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- Configuration & install support we spec the controller, options and safety package to your process
- US-based service & spares Carbolite Gero calibration, parts and support handled locally
Furnances, Laboratory Ovens
Carbolite Gero AX Laboratory Oven – Fan Convection Up to 250°C | 28–128 L
Bench-top fan-convection laboratory oven — 250 °C max across three sizes (28, 66, 128 L), ±5 °C uniformity at 250 °C and a ~23-minute heat-up, with a chemically resistant stainless-steel chamber and R38 digital PID control.
- ✓ 250 °C fan-convection heating — ±5 °C uniformity, 23–26 min heat-up, 3 min recovery
- ✓ Three bench sizes — 28, 66 and 128 L, stackable to save space
- ✓ Chemically resistant stainless-steel liner — built to BS EN 61010-2-010
- ✓ Configured to order — lead time on request; install & support included
Price held 7 days after order.
Install + training included
Tailored service plan
What your lab lead actually checks
What your lab lead actually checks
Uniform, repeatable lab heating
Fan convection holds ±5°C at 250°C with a ~23-minute heat-up and 3-minute recovery. A chemically resistant stainless-steel chamber and airtight seal keep results consistent — built to safety standard BS EN 61010-2-010.
An applications engineer on the line
Questions on drying temperatures, annealing schedules or controller choice? Our engineers run heat treatment in-house at AO Metal. Sub-4h reply, NDA standard.
250°C
Max temperature
28 · 66 · 128 L
Chamber volumes
±5°C @ 250°C
Uniformity
R38 PID
Controller
About this product
The Carbolite Gero AX is a range of bench-mounted fan-convection laboratory ovens with a 250°C maximum operating temperature, available in three chamber sizes — 28, 66 and 128 litres. Fan convection gives rapid, uniform heating (±5°C at 250°C, roughly a 23-minute heat-up and 3-minute recovery), and a chemically resistant stainless-steel liner stands up to routine lab chemistry. The R38 digital PID controller sets and holds temperature; optional over-temperature protection and a countdown timer make the oven safe for unattended runs. In an additive workflow the AX is a workhorse for drying feedstock, conditioning samples and low-temperature annealing of polymer parts.
Why engineers choose the AX
A dependable 250°C bench oven for everyday lab and AM heat work — figures below are from the Carbolite Gero datasheet.
Fan-convection uniformity
Forced-air circulation holds ±5°C at 250°C with a 23–26 min heat-up and 3 min recovery after the door is opened — consistent results across the whole chamber.
Chemically resistant chamber
A stainless-steel liner and airtight silicone door seal resist the fumes and residues of routine lab work, and clean up quickly between jobs.
Three bench sizes
28, 66 and 128 L chambers take two shelves as standard (up to four or eight accepted), and units can be stacked with an optional frame to save bench space.
R38 digital PID control
Single-setpoint PID control as standard, built to safety standard BS EN 61010-2-010. Add over-temperature protection and a countdown timer for safe unattended operation.
How Additive Plus delivers it
Configured to order, installed and supported by engineers who run heat treatment in-house.
Step 01
Configure to your process
Pick chamber size (28, 66 or 128 L), controller and options — over-temperature protection, timer, extra shelves, lockable door or low-voltage supply.
Step 02
Install & support
US-based delivery and setup, with operator guidance and Carbolite Gero spares and service handled locally.
Step 03
Dial in your cycle
We help set drying, conditioning or annealing temperatures and times for the powders, filaments and printed parts you run.
Models & chamber volumes
| Model | Max temp | Chamber volume | Max power |
|---|---|---|---|
| AX30 | 250°C | 28 L | 1000 W |
| AX60 | 250°C | 66 L | 1500 W |
| AX120 | 250°C | 128 L | 2000 W |
Minimum operating temperature is approximately ambient +30°C. Full per-model dimensions, shelf loading, air changes and heat-up times are in the Specifications tab.
Typical applications
Where a 250°C bench oven earns its place in a lab and AM workflow.
Feedstock drying
Moisture removal from filament, powder & pellets
Polymer part annealing
Low-temperature stress relief of FDM/SLS parts
Resin post-cure & stoving
Thermal cure of coatings and adhesives
Moisture & gravimetric work
Sample drying to constant weight
General lab heating
Sample conditioning, drying & routine heat work
Not sure the AX is the right oven?
If you need more temperature, more sizes or a particle-clean chamber, a sibling Carbolite Gero oven may fit better.
Higher temp / more sizesPF Laboratory OvenView oven →
Need 400–600°CLHT Laboratory OvenView oven →
Particle-clean heatingCR Clean Room OvenView oven →
Need 400–600°CLHT Laboratory OvenView oven →
Particle-clean heatingCR Clean Room OvenView oven →
Tell us what you’re drying, curing or annealing — and the sizes you’re working with — and our applications engineer will confirm the right AX size, controller and options. Configurations are priced per specification.
Why source through Additive Plus
- AM process expertise — drying, conditioning and annealing schedules for the powders, filaments and printed parts you run, not just oven delivery.
- In-house heat treatment at AO Metal — we run post-processing daily and can advise on cycles for your parts.
- US-based support and consumables — Carbolite Gero service, spares and calibration handled locally.
- Sub-24h engineer response — on every enquiry, with leasing and financing available.
| Brand | Carbolite Gero |
| Models | AX30, AX60, AX120 |
| Max temperature | 250°C |
| Chamber volumes | 28 / 66 / 128 L |
| Temp uniformity | ±5.0°C @ 250°C |
| Heat-up time | 23–26 min |
| Recovery time | 3 min |
| Controller | R38 digital PID |
| Shelves fitted / accepted | 2 / 4–8 |
| Max power | 1000–2000 W |
| Weight | 24–55 kg |
| Safety standard | BS EN 61010-2-010 |
Don't see your size or temperature?
Carbolite Gero ovens are configured to order across dozens of chamber sizes, temperature grades and controller options — including AMS2750F (Nadcap) and clean-room builds. Tell us your process and we'll spec the right one.
Other products teams run alongside Carbolite Gero AX Laboratory Oven – Fan Convection Up to 250°C | 28–128 L
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Carbolite Gero HTCR High-Temperature Clean Room Oven – 400–600°C | 28–1000 L
High-temperature clean room oven combining low-shedding clean-room construction with 400, 500 or 600 °C in five sizes from 28 to 1,000 L — enclosed brushless fan, particle-free seal, safe-touch double skin and standard over-temperature protection, with an ISO 14644 Class 5 option.
- ✓ Clean-room build at 400–600 °C — low-shedding insulation, enclosed brushless fan
- ✓ Five sizes, 28–1000 L — sixteen standard models
- ✓ ISO 14644 Class 5 option · over-temperature protection standard
- ✓ Configured to order — lead time on request; install & support included
On backorder
· Lead time: configured to order — request current lead time. Install and support included.
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Carbolite Gero CR Clean Room Oven – Up to 250°C | 30–1810 L
Clean room oven to 250 °C in nine sizes from 30 to 1,810 L — fully sealed low-shedding insulation, enclosed brushless fan and a particle-free door seal keep the load clean, with an optional inert-atmosphere package and through-wall designs.
- ✓ 250 °C clean heating — low-shedding insulation, enclosed brushless fan, particle-free seal
- ✓ Nine sizes, 30–1810 L — bench chamber to floor-standing
- ✓ Inert-atmosphere, through-wall flange and over-temperature options
- ✓ Configured to order — lead time on request; install & support included
On backorder
· Lead time: configured to order — request current lead time. Install and support included.
Furnances
Carbolite Gero LHT High-Temperature Laboratory Oven – 400–600°C | 30–120 L
High-temperature laboratory oven in three grades — 400, 500 and 600 °C — and three bench sizes (30, 60, 120 L). A heavy-duty convection fan and low-thermal-mass insulation give fast, uniform heating, and the oven is rated for continuous operation.
- ✓ Three temperature grades — 400, 500 and 600 °C
- ✓ Three bench sizes — 30, 60 and 120 L, brushed stainless interior
- ✓ Rated for continuous operation — R38 PID control
- ✓ Configured to order — lead time on request; install & support included
On backorder
· Lead time: configured to order — request current lead time. Install and support included.
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Carbolite Gero HTMA Controlled Atmosphere Oven – Up to 700°C | 28–1000 L
Controlled atmosphere oven for metal AM post-processing and materials research — 400–700°C max (4 grades), 28–1,000 L chambers (5 sizes), O₂ down to 50 ppm with N₂/Ar purge. Seam-welded gas-tight chamber built as an atmosphere unit from the ground up.
- ✓ O₂ down to 50 ppm — atmosphere-controlled heat treatment without vacuum-furnace cost
- ✓ 17 configurations in one family — 28 L lab to 1,000 L production, same gas architecture
- ✓ Seam-welded gas-tight chamber — purpose-built, not a retort-converted standard oven
- ✓ Configured to order — request lead time; install, training & cycle validation included
On backorder
· Configured to order — request lead time
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Carbolite Gero LGP Large General Purpose Industrial Oven – Up to 700°C | 500–13,820 L
Large-format industrial oven with the range's widest choice of size and temperature — 500 to 13,820 L in four grades (250, 425, 625 and 700 °C). Heavy-duty impellers, a 430-grade stainless interior, single/double doors and a 3216CC controller with over-temperature protection, plus AMS2750F (Nadcap)-ready builds.
- ✓ 500 to 13,820 L — the largest ovens in the range, single or double door
- ✓ Four temperature grades — 250, 425, 625 and 700 °C
- ✓ AMS2750F (Nadcap) builds, explosion relief and motorised doors available
- ✓ Configured to order — lead time on request; install & training included
On backorder
· Lead time: configured to order — request current lead time. Large-format install and training included.
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Carbolite Gero GP General Purpose Industrial Oven – Up to 300°C | 220–450 L
General-purpose industrial oven to 300 °C in three sizes (220, 330, 450 L) with a choice of vertical (A) or horizontal (B) airflow, a 430-grade stainless-steel case and robust production-duty construction — with AMS2750F (Nadcap)-ready builds available.
- ✓ 300 °C production-grade oven — ±5 °C uniformity, vertical or horizontal airflow
- ✓ Three sizes — 220, 330 and 450 L
- ✓ AMS2750F (Nadcap)-compliant builds available for aerospace heat treatment
- ✓ Configured to order — lead time on request; install & support included
On backorder
· Lead time: configured to order — request current lead time. Install and support included.
Furnances
Carbolite Gero HT High-Temperature Industrial Oven – 400–700°C | 28–350 L
High-temperature industrial oven in four grades — 400, 500, 600 and 700 °C — and four chamber sizes from 28 to 350 L. Robust construction, a stainless-steel liner and perforated shelves handle ageing, tempering, stress relief and high-temperature curing in air.
- ✓ Four temperature grades — 400, 500, 600 and 700 °C
- ✓ Four chamber sizes — 28, 95, 220 and 350 L
- ✓ Robust build — stainless-steel liner, perforated shelves, door switch
- ✓ Configured to order — lead time on request; install & support included
On backorder
· Lead time: configured to order — request current lead time. Install and support included.
Accessories APSX
Dryer Oven
General purpose oven for heating the plastic pellets up to 437° F.
From $900
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In stock
From teams running Carbolite Gero ovens
Unedited feedback from labs and production floors.
★★★★★
Temperature uniformity held within spec across the whole chamber — our heat-treat sign-off stopped being a fight.
DR
Daniel R. Process Engineer · Aerospace
★★★★★
Configured to order meant the exact controller and over-temperature setup we needed, and install was handled end to end.
PS
Priya S. Lab Manager · Materials R&D
★★★★★
Drying our feedstock before printing noticeably cut porosity. Simple, repeatable, reliable.
MT
Marcus T. AM Production Lead · Medical devices
Common questions
Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.
What is the maximum temperature and temperature uniformity of the AX oven?
The Carbolite Gero AX operates up to 250°C with temperature uniformity of ±5°C at 250°C. Fan convection drives rapid, even heating — a heat-up of about 23–26 minutes to setpoint and roughly 3 minutes to recover after the door is opened. The R38 digital PID controller sets and holds the target temperature. For work that needs programmed ramps or tighter control, the AX accepts a range of upgraded Carbolite Gero controllers and multi-segment programmers.
What chamber sizes are available?
The AX range has three bench-mounted sizes: AX30 (28 L), AX60 (66 L) and AX120 (128 L). All share the same 250°C rating and fan-convection design. Each comes with two nickel-chrome wire shelves and accepts up to four, six or eight shelf positions respectively. Units can be stacked with an optional frame to save bench space. Our applications engineer can help you pick the size based on batch and throughput.
Can the AX oven dry 3D printing powder or filament?
Yes. The AX is well suited to drying and conditioning additive feedstock — removing moisture from filament, polymer powder and pellets before printing, which improves layer adhesion and part quality. At up to 250°C it also handles low-temperature annealing of FDM and SLS parts and thermal curing of coatings. We can recommend drying temperatures and dwell times for your material so you get repeatable results without degrading the feedstock.
What controller does the AX use and can I program heating cycles?
The AX ships with the R38 digital PID controller for single-setpoint control. If you need programmed ramps, soaks and data logging, Carbolite Gero offers upgraded controllers, multi-segment programmers and loggers with digital communications that can be specified at time of order. Additive Plus will help you choose the right controller — from simple set-and-hold drying to multi-step conditioning cycles.
Is over-temperature protection included?
Over-temperature protection is an option on the AX, specified at time of order. We recommend it for unattended operation or when the oven holds valuable samples — it isolates the heating if the setpoint is exceeded, protecting both the contents and the oven. A digital countdown timer to switch the oven off and a lockable door are also available. The applications engineer will advise which safety options suit your workflow.
Can the AX ovens be stacked to save bench space?
Yes. An optional stacking frame lets AX units be mounted one above another, useful when bench space is limited or you want to run different processes in parallel. The AX is a bench-top oven, so it does not need a floor stand. Additional shelves and runners can also be specified to increase capacity within a single chamber.
What is the lead time and does Additive Plus install the oven?
The AX is configured to order, so lead time depends on the size and options you choose — request a current quote and we will confirm it. Additive Plus handles US-based delivery and setup, provides operator guidance, and coordinates Carbolite Gero spares, service and calibration locally. Because we run heat treatment in-house at AO Metal, we can also help validate a drying or annealing cycle for your parts before the oven ships.
Place your order, or talk to an engineer first
Order Carbolite Gero AX Laboratory Oven – Fan Convection Up to 250°C | 28–128 L direct, or talk to materials engineer