Free U.S. shipping on orders over $200 · Mutual NDA standard before any file review.
Talk to an engineer →
On backorder
With every system
- Configuration & install support we help set the anneal-and-cool profile and options to your protocol
- US-based service & spares Carbolite Gero calibration, parts and support handled locally
Furnances, Industrial Ovens
Carbolite Gero TLD Rapid Cooling Oven – 400°C | Thermoluminescent Dosimeter Annealing
Rapid-cooling oven for annealing thermoluminescent dosimeters (TLDs) — 400 °C in a compact 3 L chamber with a CC-T1 programmable controller that automatically activates a cooling blower for defined, repeatable cool-down and reproducible dosimeter readings.
- ✓ Automatic rapid cooling — CC-T1 controller triggers the cooling blower on a set schedule
- ✓ 400 °C, compact 3 L chamber — sized for TLD chips and small samples
- ✓ Horizontal forced-air circulation — even heating and cooling
- ✓ Configured to order — lead time on request; install & support included
Price held 7 days after order.
What your dosimetry lab actually checks
What your dosimetry lab actually checks
Reproducible anneal-and-cool cycles
The CC-T1 controller automatically activates a cooling blower at the end of heating, so cool-down follows a defined, repeatable schedule. Combined with horizontal forced-air circulation at 400°C in a 3 L chamber, that controlled cycle is what keeps TLD glow-curve readings consistent batch to batch.
An applications engineer on the line
Questions on anneal profiles, cool-down schedules or reproducibility? Our engineers run controlled thermal cycles in-house at AO Metal. Sub-4h reply, NDA standard.
400°C
Max temperature
3 L
Chamber volume
Auto blower
Rapid cooling
CC-T1
Controller
About this product
The Carbolite Gero TLD is a rapid-cooling oven purpose-built for annealing thermoluminescent dosimeters (TLDs) — the crystals used to measure exposure to ionising radiation. It reaches 400°C in a compact 3-litre chamber, and a CC-T1 programmable controller automatically activates a cooling blower at the end of the heating stage so samples cool down on a defined, repeatable schedule. Horizontal forced-air circulation from a rear-mounted fan gives even heating and cooling, a stainless-steel liner and mesh shelves hold the dosimeters, and the controlled anneal-and-cool cycle is what makes TLD readings reproducible batch after batch.
Why labs choose the TLD
Reproducible anneal-and-cool cycles for radiation dosimetry — figures below are from the Carbolite Gero datasheet.
Automatic rapid cooling
The CC-T1 programmable controller activates the cooling blower automatically at the end of heating, so the cool-down follows a defined, repeatable schedule — critical for consistent TLD glow curves.
400°C, compact chamber
A 3-litre chamber reaches 400°C with ±5°C uniformity — sized for TLD chips and small samples on a bench.
Horizontal forced-air flow
A rear-mounted fan drives horizontal air circulation for even temperature across the load during both the heating and the cooling phase.
Programmable + safety options
The CC-T1 runs the anneal profile; independent over-temperature protection with digital setpoint and a digital process timer are available as options.
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
Confirm the anneal profile you need and options — independent over-temperature protection with digital setpoint, digital process timer and upgraded controllers.
Step 02
Install & support
US-based delivery and setup, operator guidance, and Carbolite Gero spares and service handled locally.
Step 03
Dial in your cycle
We help set the heating and controlled-cooling schedule so your dosimeter anneal is reproducible run to run.
Specification
| Model | Max temp | Chamber volume | Cooling |
|---|---|---|---|
| TLD/3 | 400°C | 3 L | Automatic blower (CC-T1) |
Temperature uniformity ±5°C. Full dimensions, shelf loading and power rating are in the Specifications tab.
Typical applications
Where a rapid-cooling anneal oven earns its place.
TLD annealing
Regenerating thermoluminescent dosimeter crystals
Radiation dosimetry
Health physics and personal-dosimetry labs
Reproducible thermal cycling
Defined heat-then-rapid-cool small-sample cycles
Small-sample R&D
Bench thermal trials needing controlled cool-down
Not sure the TLD is the right oven?
If you need general heat treatment rather than rapid-cool dosimeter annealing, another Carbolite Gero oven may fit better.
Bench high-temp lab ovenLHT Laboratory OvenView oven →
General high-temp heatHT Industrial OvenView oven →
General lab dryingAX Laboratory OvenView oven →
General high-temp heatHT Industrial OvenView oven →
General lab dryingAX Laboratory OvenView oven →
Tell us your dosimeter type and the anneal profile you run — heating temperature, hold time and target cool-down — and our applications engineer will confirm the right TLD configuration and options. Priced per specification.
Why source through Additive Plus
- Process expertise — help setting a reproducible anneal-and-cool schedule, not just oven delivery.
- In-house heat treatment at AO Metal — we run controlled thermal cycles daily and understand reproducibility.
- 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 |
| Model | TLD/3 |
| Max temperature | 400°C |
| Chamber volume | 3 L |
| Temp uniformity | ±5.0°C |
| Cooling | Automatic cooling blower (CC-T1 controlled) |
| Air circulation | Horizontal forced air, rear-mounted fan |
| Controller | CC-T1 programmable |
| Interior | Stainless steel liner, stainless mesh shelves |
Need a different anneal setup?
The TLD is configured to order with programmable control and independent over-temperature protection options. Tell us your dosimeter type and anneal protocol and we'll spec it to run reproducibly.
Other products teams run alongside Carbolite Gero TLD Rapid Cooling Oven – 400°C | Thermoluminescent Dosimeter Annealing
Furnances
Carbolite Gero PF Fan Convection Laboratory Oven – Up to 300°C | 28–910 L
Fan-convection laboratory oven in six sizes from 28 to 910 L — 300 °C on PF 30–PF 200, 250 °C on the large PF 400/800, with ±5 °C uniformity, a stainless-steel chamber and options for solvent stoving, curing and moisture extraction.
- ✓ Fan convection to 300 °C — ±5 °C uniformity, rapid heat-up and recovery
- ✓ Six sizes, 28–910 L — bench-top to floor-standing
- ✓ Stoving & curing, moisture extraction and variable-speed fan 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 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
Furnances
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
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.
Accessories APSX
Dryer Oven
General purpose oven for heating the plastic pellets up to 437° F.
From $900
Add to cart
In stock
Furnances
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 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.
Furnances
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.From labs running the Carbolite Gero TLD
Unedited feedback from dosimetry and health-physics labs.
★★★★★
The automatic cooling gives us a repeatable cool-down every run, so our glow curves are finally consistent batch to batch.
DR
Daniel R. Health Physicist · Radiation dosimetry
★★★★★
Compact, simple to run, and the CC-T1 handles the anneal profile without us babysitting it. Reproducibility improved noticeably.
PS
Priya S. Lab Manager · Medical physics
★★★★★
Additive Plus helped us set the heating and cool-down schedule for our TLD material. Support was quick and knowledgeable.
MT
Marcus T. Dosimetry Technician · Nuclear
Common questions
Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.
What is the TLD rapid cooling oven used for?
The Carbolite Gero TLD is purpose-built for annealing thermoluminescent dosimeters — the crystals used to measure exposure to ionising radiation. After a dosimeter is read, it must be annealed (heated and then cooled on a controlled schedule) to erase residual signal and regenerate it for reuse. The TLD provides that heat-and-rapid-cool cycle at up to 400°C in a compact 3 L chamber, which is essential for reproducible dosimetry results.
How does the automatic cooling work?
The CC-T1 programmable controller automatically activates a cooling blower at the end of the heating stage, so the cool-down follows a defined, repeatable schedule rather than depending on the oven cooling naturally. Because the rate and shape of the cool-down directly affect a dosimeter's sensitivity, this controlled rapid cooling is what makes TLD glow-curve readings consistent from one anneal batch to the next.
What is the maximum temperature and chamber size?
The TLD/3 reaches 400°C with ±5°C temperature uniformity in a compact 3-litre chamber — sized for TLD chips and small sample batches on a bench. Horizontal forced-air circulation from a rear-mounted fan gives even temperature during both heating and cooling. A stainless-steel liner and stainless mesh shelves hold the dosimeters. Tell us your batch size and we will confirm it suits your throughput.
Can I program the anneal profile?
Yes. The CC-T1 controller runs the programmable heating profile and triggers the cooling blower automatically. A range of upgraded digital controllers, multi-segment programmers and data loggers with digital communications is available if you need more complex profiles or traceable records. Additive Plus will help you set up the heating temperature, hold time and controlled cool-down so the anneal matches your dosimeter type and protocol.
Is over-temperature protection available?
Yes. Independent over-temperature protection with its own digital setpoint and display is available as an option, and we recommend it to protect the dosimeters and the oven during unattended anneal runs. A digital process timer is also available. These options are specified at time of order; our applications engineer will advise which suit your workflow and how you run the oven.
Which dosimeter materials can it anneal?
The TLD is designed for the anneal cycles used with common thermoluminescent dosimeter materials, which typically require heating to a few hundred degrees followed by a controlled cool-down. The exact temperature, hold time and cooling rate depend on the specific TLD material and your laboratory protocol. Share your dosimeter type and anneal procedure and our applications engineer will confirm the oven is configured to run it reproducibly.
What is the lead time and does Additive Plus install it?
The TLD is configured to order, so lead time depends on the options chosen — 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 controlled thermal cycles in-house at AO Metal, we can help you establish a reproducible anneal-and-cool schedule for your dosimeters.
Place your order, or talk to an engineer first
Order Carbolite Gero TLD Rapid Cooling Oven – 400°C | Thermoluminescent Dosimeter Annealing direct, or talk to materials engineer