Turning uncontrolled heat into
verifiable process conditions
From 1200 °C to 1800 °C+, under vacuum, controlled atmosphere or reactor conditions. Custom high-temperature systems, each delivered with measured thermal data rather than nominal ratings.
Where do you fit?
Four paths, four ways of working. Picking the wrong one is fine — we will route you to the right person.
Custom engineering
You know the temperature, atmosphere and workpiece size, but nothing off-the-shelf fits.
Standard models
Conventional conditions; you want equipment quickly and can select by specification.
Lab & testing
Universities and institutes needing small-batch, multi-parameter units with data export.
Line integration
Integrating heating into an existing line, including automation, handling and controls.
How custom engineering works
Custom does not mean no standard — it means the standard comes from your process. Five steps, each with a defined deliverable.
Requirements
Profile, atmosphere, material and size, throughput, site conditions.
Proposal
Furnace selection, elements, chamber material, control strategy, interlocks.
3D confirmation
Envelope, interfaces, footprint, lifting, line interfaces — confirmed before production.
Build & test
Built in our own factory. Empty-chamber thermal test before delivery, with data report.
Delivery
On-site commissioning, operator training, acceptance against agreed figures.
Every unit is recalculated
Chamber size, insulation thickness, element layout, sensor placement — none of these come from a catalogue. They are calculated from your workpiece and profile.
Chamber
One-piece polycrystalline alumina ceramic fiber. High density, low conductivity, no dusting at temperature — the first determinant of uniformity.
- Material
- Polycrystalline alumina fiber
- Continuous rating
- ≤ 650 °C
- Construction
- Seamless, one-piece
Capability envelope
The range of conditions we have delivered. Outside it, we assess and give a clear answer on feasibility. Browse by: product families, muffle furnaces, vacuum furnaces, industry solutions, model index, about Guangshu.
TEMPERATURE ENVELOPE≤ 1800 °C
Company & capability
Verifiable facts, not adjectives.
Our own workshop, site and test stations. Units are assembled, wired and thermally tested in-house before dispatch.
Delivered systems
Figures taken from actual technical agreements. Performance varies with conditions; the signed proposal governs.
Muffle furnace
GSL-4-1800 high-temperature furnace
High-temperature environment test platform for strain gauges
GSF-12-1700 bell-type sintering furnace
After delivery
The value of a furnace lies in its ten-year service life, not the delivery date.
Installation & training
On-site commissioning and acceptance against agreed figures, with operator training and full documentation.
- Commissioning
- Acceptance
- Training
- Documentation
Warranty & spares
Free repair or replacement for product defects during the warranty period. Consumables available long term.
- Heating elements
- Thermocouples
- Controllers
- Insulation
Remote support
Remote diagnostics and parameter adjustment. Remote support for exported equipment to minimise downtime.
- Diagnostics
- Parameter tuning
- Process adjustment
- Overseas support
Frequently asked
How long does custom engineering take?
It depends on complexity: 30–60 days for standard furnace types, 60–120 days with vacuum systems, automation or line integration. Once the proposal is agreed we commit to a lead time in the contract.
What temperature uniformity can you achieve?
In delivered projects, precision annealing units reach ±3 °C by multi-point measurement. Whether it is achievable depends on chamber size, temperature band and loading. We do not promise figures we cannot meet — if it is out of reach we say so during the proposal stage.
Is uniformity a nominal or measured value?
Measured. Every unit is thermally tested empty before delivery and ships with the data report. Nominal figures mean nothing in a contract; verifiable data does.
What certifications are needed for export?
ISO 9001 (cert. 5912024Q1098R0S, valid to Jul 2027) and a CE Verification of Conformity for high-temperature electric furnaces issued by ICR Co. Ltd. (cert. ICR/VC/HM2405129, valid to May 2029). The CE document is a voluntary verification, not a notified-body EU certification. Some destinations require additional local compliance documents — please state the destination country when enquiring.
Can we validate at small scale first?
Yes — lab and pilot-scale units exist precisely for process validation. Production-line configuration can follow once validated.
Tell us your process conditions
Profile, atmosphere, workpiece size, throughput — give us whatever you have. We reply within 24 hours with a clear feasibility answer.
Submit your conditions and we will contact you within 24 hours.
Open the inquiry form →Or call +86 181 2113 9525