HPS x Rocker 400C | Mid-Range PTFE Coated Chemical Resistant Vacuum Pump

The HPS x Rocker 400C is the mid-range workhorse of the C-Series — delivering 34 L/min flow rate with 99 mbar abs. maximum vacuum, PTFE-coated chemical resistance, and oil-free diaphragm operation. A reliable, versatile vacuum source for the majority of routine chemical laboratory vacuum applications.

Key Features — All Models

• PTFE-coated diaphragm chamber and FKM valves: chemical resistance to a wide range of corrosive gases
• Oil-free diaphragm drive: no lubricant, no oil changes, no oil mist — maintenance-free operation
• Built-in thermal protection: auto-shutdown on overheat, auto-resume when cooled
• Quiet, low-vibration design: superior weight distribution and vibration-proof assemblies
• CE, UKCA, RoHS certified | IP30 protection rating
• One-year manufacturer’s warranty

Specifications

Parameter	Value
Max. Vacuum	99 mbar abs.
Max. Flow Rate	34 L/min @60Hz | 31 L/min @50Hz
Hose Barb	ID8
Noise Level	60 dB
Max. Power	100W
Max. Current	1.0A @110V | 0.4A @220V
Motor Speed	1750 RPM @60Hz | 1450 RPM @50Hz
Certifications	CE, UKCA, RoHS
Protection	IP30
Safety	Built-in thermal protection (auto-shutdown / auto-resume)
Voltage	110V/60Hz or 220V/50Hz (specify on order)

Best For

• Vacuum filtration — membrane and glass fibre
• Gel drying
• Solid-phase extraction (SPE)
• Solvent purification for general lab use

Applications

• Vacuum filtration of aqueous and organic samples
• HPLC solvent purification and degassing
• Solid-phase extraction (SPE) and sample preparation
• Vacuum evaporation, concentration, and drying
• Gel drying and vacuum oven applications
• Defoaming of culture media and reagents
• General laboratory vacuum source for moderate chemical environments

FAQs

Q: Are the pumps resistant to strong acids and alkalis?
A: The PTFE-coated diaphragm and FKM valves provide good resistance to a wide range of moderately corrosive gases. They are NOT recommended for strong acids (e.g. HF, concentrated H₂SO₄) or strong alkalis. Contact us for chemical compatibility guidance.

Q: Do the pumps require oil or regular maintenance?
A: No. All C-Series pumps are diaphragm-driven and completely oil-free — no lubricant, no oil changes, and no oil mist. Maintenance requirements are minimal.

Q: What is the thermal protection device?
A: Every C-Series motor includes a built-in thermal cut-off that automatically shuts the pump down if it overheats, then resumes operation once the motor has cooled to a safe temperature.

Q: Is a 220V/50Hz version available?
A: Yes. All models are available in both 110V/60Hz and 220V/50Hz versions. Contact Hi Pro Science to confirm your preferred voltage variant.

Get in Touch

Looking for a chemical-resistant, oil-free vacuum pump for your laboratory? Contact Hi Pro Scientific today for a quote, chemical compatibility advice, or a product demonstration in Singapore.

 info@hiproscientific.com
 +65 8163 3185 (Call or WhatsApp)