Applications

Heat treating ruby, sapphire, other gems..

Heat treating certain types of ruby, sapphire, other gems

Heat treating certain types of ruby, sapphire, other gems

Heat treating certain types of ruby, sapphire, other gems

Furnace type

Semi-floor type, vertical tube, bottom loading

Bench-top, vertical tube, bottom loading

Desk-top, top loading muffle

Desk-top, Dual use: top loading or box-type

Gas purging

Full atmosphere control module: Dual input gas ports 150 mm flow meters, dual one-way valves, dual gas pressure regulators, dual pressure gauges, dual on-off valves, back-pressure pressure gauge, inlet-outlet cables

Full atmosphere control module: Dual input gas ports 150 mm flow meters, dual one-way valves, dual gas pressure regulators, dual pressure gauges, dual on-off valves, back-pressure pressure gauge, inlet-outlet cables.

Assembly includes: single flowmeter,single pressure gauge, single pressure regulator.

Assembly includes: single flowmeter,single pressure gauge, single pressure regulator.

Purging gases

Air, oxygen, nitrogen, selected mix oxygen-nitrogen, forming gas th/without further mixing with nitrogen; vacuum (standard)

Air, oxygen, nitrogen, selected mix oxygen-nitrogen, forming gas; vacuum (standard)

Purging into the muffle: single gas (air, oxygen, nitrogen) or premixed oxygen-nitrogen, forming gas into muffle.

Purging in the muffe: single gas (air, oxygen, nitrogen) or premixed oxygen-nitrogen, forming gas.

Exhaust

Bubbler assemply and 0-3 psi back pressure gauge

Bubbler assemply and 0-3 psi back pressure gauge

Bubbler assemply and 0-3 psi back pressure gauge

Bubbler assemply and 0-3 psi back pressure gauge

Max. element temperature in air

1800oC-grade MoSi2 elements 1820oC-grade MoSi2 elements

1800oC-grade MoSi2 elements 1820oC-grade MoSi2 elements

Nickel-Chrome wire 1300oC

Nickel-Chrome wire 1300oC

Max. operating temperature

1700oC (1800-grade elements) 1720oC (1820-grade elements)

1700oC (1800-grade elements) 1720oC (1820-grade elements)

1100oC

1100oC

Max. operating temperature in vacuum

1500oC

1500oC

1100oC

1100oC

Construction (shell)

Double steel shell with dual cooling fans

Double steel shell with dual cooling fans

Double steel shell with single cooling fans

Double steel shell with single cooling fans

Heating chamber

octagon- shape

hexagonal-shape

cylindrical

box

Insulation (heating chamber)

1900-grade hot-face

1900-grade hot-face

1400oC-grade hot-face

1400oC-grade hot-face

Muffle tube (99.6% alumina)

Half-muffle: Close One End tube (OD=80 mm, L=280 mm)

Ceramic Half-muffle: Close One End tube (OD=50 mm, L=280 mm)

Half-muffle: Close One End tube (OD=80 mm, L=240 mm)

Ceramic Half-muffle: Close One End tube (OD=50 mm, L=240 mm)

Muffle flange assembly

One set composed of 3-parts: aluminum water-cooled flanges, 2 pcs O-rings

One set composed of 3-parts: aluminum water-cooled flanges, 2 pcs O-rings

One set composed of 3-parts: aluminum flanges, 2 pcs O-rings

One set composed of 3-parts: aluminum flanges, 2 pcs O-rings

Loading mode

Electric elevator with Up-Down buttons

Manual elevator

Manual top loading

DUAL MODE: for muffle loading: manual top loading. No muffle loading: front door

Loading capacity (Ruby-sapphire, avg. weight for each stone is ~0.40 ct)

With muffle: 1 crucible, max. OD=68 mm, H=100 mm, V=210 cc net ( ~3,100 carats)

With muffle: 1 crucible max. OD=40 mm, H=100 mm, V=80 cc net, (~1,000 carats)

1 crucible, max.OD=68 mm, H=100 mm, V=210 cc net ( ~3,100 carats)

With muffle: 1 crucible, max.OD=40 mm, H=100 mm, V=90 cc net, (~1,000 carats) No muffle: as many crucibles c an fit nin 100 x100 x100 cm heating chamber

Main temperature programmer-controller

Single program, auto tune, 51-segment artificial intelligence temperature programmer-controller

Single program, auto tune 51-segment artificial intelligence temperature programmer-controller

Single program, auto tune 51-segment artificial intelligence temperature programmer-controller

Single program, auto tune 51-segment artificial intelligence temperature programmer-controller

Temperature Limit controller

Single temperature st point alarm

Not available

Not available

Not available

Water cooling re circulator

Not available

Not available

Not available

Not available

Vacuum package

High quality 2-stage vacuum pump with solenoid valve, vacuum gauge, hose and related fittings.

High quality 2-stage vacuum pump with solenoid valve, vacuum gauge, hose and related fittings.

High quality 2-stage vacuum pump with solenoid valve, vacuum gauge, hose and related fittings.

High quality 2-stage vacuum pump with solenoid valve, vacuum gauge, hose and related fittings.

Temperature sensor

B-type thermocouple ( 2 sets)

B-type thermocouple (1 sets)

K-type thermocouple (1 set)

K-type thermocouple (1 set)

Power management

Eurotherm SCR (Silicon Control Rectifier)

Eurotherm SCR (Silicon Control Rectifier)

SCR (Silicon Control Rectifier)

SCR (Silicon Control Rectifier)

Instruments control

Main breaker, OUT analog ammeter, OUT analog voltmeter, IN digital voltmeter, ON-OFF run heater switch, RUN pilot light, alarm buzzer, emergency STOP button, hourmeter.

Main breaker, OUT analog ammeter, OUT analog voltmeter, IN digital voltmeter, ON-OFF run heater switch, RUN pilot light, alarm buzzer, emergency STOP button

Main input port, OUT analog ammeter, OUT analog voltmeter, ON-OFF run heater switch, RUN pilot light, alarm buzzer, emergency STOP button.

Main input port, OUT analog ammeter, OUT analog voltmeter, ON-OFF run heater switch, RUN pilot light, alarm buzzer, emergency STOP button.

Fuses

SCR (fast acting); instruments (slow acting)

SCR (fast acting); instruments (slow acting)

SCR (fast acting); instruments (slow acting)

SCR (fast acting); instruments (slow acting)

Rated Power

2.6 KVA

2.0KVA

1.2 KVA

0.75 KVA

Power Consumption

About 1600 watts (avg. value) needed to maintain furnace temperature at 1700oC with muffle

About 1250 watts (avg.value) needed to maintain furnace temperature at 1700oC with muffle

Less than 700 watts needed to maintain furnace temperature at 1100oC with muffle

Less than 600 watts needed to maintain furnace temperature at 1100oC with muffle

Main power

208-230 Vac, 20 A, 1-phase

208-230 Vac, 15 A, 1-phase

208-230 Vac, 10 A, 1-phase

208-230 Vac, 10 A, 1-phase

Overall dimensions

400 (D )x 480 (W ) x 1100 (H) mm

360 (D) x 360 (W) x 900 (H) mm

360 (D) x 360 (W) x560 (H) mm

240 (D) x 250 (W) x 350 (H) mm

Net weight (installed)

135 Kgs

115 Kgs

25Kgs

20 kg