4-5HP Heavy Duty Air Compressor Pump, 3-Cylinder 12.7CFM Cast Iron & Aluminum Pump w/Triple Air Filters, 0.8MPa 1030RPM for Industrial/Construction, Low Noise & High Efficiency

Details Threaded Oil Cap: It helps to achieve convenient and tight connections to avoid oil leakage.Standard Pulley: It plays a balance and correction role to avoid bearing displacement, making the machine run smoother.Application It is widely used in the chemical industry, light industry, textile, food processing, health, electronics, machinery, mining, construction, scientific research, etc.Specification Color: BlackMaterial: Cast Iron, AluminumPower Source: ElectricCylinder: 65mm*3Maximum Working Pressure: 0.8MPa/115PSIMaximum Speed: 1030rpm (Matching the Overall Machine Speed)Exhaust Volume: 0.36m³/min/12.7cfmPipe Interface: 19mm/3/4inMatching Motor Power: 3KW/4HPGross Weight: 21kg/46.29 lbsPackage Size: 44*33*38cm/17.32*12.99*14.96inPackage Included 1 × Air Compressor Pump3 × Air Filter MufflersNotes Note: The pulley speed should not exceed 1000r/min.It should match the motor power. Please pay attention to the product specifications before ordering.When placing the pump head, the motor pulley and the belt pulley must be in the same straight line. The more aligned, the less vibration.After the screws are installed, the belt shall be tightened. If the belt is loose, please move the motor. After the screws are tightened, reinstall the belt.The new machine must be filled with engine oil before starting (Special engine oil for air compressors must be used), and the engine oil shall be added to the center of the red point of the oil mirror. Please change the oil for half a month for the first time, one and a half months for the second time, and change the oil for the next four to five months. Please pay attention to observation at ordinary times. If it is not enough, replenish it in time.The rotation direction of the pump head is clockwise. If it reverses, please adjust it in time.

• INDUSTRIAL-GRADE DURABILITY: Heavy-duty cast iron & aluminum construction with anti-rust paint ensures extreme wear/corrosion resistance. Reinforced 65mm cylinders and oversized crankcase enhance rigidity, reducing vibration by 45% and extending lifespan by 30% vs standard pumps
• TRIPLE-PUMP EFFICIENCY: Three independently controlled pump heads allow simultaneous gas supply to multiple devices. Isolate faulty units without shutting down operations — ideal for production lines requiring 10-12 CFM airflow
• ENERGY-SAVING & COOL RUNNING: Multi-pump design reduces energy use by 35% vs single-head compressors. Dual iron vent nozzles + aluminum cooling fins dissipate heat 50% faster, maintaining stable 4HP output with minimal oil leakage
• QUIET & EASY SETUP: Silenced air filters lower noise to 68dB for quieter workspaces. Pre-drilled base holes enable bolt-on installation in 15 minutes—compatible with 3KW motors (pulley speed ≤1000r/min)
• RELIABLE & SAFE OPERATION: Includes 3 air filter mufflers and threaded oil cap for leak-proof connections. Note: Use compressor-specific oil (initial oil change at 15 days)