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Linwen Instruments Co., Ltd.

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BrandLAC
OriginCzech Republic
ModelS-Series
Max Temperature200 °C / 300 °C (selectable by variant)
Chamber Volume60–380 L
External Dimensions (W×H×D)1050×1350×950 mm to 1400×1750×1200 mm
Internal Dimensions (W×H×D)450×300×450 mm to 800×800×600 mm
Power Input2–6 kW
Voltage230 V or 380 V (3-phase)
Weight60–350 kg
Air CirculationHorizontal forced convection via side-mounted axial fan (S60/S100) or central radial fan (S250/S400)
Temperature ControlINDUSTRY PID programmable controller with 30 stored profiles (15 steps each), real-time clock, RS485/RS232 interface option
SafetyDoor-mounted safety switch, K-type thermocouple, semiconductor non-contact SSR relay, independent current-limiting unit
ConstructionMild steel frame & outer casing
VentilationManually adjustable damper with bottom exhaust
ComplianceDesigned to meet DIN 17052-1 Class A uniformity requirements for laboratory ovens
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BrandLAC
OriginCzech Republic
ModelPK Series
Max Temperature1280 °C
Chamber Volume10–40 L
External Dimensions (W×H×D)700×700×790 mm to 1100×1440×1900 mm
Internal Dimensions (W×H×D)230×200×350 mm to 290×250×550 mm
Power Input3–11 kW
Weight60–320 kg
Voltage230 V or 400 V (3-phase)
Heating ConfigurationDual-zone (side + bottom)
Temperature UniformityCompliant with DIN 17052-1 Class A
Control SystemINDUSTRY PID Controller with 30 programmable profiles (15 steps each), real-time clock, non-contact semiconductor relay
ThermocoupleType S (Platinum/Rhodium)
InsulationLightweight refractory brick
Structural FrameLow-carbon steel
DoorManually operated, safety interlock switch
Optional AtmosphereSemi-sealed design compatible with protective gas kits
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BrandLAC (Czech Republic)
ModelKC Series
TypeBox-Type Muffle Furnace
Max Temp1300 °C / 1400 °C
Chamber Volume20–120 L
Power8–18 kW
Voltage380 V AC, 3-phase
External Dimensions (W×H×D)760×1250×850 mm to 1080×1480×1120 mm
Internal Dimensions (W×H×D)270×270×270 mm to 500×500×500 mm
Insulation Thickness30–40 mm mineral fiber + firebrick lining
Heating ElementKanthal A1 wire wound on ceramic tubes, mounted on refractory brick supports, distributed across five surfaces (four walls + floor)
Temperature SensorType S thermocouple
ControllerCERAMIC programmable controller (20 programs × 15 segments), real-time clock, SSR output
SafetyDoor-mounted interlock switch, overpressure relief valve (optional), independent thermal cut-off unit
ComplianceDesigned for GLP-compliant thermal processing
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OriginImported
Manufacturer TypeAuthorized Distributor
ModelKR-30/12
Max Temp1200 °C
Chamber Volume3 L
External Dimensions (W×H×D)1100×1600×2100 mm
Internal Dimensions (W×H×D)310×310×310 mm
Power Rating3.5 kW
Net Weight155 kg
Voltage230 V AC, Single-phase
Temperature ControlProgrammable PID via INDUSTRY controller with real-time clock
Programs30 stored profiles, up to 15 segments per program
Thermocouple TypeS-type (Pt/Pt–10% Rh)
Heating ElementEmbedded resistance wire in refractory grooves
InsulationLightweight firebrick + ceramic fiber + calcium silicate board
Evaporator DrivePLC-controlled rotary–translational mechanism
Optional AccessoriesHT-100 multi-point temperature monitor (10 channels), RS232/RS485 interface, PC-based cycle logging software
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BrandLAC
ModelLH Series
Temperature RangeUp to 1340 °C
Internal Volume6–30 L
Power Supply230 V AC, Single-Phase
Control SystemHT40A Programmable Temperature Controller
Heating ElementKanthal A1 Wire Wound on Mullite Tubes
ThermocoupleType S (Platinum/Rhodium), Rear-Mounted
InsulationHigh-Density Refractory Ceramic Fiber
Door MechanismSpring-Loaded Top-Hinged with Safety Interlock
CoolingIntegrated Axial Fan for Rapid Cool-Down
ComplianceDesigned for GLP-compliant thermal processing in non-corrosive atmospheres
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BrandLAC
OriginCzech Republic
TypeBox Furnace
Heating MethodElectric Resistance
Max Temperature650 °C or 850 °C (model-dependent)
Chamber Volume20–70 L
Internal Dimensions300×200×350 mm to 350×400×500 mm
External Dimensions800×650×1050 mm to 950×1550×1150 mm
Power Input3.0–9.0 kW
Voltage230 V or 380 V (3-phase)
Weight115–200 kg
Gas CirculationHorizontal axial fan (rear-mounted)
InsulationHigh-density ceramic fiber
Heating ElementsSide-mounted FeCrAl alloy wire
Temperature ControlINDUSTRY PID programmable controller (30 programs × 15 segments, real-time clock, ramp/soak functionality)
SensorK-type thermocouple
Output SwitchingSolid-state non-contact relay
ComplianceDIN 17052-1 (temperature uniformity class), CE-marked
Standard FeaturesStainless steel chamber & casing, mechanical latch door with safety interlock, manual damper, adjustable shelf, base stand
OptionalPC interface (RS485/USB), chart recorder, inert atmosphere kit, semi-hermetic design, motorized damper, left/up-swing door, single-hand door operation, overpressure cooling system
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BrandLAC
OriginCzech Republic
ModelLMH Series
Max Temperature1200 °C
Chamber Volume4–11 L
External Dimensions (W×H×D)490×540×720 mm to 570×540×720 mm
Internal Dimensions (W×H×D)170×90×275 mm to 255×165×255 mm
Power Rating3–3.5 kW
Weight43–53 kg
Voltage230 V AC
Temperature ControlHT40 Programmable Controller with S-type Thermocouple
Heating ElementKanthal A1 wire wound on mullite tubes
InsulationMullite fiber + mineral granulate fill
Safety FeaturesInterlocked door switch, tempered blue safety viewing window, spring-assisted counterbalanced door
CoolingIntegrated axial cooling fan
ComplianceDesigned for GLP-compliant thermal processing in analytical and materials labs
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BrandOrton
OriginUSA
Equipment TypeHorizontal Tube Furnace
ModelGTF-MD Series
Maximum Temperature1600 °C
Gradient Zone Length12 in (300 mm) or 16 in (405 mm)
Gradient Options10 °C/in or 20 °C/in
Corresponding ΔT Across Gradient Zone120 °C, 160 °C, 240 °C, or 320 °C
ComplianceASTM C829A & C829B
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BrandLAC
OriginCzech Republic
ModelL-Series (L 03/12, L 05/12, L 09/12, L 15/12)
Max Temperature1200 °C
Internal Volume3–15 L
Power1.2–3.5 kW
Voltage230 V AC
Weight21–39 kg
External Dimensions (W×H×D)380×440×400 mm to 450×505×600 mm
Internal Dimensions (W×H×D)180×100×140 mm to 250×170×340 mm
Temperature ControllerHT40A or INDUSTRY-series programmable controller
Heating ElementEmbedded resistance wire in refractory insulation
SafetyDoor-mounted interlock switch, no open flame
ComplianceDesigned for GLP-compliant thermal processing in R&D and QC labs
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BrandOxford Instruments
OriginUnited Kingdom
ModelOptistat Dry BL4 3K
Cooling Base Temperature<3 K
Operating Temperature Range<3 K to 300 K
Optical Numerical Aperturef/1
Sample Vibration Amplitude<10 µm
Vacuum SystemOil-Free Mechanical Pump Compatible (with Activated Carbon Getter)
Sample ExchangeSide-Access Port with Quick-Release Mechanism
Optional FeaturesLow-Vibration Mounting Stand, Rotatable Sample Stage (±5°), Electrical Feedthroughs, Interchangeable Optical Windows (CaF₂, Si, Quartz, Sapphire)
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BrandLAC (Czech Republic)
ModelPKR & PKRC Series
Max Operating Temperature1100 °C (PKR) / 900 °C (PKRC)
Chamber Volume24–230 L
External Dimensions (W×H×D)290×250×550 to 1800×1750×2350 mm
Internal Dimensions (W×H×D)350×1100×1310 mm (max)
Power Rating11–50 kW
Weight400–1380 kg
Voltage380 V AC, 3-phase
Heating ElementSiC-sheathed resistance wire (side & bottom), ceramic tube-wound
Atmosphere ControlSealed chamber with inert gas (N₂, Ar, synthetic gas) inlet, water-cooled stainless steel flange, silicone rubber door seal, overpressure relief port
Thermal InsulationLightweight refractory brick
Temperature ControlINDUSTRY PID programmable controller (30 stored programs, 15 segments each, real-time clock, ramp/soak functionality)
SensorType S thermocouple
Power SwitchingSolid-state non-contact relay
ComplianceDesigned per DIN 17052-1 Class A temperature uniformity requirements
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KeyBrand: LAC
ModelVP Series
Max Temperature1600–1700 °C
Chamber Volume2–70 L
Power Supply230 V or 380 V AC
Heating ElementKanthal Super
Thermocouple TypeB- and S-type
Control SystemINDUSTRY PID Programmable Controller (30 programs × 15 steps, real-time clock)
CoolingIntegrated axial fan
SafetyDoor-mounted safety interlock switch
ComplianceCE-marked, designed for GLP-compliant thermal processing environments
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