High Performance Muffle Furnace 7.5L Overview
The High Performance Muffle Furnace 7.5L (model FP303) is a microprocessor-controlled muffle furnace from Yamato Scientific, available through LabSupplies.com as an authorized dealer. Its 7.5-liter chamber operates from 100 to 1150°C with ±1.0°C accuracy, supporting ashing, sintering, and heat-treatment work. Repeatable results come from a high-accuracy PID controller built for clear operability and visibility.
An alumina porcelain hot plate keeps the iron-chrome heater out of the chamber, preventing sample contamination. Ceramic fiber insulation lines the furnace body and door, while a firmly sealed chamber door delivers excellent heat tightness. Exterior panels use cold-rolled steel finished with baked melamine resin, and upgraded R-thermocouple sensors extend service life over standard sensors.
Programmable operation covers up to 99 steps and 99 patterns with a repeat function. Safety devices include self-diagnostics, key lock, independent overheat prevention, and an electric leakage breaker. The unit ships from Japan, weighs 174 lbs, and carries ISO 9001:2015 and ISO 14001:2015 certification. Voltage options cover 115V and 220V.
Key Features
- High temperature accuracy: microprocessor PID control holds ±1.0°C at 1150°C for repeatable runs.
- Contamination-resistant heating: alumina porcelain hot plate shields the iron-chrome heater from the chamber, protecting samples.
- Long-life sensing: upgraded R-thermocouple sensors improve durability and measurement stability.
- Program operation: up to 99 steps across 99 patterns with a repeat-operation function for multi-stage profiles.
- Sealed chamber: firmly sealed door provides excellent heat tightness across the 100 to 1150°C range.
- Integrated safety: self-diagnostics, key lock, independent overheat prevention, and electric leakage breaker.
How to Choose the Right Muffle Furnace
Selecting a muffle furnace starts with matching chamber size, temperature ceiling, and control type to your workflow. Use the criteria below to confirm the FP303 fits your ashing, sintering, or heat-treatment application.
- Capacity: the 7.5 L chamber (200 × 250 × 150 mm interior) sets how many crucibles or samples you can process per batch.
- Temperature range: a 100 to 1150°C span covers most ashing and high-temperature laboratory work; verify your process stays inside it.
- Control type: microprocessor PID with ±1.0°C accuracy and 99-step programming suits multi-stage profiles that fixed-setpoint units cannot run.
- Voltage: confirm your site supplies 115V or 220V to match the model you order; the 2.4 kW heater requires an adequate dedicated circuit.
- Footprint and weight: at 174 lbs and a 36 × 36 × 35 in shipping size, plan bench space and handling before delivery.
- Safety devices: independent overheat prevention, key lock, and an electric leakage breaker matter for unattended high-temperature runs.
Specifications
| Specification | Detail |
|---|---|
| Capacity | 7.5 L |
| Voltage | 115V |
| Operating Temperature Range | 100 to 1150°C *1 |
| Temperature Accuracy | ±1.0°C (at 1150°C) *2 |
| Temperature Distribution | ±4.0°C (at 1150°C) *2 |
| Temperature Gradient | 14°C (at 1150°C) |
| Temperature Control System | PID control by microprocessor |
| Sensor | R-thermocouple |
| Interior Material | Alumina fiber |
| Exterior Material | Cold-rolled steel plate with baked melamine resin finish |
| Operation Function | Fixed temperature, quick auto stop, auto start/stop, program (up to 99 steps / 99 patterns) |
| Safety Devices | Self-diagnostic (sensor error, heater disconnection, triac short-circuit, main relay failure, automatic overheat prevention); key lock; independent overheat prevention; electric leakage breaker |
| Heater | Iron-chrome wire, 2.4 kW |
| Internal Dimensions | 200 × 250 × 150 mm |
| Material | Steel plate, melamine, epoxy composite resin paint, stainless steel (main unit) Ceramic fiber (furnace body, door furnace body) |
| Country of Origin | Japan |
| GTIN (Barcode) | 797059930753 |
| Shipping Weight | 174 lbs |
| Dimensions (L × W × H) | 36 × 36 × 35 in |
| Component Size | 7.5 L |
*1 No-load operation of bath only; maximum temperature varies with circumstances and operating conditions. *2 Measured under ambient temperature 23°C ±5°C, humidity 65%RH ±20%, per Yamato Scientific test conditions.
Available Sizes and Configurations
| SKU | Configuration | Pack |
|---|---|---|
| FP-303 | 115V | EA |
| FP-313 | 220V | EA |
Documentation
More in This Series
- High Performance Muffle Furnace 1.5L
- High Performance Muffle Furnace 11.3L
- Muffle Furnace With Communication Port 30L
- Muffle Furnace With Communication Port 23.6L
- Muffle Furnace With Communication Port 17.5L
- Muffle Furnace With Communication Port 11.3L
View all Laboratory Muffle Furnaces →
Why Buy From LabSupplies.com
Order the FP303 muffle furnace directly from LabSupplies.com and receive a genuine Yamato Scientific unit backed by manufacturer support. Our lab-equipment specialists can answer spec and configuration questions before you place the order.
- Authorized Yamato Scientific dealer: genuine equipment with full manufacturer warranty.
- In stock: ready to order without waiting on backorder cycles.
- Ships from USA inventory: domestic fulfillment for faster delivery.
- Specialist support: dedicated lab-equipment team for technical and spec questions.
Frequently Asked Questions
What is the temperature range of the FP303 muffle furnace?
The FP303 operates from 100 to 1150°C. It holds ±1.0°C temperature accuracy at 1150°C using microprocessor PID control, with a temperature distribution of ±4.0°C and a gradient of 14°C at that ceiling.
How large is the chamber and what are the interior dimensions?
The chamber capacity is 7.5 liters, with interior dimensions of 200 × 250 × 150 mm. This sizing determines how many crucibles or samples you can process per batch.
What voltage options are available?
Two voltage options are offered: model FP303 runs on 115V and model FP313 runs on 220V. Both share identical performance and features; only the input voltage differs. The unit uses a 2.4 kW iron-chrome heater.
How does the FP303 protect samples from contamination?
A high-quality alumina porcelain hot plate keeps the iron-chrome heater from being exposed to the inner chamber, preventing sample contamination. Ceramic fiber lines the furnace body and door for insulation and heat tightness.
What safety features are included?
Safety devices include self-diagnostic functions covering sensor error, heater disconnection, triac short-circuit, main relay failure, and automatic overheat prevention. Additional protection includes a key lock, independent overheat prevention, and an electric leakage breaker.
Can the FP303 run multi-stage temperature programs?
Yes. The microprocessor controller supports program operation of up to 99 steps across 99 patterns, plus a repeat-operation function. It also offers fixed-temperature, quick auto stop, and auto start/stop modes.
