Used Lab Equipment

Used Lab Equipment

We typically have used and reconditioned pumps in stock from leading manufacturers like Cole-Palmer and Watson/Marlow.

Hplc Nano Pump: 31-45 of 305

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Watson Marlow 120S Peristaltic Pump

Watson Marlow 120S Peristaltic Pump

Cambridge ID #: 17813

Features:

The 120 Series are small, but full-featured, laboratory pumps with simple intuitive operation and four pumphead options to suit any application.

  • Flow rates 0.0001 to 36mL/min at 2 bar (30psi)
  • Compact footprint requiring minimal benchtop space: stacks two high
  • Four pumphead options, with 1-, 2-, or 3-channel options to cover any application
  • Manual operator control or manual/remote pump options
  • Superior Speed Control up to 20,0000: ±1% set point accuracy
  • IP31 ingress protection for wipedown environments
  • Maintenance-free brushless DC motor Choose from 1-, 2- or 3-channel pumps
  • Smooth wipe-down enclosure for ultimate cleanability
  • Lockable keypad to prevent tampering

Specifications:

  • Display Type: Digital
  • Maximum Pressure: 30 psi
  • Overall Height:2cm
  • Overall Length:1 in.
  • Motor Type: Brushless DC
  • Reversible: Yes
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Welch 1400N Vacuum Pump

Welch 1400N Vacuum Pump

Cambridge ID #: 14860

Specifications:

  • Pumping Speed Displacement: 0.9 CFM
  • Hertz: 50/60 Hz
  • Voltage: 115/220
  • Oil capacity: 0.62 qt.
  • Weight: 58 lbs.
  • Dimensions LxWxH: 18x9x13 in.
  • Intake: 3/4-20
  • Outtake: 3/4-20
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Welch 1402 Vacuum Pump

Welch 1402 Vacuum Pump

Cambridge ID #: 11804

DuoSeal Vacuum Pumps are known for their ruggedness world-wide. These rotary vane pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing reservoir temperature to lessen chemical reactivity. Pump can be ordered with an optional exhaust filter to control oil mist.

Specifications:

  • Free Air Displacement cfm (l/min.) @60Hz: 5.6(160)
  • Ultimate Pressure: 1 x 10-4(0.00013)
  • Pump RPM: 525
  • Oil Capacity: 2.25(2.1)
  • Motor Horsepower (watts): 1/2(370)
  • Overall Dimensions LxWxH in. (cm):  20x12x15 (51x30.5x60)
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Welch 1402B-01 Duoseal Vacuum Pump

Welch 1402B-01 Duoseal Vacuum Pump

Cambridge ID #: 11271

DuoSeal Vacuum Pumps are known for their ruggedness world-wide. These rotary vane pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing reservoir temperature to lessen chemical reactivity. Pump can be ordered with an optional exhaust filter to control oil mist.

Specifications:

  • Free Air Displacement cfm (l/min.) @60Hz: 5.6(160)
  • Ultimate Pressure: 1 x 10-4(0.00013)
  • Pump RPM: 525
  • Oil Capacity: 2.25(2.1)
  • Motor Horsepower (watts): 1/2(370)
  • Overall Dimensions LxWxH in. (cm):  20x12x15 (51x30.5x60)
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Edwards 18 Vacuum Pump

Edwards 18 Vacuum Pump

Cambridge ID #: 19313

Features:

The EM range of oil-sealed rotary pumps is renowned for their high ultimate vacuum, rapid pumping speed, quiet operation and the ability to withstand vapour. They are commonly used for laboratory and light industrial applications. It is a freestanding instrument with the drive provided through a flexible coupling by either a single phase or three phase motor.

 

Specifications:

  • Displacement:

 

                  50Hz: 20.5 m3h-1 /12.1 ft3min-1
                  60Hz: 25.0 m3h-1 /14.7 ft3min-1

 

  • Speed (Pneurop 6602):

 

                   50 Hz: 17.0 m3h-1 /10 ft3min-1
                   60Hz: 20.4 m3h-1 /12.1 ft3min-1

  • Ultimate vacuum (total pressure): 

                   without gas purge: 1 x 10-3 mbar /7.4 x 10-4 Torr
                   with gas purge: 1.5 x 10-1 mbar /1.1 x 10-2 Torr
                   with Fomblin: 1 x 10-2 mbar /7.5 x 10-3 Torr

  • Inlet connection: NW25
  • Outlet connection: Nozzle 15mm external Ø removable from 3/4 in BSP tapped hole
  • Max permitted pressure at outlet: 0.5 bar gauge /7 psig
  • Max inlet pressure for water vapour: 20 mbar / 15 Torr
  • Max water vapour pumping rate: 0.3 kg h-1
  • Operating temp range: 13-40°C
  • Nominal Rotation speed 50/60Hz: 1440 /1720 rpm
  • Power connector 1-ph: IEC EN 60320 C19
  • Motor power 50Hz: 0.55 kW
  • Motor power 60Hz: 0.75 kW
  • Noise at 50Hz: 57 dB(A)
  • Oil capacity max: 1.05 litre
  • Oil capacity min: 0.75 litre
  • Recommended oil: Ultragrade 19
  • Thermal overload device: prevents overheating (single phase only).
  • The drive is provided through a flexible coupling: by a single‑phase or three‑phase (four pole) motor.
  • The motors: are totally enclosed and are cooled by the motor cooling fan.
  • Full height O ring sealed oil sight glass: for easy checking of oil level and condition

 

 

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Welch 2025 Vacuum Pump

Welch 2025 Vacuum Pump

Cambridge Scientific ID #'s: 21267, 7633, 21261, 6352

Maintains efficiency and extends diaphragm life.

Specifications:

 

  • Free Air Displacement: 35 L/min
  • Max Pressure: 29.5 Pascal
  • Dimensions: 11.8 L x 8 W x 11 1/2 H (in)
  • Weight: 13.6 kg

 

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Welch 2026 Vacuum Pump

Welch 2026 Vacuum Pump

Cambridge ID #: 21281

Features:

Controlled vacuum for Rotary evaporators, Centrifugal concentrators, and other evaporative processes.

Specifications:

  • Pumping Speed: 35 l/min
  • Max. Vacuum: 2 torr
  • Tubing Needed: 1/4" ID
  • Exhaust ./ Intake threads: 3/8
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Watson Marlow 323E Peristaltic Pump

Watson Marlow 323E Peristaltic Pump

Cambridge ID #: 18844

Description:

Peristaltic pumps are the simplest pump, with no valves, seals or glands to clog or corrode. The fluid contacts only the bore of a tube, eliminating the risk of the pump contaminating the fluid, or the fluid contaminating the pump. Peristaltic pumps can run dry. Peristaltic pumping is ideal for most fluids, including viscous, shear-sensitive, corrosive and abrasive fluids, and those containing suspended solids. They are especially useful for pumping operations where hygiene is important. Peristaltic pumps operate on the positive displacement principle. They are particularly suitable for metering, dosing and dispensing applications. Pumps are easy to install, simple to operate and inexpensive to maintain.

Specifications:

  • Supply voltage/frequency: 100-120V/200-240V 50/60Hz 1ph
  • Maximum voltage fluctuation: ±10% of nominal voltage. A well regulated electrical mains supply is required along with cable connections conforming to the best practice of noise immunity
  • Power consumption: 100VA
  • Full load current: <0.43A at 230V; <0.86A at 115V
  • Operating temperature range: 4°C to 40°C, 40°F to 104°F
  • Storage temperature range: -40°C to 70°C, -40°F to 158°F
  • Maximum altitude: 2,000m, 6,560ft
  • Humidity (non-condensing): 80% up to 31C, 88F, decreasing linearly to 50% at 40C, 104F
  • Noise: <70dB(A) at 1m
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Cole Parmer 7518-10 Masterflex Peristaltic PumpImage Coming Soon

Cole Parmer 7518-10 Masterflex Peristaltic Pump

Cambridge ID #: 5029

Pump head ideal for fast tubing changes and reduced maintenance. The design and adjustable tubing retention allow for multiple tubing sizes—change tubing without removing head from drive.

Specifications:

 

  • Dimensions: 114 L x 64 W x 102 H (mm)
  • Max Flow Rate: 2300 mL/min
  • Min Flow Rate: .001 mL/min
  • Tubing sizes: L/S (13, 14, 16, 17, 18, 25)
  • Rollers:
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Cole Parmer 7518-12 Masterflex Peristaltic PumpImage Coming Soon

Cole Parmer 7518-12 Masterflex Peristaltic Pump

Cambridge ID #: 7106

Pump head ideal for fast tubing changes and reduced maintenance. The design and adjustable tubing retention allow for multiple tubing sizes—change tubing without removing head from drive.

Specifications:

 

  • Dimensions: 114 L x 64 W x 102 H (mm)
  • Max Flow Rate: 2300 mL/min
  • Min Flow Rate: .001 mL/min
  • Tubing sizes: L/S (13, 14, 16, 17, 18, 25)
  • Rollers:
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Cole Parmer 7523-30 Peristaltic Pump

Cole Parmer 7523-30 Peristaltic Pump

Cambridge ID #: 18860

Description:

The Console Drives are highly featured yet easy to operate Masterflex L/S pump drives, These drives are self contained compact unites that include a drive motor and all operating controls. The keypad is laid out on a sloped front panel for ease of control and for quick and easy indication status. A digital display provides a continuous indication of flow rates, actual rpm or percentage of maximum rpm.

Specifications:

  • Maximum Speed: 100 rpm
  • Minimum Speed: 1.6 rpm
  • Operating Temperature: 0°C to 40°C
  • Storage Temperature: -10°C to 60°C
  • Chemical Resistance: Exposed material is paint, plastic, aluminum, and vinyl
  • Line Voltage Limits: 90 to 130 V AC, 50/60 Hz
  • Dimensions (L x W x H): 11.5 x 7 x 7 in. (29.2 x 17.8 x 17.8 cm)
  • Weight: 15 lbs. (6.8 kg)
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Cole Parmer 7554-80 Peristaltic PumpImage Coming Soon

Cole Parmer 7554-80 Peristaltic Pump

Cambridge ID #: 20780

Description:

An economical and versatile variable-speed drive with a wide flow range:

  • Separate single-turn speed control and on/off switch with green power indicator—maintain speed setting while turning pump on/off.
  • The 1/20-hp unidirectional motor (counterclockwise) has soft start and back EMF for ±5% speed control.
  • Stackable painted steel housing is IP22 rated for protection from vertically falling water.
  • 115 VAC models are UL and cUL listed; 230 VAC models are CE marked in compliance with European Community standards.
  • 6-ft (1.8-m) line cord; 115 VAC: U.S. standard plug; 230 VAC: IEC 320/CEE22 socket—pumps are shipped with cord/plug set specific to destination country.

Specifications:

  • Min RPM: 7
  • Max RPM: 200
  • Max. Flow Rate:1130 mL/min
  • Min. Flow Rate: 0.42 mL/min
  • Dimensions (L x W x H): 9” x 7” x 6” (229 x 178 x 152 mm)
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Cole Parmer 77240-20 Peristaltic PumpImage Coming Soon

Cole Parmer 77240-20 Peristaltic Pump

Cambridge ID #: 19352

Features

  • Control Type: Variable-Speed Analog
  • Number Of Channels: 1
  • No washdown capable
  • Continuous duty cycle



Specifications:

  • Speed Range: 35 - 200 rpm
  • Flow Rate Per Channel Range: 1.6 - 239 mL/min
  • Number of Rollers: 3
  • Power Consumption: 90 - 260 VAC, 50/60 Hz
  • Dimensions (W x H x L): 5.25 x 4.5 x 8.5 in
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Welch 8920A Vacuum PumpImage Coming Soon

Welch 8920A Vacuum Pump

Cambridge ID #: 18943

Description:

Refrigeration service pump is designed for removing air and moisture from industrial and commercial chillers. Pump includes a gas ballast valve that inhibits condensation reducing corrosion, an On/Off switch, 3-wire cord, and oil.

Specifications:

  • Displacement: 7.7 cfm
  • Ultimate Pressure Torr: 3 x 10-4
  • Intake Male SAE Flare: 3/4
  • NPT Inlet: 3/4"
  • Voltage: 115/230
  • Amps AC: 6.8/3.4
  • Dimensions (L x H x W): 20.5” x 10.75” x 7.125”
  • Hz: 60
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Welch Duoseal 1405 Vacuum Pump

Welch Duoseal 1405 Vacuum Pump

Cambridge Scientific ID #'s: 20619, 20622

Features:

DuoSeal Vacuum Pumps are known for their ruggedness world-wide. These pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing reservoir temperature to lessen chemical reactivity. Pump can be ordered with an optional exhaust filter to control oil mist.

Specifications: 

  • Applications: Vacuum Ovens, Glove Boxes, General Laboratory Vacuum 
  • Free Air Displacement cfm (l/min.) @60Hz: 3.2(90)
  • Ultimate Pressure: 1 x 10-4(0.00013)
  • Pump RPM: 525
  • Intake Thread NPT: 1-20 straight thread
  • Exhaust Thread NPT: 1-20 straight thread
  • Overall Dimensions LxWxH in. (cm): 20x12x15 (51x30.5x60)
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