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The 250W Vacuum Pump (approx. 1/3 HP) is a versatile, high-performance tool designed for various professional and industrial applications. This single-stage rotary vane pump is specifically engineered to provide a deep vacuum, making it an essential tool for HVAC/R technicians, resin degassing, vacuum sealing, and laboratory experiments. Below is the exhaustive product description and technical specifications organized for professional reference. 1. Motor & Build Quality The heart of the pump is a 250W high-torque motor featuring pure copper windings. This ensures the pump doesn't stall under heavy loads and maintains high efficiency during long operation cycles. The aluminum alloy casing is designed for superior heat dissipation, protecting the internal components from overheating. 2. Filtration & Oil Management Large Oil Sight Glass: Allows for easy monitoring of oil levels and quality (checking for contamination or emulsification). Oil Mist Filter: The exhaust port is equipped with a filter to significantly reduce the discharge of oil vapor into the workspace. Drain Valve: Positioned at the bottom for quick and complete oil changes. 3. Advanced Cooling Mechanism Equipped with an integrated high-velocity cooling fan and a finned aluminum motor housing, this pump is built for stability. This allows the unit to run for extended periods without thermal cutout, which is critical for deep vacuum pulls in large HVAC systems. Â Â Â Â Overview
Specifications
Feature
Technical Specification
Power Output
250W (approx. 0.33 HP / 1/3 Horsepower)
Flow Rate / Displacement
2.5 CFM to 3.5 CFM (Dependent on specific model)
Ultimate Vacuum
5 Pa (0.05 mbar)
Voltage / Frequency
220V–240V / 50Hz (Standard)
Pump Type
Single-Stage Rotary Vane
Oil Capacity
200ml – 250ml
Inlet Port
1/4" SAE (Standard)
Motor Material
Pure Copper Coil for Heat Resistance
Casing Material
Heavy-Duty Die-Cast Aluminum Alloy
Cooling System
High-Volume Internal Fan for Continuous Use
Net Weight
5.5kg – 6.5kg (Approximate)
Detailed Product Breakdown
Key Applications
Industry
Specific Use Case
HVAC / Refrigeration
Evacuating moisture and air from AC units, refrigerators, and car AC systems before charging with refrigerant.
Resin Casting
Degassing silicone, epoxy resin, and polyurethane to ensure bubble-free molds and finished products.
Woodworking
Powering vacuum chucks for lathes or vacuum bags for stabilizing wood.
Laboratory
Suction filtration, vacuum drying, and general scientific experiments requiring low-pressure environments.
Food Processing
Vacuum packaging and preserving to extend shelf life of perishables.
Maintenance & Safety Guide
Maintenance Task
Frequency / Recommendation
Oil Change
Change after every 20-30 hours of use or if oil becomes cloudy/milky.
Start-Up Protocol
Ensure oil is filled to the center line before starting. Never run the pump dry.
Exhaust Caution
Always use in a well-ventilated area due to minor oil mist discharge.
Storage
Seal the inlet and exhaust ports when not in use to prevent moisture and dust from entering the pump.
Temperature
Do not operate the pump in temperatures below 5°C as oil viscosity may cause motor strain.
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| Weight |
15 kg |
|---|
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