High-Temperature Endoscope

Product Overview

The High-Temperature Endoscope is a furnace inspection instrument that allows operators to look directly inside a running furnace at temperatures up to 2000°C. A cooled probe is inserted through an inspection port, while air and water cooling protect the optics and a sapphire window transmits a clear image to a high-resolution camera.

Because inspection is performed without shutting the furnace down, plants can monitor internal condition, analyse operation, and plan maintenance with minimal disruption — saving both downtime and cost.

Key Features

Up to 2000°C

Engineered for extreme-temperature furnaces across steel, glass, foundry, and thermal processing.

Inspect Without Shutdown

Real-time viewing of internal furnace condition while the furnace remains in operation.

Dual View Angle

Straight-view (0°) and down-view (90°) optics to see both ahead and below the probe tip.

High-Resolution Imaging

~20.2 MP CMOS camera delivers clear live images and high-quality photo capture for records.

Air & Water Cooling

Integrated cooling channels protect the probe and optics in sustained high-heat service.

Sapphire Optical Window

A sapphire viewing window maintains clarity and durability in aggressive furnace atmospheres.

How It Works

Insert Through Port

The cooled probe is introduced through a furnace inspection port or peephole.

Cooling Protection

Air and water channels keep the probe and optics within safe operating temperature.

Optical Capture

The sapphire window and 0°/90° lens collect the internal view of the hot zone.

Live Imaging

The high-resolution camera streams a real-time image to a monitor or capture device.

Record & Analyse

Operators photograph and record the furnace interior for inspection, analysis, and maintenance planning.

Technical Specifications

Parameter	Specification
Max Furnace Temperature	Up to 2000°C
Probe Diameter	Ø 55 mm
Working Length	1100 mm
View Angle	0° (straight) + 90° (down)
Imaging Sensor	~20.2 MP CMOS
Optical Window	Sapphire, Ø 25 mm pinhole / 1 mm port
Air Cooling	0.3 MPa, ≥ 0.3 m³/min
Water Cooling	0.1 – 0.4 MPa, ≥ 30 L/min

Specifications shown for the standard Ø55 mm model. Probe diameter, length, and lens configuration can be tailored to your inspection port and application.

Configurations

Option A · Air + Water

Ø 50 mm — up to 2000°C

Probe Ø 50 mm, length 1100 mm
1 air-cooling + 1 water-cooling channel
Max working temperature 2000°C
Standard straight-view (0°) lens; optional angled lens

Option B · Air-Cooled

Ø 46 mm — up to 1200°C

Probe Ø 46 mm, length 1100 mm
Air-cooling only (no water channel)
Max working temperature 1200°C
Standard straight-view (0°) lens; optional angled lens

Endoscope vs. Inspection System

The high-temperature endoscope provides the cooled probe, optics, and imaging for visual inspection.

A high-temperature inspection system adds an internal temperature sensor to the endoscope, enabling internal-temperature monitoring with an over-temperature alarm (default alarm threshold 65°C) — useful where continuous condition monitoring and equipment protection are required.