Lubricated Rotary Screw Compressors 45 - 55 kW FourCore

Gardner Denver FourCore Oil-Injected Screw Compressors 45-55 kW — Innovative Technologies for Your Production

FourCore screw compressors by Gardner Denver with power of 45-55 kW represent a new generation of industrial compressor equipment created using revolutionary FourCore technology. This series combines four key advantages: maximum energy efficiency, exceptional reliability, intelligent control and minimum total cost of ownership.

If you are looking for where to buy a FourCore compressor for your enterprise, you will receive equipment that outperforms competitors in all key indicators. Oil-injected screw compressors of the FourCore 45-55 kW series are ideal for medium-sized productions, large auto services, woodworking enterprises and other industries with stable compressed air consumption.

What is FourCore Technology

FourCore technology is Gardner Denver's proprietary development based on four fundamental principles of compressor equipment design:

Core 1: Efficiency

The first core of FourCore technology ensures maximum energy efficiency through:

• Optimized screw pair profile with minimum clearances
• IE4 Super Premium energy efficiency class electric motors
• Improved oil injection system
• Intelligent load control algorithm

An energy efficient compressor FourCore consumes 12-18% less electricity compared to previous generations of equipment.

Core 2: Reliability

The second core guarantees trouble-free equipment operation:

• Airend with lifespan over 100,000 hours
• Extended life bearings
• Enhanced cooling system
• Multi-level protection against emergencies

Core 3: Intelligence

The third core is an intelligent control system:

• New generation touch controller
• Predictive maintenance based on data analysis
• Remote monitoring through cloud platform
• Automatic optimization of operating modes

Core 4: Economy

The fourth core ensures minimum total cost of ownership:

• Extended maintenance intervals
• Quick access to all components for service
• Unified spare parts
• Low operating costs

FourCore 45-55 kW Compressor Model Range

Gardner Denver FourCore 45 kW Compressor

The Gardner Denver 45 kW compressor of the FourCore series is the optimal solution for enterprises with moderate air consumption:

• Motor power: 45 kW
• Capacity: up to 7.8 m³/min
• Working pressure: 7.5 / 8.5 / 10 / 13 bar
• Noise level: 68 dB(A)
• Dimensions: 1500 × 1100 × 1650 mm
• Weight: from 850 kg

The 45 kW screw compressor FourCore ensures stable operation of metalworking shops, furniture productions, printing houses and other medium-sized enterprises.

Gardner Denver FourCore 55 kW Compressor

The Gardner Denver 55 kW compressor is a more productive model for intensive consumption:

• Motor power: 55 kW
• Capacity: up to 9.5 m³/min
• Working pressure: 7.5 / 8.5 / 10 / 13 bar
• Noise level: 69 dB(A)
• Dimensions: 1600 × 1150 × 1700 mm
• Weight: from 950 kg

The 55 kW screw compressor FourCore is designed for large production lines, automotive enterprises, food processing plants.

Design Features of FourCore Series

Premium Class Airend

The heart of every FourCore compressor is Gardner Denver's in-house manufactured airend:

• Asymmetric 5:6 rotor profile for maximum efficiency
• Precision machining with tolerances up to 5 microns
• High-strength SKF or FAG bearings
• Special rotor coating for reduced friction
• Lifespan without major overhaul — over 100,000 hours

IE4 Super Premium Electric Motor

Medium power industrial compressors FourCore are equipped with the most advanced motors:

• IE4 energy efficiency class (highest standard)
• Energy savings up to 5% compared to IE3
• Enhanced Class F winding insulation
• Extended life bearings
• IP55 protection against dust and moisture

Intelligent Controller

FourCore compressors are equipped with a new generation controller with touch screen:

• 7-inch color display
• Intuitive interface in multiple languages
• Real-time consumption and pressure graphs
• Event log and parameter history
• Built-in web server for remote access
• Support for Modbus, Profibus, Profinet protocols

Efficient Cooling System

A powerful cooling system ensures stable operation even in difficult conditions:

• Large combined air-oil radiator
• Thermostatic valve for quick warm-up
• Variable speed fan
• Water cooling option for temperatures above +40°C

Multi-Stage Oil Separation

The oil separation system in FourCore compressors provides:

• Residual oil content less than 3 mg/m³
• Three separation stages for maximum efficiency
• Automatic condensate drainage
• Long separator service life

FourCore Variable Speed Drive Compressors (VSD)

Variable Speed Technology

The VSD variable speed compressor FourCore automatically adjusts capacity according to actual air consumption. This is the ideal solution for enterprises with variable loads.

VSD Version Advantages

• Energy savings up to 35% with variable load
• Stable pressure in the network with accuracy of ±0.1 bar
• Soft start without starting currents and network load
• Extended lifespan due to operation at optimal speeds
• Less wear on valves and loading mechanisms

ROI on VSD Investment

At 55 kW power and 6000 operating hours per year, a VSD compressor can save up to 80,000 kWh of electricity annually. This means return on additional investment in 18-24 months.

Application Areas of 45-55 kW Compressors

Metalworking and Mechanical Engineering

FourCore screw compressors provide reliable power for CNC machines, laser cutters, pneumatic presses and automation systems. Stable pressure is critical for machining accuracy.

Woodworking and Furniture Production

Panel saws, edge banding machines, aspiration systems require a powerful source of compressed air. A 45 kW or 55 kW FourCore compressor fully covers the needs of a medium-sized furniture enterprise.

Automotive Industry and Large Service Stations

Large auto services and dealer centers need reliable compressor equipment for paint booths, tire fitting, body repair. Medium power industrial compressors FourCore are the optimal choice.

Food Industry

When using an appropriate air treatment system, FourCore compressors are used for packaging, pneumatic transport, technological equipment drives.

Pharmaceuticals and Cosmetics

Medicine and cosmetics production requires a stable source of clean air. Gardner Denver compressors with filtration system provide the necessary quality.

Printing Industry

Printing machines and post-press equipment run on compressed air. Reliability and stable pressure are key requirements that the FourCore series meets.

Configuration and Additional Options

Standard Configuration

• Gardner Denver airend
• IE4 Super Premium electric motor
• New generation touch controller
• High-efficiency oil separator
• Air and oil filters
• Combined cooling radiator
• Sound-insulated housing
• Electrical panel

Additional Options

• VSD variable speed drive — smooth adjustment 25-100%
• Built-in refrigerant dryer — dew point +3°C
• Heat recovery system — for heating or hot water supply
• High-class filter kit — for air purity up to class 1.2.1
• Remote monitoring — control via smartphone or computer
• Extended warranty — up to 5 years on airend

FourCore Compressor Maintenance

Maintenance Intervals

Thanks to FourCore technology, maintenance intervals are extended compared to standard:

• Daily — visual inspection, oil level check
• Every 2000 hours — oil and oil filter replacement
• Every 4000 hours — air filter replacement, belt check
• Every 8000 hours — separator replacement, comprehensive maintenance
• Every 40000+ hours — airend major overhaul

Original Spare Parts

Use only original Gardner Denver spare parts to guarantee reliability and maintain warranty:

• Gardner Denver compressor oils
• Air and oil filters
• Oil separator elements
• Valve repair kits
• Bearings and seals

Why Choose FourCore

Buy Gardner Denver FourCore Compressor

You can order a FourCore compressor 45-55 kW from our company. We offer:

• Official dealer of Gardner Denver
• Competitive price — 55 kW compressor price with maximum discount
• Free calculation of compressed air needs
• Delivery worldwide within 2-5 days
• Installation and commissioning by certified engineers
• Warranty from manufacturer up to 5 years
• Original spare parts from stock
• Service maintenance worldwide
• Leasing and installments — flexible financing options

Contact our experts for a free consultation and calculation of the optimal FourCore compressor configuration for your enterprise!