Used Lab Equipment

Used Lab Equipment

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

Pumps: 16-30 of 80

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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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Heidolph ROTAVAC valve Vacuum PumpImage Coming Soon

Heidolph ROTAVAC valve Vacuum Pump

Cambridge ID #: 25644
This item is new to the Cambridge Scientific Used Lab Equipment Inventory. As a result, a product description is currently unavailable. For further information about this product, please inquire and a representative will contact you shortly.
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Harvest Right Scroll Pump - SP-GW11060 Dry Vacuum PumpImage Coming Soon

Harvest Right Scroll Pump - SP-GW11060 Dry Vacuum Pump

Cambridge ID #: 24155
This item is new to the Cambridge Scientific Used Lab Equipment Inventory. As a result, a product description is currently unavailable. For further information about this product, please inquire and a representative will contact you shortly.
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Wheaton Unispense 374 301 Peristaltic PumpImage Coming Soon

Wheaton Unispense 374 301 Peristaltic Pump

Cambridge ID #: 23807
This item is new to the Cambridge Scientific Used Lab Equipment Inventory. As a result, a product description is currently unavailable. For further information about this product, please inquire and a representative will contact you shortly.
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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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Waters 1525 HPLC Pump

Waters 1525 HPLC Pump

Cambridge Scientific ID #'s: 25367, 22188

The 1525 and 1525 with EF heads are integrated, high-pressure, binary HPLC pumps that feature on-board pulse dampening and efficient mixing. Their pulse-free solvent flow, from analytical to semi-preparative flow rates, makes them ideal for use with highly sensitive detectors.

Designed for use with 2 to 4.6 mm I.D. columns in routine LC and LC/MS applications, these pumps have a programmable flow-rate range of 0.00 to 10.00 mL/min in 0.01 mL increments.

Optional features:

  • Extended Flow (EF) heads for extended flow rate range up to 22.50 mL/min for use with 10 to 19 mm I.D. columns
  • 1500 Series Column Heater with a temperature range of 20 to 60 °C to maintain accurate, consistent column temperature
  • Integral vacuum degasser to remove dissolved gases from the mobile phase, improving performance and reliability
  • Automated seal wash helps extend the primary seal life for reliable operation
  • FlexInject manual dual injector module for both analytical and semi-preparative injections
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Pittsburgh Automotive 2.5 CFM - 98076 Vacuum Pump

Pittsburgh Automotive 2.5 CFM - 98076 Vacuum Pump

Cambridge ID #: 21339

Features:

Designed for deeper vacuum draw, this vacuum pump pulls vacuum down to 75 microns. Precision machined one-stage pump removes moisture from air conditioning systems to safely add refrigerant. This one stage vacuum pump is ideal for automotive air conditioning, HVAC work and other operations that require high vacuum pull from a compact pump.

  • One stage pump draws vacuum down to 75 micron
  • Durable die cast aluminum housing and convenient top handle for easy maneuvering
  • Easy-access oil fill port with viewing window for easy maintenance (oil included)
  • Dual ports for R134A and R12/R22 systems
  • Thermal and current overload protection

Specifications:

  • Capacity: 10 Pascal
  • AC Volts: 120
  • Flow rate: 2.5 CFM
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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, 21310, 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 #: 21337

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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Welch 2047B-01 *NEW* Vacuum Pump

Welch 2047B-01 *NEW* Vacuum Pump

Cambridge ID #: 25494

Specifications:

  • Applications: Filtration (1 to 6 funnels), Aspiration, Desiccation, SPE, Replace water aspirator, Vacuum Drying
  • Type: Laboratory Vacuum Pump
  • Free Air Displacement cfm (l/min.) @60Hz: 1.6(45)
  • Free Air Displacement m3/hr (l/min.) @50Hz: 2.3(38)
  • Ultimate Pressure: 60(80)
  • Maximum Vacuum: 27.6
  • Max Pressure PSIG (pascal): 100(106)
  • Motor Horsepower (watts):1/4(190)
  • Adjustable Vac. / Gas Ballast: Yes
  • Tubing Needed: 3/16(5)
  • Intake Thread NPT: 1/4
  • Overall Dimensions LxWxH in. (cm): 10x7.5x9 (25.4x19.1x7.7)
  • Intake Catch Jar: Yes
  • Exhaust Catch Jar: Yes
  • Adjustable Vacuum: Knob
  • Adjustable Pressure: Yes
  • Vacuum Gauge: Dial
  • Pressure Gauge: Dial
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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 Pump

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 Pump

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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