Lab Scale 1200C Box Furnace with Vacuum and Atmosphere Control

Sales Manager: Gia

Wechat: Dingqiuna

Item No.:
TMAX-GWL-ZQLB
Payment:
L/C, T/T, Western Union, Credit Cards, Paypal
Shipping port:
Xiamen Port
Lead Time:
5 Days
Certificate:
CE, IOS, ROHS, SGS, UL Certificate
Warranty:
Two years limited warranty with lifetime technical support

Product Details

Lab Scale 1200C Box Furnace with Vacuum and Atmosphere Control

Introduction

As shown in the diagram, the GWL-ZQLB series vacuum atmosphere box furnace integrates temperature control system, vacuum chamber, vacuum pump, gas circuit, pressure protection, gas flow control, positive/negative pressure display, and water circulation pump. The water circulation tank and furnace body are integrated. The furnace lining is made of vacuum-formed high-purity alumina lightweight material.

It uses electric heating elements as heat sources. It is a special device designed for laboratories in universities, research institutes, and industrial enterprises for sintering, melting, analysis, and production of ceramics, metallurgy, electronics, glass, chemicals, machinery, refractory materials, new materials, special materials, building materials, metals, nonmetals, and other compounds.

The control panel is equipped with an intelligent temperature controller, power switch, main heating start/stop button, voltmeter, ammeter, computer interface, water pump switch, vacuum pump switch, gas flow meter, positive/negative pressure gauge, electric contact pressure gauge, and valves for real-time monitoring. The furnace adopts reliable integrated circuits with good anti-interference performance. The furnace shell temperature during operation is ≤40°C, greatly improving the working environment. It features microcomputer program control, programmable temperature curves, automatic heating/cooling, and editable parameters during operation, making it flexible and easy to operate.

Temperature control accuracy: ±1°C (no overshoot); constant temperature accuracy: ±5°C. Fast heating rate, maximum ≤45°C/min.

The furnace chamber uses vacuum-formed alumina lightweight material, featuring high working temperature, low heat storage, thermal shock resistance, no cracking, no slagging, and excellent thermal insulation. With a rational double-layer air-cooled structure, the test cycle is greatly shortened.

Technical Specifications

Item	900℃
Maximum working temperature	1200℃
Normal working temperature	900℃ (adjustable)
AC Voltage	3-phase 380V, 50-60Hz
Heating element	Silicon carbide rod
Heating element position	Both sides of chamber
Thermocouple & measuring range	Ni-Cr/Ni-Si K type, 0-1350℃
Programmable segments	1 group: 50 segments; 2 groups: 22 segments each; 3 groups: 8 segments each (adjustable)
Heating rate	1℃/h to 20℃/min (adjustable)
Furnace door height	1000 mm from ground
Vacuum range	100 Pa to 10⁻¹ Pa
Micro positive pressure	Within 10 kPa; vacuum pumping ≤ 30 min; PID adjustable; electronic pressure gauge
Heating zones	3-zone design
Furnace body	CNC machined, polished, pickled, phosphated, plastic sprayed, high-temperature baked; two-tone, oxidation-resistant, acid/alkali-resistant, corrosion-resistant, high-temp resistant, easy to clean
Structure	Double-layer air-cooled furnace body
Door opening	180° side opening
Water cooling	Furnace mouth, door, roof; 1-inch water pipe connector
Vacuum pump	Two-stage direct rotary vane pump, 60 m³/h; 3-inch furnace port
Vacuum display	Analog pressure gauge (-0.1 MPa) + digital positive/negative pressure gauge
Pressure resistance	6-20 mm steel plate, double-sided welded; positive pressure resistant to 0.1 MPa
Gas valves	Stainless steel
Pressure detection	1 analog positive/negative pressure gauge (digital vacuum gauge optional)
Gas flow meters	2 float flow meters
Pressure protection	Electric contact pressure gauge / sensor triggers control module: closes intake valve, opens exhaust valve, activates audible-visual alarm to release overpressure
Gas leakage alarm	Detects toxic/hazardous gases; triggers shutdown, closes gas supply, opens ventilation (optional)
Applicable atmospheres	H₂, N₂, Ar, CO, O₂, etc.
Refractory material	Vacuum-formed alumina fiber lightweight board; furnace bottom: lightweight hollow sphere alumina board
Insulation	4 layers: alumina fiber blanket, fiber board, polycrystalline fiber board, vacuum-formed lightweight board
Furnace shell temperature	≤45°C (continuous long-term operation)
Protection system	Integrated module, dual-circuit control & protection: overshoot, over-temp, over/under voltage, over current, phase loss, broken thermocouple, current feedback, soft start
Control mode	Closed-loop SCR phase-shift trigger; constant voltage/current/power; current inner loop + voltage outer loop
Display parameters	Temperature, segment No., time, remaining time, power %, voltage, current
Temperature curve control	Intelligent controller with PID/APID/MPT, auto-tuning, self-learning, 30-segment (50-segment optional) programming, smooth curve fitting
Multi-curve program	30/50 segments total; assignable to 1/2/3/5 curves; storable and callable
Communication	RS485 (up to 1700 m); PC control: start/pause/stop, curve setting, data recording, history curve/report (1 s-1 h interval, long-term storage)
Standard accessories	1 crucible tongs, 1 pair high-temperature gloves
Warranty	1-year free warranty; heating elements not covered (free replacement if naturally damaged within 3 months)
Notes	1. Recommended heating/cooling rate: 10-20℃/min (too fast shortens element life)2. Small chamber cracks are normal; repairable with alumina coating3. Avoid high-temperature liquid spillage on bottom; use backing plate or alumina powder4. Install in well-ventilated, dry area
Packing list	1 furnace, 1 door insulation plug (for ≥1700℃ furnaces), 1 crucible tongs, 1 pair high-temp gloves, manual, certificate, delivery note