Vacuum Pump, Piston-Powered, 37 L/pm, 110V/1PH/60Hz

91-3970-07Vacuum/Pressure Pump, Piston-Powered, Oil-Free, maximum 37 L/min

Rocker 400 Laboratory Vacuum Pump with precise construction and quality moving parts, the noise level is only ~ 50 dB - the lowest among equivalent products! The pump not only keeps the laboratory quiet, but also protects the operator from noise disturbances. The Rocker 400 is next to maintenance-free because of the oil-free design. The Rocker 400 comes with guaranteed operation of two-years or 3000 working hours of free service parts (excluding the moisture filter)!

The Rocker 400 is equipped with a 1/6 hp motor and provides maximum 37 lpm (110V/60Hz)... 34 lpm (220V/50Hz) of free air displacement and 650 mm Hg of maximum vacuum. It also contains one moisture trap/vacuum regulator for filtrating particles and moisture from the inlet air and features adjustment of the vacuum level.  With its light weight, the Rocker 400 is not only suitable for laboratory liquid filtration, but also perfect for stack or ambient gas sampling.

To enable the pressure function, a Conversion Kit (P/N 167420-30) is required for the simple, time-minimal conversion from a vacuum pump to a compressor.

  • Quiet & Low Vibration: direct-driven motor and high quality rubber feet keep noise level ~ 50 dB
  • Compact & Lightweight: precise construction and aluminum die-cast
  • Clean & Maintenance Free
  • Safe & Comfortable: CE-approved
  • Liquid filtration
  • Microbiology
  • Suspended solid
  • Air sampling
  • Stack gas
  • Ambient air
  • Vacuum oven
  • Fume suction
  • Max. Power Consumption 147 Watts (110V); 125 Watts (220V)
  • 30 PSI 22 lpm (110V); 18 lpm (220V)
  • 20 PSI 23 lpm (110V); 23 lpm (220V)
  • Pressure:0 PSI 27 lpm (110V); 25 lpm (220V)
  • Noise Level 50 dB
  • Port Thread 5/16"
  • Net/Gross Weight 18.5 lbs (8.4 kg); 20.7 lbs (9.4 kg)
  • Pole 4 P
  • Horse Power 1/6 HP
  • Capacitor 10uf/250v (110V); 3uf/450v (220V)
  • Motor Speed 1700 rpm (110V); 1400 rpm (220V)
  • Maximum Pressure 60 psi
  • Maximum Current 1.51 Amps (110V); 0.6 Amps (220V)
  • 40 PSI 20 lpm (110V); 16 lpm (220V)

Catalog # Product Description
91-3970-07Vacuum/Pressure Pump, Piston-Powered, Oil-Free, maximum 37 L/min $515.00
Add a customer note to this item (Question, Reference Number, Etc.)
300 characters remaining

Related Products

Vacuum/Pressure Pump, Rocker, maximum 60 L/min, 91-3970-08
Vacuum Pump, Piston-Powered, 60 L/pm, 110V/1PH/60Hz
Price: $723.00
Vacuum Pump, Piston-Powered, 60 L/pm, 110V/1PH/60Hz
91-3970-08Vacuum/Pressure Pump, Piston-Powered, Oil-Free, maximum 60 L/min
Keyword/Catalog #:

Items in your Cart: 0  

Current Subtotal:$0.00

Checkout Button

Coal Laboratory

Water Testing

General Laboratory


Request a Quote

Catalog #/Cross Reference




ISO Certificate

Certificate of Analysis