HT-GF-950 Glass Fusing Kiln

High-Precision Kiln for Glass Fusing, Slumping & Annealing Applications The HT-GF-950 Glass Fusing Kiln is a precision-engineered, high-efficiency thermal processing unit designed for heat transfer like:  glass fusing, slumping, and forming applications. Developed and manufactured by M/s EduTech Lahore, the system delivers uniform temperature distribution, high thermal stability, and programmable control, ensuring professional-grade performance for glass design studios, academic laboratories, and material research centers. Engineered to match the international standards and required specifications, the HT-GF-950 provides robust construction, modern control electronics, and long operational life. Construction & Design Details Double-Laser Insulation:

• Inner lining: K-23 firebricks (1260°C rating)
• Outer layer: 25 mm ceramic fiber blanket for minimal heat loss
• Achieves <10% energy lossand excellent thermal efficiency.
• Quartz Rod Element Support:Prevents sagging and oxidation of heating coils at high temperature.
• Precision Engineered Lid Assembly:Counter-weighted, lockable lid with integrated safety switch and quartz glass view window for observation without temperature disturbance.
• Refractory Shelving System:Includes 2 high-alumina kiln shelves and 6 props for stacking multiple glass pieces.
• Frame & Mobility:Fabricated from mild steel square tubing, powder-coated, and fitted with lockable castorsfor laboratory mobility.
• Bath tub kiln, for fussing application equipped with a lid lock

Accessories

Kiln Shelves	2 x 490mm x 350mm rectangular shelves
Shelf Props	06 props

Performance Highlights

• Reaches 950°C
• Maintains uniformity across chamber
• High-quality Kanthal A1 elements ensure best firing
• Optimized insulation design ensures low outer surface temperature (<60°C)
• Precision control ensures repeatable firing quality for art and industry
• Dual thermocouple setup (top & bottom zone monitoring)
• Data logging with USB / RS-485 connectivity
• Graphical touchscreen controller (7-inch HMI)
• Additional refractory shelves

Safety Features

Feature	Function
Lid Safety Interlock	Automatically cuts power when lid is open
Overtemperature Protection	Controller triggers SSR cutoff beyond setpoint
Thermocouple Break Alarm	Audible/visual alert and safe shutdown
Grounding & Electrical Safety	Meets IEC 60519-2 electrical safety standards
Castor Lock System	Prevents movement during operation

  Key Advantages

• ✅ Engineered in Pakistan to European performance standards
• ✅ Locally serviceable components and after-sales support
• ✅ Long-life heating elements and energy-efficient insulation
• ✅ Installation, calibration, and operator training included
• ✅ 1-year warranty and 10 year support by EduTech Lahore

Controller Capabilities Advanced Furnace Temperature Controller The Controller is an advanced, microprocessor-based temperature and process controller developed to deliver precise, reliable, and flexible control for high-temperature electric furnace​. Designed to meet international standards, it combines intuitive touchscreen operation, intelligent firing assistants, and smart-energy management features for modern laboratory and industrial applications.

Control Type	Digital PID microprocessor control with self-tuning
Display	7in color touch panel
Programs / Segments	50 programs × 40 segments (ramp/soak)
Control Zone	Single zone (expandable to 3 optional)
Input Sensor	Thermocouple Type (configurable)
Temperature Range	Up to 1250 °C
Control Accuracy	±1 °C or ±0.1 % of range
Auxiliary Outputs	SSR or relay, for fan/flap/alarm
Data Logging	USB port (.csv format)
Connectivity	Wi-Fi / USB / RS-485 (Modbus RTU optional)
Languages	English
APP	Mobile Smart App
User Levels	Operator / Supervisor / Service
Mounting	Panel-mounted or wall enclosure
Operating Temperature	0–50 °C ambient
Protection Class	IP 20 (panel) / IP 54 (enclosure)

Control System Features

• Advanced PID controller
  • 50 fully programmable temperature profiles
  • 40 segments per program (ramp, dwell, cool-down)
  • Memory recall and program protection
  • Real-time temperature display and logging
• Automatic air-inlet flap for controlled oxidation at early stages
• Type-S thermocouple for high accuracy and long service life
• Solid-State Relay (SSR) switchingfor noise-free, precise power control
• Auto cutoff on over-temperature or power loss recovery

“50 programs × 40 segments” : A program (aka recipe) is a full firing profile you store in the controller. Example: “Glass fuse slow ramp” or “Cone 6 glaze fire”. The spec “50 programs” means the controller can store up to 50 different recipes in non-volatile memory. A segment is one step inside a program. Each segment defines how temperature should change or be held for a part of the run. Common fields in a segment:

1. Target temperature (°C) or target relative (Δ°C).
2. Ramp rate (°C/min) OR time-to-target (min). (Typically you give either ramp or explicit time.)
3. Soak/hold time at the target (minutes or hh:mm).
4. Output setting or power % (optional, for manual control).
5. Aux outputs (fan on/off, flap open, alarm, datalog marker).

“40 segments” per program means each program may contain up to 40 sequential segments. So one program could be:

1. Ramp 50 °C/min to 200 °C, no hold
2. Ramp 3 °C/min to 600 °C, hold 30 min
3. Ramp 1 °C/min to 950 °C, hold 10 min
4. … up to 40 such steps.

This combination (50 × 40) gives great flexibility: up to 2,000 total segments stored across recipes. Digital Display of HMI and Application ... Applications

• ✅ Glass fusing and slumping
• ✅ Art and design studios
• ✅ Ceramic and enamel coatings
• ✅ Research and material testing
• ✅ Educational demonstrations

Standards & Compliance EduTech Lahore furnaces are engineered and manufactured in compliance with recognized international standards for safety, temperature control, refractory materials, and electrical design. All components are selected, tested, and integrated according to the following key standards:

Category	Standard / Code	Purpose / Scope	Relevance to Our Furnaces
Safety & General Requirements	ISO 13577-1 / -2 — Industrial furnaces and associated processing equipment — Safety requirements (General & Combustion and fuel handling systems)	Defines overall safety principles, protective devices, and interlocks for industrial furnaces and associated processing systems.	Serves as the governing safety framework for the mechanical, thermal, and control design of both electric kilns (950 °C and 1340 °C).
Electrical Safety & Controls	IEC 60204-1 / EN 60204-1 — Safety of Electrical Equipment of Machines	Establishes rules for electrical wiring, earthing, over-current protection, and emergency-stop circuits.	Applied to control panels, solid-state relays, contactors, and the controller assembly.
	IEC 61010-1 — Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use	Covers insulation, protective circuits, and electrical spacing for measurement and control electronics.	Ensures the controller, sensors, and auxiliary electronics meet lab and industrial safety requirements.
Temperature Measurement	IEC 60584 / ASTM E230 — Thermocouples — Reference tables, tolerances, and calibration	Defines thermocouple types (K, S) and their allowable deviation over temperature.	Type K used for 950 °C; Type S used for 1340 °C; guarantees measurement accuracy and interchangeability.
Heating Elements	ASTM B603 / IEC 60672 — MoSi₂, SiC, and ceramic element materials	Specifies electrical, thermal, and mechanical properties for high-temperature resistance elements.	Ensures NiCr, Kanthal, and SiC elements operate safely and efficiently at rated loads.
Refractory & Insulation	ASTM C155 / C134 / C401 — Insulating Firebrick and Refractory Materials	Defines classification, strength, and thermal-conductivity criteria for refractory and insulation materials.	Used to select firebrick and ceramic-fiber insulation suitable for 950 °C and 1340 °C furnaces.
Performance & Uniformity	ASTM E145 — Ovens and Furnaces for Laboratory Use – Temperature Uniformity	Establishes procedure for verifying temperature uniformity within the work zone.	Applied during final testing to confirm ±5 °C uniformity across the chamber.
Quality Management	ISO 9001:2015 — Quality Management Systems – Requirements	Ensures consistent design, manufacturing, testing, and documentation processes.	Implemented throughout EduTech Lahore’s design and production workflow.