Piston compressor Force Four

heliumnitrogenbreathing air

Force Four is a high-performance breathing air compressor from Coltri's Heavy Duty Line, designed for demanding applications requiring reliability, power, and advanced air purification. The compressor operates in 4 stages, ensuring optimal control and efficiency. - 4-stage high pressure pumping unit - Aluminum monoblock - Forced lubrication with low-pressure gear pump - Suction filter: 10 μm - Pipes, fittings, and nuts made of AISI 316 stainless steel - Intermediate condensate separator after the second and third stages - Minimum lubricating oil pressure switch - Safety valves after each compression stage - Special cast iron cylinders with low roughness lapping - Forged aluminum connecting rods - Forged steel crankshaft - High flow valves for the first, second, and third stages - Heavy-duty roller bearings - Hardened steel third stage with 6 special cast iron bands - Second and third stages with thrust pads to eliminate lateral forces on the pistons - Filter system: Hyperfilter - Electric motor - Transfers motion to the pumping unit via belt - Available as single-phase 7.5 kW or three-phase 7.5 to 11 kW - Purification system: Hyperfilter - Located after the last compressor separator and before the pressure maintenance valve - Ensures reliable treatment of breathing air according to DIN EN 12021 (with original filter cartridges) - Separator between 2nd and 3rd stages extracts maximum moisture - Filtering capacity: 3,050 m³ (inlet air at 20°C and 200 bar) - Electrical cabinet - Motor protection switch - Fixed calibration pressure switch: 232 or 300 bar - Autostart with pressure differential 15 bar (optional) - Transformer - Automatic drainage of all separators (every 15 minutes for 6 seconds) - Timer for automatic condensate drainage - Interstage pressure gauges for each compression stage (mounted in the compressor frame) - Frame - Open frame for easy maintenance and transport - Tilting motor carrier plate for constant V-belt tension - Protective thermo-formed casing channels cooling air over cylinders and pipes - Control console with inter-stage pressure gauges, temperature indicator, phase sequence alarm, oil shortage alarm, run/stop and manual condensate drain controls - Steel construction with scratch-resistant powder coating (RAL 9005 black) Standard Equipment - 4 Cylinder connections (DIN 232, DIN 300, or INT/YOKE 232 bar) - 4 whips, 1.2 m each - Pressure holding valve - Interstage control manometers - Double Hyperfilter system (PED certified) - Stand-alone purification system - Automatic condensate drain - Oil level control with automatic shutdown - Oil pump - Frame color: Black RAL 9005 Technical Specifications - Type of gas: Breathing air EN 12021, Nitrox (max 40% O2), Helium, Nitrogen - Suction pressure: Atmospheric up to 300 bar - Pressure rating: 250 bar / 330 bar / 360 bar - Operating pressure: 232 bar / 300 bar / 330 bar - Max working pressure: 420 bar - Allowable temperature range: -10°C to +40°C - Allowable altitude range: 0 to 1,500 m SLM - Maximum allowed inclination: 15° - Design: Basic - Operating voltage (standard): 230 V, 60 Hz / 400 V, 50 Hz - Other voltages: 230 V, 50 Hz / 440 V, 60 Hz (three-phase motors at 60 Hz: power increases by 20%) - Oil: Coltri ST 755 synthetic oil - Oil change interval: 1 year / 1,000 h - Frame: Steel, black RAL 9005, powder coated, scratch resistant Compressor Performance - Pump group flow rate (measured filling 10L cylinder from 0-200 bar, ±5% at +20°C): - 400 EM: 400 l/min, 24 m³/h, 14.1 CFM - 450 ET: 450 l/min, 27 m³/h, 15.9 CFM - 650 ET: 650 l/min, 39 m³/h, 23 CFM - Purification system: Hyperfilter x2 - Cooling air flow: - 400 EM: 4,050 m³/h - 450 ET: 4,050 m³/h - 650 ET: 4,820 m³/h - Weight: - 400 EM: 250 kg (551 lb) - 450 ET: 250 kg (551 lb) - 650 ET: 260 kg (573 lb) - Dimensions (W x D x H): 123.6 x 70.6 x 79.6 cm (48.7 x 27.8 x 31.3 in) Engine - Power: - 400 EM: 7.5 kW (10 Hp) - 450 ET: 7.5 kW (10 Hp) - 650 ET: 11 kW (15 Hp) - Engine type: - 400 EM: Single-phase electric - 450 ET: Three-phase electric - 650 ET: Three-phase electric - Operating voltage/frequency: - 400 EM: 230 V, 60 Hz - 450 ET: 400 V, 50 Hz - 650 ET: 400 V, 50 Hz - Rated current: - 400 EM: 41.3 A - 450 ET: 15 A - 650 ET: 23 A - Engine RPM: - 400 EM: 3,525 - 450 ET: 2,870 - 650 ET: 2,910 - Protection class: IP 55 Purification System Hyperfilter - High-capacity system for high-pressure compressors producing breathing air - Two cartridges in series: first with molecular sieve (moisture removal), second with molecular sieve + activated carbon (removes oil vapors and contaminants) - Greater filtration range and effective purification for high-volume, high-reliability applications - Working pressure (standard): 250 / 330 / 360 bar - Maximum working pressure: 420 bar - Processable air capacity: 3,050 m³ (at 20°C, 330 bar) - With CO removal cartridge, capacity reduced by ~20%