Made to order

ELTRA TGA Thermostep Thermogravimetric Analyzer – Moisture, Ash & Volatiles | 19 Samples, 1000 °C

With every system

Installation & training gas & exhaust connection and operator onboarding
Method + validation an SOP validated against your standard

Thermogravimetric Analyzers, Analysis equipment, Elemental Analyzers

ELTRA TGA Thermostep Thermogravimetric Analyzer – Moisture, Ash & Volatiles | 19 Samples, 1000 °C

Automated thermogravimetric analyzer that combines a programmable furnace with an integrated balance — measures moisture, ash and volatiles in up to 19 samples per run, 50–1,000 °C.

✔ 19 samples + 1 reference · 500 mg–5 g · moisture/ash/volatiles in one run
✔ Ceramic furnace 50–1,000 °C · N₂/O₂/air per stage · crucible-lid handling
✔ Encapsulated balance 0.1 mg · ASTM D 7582 compliant
✔ Lead time: configured to order — request current timeline

Prices follow supplier cost and stock availability and are updated regularly. The price you see is today's price — once you order, it's held for 7 days.

Install + training included Tailored service plan

19+1 samples per run

50–1000 °C furnace

0.1 mg balance resolution

ASTM D 7582 compliant

Built for QC and analysis labs

What your QC lab actually checks

Moisture, ash & volatiles in one run

A programmable ceramic furnace (50–1,000 °C) tied to an encapsulated balance measures moisture, ash and volatiles on up to 19 samples plus a reference in a single automated cycle. Automatic crucible-lid handling and selectable N₂/O₂/air make it ASTM D 7582-compliant for coal and ideal for LOI and ash across many materials.

An applications engineer on the line

SOP setup, standard validation and throughput-workflow development from engineers who run materials characterization in-house. Sub-4h reply, NDA standard.

19+1

Samples/run

50–1000 °C

Furnace

0.1 mg

Balance res.

N₂/O₂/air

Atmospheres

ASTM D 7582

Standard

About this product

The ELTRA TGA Thermostep is a thermogravimetric analyzer that combines a programmable furnace with an integrated balance, so heating and weighing happen in one instrument. It measures moisture, ash and volatiles in a single automated run, on up to 19 samples plus a reference, at temperatures freely defined from 50 to 1,000 °C — an efficient, high-throughput alternative to laboratory ovens and muffle furnaces.

Why QC labs choose the TGA Thermostep

Automated moisture, ash and volatiles — many samples, one run, one SOP.

19 samples in one run

A carousel processes up to 19 samples plus a reference (500 mg–5 g each). Weigh in place or load a pre-weighed carousel — high throughput without manual oven-and-balance cycling.

Moisture, ash & volatiles together

A programmable ceramic furnace (50–1,000 °C in 1 °C steps) with automatic crucible-lid handling determines all three parameters in one cycle — ASTM D 7582 compliant for coal.

Selectable atmospheres

Choose nitrogen, oxygen or ambient air at each stage of the analysis, so you can gently oxidize or protect the sample exactly when the method requires it.

Precise, stable weighing

An encapsulated weighing cell (0.1 mg resolution, 0.02% RSD) isolated from the ambient atmosphere, with dual non-encapsulated thermocouples for fast, precise temperature control.

How Additive Plus supports it

A configured, installed analyzer with your TGA methods ready to run.

Step 01

Configure to your samples

We set up the SOPs — temperatures, atmospheres, heating stages and lid handling — for your material and standard before it ships.

Step 02

Install & train

Factory-trained engineers install, connect the gases and exhaust, and train your team on weighing, SOPs and results.

Step 03

Method & QC support

We help validate the method against your standard — ASTM D 7582, LOI or dry-mass/ash — and build a repeatable throughput workflow.

What the TGA Thermostep measures

Full technical specifications are in the Specifications tab. Key measurement capability:

Parameter	TGA Thermostep
Measures	Moisture, ash, volatiles (loss on ignition)
Samples per run	19 crucibles + 1 reference · 500 mg – 5 g each
Furnace	Resistance-heated ceramic, 50–1,000 °C in 1 °C steps
Atmospheres	Nitrogen, oxygen or air, selectable per stage
Balance	Encapsulated cell, 0.1 mg resolution, 0.02% RSD
Standards	ASTM D 7582 (coal volatiles) · LOI methods

ELTRA TGA Thermostep thermogravimetric analyzer encapsulated weighing cell — The encapsulated weighing cell — isolated from ambient air for stable, precise thermogravimetric results.

Typical applications

Moisture, ash and volatiles across many industries.

Coal & coke

Proximate analysis, ASTM D 7582

Building materials

Loss on ignition (LOI)

Food & feed

Dry mass & ash content

Plastics & polymers

Filler & volatile content

Glass & ceramics

Binder burnout, residue

Environment & recycling

Organic & ash fractions

Not sure the TGA Thermostep is the right fit?

Higher capacity, or a different elemental measurement.

Higher capacityTGA Thermostep MLLarger-load thermogravimetric analyzer.Compare analyzer →
Surface carbonELTRA SurfaceC-800Combustion + IR surface-carbon analyzer.Compare analyzer →
Fit out the labQATM Lab FurnitureModular cabinets & workbenches.View system →

Tell us the material and parameters you need — moisture, ash, volatiles or LOI — and the standard you work to, and our applications engineer will confirm whether the TGA Thermostep or the higher-capacity ML is the right fit, and can run your own sample first. Sub-4h reply, NDA standard.

Why source the TGA Thermostep through Additive Plus

Authorized channel for ELTRA / Verder Scientific lab equipment — sales, installation, training and service in one place.
Full materials-QC line — thermogravimetry, carbon analysis, sample prep and optical inspection from one partner.
Method development on your samples — SOPs, standard validation and a repeatable throughput workflow.
<24h response from engineers who run materials characterization in-house. NDA standard.

Brand	ELTRA
Model	TGA Thermostep
Measured elements	ash content, moisture, volatiles
Samples	inorganic, organic, synthetic
Field of application	agriculture, biology, chemistry / plastics, coal / power plant, construction materials, environment / recycling, food, geology / mining, glass / ceramics, medicine / pharmaceuticals
Furnace	resistance heated ceramic furnace, programmable in 1 °C steps from 50 °C up to 1000 °C
Detection method	balance
Max. number of samples	19 crucibles + 1 reference crucible
Balance resolution	0.0001 g
Gas required	depends on application: oxygen 99.9 % pure (2 - 4 bar) and,or nitrogen 99.9 % pure (2 - 4 bar) and air 99.5 % (5 - 6 bar)
Power requirements	230 V, 50/60 Hz, max. 32 A
Dimensions (W x H x D)	550 x 520 x 620 mm / 21.65 x 20.47 x 24.41 in
Weight	~ 65 kg
Required equipment	PC, monitor, external exhaust (exhaust diameter: 100 mm / blower with 4m-3/min)

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Common questions

Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.

What does the ELTRA TGA Thermostep measure?

The TGA Thermostep is a thermogravimetric analyzer that determines moisture, ash and volatiles — as well as loss on ignition — by heating samples in a programmable furnace and continuously weighing them on an integrated balance. Because heating and weighing are combined in one instrument, all these parameters are measured automatically in a single analysis run, replacing manual work with laboratory ovens and muffle furnaces.

How many samples can it run at once?

Up to 19 samples plus one reference crucible in a single cycle, with typical sample weights between 500 mg and 5 g. You can weigh each sample directly into its crucible in the carousel, or load a carousel that has already been weighed externally. A full moisture/volatile/ash analysis takes roughly four hours and runs unattended once started.

What temperature range and atmospheres does it support?

The resistance-heated ceramic furnace is programmable in 1 °C steps from 50 to 1,000 °C, and you define the temperature profile in the SOP. At each stage you can select nitrogen, oxygen or ambient air — for example an inert step to drive off volatiles, then oxygen to ash the sample. Two non-encapsulated thermocouples give fast, precise temperature control.

What is the crucible-lid handling for?

The TGA Thermostep can raise or lower crucible lids automatically at each stage of the analysis. Covering the sample during the volatiles step and uncovering it for ashing is exactly what the coal method requires, so the analyzer performs safe, ASTM D 7582-compliant determination of volatiles without an operator opening a hot furnace to move lids by hand.

Which materials and standards is it used for?

The TGA Thermostep handles inorganic, organic and synthetic samples across agriculture, chemistry and plastics, coal and power, construction materials, environment and recycling, food, geology and mining, glass and ceramics, and pharmaceuticals. It is ASTM D 7582 compliant for coal proximate analysis and widely used for loss on ignition on building materials and dry-mass/ash on food.

What does it need to run?

The TGA Thermostep needs a PC and monitor, an external exhaust (100 mm, blower ~4 m³/min), and the gases your method uses — oxygen and/or nitrogen at 99.9% (2–4 bar) and air at 99.5% (5–6 bar). It runs on 230 V (max 32 A). The encapsulated weighing cell (0.1 mg resolution, 0.02% RSD) is isolated from the ambient atmosphere for stable, precise results.

What is the lead time, and can Additive Plus set it up?

The TGA Thermostep is configured to order; request a quote for the current lead time. Additive Plus is an authorized ELTRA / Verder Scientific channel and handles installation, gas and exhaust connection, and operator training, then validates the SOP against your standard — ASTM D 7582, LOI or ash. You can also send samples for a paid measurement first. Sub-4h reply, NDA standard.

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Order ELTRA TGA Thermostep Thermogravimetric Analyzer – Moisture, Ash & Volatiles | 19 Samples, 1000 °C direct, or talk to materials engineer

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