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In every order
- Full lot COA — PSD, sphericity, flow rate, chemistry
- Qualified parameter sets for the major LPBF systems
- Mutual NDA before any file or spec review
- Free U.S. shipping over $200 · fast dispatch from L.A.
Furnances, Atmosphere Controlled Ovens
CONTROLLED ATMOSPHERE OVEN - HTMA
The HTMA series is a range of modified atmosphere high temperature ovens for use with inert atmospheres up to 700°C.
NDA standard
Ships in 1–2 business days
Spec-match guarantee on every lot
Built for production teams
What your process engineer actually checks
Locked, traceable lot chemistry
Every lot ships with a COA documenting PSD, sphericity, flow rate, apparent density, and full chemistry — and a lot number you can trace. Aerospace and medical teams reorder 4+ times without re-qualifying.
Qualified parameters, not just powder
Validated parameter sets for EOS M 290, Renishaw 500Q, SLM 280, and our own AO Metal LPBF ship with the order. Load the profile and hit density on the first build — no parameter-development burn.
A materials engineer on the line
Questions on ferrite content, flowability, recyclate ratios, or HIP response? A materials engineer answers directly — not a contact-form bot. Most replies in under 4 hours, NDA standard.
About this product
STANDARD FEATURES
• 400°C, 500°C, 600°C or 700°C operating temperatures
• 28, 95, 220, 500 & 1000 litre capacities
• Carbolite Gero 301 controller, with single ramp to set-point & process timer
• Rear mounted fan & side air guides give horizontal ‘airflow’
• Fully seam welded to contain modified atmosphere
• Manual gas control via needle valves & flowmeters (nickel brass)
• Corrosion resistant stainless steel interior with perforated non-tip shelves & runners
• Stainless steel pipe-work, nickel brass flow-meter & solenoid valves
• Single side hinged door, with metal heat seal & rubber gas tight seal, closed using non slam handle
• Hard wearing, zinc coated & stoved epoxy polyester coated exterior
• Gas inlet connection: bulkhead compression fitting to suit 10 mm outside diameter tube (maximum inlet pressure = 2 bar)
• Door switch
OPTIONS (SPECIFY THESE AT TIME OF ORDER)
• A range of sophisticated digital controllers, multi-segment programmers and data loggers is available. These can be fitted with RS232, RS485 or Ethernet communications – more information
• Automatic gas control (requires a EPC3016P1, CC-T1, EPC3008P10 or Nanodac series programmable controller)
• Stainless steel flow-meter & solenoid valves, instead of nickel brass
• Fixed or castor mounted floor stands
• Flow failure alarm
• Oxygen sensor fitted to gas outlet to monitor oxygen level, displayed as ppm (parts per million) or percentage. Only available for use with nanodac instruments
STANDARD FEATURES
• 400°C, 500°C, 600°C or 700°C operating temperatures
• 28, 95, 220, 500 & 1000 litre capacities
• Carbolite Gero 301 controller, with single ramp to set-point & process timer
• Rear mounted fan & side air guides give horizontal ‘airflow’
• Fully seam welded to contain modified atmosphere
• Manual gas control via needle valves & flowmeters (nickel brass)
• Corrosion resistant stainless steel interior with perforated non-tip shelves & runners
• Stainless steel pipe-work, nickel brass flow-meter & solenoid valves
• Single side hinged door, with metal heat seal & rubber gas tight seal, closed using non slam handle
• Hard wearing, zinc coated & stoved epoxy polyester coated exterior
• Gas inlet connection: bulkhead compression fitting to suit 10 mm outside diameter tube (maximum inlet pressure = 2 bar)
• Door switch
OPTIONS (SPECIFY THESE AT TIME OF ORDER)
• A range of sophisticated digital controllers, multi-segment programmers and data loggers is available. These can be fitted with RS232, RS485 or Ethernet communications – more information
• Automatic gas control (requires a EPC3016P1, CC-T1, EPC3008P10 or Nanodac series programmable controller)
• Stainless steel flow-meter & solenoid valves, instead of nickel brass
• Fixed or castor mounted floor stands
• Flow failure alarm
• Oxygen sensor fitted to gas outlet to monitor oxygen level, displayed as ppm (parts per million) or percentage. Only available for use with nanodac instruments
HTMA 4/28
| Max temp (°C) | 400 |
| Volume (litres) | 28 |
HTMA 4/95
| Max temp (°C) | 400 |
| Volume (litres) | 95 |
HTMA 4/220
| Max temp (°C) | 400 |
| Volume (litres) | 220 |
HTMA 4/500
| Max temp (°C) | 400 |
| Volume (litres) | 500 |
HTMA 4/1000
| Max temp (°C) | 400 |
| Volume (litres) | 1000 |
HTMA 5/28
| Max temp (°C) | 500 |
| Volume (litres) | 28 |
HTMA 5/95
| Max temp (°C) | 500 |
| Volume (litres) | 95 |
HTMA 5/220
| Max temp (°C) | 500 |
| Volume (litres) | 220 |
HTMA 5/500
| Max temp (°C) | 500 |
| Volume (litres) | 500 |
HTMA 5/1000
| Max temp (°C) | 500 |
| Volume (litres) | 1000 |
HTMA 6/28
| Max temp (°C) | 600 |
| Volume (litres) | 28 |
HTMA 6/95
| Max temp (°C) | 600 |
| Volume (litres) | 95 |
HTMA 6/220
| Max temp (°C) | 600 |
| Volume (litres) | 220 |
HTMA 6/500
| Max temp (°C) | 600 |
| Volume (litres) | 500 |
HTMA 6/1000
| Max temp (°C) | 600 |
| Volume (litres) | 1000 |
HTMA 7/28
| Max temp (°C) | 700 |
| Volume (litres) | 28 |
HTMA 7/95
| Max temp (°C) | 700 |
| Volume (litres) | 95 |
HTMA 7/220
| Max temp (°C) | 700 |
| Volume (litres) | 220 |
HTMA 4/28
| Max temp (°C) | 400 |
| Volume (litres) | 28 |
HTMA 4/95
| Max temp (°C) | 400 |
| Volume (litres) | 95 |
HTMA 4/220
| Max temp (°C) | 400 |
| Volume (litres) | 220 |
HTMA 4/500
| Max temp (°C) | 400 |
| Volume (litres) | 500 |
HTMA 4/1000
| Max temp (°C) | 400 |
| Volume (litres) | 1000 |
HTMA 5/28
| Max temp (°C) | 500 |
| Volume (litres) | 28 |
HTMA 5/95
| Max temp (°C) | 500 |
| Volume (litres) | 95 |
HTMA 5/220
| Max temp (°C) | 500 |
| Volume (litres) | 220 |
HTMA 5/500
| Max temp (°C) | 500 |
| Volume (litres) | 500 |
HTMA 5/1000
| Max temp (°C) | 500 |
| Volume (litres) | 1000 |
HTMA 6/28
| Max temp (°C) | 600 |
| Volume (litres) | 28 |
HTMA 6/95
| Max temp (°C) | 600 |
| Volume (litres) | 95 |
HTMA 6/220
| Max temp (°C) | 600 |
| Volume (litres) | 220 |
HTMA 6/500
| Max temp (°C) | 600 |
| Volume (litres) | 500 |
HTMA 6/1000
| Max temp (°C) | 600 |
| Volume (litres) | 1000 |
HTMA 7/28
| Max temp (°C) | 700 |
| Volume (litres) | 28 |
HTMA 7/95
| Max temp (°C) | 700 |
| Volume (litres) | 95 |
HTMA 7/220
| Max temp (°C) | 700 |
| Volume (litres) | 220 |
| Brand | Carbolite Gero |
| Model | HTMA 6/28 |
| Max temp | 600°C |
| Volume (litres) | 28 |
| Heat-up time (mins) | 60 |
| Recovery time (mins) | 10 |
| Dimensions: Internal H x W x D | 305 x 305 x 305 mm / 12.01 x 12.01 x 12.01 in |
| Dimensions: External H x W x D | 990 x 810 x 885 mm / 38.98 x 31.89 x 34.84 in |
| Shelves fitted / accepted | 2 / 2 |
| Shelf loading each / total (kg) | 10 / 20 |
| Max power (W) | 2000 |
| Weight (kg) | 73 |
Full documentation — TDS, SDS, batch COA, and parameter sets for the major LPBF platforms. Everything you need for qualification under AS9100 / ISO 13485 workflows.
Don't see your spec?
We atomize our own. Custom variants on request.
Tighter PSD, modified chemistry, custom blend? Our ATO atomization lab runs custom batches in 3–4 weeks. Biocompatible, refractory, proprietary — all in-house, verified before ship.
Frequently bought together
Complete the workflow
What teams add to an order so the first build runs clean — handling, plates, and a sample to qualify before you commit volume.
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From process engineers running CONTROLLED ATMOSPHERE OVEN - HTMA
Unedited feedback from customers who reorder CONTROLLED ATMOSPHERE OVEN - HTMA.
★★★★★
Same lot 4 times in a row. We stopped re-running parameter sweeps after the second order — density was identical to the first build.
MK
Marcus K.
Process Engineer · Aerospace OEM
★★★★★
Asked about ferrite content on a Friday. A materials engineer answered Monday morning with actual data, not a sales pitch. That's why we keep ordering.
PS
Priya S.
R&D Lead · Medical Devices
★★★★★
COA matches the bottle. PSD and flow are exactly what was on the sheet — we run it on a Renishaw 500Q and it hits density on the first try.
DR
Diego R.
Production Lead · Energy
Place your order, or talk to an engineer first
Order 316L direct, or send your application and we'll recommend the right alloy and PSD for your printer.