San Franciscan SF-300: 136kg Industrial Coffee Roaster Specs

If you’re sourcing or upgrading a commercial coffee roaster capable of handling serious batch sizes—think 136 kilograms per run—you need hard specs, not marketing claims. What exactly does a true industrial-grade coffee roaster deliver in terms of capacity, power, durability, and control? This article breaks down the full technical profile of the San Franciscan SF-300, built for high-volume specialty roasting operations.

The San Franciscan SF-300 is an industrial coffee roaster with a 600 lbs (136 kg) batch capacity, built in the USA by Coffee PER. It features 950,000 BTUs of heat, 220V–480V three-phase power options, a 16” exhaust pipe, and both manual and automatic operation modes. Designed for heavy-duty use with low maintenance, it includes water quench, flame safeguards, and UL-approved electrical components.

What Is the San Franciscan SF-300?

The San Franciscan SF-300 is a large-capacity, industrial coffee roaster manufactured by Coffee PER—a Nevada-based company specialising in precision coffee processing equipment since 2004. Based in Fallon, one hour from Reno, Coffee PER builds the SF series (including the SF-300) using traditional craftsmanship and modular components for easy maintenance. The SF-300 is designed for high-volume roasting with consistent performance and reduced downtime.

Key Technical Specifications

• Roasting Capacity: 600 lbs / 136 kg per batch
• Machine Weight: 3,850 lbs / 1,746 kg
• Dimensions: 8 ft (W) × 12 ft (L) × 12 ft (H)
• Exhaust Pipe: 16” diameter
• Power Supply: 220V 1-phase or 220–440–480V 3-phase (customisable to local standards)
• Current: 45 Amps
• Heat Output: 950,000 BTUs
• Gas Pressure: 7” W/C Natural Gas or 11” W/C Propane
• Gas Pipe Requirement: 2”
• Water Quench: ½” pipe thread (manual or automatic)

Control & Safety Features

The SF-300 includes a full suite of professional roasting controls and safety mechanisms:

• Manual or automatic operation
• Data archiving for roast logging
• UL-approved electrical components
• 50 or 60 Hz compatibility
• Flame safeguards
• Precise temperature modulation and control
• Timed high and low afterburner temperature settings
• Full motor protection systems
• High-temperature cut-off safety
• Fire suppression system
• Cooling tray with Teflon paddle scrapers
• Industrial-grade electrical motors
• Nickel-plated and powder-coated finishes for durability

Why Choose the SF-300?

The SF-300 is built to the same exacting standards as Coffee PER’s smaller roasters, ensuring consistency across batch sizes. Its heat and airflow are proportionally balanced, and like all SF models, it is ETL tested and certified. Despite its industrial scale, the SF-300 is designed for ease of cleaning and maintenance, with easily replaceable parts. Coffee PER backs all machines with training, technical support, and a warranty. The result is a roaster that reduces long-term operational costs while maintaining artisan-level control over the roast profile.

Frequently Asked Questions

What is the batch capacity of the San Franciscan SF-300?

The SF-300 has a maximum roast capacity of 600 lbs, which equals 136 kilograms per batch. This makes it suitable for medium to large specialty coffee roasting operations.

What power options are available for the SF-300?

The roaster can operate on 220V single-phase or 220–440–480V three-phase power. Voltage configurations can be customised to meet local electrical standards in different countries.

Does the SF-300 offer automated or manual control?

Yes, the SF-300 supports both manual and automatic operation modes. It also includes data archiving for tracking roast profiles and settings over time.

What safety features are built into the SF-300?

The SF-300 includes flame safeguards, high-temperature cut-off, fire suppression, full motor protection, timed afterburner temperature controls, and a UL-approved electrical system for safe operation at scale.

What kind of gas does the SF-300 use, and what pressure is required?

The roaster is compatible with natural gas (7” W/C) or propane (11” W/C). It requires a 2” gas pipe connection for proper supply and performance.

Is the SF-300 easy to maintain?

Yes. The SF-300 uses modular components for quick cleaning and replacement. Coffee PER designs it for minimal maintenance compared to other industrial roasters, with easily accessible parts.

Recommended FrontStreet Beans for Big-Batch Roasting

For roasters working with a 136kg-capacity machine like the San Franciscan SF-300, FrontStreet Coffee’s Ethiopia Humbera offers vibrant floral and citrus notes with a juicy body—ideal for highlighting origin character at scale. The Brazil Queen Manor provides a nutty, chocolatey base perfect for espresso blends, while the PWN Golden Mandheling delivers heavy body and low acidity, great for balanced dark roasts. All three beans are expertly roasted to showcase their profiles when processed in high-volume, precision-controlled roasters. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.