The HC250 is a twin-cylinder oil-free piston vacuum pump for OEM equipment integration. The HC250A/B series offers 220 V and 110 V versions, with single-stage and dual-stage vacuum configurations. The supplied datasheet lists power below 200 W, a 185 × 102 × 149 mm body and a net weight of 4.8 kg.
Choose the vacuum configuration for your process
The single-stage configuration is listed with a flow rating of ≥75 L/min and a maximum vacuum of -90 kPa. The dual-stage configuration is listed with ≥37.5 L/min and a maximum vacuum of -98 kPa. These are separate flow and maximum-vacuum specifications, not a claim that the listed flow is maintained at maximum vacuum. Request a performance curve for your intended operating point before selecting a configuration.
Compact installation and electrical options
The 123 × 70 mm mounting footprint supports installation planning in compact machines. Check clearance for hoses, wiring, cooling airflow and service access against the dimensional drawing. The datasheet lists 220 V / 110 V supply options and 1,400 / 1,700 rpm speeds; confirm the exact model, frequency and wiring with your quotation.
Class F motor insulation, a four-pole motor and an automatic-reset thermal protector rated at 145 ± 5 °C are specified. The listed ambient range is -5 °C to +40 °C. Noise is listed as ≤50 dB(A); request the measurement conditions if noise performance is a selection criterion. Duty cycle and enclosure ventilation need application-specific confirmation.
Applications to discuss with your equipment team
Potential integration projects include laboratory filtration and sample handling, compact vacuum chambers, fixture holding and light automation. Selection depends on chamber volume, leakage, target pressure, process gases and cycle time. Oil-free describes the piston mechanism; it does not establish suitability for every gas, liquid, hazardous atmosphere or regulated medical use. Confirm material compatibility and any required inlet separation or filtration before use.
Technical specifications
| Parameter | HC250A/B series |
|---|---|
| Pump design | Twin-cylinder oil-free piston vacuum pump |
| Supply options | 220 V / 110 V; confirm frequency and model selection |
| Rated power | <200 W |
| Single-stage configuration | Listed flow ≥75 L/min; maximum vacuum -90 kPa |
| Dual-stage configuration | Listed flow ≥37.5 L/min; maximum vacuum -98 kPa |
| Rated speed | 1,400 / 1,700 rpm, depending on version |
| Noise | ≤50 dB(A), datasheet value; test conditions on request |
| Motor | 4 poles; Class F insulation |
| Thermal protector | Automatic reset, 145 ± 5 °C |
| Ambient temperature | -5 °C to +40 °C |
| Dimensions (L × W × H) | 185 × 102 × 149 mm |
| Mounting footprint | 123 × 70 mm |
| Net weight | 4.8 kg |
| Threaded connection | 1/4 inch; confirm thread standard and port assignment |
| Power cable | 650 ± 20 mm, black |
| Ground cable | 500 ± 20 mm, yellow-green |
Questions before ordering
Which configuration should I select?
Compare the required operating vacuum and pumping speed, not just the maximum-vacuum number. Ask for a curve and confirm the configuration for your chamber or process.
Does the pump require oil changes?
The piston mechanism is oil-free. This does not eliminate inspection of filters, fittings and other service items; request the maintenance instructions for the supplied version.
Are both supply voltages included in one pump?
The datasheet lists 220 V and 110 V series options. Do not assume a single unit is dual-voltage; specify your supply voltage and frequency when requesting a quote.
Can I use it in a medical or solvent-handling system?
Application suitability must be assessed for the complete system. Request confirmation for the intended gases, liquids, protection measures and target-market requirements before use.
What documents should I request?
Ask for the current model-specific datasheet, wiring instructions, performance curve and relevant conformity documents. General brochure claims are not a substitute for checking the exact model and document scope.
Request a model-specific quotation
Send your voltage, frequency, vacuum target, required operating flow, duty cycle, quantity and destination through our contact page. Browse the vacuum pump range or discuss an OEM integration project. Prices, availability and delivery terms are confirmed in the quotation.
Download the complete technical datasheet for specifications and performance curves.
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