La Marzocco Linea PB 4 Group Commercial Espresso Machine
La Marzocco Linea PB 4 Group Commercial Espresso Machine
High-capacity professional 4-group commercial espresso machine with dual boilers, saturated groups, dual PID temperature control, digital controls, and MP, AV, or ABR configuration options.
The La Marzocco Linea PB 4 Group is a professional commercial espresso machine designed for demanding cafés, specialty coffee shops, restaurants, hotels, roasteries, and other high-volume coffee programs. Named in recognition of Piero Bambi, the Linea PB combines La Marzocco's iconic polished stainless steel construction with simplified lines, a lower-profile design, and advanced electronic controls.
The 4-group configuration provides extensive brewing capacity and workspace for demanding service environments with multiple baristas. Separate coffee and steam boilers optimize espresso brewing and steam production, while saturated groups provide exceptional thermal stability from shot to shot. Dual PID controls allow the coffee and steam boiler temperatures to be electronically controlled independently.
A digital display and user-friendly interface give the barista direct control over important machine functions, including boiler temperature, brewing volume, hot water tap dose, auto-backflush, and other programmable parameters. Eco Mode can also be programmed to place the machine into standby to help improve energy efficiency.
The Linea PB 4 Group is available in MP (mechanical paddle), AV (auto-volumetric), and ABR (auto brew ratio with scales) configurations. Each configuration provides a different approach to espresso extraction, allowing operators to select the workflow and level of automation best suited to their coffee program.
Key Features
- Professional 4-group commercial espresso machine
- Available in MP, AV, and ABR configurations
- Four groups provide extensive capacity for high-volume espresso service
- Dual boiler system separates espresso brewing and steam production
- Saturated groups provide exceptional thermal stability
- Dual PID control for coffee and steam boiler temperatures
- Two 3.4 L coffee boilers
- 15 L steam boiler capacity
- Digital display with intuitive programming
- Eco Mode with programmable standby operation
- Insulated boilers help reduce energy consumption and improve temperature stability
- Piero Group Caps on AV and ABR configurations
- Programmable doses on AV and ABR configurations
- Integrated precision scales on ABR configuration
- Conical paddle with progressive flow and pressure control on MP configuration
- USB connectivity allows firmware updates
- La Marzocco Pro App compatible
- ½-turn steam valve requires less movement when steaming milk
- Water sensor measures incoming water conductivity and hardness
- Special-order options include cup warmer, barista lights, personalized colors, and high legs
Available Configurations
| MP – Mechanical Paddle | The mechanical paddle configuration allows the barista to manually control pre-infusion pressure and time during the shot. The barista starts and stops the extraction manually to achieve the preferred coffee volume. |
| AV – Auto-Volumetric | The barista starts the shot and the machine automatically stops extraction based on the pre-programmed volume, helping provide repeatability and consistency during high-volume service. |
| ABR – Auto Brew Ratio with Scales | The barista starts the shot and the machine uses integrated precision scales in the drip tray to stop extraction based on coffee weight, providing an additional level of consistency and control. |
Specifications
| Brand | La Marzocco |
| Model | Linea PB |
| Number of Groups | 4 Groups |
| Available Configurations | MP / AV / ABR |
| Height | 21" (53.3 cm) |
| Width | 47" (119 cm) |
| Depth | 23" (59 cm) |
| Weight | 258 lbs (117 kg) |
| Voltage Options | 200V Single Phase / 220V Single or 3 Phase / 380V 3 Phase |
| Minimum Wattage | 6930W |
| Maximum Wattage | 9470W |
| Coffee Boiler Capacity | 2 × 3.4 L |
| Steam Boiler Capacity | 15 L |
| Boiler System | Dual Boilers |
| Temperature Control | Dual PID – Coffee and Steam |
| Group Design | Saturated Groups |
| Display | Digital Display |
| App Compatibility | La Marzocco Pro App Compatible |
Ideal Use Case
Ideal for very high-volume cafés, specialty coffee shops, restaurants, hotels, roasteries, coffee chains, and other demanding commercial coffee programs that require maximum espresso production capacity. The 4-group configuration provides extensive brewing space for multiple baristas and helps support efficient workflow during peak service periods.
Design & Build
The La Marzocco Linea PB was designed and named in recognition of Piero Bambi and combines performance, reliability, and craftsmanship with the brand's iconic polished stainless steel construction. Its simplified lines and lower-profile design are paired with user-friendly interface software that gives the barista direct control over boiler temperature, brewing volume, hot water tap dose, auto-backflush, and other machine parameters.
The 4-group model measures 47 inches wide, 23 inches deep, and 21 inches high, with a weight of approximately 258 lbs. It features two 3.4-liter coffee boilers and a separate 15-liter steam boiler. The brochure lists a minimum wattage of 6930W and a maximum wattage of 9470W for the 4-group model.
Separate boilers optimize espresso brewing and steam production, while dual PID controls provide electronic control of the coffee and steam boiler temperatures. Insulated boilers help reduce energy consumption while contributing to temperature stability, and saturated groups help maintain consistent temperatures from shot to shot.
The Linea PB also incorporates a ½-turn steam valve that requires less movement from the barista during milk steaming, along with a water sensor that measures the conductivity and hardness of incoming water. The electronic board provides connectivity with the La Marzocco Pro App.
MP vs. AV vs. ABR Configuration
MP – Mechanical Paddle: The MP configuration provides manual extraction control using a conical mechanical paddle. The paddle provides progressive control of water flow and pressure before full brewing pressure is applied, giving the barista greater direct control over the extraction process.
AV – Auto-Volumetric: The AV configuration features programmable doses. The barista starts the extraction and the machine automatically stops based on the programmed volume, helping provide repeatability and consistency in high-volume environments.
ABR – Auto Brew Ratio with Scales: The ABR configuration incorporates precision scales directly into the drip tray. The machine can use coffee weight to control the extraction, providing an additional level of consistency for espresso preparation.
Configuration-Specific Features
| Conical Paddle | MP Only |
| Programmable Doses | AV / ABR |
| Piero Group Caps | AV / ABR |
| Integrated Scales | ABR Only |
Special Order Options
- Cup Warmer – Helps maintain espresso and cappuccino cups at an appropriate serving temperature
- Barista Lights – LED lighting helps illuminate the extraction area and cup
- Personalized Colors – Custom colors available based on the RAL color system
- High Legs – Provides easier access beneath the machine
Why Buy From Omni
- Canadian-based supplier
- Fast shipping across Canada
- Commercial-grade espresso equipment
- Responsive customer support
- Competitive pricing
Frequently Asked Questions
How many groups does this Linea PB have?
This listing is specifically for the 4-group La Marzocco Linea PB.
What configurations are available?
The Linea PB 4 Group is available in MP (mechanical paddle), AV (auto-volumetric), and ABR (auto brew ratio with scales) configurations.
What is the difference between MP, AV, and ABR?
MP provides manual extraction control using a mechanical paddle. AV automatically stops extraction according to a programmed volume, while ABR incorporates integrated scales to provide extraction control based on coffee weight.
Which configuration has integrated scales?
Integrated precision scales in the drip tray are exclusive to the ABR configuration.
Which configurations have programmable doses?
Programmable doses are available on the AV and ABR configurations.
What are Piero Group Caps?
The AV and ABR configurations feature Piero Group Caps with a re-engineered internal water path and flow-meter positioning designed to increase temperature stability.
Does the Linea PB have separate coffee and steam boilers?
Yes. Separate boilers optimize espresso brewing and steam production. The 4-group model has two 3.4-liter coffee boilers and a 15-liter steam boiler.
Does the Linea PB have PID temperature control?
Yes. Dual PID controls allow electronic control of both the coffee and steam boiler temperatures.
What are the dimensions of the 4-group Linea PB?
The machine measures approximately 47 inches wide, 23 inches deep, and 21 inches high.
How much does the 4-group Linea PB weigh?
The 4-group model weighs approximately 258 lbs (117 kg).
What are the electrical options?
The brochure lists 200V single phase, 220V single or 3 phase, and 380V 3 phase. The 4-group model has a minimum wattage of 6930W and a maximum wattage of 9470W.
Does the Linea PB have an energy-saving mode?
Yes. Eco Mode can be programmed to place the machine into standby to help improve energy efficiency.
Is the Linea PB compatible with the La Marzocco Pro App?
Yes. The electronic board allows connectivity with the La Marzocco Pro App.
What special-order options are available?
The brochure lists a cup warmer, barista lights, personalized RAL colors, and high legs as special-order options.
WARRANTY
- Manufacturer's warranty applies
Spec Sheets and Manuals
Shipping information
Please Check our FAQ's For More Information Regarding Shipping.
Returns & warranty
Please Check Our Terms And Conditions for Return and Warranty Information.
