manufacturers creating custom rings, pendants, and settings in precious metal alloys with intricate detail Medical device companies prototyping small implants and surgical instruments before committing to larger AM platforms University and research institutions developing metal AM processes with limited budgets and facility constraints Small-batch precision component manufacturers needing in-house metal AM for parts under 100mm in any dimension

Frequently Asked Questions

01 How does the EOS M 100 compare to the EOS M 290?

The M 100 is designed for small precision parts while the M 290 is a mid-frame production platform. The M 100 has a smaller build volume (Ø 100 x 95 mm vs 250 x 250 x 325 mm), lower laser power (200 W vs 400 W), but finer focus diameter (40 µm vs 100 µm). The M 100 costs roughly a third of the M 290 and runs on single-phase power. Choose the M 100 for small dental/jewelry/medical parts; choose the M 290 for production volumes and larger components.

02 What dental applications is the EOS M 100 used for?

The M 100 is widely used for dental crowns, bridges, partial denture frameworks, custom abutments, and surgical guides in cobalt chrome and titanium. The 40 µm spot size provides the detail resolution needed for accurate dental margins and occlusal surfaces. A typical build can produce 20-40 dental units depending on geometry, making it viable for medium-volume dental labs that currently outsource metal printing.

03 What facility requirements does the EOS M 100 need?

The M 100 has minimal facility requirements compared to larger metal AM systems. It runs on single-phase 230V power (max 2.4 kW), requires a nitrogen gas supply (either bottled or generator), and needs standard ventilation for powder handling. The compact footprint of 0.8 x 1.0 m means it fits in most lab or workshop environments. No special foundation or 3-phase electrical service is required.

04 Can the EOS M 100 print titanium?

Yes, EOS offers qualified parameters for Ti6Al4V on the M 100 platform. Titanium printing requires an inert nitrogen atmosphere (provided by the M 100's standard inerting system) and proper powder handling procedures due to titanium's reactivity. The M 100 is used for small titanium medical implants, dental components, and research specimens. Reactive powder handling training is recommended for operators.

05 What is the operating cost of the EOS M 100?

Operating costs include metal powder ($50-$400/kg depending on alloy), nitrogen gas ($200-$500/month), filter replacements, build platform reconditioning, and annual maintenance contracts ($20,000-$35,000/year). Power consumption is minimal at 2.4 kW max. For a dental lab running 1-2 builds per day in cobalt chrome, total operating costs typically run $3,000-$6,000 per month excluding powder, which varies with consumption.

06 How does the M 100 compare to the Concept Laser Mlab?

The Concept Laser Mlab (now GE Additive) is the most direct competitor to the M 100. Both target dental, jewelry, and small medical applications with similar build volumes. The M 100 benefits from EOS's broader ecosystem, EOSPRINT software, and global service network. The Mlab offers a slightly different parameter development approach through GE Additive. Pricing is comparable. The choice often depends on existing relationships with EOS or GE Additive and local service availability.